47results about How to "Improve docking stability" patented technology

An ultrasonic diagnostic system has a tablet type electronic device for ultrasonic diagnosis and a docking station for mounting thereto the electronic device removably. The docking station includes a receptacle section against which one side of the electronic device comes into abutment when mounting the electronic device, and a hold-down section for holding down the electronic device releasably on the side opposite to the one side when mounting the electronic device.

An ultrasonic diagnostic system has a tablet type electronic device for ultrasonic diagnosis and a docking station for mounting thereto the electronic device removably. The docking station includes a receptacle section against which one side of the electronic device comes into abutment when mounting the electronic device, and a hold-down section for holding down the electronic device releasably on the side opposite to the one side when mounting the electronic device.

An electrical building block includes docking structures, a first electrical connection mechanism, a second electrical connection mechanism and a circuit board. The docking structures are located at a top side of the electrical building block. The first electrical connection mechanism and the second electrical connection mechanism are electrically connected with the circuit board and disposed within the electrical building block. The first electrical connection mechanism is penetrated through the top side and elastically protruded out of the docking structures. The second electrical connection mechanism is located at a bottom side of the electrical building block. The second electrical connection mechanism of the electrical building block is docked with the first electrical connection mechanism of an adjacent electrical building block. Moreover, the two electrical connection mechanisms are formed on at least one lateral side of the electrical building block to be connected with another adjacent electrical building block.

The invention discloses a safety anti-inclining and anti-sliding vehicle carrying device which comprises a vehicle carrying plate. Two rectangular slots are symmetrically formed in the vehicle carrying plate, a wireless driving air cylinder is arranged at the bottom end of each rectangular slot, and a telescopic column is arranged at the upper end of each wireless driving air cylinder; a lifting plate is arranged at the upper end of each telescopic column, and two gravity sensors are arranged in each lifting plate in a clamping mode; and vehicles are jointly arranged at the upper ends of the two lifting plates, and buffering slope bodies are symmetrically arranged at the two sides of the vehicle carrying plate. The safety anti-inclining and anti-sliding vehicle carrying device is stable in structure, high in intelligent degree, convenient to operate, low in labor cost, the situation of inclined sliding of the vehicles on the vehicle carrying plate during the horizontal-moving, lifting and conveying process of the vehicles can be effectively solved, safety and stability during parking of the vehicles are guaranteed, and the invention further provides a protecting electric circuit to ensure stable running of the working system, so that the working efficiency is guaranteed. According to the safety anti-inclined sliding vehicle carrying device, practicability and novelty are worth to be approved, and the safety anti-inclined sliding vehicle carrying device is suitable for popularization.

The invention discloses a steam heating type cooking utensil, belongs to the field of kitchen household appliances, and solves the problem that pots in existing steam rice cookers cannot be taken andplaced conveniently. The steam heating type cooking utensil includes a machine body and a pot externally arranged on the machine body. The machine body is provided with a steam generator and a steam outlet communicating the steam generator; the pot includes a pot body, a pot cover and an arm-type handle arranged on the pot cover, and the pot body and the pot cover are defined to be arranged outside a cooking cavity; and the arm-type handle is provided with a butt joint part extending out of the peripheral side of the pot cover, a steam butt joint port communicating the cooking cavity is arranged on the butt joint part, and the butt joint part is in butt joint with the machine body so as to enable the steam butt joint port to communicate the steam outlet. The steam heating type cooking utensil optimizes the connection mode between the pot and the machine body, thus eliminating an original machine head, the appearance of the cooking utensil can be more exquisite and the pot can be more convenient to take and place.

The invention relates to the technical field of communication, and discloses an optical fiber connector assembly. The optical fiber connector assembly comprises a hybrid adapter assembly and an optical fiber connector, the hybrid adapter assembly comprises a first adapter and a second adapter which are connected with each other, the first adapter is connected with a first optical fiber connector,and the second adapter is connected with a second optical fiber connector which is in butt joint with the first optical fiber connector; and the second adapter is provided with a connecting arm used for fastening the second optical fiber connector, and is also provided with a transition bridge used for assisting the butt joint of the first optical fiber connector and the second optical fiber connector. The structure of the optical fiber connector assembly is simplified, connection and disconnection can be achieved in a pluggable mode after the matching mechanism of the second adapter and the second optical fiber connector is optimized, meanwhile, the locking structure is arranged, the butt joint stability of optical fibers is improved, and the stability and reliability of communication transmission are ensured.

The invention discloses a safety cock of a hydraulic machine. The safety cock comprises a main rod; telescopic square rods are connected to the two sides of the main rod in a sleeving mode; a controller is connected to the middle of the front surface of the main rod in a bolted mode; variable-pitch slide rails are arranged on the back surfaces of the telescopic square rods; push rod mechanisms areconnected to the interiors of trays in a sliding mode through pulleys; threaded holes are formed in the top ends of cock blocks; bolts are embedded in the bottom ends of the cock blocks; buffer cushion blocks are connected to the top ends of the cock blocks in a threaded mode; electric cylinders are fixedly connected to upper parts of servo motors; and bearing plates are connected to the middle parts of the electric cylinders in a sliding mode through push rods. According to the safety cock, a double-bolt structure is adopted to improve the supporting stability of a falling mold, the phenomenon that the mold tilts by the side and gets damaged can be avoided, the height of the safety cock can be changed by adjusting the number of the cock blocks according to the height of the stroke of themold, the buffer cushion blocks can effectively increase the falling impact force, the damage caused by the collision between the safety cock and the mold can be avoided, the mold with any width canbe stably clamped by utilizing the variable pitches of the telescopic square rods, and the applicability is high.

The invention relates to a steel column mounting structure with a rapid mounting function and a construction process thereof, the steel column mounting structure comprises a first steel column and a second steel column, a plurality of positioning blocks are arranged on the end wall, facing the second steel column, of the first steel column, a plurality of deviation preventing grooves are formed inthe end wall, facing the first steel column, of the second steel column, a connecting assembly is arranged between the first steel column and the second steel column, the connecting assembly comprises side edge strips and clamping pieces, and the clamping pieces are used for being connected with the side edge strips abutting against with each other. The construction process comprises the steps ofcarrying out steel column butt joint, carrying out steel column positioning, carrying out positioning assembly mounting, carrying out clamping piece mounting and carrying out concrete pouring strip filling. According to the steel column mounting structure with the rapid mounting function and the construction process thereof, the effects that the connecting strength and the connecting stability ofthe first steel column and the second steel column can be effectively guaranteed, and an operator can quickly fix and connect the first steel column and the second steel column conveniently are achieved.

The invention discloses an externally-expanding gradual-change inflatable docking unit used for outer space. The docking unit comprises a docking pipeline, wherein a connecting flange is installed at a first end of the docking pipeline, multiple sets of stopping blocks are sequentially arranged on the docking pipeline from a second end to the first end, the intervals between the stopping blocks are gradually changed, each set of stopping blocks is composed of two stopping blocks arrayed closely, a tubular elastomer is installed between every two adjacent sets of stopping blocks in a sealed mode, the tightness degrees of the multiple elastomers are identical or basically identical, and multiple through holes communicated inside and outside are formed in the wall of the part, between the first set of stopping blocks and the last set of stopping blocks, of the docking pipeline. The elastomers are installed on the docking pipeline in the sealed mode, in this way, stability of the whole docking unit is enhanced after docking, and a controlled object is reliably and easily operated. By the adoption of the elastomers which are gradually increased or decreased in length and uniform in tightness degree, the docking unit can adapt to various docking objects of different diameters, and then the application range of the docking unit is enlarged.

The invention belongs to the technical field of logistics tracks, and particularly relates to a linear sliding type annular shuttle track turnout device. According to the linear sliding type annular shuttle track turnout device, by arranging an outer side single-side track, an inner side single-side track, paired movable track units, a first single-side movable track unit and a second single-sidemovable track unit on a device underframe, the effect that an input track is selectively connected with a turning track or a straight track is achieved. The linear sliding type annular shuttle track turnout device has the advantages that a movable truck sliding type switching structure is compact and effective, sliding switching operation is rapid and convenient, the length of the movable trucks is relatively short, materials are saved, the fixed truck can be connected with the turning movable truck and the straight movable truck, materials are further saved, and the turning and straight integral trucks are high in butt joint stability.

The invention provides a USB plug comprising a housing, a copper shell, an insulator, and a terminal, wherein the terminal is arranged on the insulator, the copper shell packages the insulator, the housing packages the copper shell, at least two edges of the plugging end of the housing are chamfering edges, and one side face of the plugging end of the housing is provided with a butt joint gap. The beneficial effect is that the stability of butt joint can be improved through the chamfering edges and the butt joint gap, and loosening and poor contact are avoided.

The invention discloses a ship docking device, and relates to the technical field of ship docking. The ship docking device comprises a sliding rail and at least one sliding assembly, the sliding rail is used for being fixed to a wharf shore and extending in the front line direction of a wharf, the sliding assemblies are slidably connected with the sliding rail, the sliding assemblies can be locked relative to the position of the sliding rail, and mooring rope supporting assemblies are arranged on the sliding assemblies and used for being fixedly connected with mooring ropes; the mooring rope supporting assemblies can recycle and support the mooring ropes when the ship tension borne by the mooring ropes is smaller than the recycling and supporting force of the mooring rope supporting assemblies on the mooring ropes; and when the ship tension borne by the mooring ropes is larger than the recycling and supporting force of the mooring rope supporting assemblies on the mooring ropes, the mooring ropes are released. The invention further discloses the wharf. The wharf comprises the ship docking device, the berth utilization rate can be increased, and the damage rate of the mooring ropes and the wharf can be decreased.

The invention discloses an anti-falling pipe fitting lifting device with a protection structure for aviation equipment production. The anti-falling pipe fitting lifting device comprises a base body, a driving assembly, an abutting part, a butt joint handle and a fixing part, wherein the driving assembly is mounted at the upper end of the base body through a bolt; a lifting rope is mounted at the output end of the driving assembly in a nested manner, and the lower end of the lifting rope is fixedly connected with a supporting part; meanwhile, the supporting part is connected with the outer end of the base body; and a first pull rope is mounted at the outer side of the base body in a nested manner, and the first pull rope is connected with the outer end of the supporting part. According to the anti-falling pipe fitting lifting device with the protection structure for aviation equipment production, the lifting rope drives the supporting part to upwards lift an object, the first pull rope moving to a corresponding state is wound along with the supporting part, then a limiting part at the tail end is driven to move in the opposite direction, so that the inner end of a pipe fitting is subjected to self-adaptive nested contact; and the positioning stability is continuously improved along with the increase of the height, therefore, the lifting safety is ensured.

The invention discloses detachable spraying equipment and a method thereof. The detachable spraying equipment comprises a storage box, a first pipeline communicates with the left side of the storage box, first pressure equipment communicates with the end, away from the storage box, of the first pipeline, a second pipeline communicates with the bottom of the front face of the right side of the storage box, and the end, away from the storage box, of the second pipeline communicates with an instantaneous flow control device. Through cooperation of the external first pressure equipment, artificial high pressure can be achieved, the instantaneous flow of the equipment can be controlled, and accurate control over the spraying number can be achieved; through cooperation of a flow dividing box and a spherical valve switch, control over the number of external equipment can be achieved, in other words, the opening and closing number of fourth pipelines can be controlled, so that the number of the spraying openings can be controlled, and spraying of different types of roads can be met; and through cooperation of movable buckles, the spraying openings and hollow metal pipes can be rapidly fixed, and meanwhile the spraying openings and the hollow metal pipes can be rapidly disassembled.

The invention discloses an ultra-thick slab continuous casting tundish butt-joint speed increasing operation method, relates to the technical field of steel production. The ultra-thick slab continuouscasting tundish butt-joint speed increasing operation method can reduce the damage to equipment due to throwing and large straightening resistance caused by overcooling of a casting blank during lowpulling speed in the butt-joint process on the premise of ensuring smooth butt-joint of continuous casting tundishes, avoids the butt-joint bleed-out condition caused by poor connection of a front blank shell and a rear blank shell due to high butt-joint speed increase, improves the butt-joint stability of ultra-thick slab continuous casting to the maximum extent, and achieves the purposes of stable and high yields of a continuous casting machine and production cost reduction.

The invention discloses an abutting supporting type wide-application-range secondary supporting device for a bridge support, the abutting supporting type wide-application-range secondary supporting device comprises a butt joint handle, a supporting block, a fixing rod, a connecting piece, a supporting rod and a hook piece, the outer side of the butt joint handle is fixedly connected with a threaded rod, and the outer end of the butt joint handle is provided with the supporting block in a nested mode; the outer end of the supporting block is connected with a fixed rod in a welded manner; and the outer ends of the supporting blocks are connected with fixing rods in a welded mode, the outer ends of the threaded rods are provided with butt joint blocks in a threaded mode, the outer sides of the butt joint blocks are fixedly connected with guide rods, the outer sides of the guide rods are provided with mounting blocks in a nested mode, and the upper ends of the mounting blocks are connectedwith the outer sides of the fixing rods. According to the abutting supporting type wide-application-range secondary supporting device for the bridge support, a user only needs to hold the threaded rod by hand to rotate, the abutting supporting type secondary supporting device can stably cooperate with the fixing rod to drive the butt joint block to conduct position adjusting work outwards, and then the abutting piece installed at the outer end of the abutting supporting type secondary supporting device in a nested mode moves outwards accordingly; and self-adaptive abutting and supporting workis carried out until the inner end of the object is contacted.

The invention discloses an autoclaved aerated concrete wallboard, and relates to the field of buildings. The autoclaved aerated concrete wallboard comprises two wallboards, the structures of the two wallboards are the same, sliding grooves are formed in the upper sides of the wallboards, clamping plates are slidably connected into the sliding grooves, limiting grooves communicated with the sliding grooves are formed in the wallboards, and reset springs are fixedly connected to the left sides of the clamping plates. According to the autoclaved aerated concrete wallboard, when a rectangular plate is in butt joint with a fixing groove, the clamping plate slides from the interior of the sliding groove to the interior of a clamping groove till the butt joint of the rectangular plate and the fixing groove is completed and the clamping plate enters the clamping groove, so that the high efficiency of fixed splicing of the wallboard is guaranteed, the simplicity and convenience of limiting and fixing of the wallboard are improved, labor waste is greatly reduced during manual butt joint fixing, it is guaranteed that the clamping plate can be moved to reset quickly when the wallboard is not used through the elastic force of the reset spring, and the use simplicity of the clamping plate is guaranteed.

The invention relates to the technical field of composite component connection, discloses a composite pipe type connection joint, and solves the problem that a pipe type is prone to disengagement dueto the fact that joint connection is not tight enough. The composite pipe type connection joint comprises a composite pipe column I and a composite pipe column II, wherein a screwed joint I is arranged at one end of the composite pipe column I; a screwed joint II close to the screwed joint I is arranged at one end of the composite pipe column II; a connecting ring I is connected to the exterior ofthe screwed joint II; a connecting ring II is connected to the exterior of the screwed joint I; a connecting mechanism II sleeves the connecting ring I; a connecting mechanism I sleeves the connecting ring II; and the connecting mechanism II is connected to the connecting mechanism I through a sealing mechanism; Through the arrangement of the screwed joint I, the screwed joint II, the connectingring I, the connecting ring II, the connecting mechanism I and the connecting mechanism II, limiting and fixing of the connecting ring II and the connecting ring I can be achieved, and then butt jointoperation of the composite pipe column I and the composite pipe column II is completed.

The invention provides an intelligent underwater robot butt joint device and method. The butt joint device comprises a first underwater robot and a second underwater robot, wherein the first underwater robot and the second underwater robot are respectively provided with a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are detachably installed through a butt joint box. When the first underwater robot and the second underwater robot are in butt joint, the first connecting rod and the second connecting rod are conveniently and preliminarily clamped and fixed through a clamping and fixing mechanism; a pull block is pressed, a rubber locking ball is separated from a locking groove, and unlocking of the pull block is completed; and through reset of a reset spring, a power column drives a limiting clamping column to penetrate through a limiting opening to be connected with a locking clamping rod, the locking clamping rod is fixedlyconnected with a locking clamping groove in a clamped mode, then the first connecting rod and the second connecting rod are further fixed, and thus the butt joint stability of the first underwater robot and the second underwater robot is improved.

The invention discloses a robot and goods shelf alignment method and system. The robot and goods shelf alignment method comprises the following steps that a robot gets close to a goods shelf accordingto an advancing path, and then a guide channel arranged at the bottom of the goods shelf is used for correcting the advancing path to enable the robot to dive into the goods shelf, wherein the guidechannel is surrounded by guide rails which are arranged on the two sides of the advancing path; and a camera is used for identifying an identification label arranged at the bottom of the goods shelf so as to ensure that the position of a jacking rod of the robot and the position of a traction hole of the goods shelf correspond to each other, and then the jacking rod rises and extends into the traction hole. When the jacking rod of the robot corresponds to the position of the traction hole of the goods shelf, the camera is located under the identification label. According to the robot and goodsshelf alignment method and system, alignment deviation is corrected while the robot moves, and the time consumed by accurate alignment of the jacking rod and the traction hole is shortened, so that the alignment efficiency of the jacking rod and the traction hole is improved.

The invention discloses an energy-saving water wheel power generation equipment with pipeline butt joint sealing type self-radiation, which comprises a base body, a water wheel shaft blade, a liquid inlet pipe, a butt joint pipe, a mounting block and a connecting block. The inner end of the base body is connected by a bearing There are water wheel shaft blades, and the inner bolts at the outer end of the base body are equipped with fixed blocks, and the shaft ends of the water wheel shaft blades are fixedly connected with heat dissipation spiral fins, and the lower end of the base body is installed with a liquid inlet pipe, and the outer end of the liquid inlet pipe End nest installed with butt pipe. The pipeline is connected to the sealed self-radiating energy-saving water turbine power generation equipment. The heat generated during the operation of the drive end of the water wheel shaft blade will conduct heat conduction work stably along the copper heat conduction block that is in contact with it. At the same time, the built-in device body During the transmission process of the output shaft, it can stably drive the heat dissipation helical piece at the outer end to rotate in a circle, and then the output heat can be stably dissipated to prevent the transmission end from being overheated.

The invention discloses a combined PGL type low-voltage power distribution cabinet which comprises a power distribution cabinet body, a butt-joint plate A and a butt-joint plate B. The butt-joint plate A is fixed to the left side surface of the power distribution cabinet body, the butt-joint plate B is fixed to the right side surface of the power distribution cabinet body, and a butt-joint head is arranged on the left side surface of the butt-joint plate A and used for subsequent combined connection. A guide cover is arranged on the right side of the butt joint plate B, and a first air bag is arranged on the inner side of the guide cover. The combined PGL-type low-voltage power distribution cabinet is provided with the first air bag, the guide cover and the second air bag, when the power distribution cabinet main body is subjected to stress change or external collision, the first air bag can be pressed to deform, and the guide cover can slide to adaptively adjust the distance at the butt joint position, so that the power distribution cabinet is convenient to use. The gas in the first air bag is stored through the second air bag, automatic resetting can be achieved subsequently, and the acting force can be effectively buffered and absorbed at the butt joint position.

The invention relates to the related technical field of flow meters, in particular to a butt joint structure which comprises a butt joint pipe seat, a butt joint pipe, a connecting piece, a sealing piece and a limiting assembly, the limiting assembly is formed by combining a first connecting ring, a supporting spring and a second connecting ring, and a second limiting seat is arranged on the second connecting ring; a butt joint structure formed by combining a butt joint pipe seat, a butt joint pipe, a connecting piece, a sealing piece and a limiting assembly is arranged, butt joint grooves are formed in the two ends of the butt joint pipe, the sealing piece is arranged in the butt joint grooves, and the limiting assembly is arranged to be formed by combining a first connecting ring, a supporting spring and a second connecting ring; according to the butt joint structure, the second connecting ring is arranged, the second limiting seat is arranged on the second connecting ring, the first limiting seat is arranged at the port of the second limiting ring, and therefore the butt joint stability of the butt joint structure is effectively improved through the mutual clamping effect between the second limiting seat and the first limiting seat.

The invention discloses a hydraulic control one-way valve. The hydraulic control one-way valve comprises a valve rod and a control piston, wherein a through communication hole is arranged in the valverod in a penetrating mode; a butt joint hole matched with the communication hole is arranged in the end, facing the valve rod, of the control piston; the butt joint hole does not penetrate through the control piston; an orifice communicated with the butt joint hole is arranged in the peripheral wall of the control piston; the communication hole, the butt joint hole and the orifice are communicated with one another; a clamping mechanism is arranged between the opposite sides of the valve rod and the control piston; the clamping mechanism comprises a clamping block arranged at the end of the control piston and a clamping groove arranged in the end, facing the control piston, of the valve rod; a hollow control rod is arranged in the communication hole in a penetrating and matched mode; the control rod controls the clamping block to be clamped into or separated from the clamping groove, after the clamping end of the control piston is inserted into an inserting cavity of the valve rod, primary positioning sealing is achieved, after the control rod is inserted, the clamping end of the clamping block can be inserted into the clamping groove of the inserting cavity, rigid and firm fixingbetween the control piston and the valve rod is achieved, the installation is convenient, and the connection is stable.

The invention belongs to cable equipment, and particularly relates to a cable butt joint device. The device comprises a main body which is provided with a containing channel and a light source channel which are parallel to each other; a through groove is formed in the portion, corresponding to the middle of the containing channel, of the inner wall of the light source channel, and a light guide piece is arranged in the through groove. an observation mirror is correspondingly arranged on the side wall of the opposite side of the containing channel; two main fixing pieces are symmetrically arranged at the two ends in the containing channel, sliding channels parallel to the containing channel are formed in the main fixing pieces, the sliding channels of the two main fixing pieces are symmetrical and aligned with each other, and a sliding cylinder used for wrapping the outer side of an optical cable and capable of driving the optical cable to move is arranged in the sliding channel of each main fixing piece; the inner wall of each sliding channel is connected with the corresponding sliding cylinder in a matched mode, so that the sliding cylinder can move in the corresponding sliding channel along a sliding rail, and the sliding rail is parallel to the containing channel. The cable butt joint device can be effectively suitable for butt joint of single-core optical cables, particularly suitable for butt joint of butterfly-shaped single-core optical cables and suitable for butt joint of cables at the same time, and has general applicability.

The invention relates to the technical field of communication, and discloses an optical fiber connector assembly, which includes a hybrid adapter assembly and an optical fiber connector. The hybrid adapter includes a first adapter and a second adapter connected to each other, and the first adapter is connected with a first optical fiber connector. The second adapter is connected with the second optical fiber connector docked with the first optical fiber connector; the second adapter is provided with a connecting arm for fastening the second optical fiber connector, and is also provided with an auxiliary arm for the first optical fiber connector and the second optical fiber connector. Transition bridge for fiber optic connector docking. The present invention simplifies the structure of the optical fiber connector assembly, and after the matching mechanism of the second adapter and the second optical fiber connector is optimized, the connection and disconnection can be realized by plugging and unplugging. At the same time, a locking structure is provided to improve the butt joint stability of the optical fiber To ensure the stability and reliability of communication transmission.

The invention discloses a height-adjustable automatic supporting foot stool for an electric vehicle. The left end and the right end of the straight tooth bevel gear transmission mechanism are both coaxially connected with an electromagnetic lock transmission mechanism, wherein the electromagnetic lock transmission mechanism is coaxially sleeved with a first gear, and the first gear is connected with a second gear through a toothed belt; a central gear connecting sleeve of the second gear is coaxially and fixedly connected with a third gear; a horizontal rack meshed with the third gear is arranged on the upper section of the foot stool; the electromagnetic lock transmission mechanism is composed of a battery, an electric wire, a hollow transmission shaft, a first rotating shaft sleeve, two T-shaped electromagnets and a second rotating shaft sleeve which have the same central shaft. The straight tooth bevel gear transmission mechanism is driven by the motor to transmit power to the gear rack mechanism, and the foot stool is driven to ascend or descend. When the electromagnets on the left side and the right side are electrified simultaneously, the foot stools on the two sides can ascend or descend simultaneously; if the electromagnet on one side is powered off, the power transmission on the side is interrupted; therefore, independent control over ascending or descending of the left foot stool or the right foot stool can be achieved according to different parking road conditions.

The invention discloses a high-frequency valve circuit board positioning tool. The high-frequency valve circuit board positioning tool comprises a first positioning board and a second positioning board matched with the first positioning board for usage. The four corners of the first positioning board are each provided with a first bolt hole. A first square groove is formed in the center of the first positioning board. A second square groove is formed in the center of the first groove. A rectangular through hole is formed in the center of the second groove. A limiting groove is formed in the outer side of each short edge of the two short edges of the rectangular through hole. The four corners of the second positioning board are each provided with a second bolt hole. A rectangular protrusion is horizontally arranged in the middle of the second positioning board. A long slotted hole is formed in the rectangular protrusion. According to the high-frequency valve circuit board positioning tool, a circuit board is limited through the long slotted hole and the limiting grooves and screwed through bolts, and the effect that the circuit board forms a 90-degree right angle with a valve cage can be ensured, so that the non-perpendicularity problem of plug-ins of the circuit board is solved. Circuit contact is good through plug-in counter plugging detection. According to the positioning tool, the production efficiency is improved, the labor time is shortened, the using quality of the circuit board is improved and the butt-joint stability of the plug-ins of the circuit board is high.

The invention discloses vacuum molten metal taking equipment. The vacuum molten metal taking equipment comprises a displacement mechanism and a vacuum quantifying mechanism arranged on the displacement mechanism. The displacement mechanism is used for driving the vacuum quantifying mechanism to move in a three-dimensional space. The vacuum quantifying mechanism is used for taking molten liquid. A molten liquid pot is connected with a molten liquid taking position monitoring module, and the molten liquid taking position monitoring module can change the air pressure in the molten liquid pot and determine the molten liquid taking position by monitoring the air pressure in the molten liquid pot. The vacuum quantifying mechanism is connected with the displacement mechanism through a turnover mechanism, and the turnover mechanism can drive the vacuum quantifying mechanism to incline by a certain angle. A weighing sensor is arranged at the joint of the vacuum quantifying mechanism and the turnover mechanism. Due to the fact that the turnover mechanism can drive the vacuum quantifying mechanism to incline by a certain angle, the molten liquid pot can incline to be aligned with a die chamber of a die-casting machine in the molten liquid feeding process, the stability of butt joint of the molten liquid pot and the die chamber of the die-casting machine is improved, and leakage of molten liquid is avoided.

The invention provides an engine running-in test bench, a floating docking device and its adjustment assembly. The adjustment assembly includes a mounting base for fixed assembly with a mounting frame for installing a docking plate in a floating docking device and a mounting base for fixed connection with the docking plate. The connecting plate is provided with a positioning block extending in the up and down direction on the mounting base, the connecting plate has an assembly hole that is mated with the positioning block, and there is a gap between the inner hole wall of the assembly hole and the radial outer peripheral surface of the positioning block. There is a radial adjustment gap for the butt plate to carry the connecting plate to move and adjust in the radial direction of the assembly hole. Through the radial adjustment gap between the assembly hole of the connecting plate and the positioning block provided on the installation base, it can ensure that the corresponding butt plate can move in the radial direction during the docking process of the two butt plates, eliminating the axial guide structure due to self-processing The over-positioning caused by the precision can reduce the machining precision requirement of the whole floating docking device for the axial guide structure.