538 results about "Single hole" patented technology

The invention discloses a single-hole pressure adjusting method, device and equipment for a water curtain test of an underground water-sealed cave depot and a storage medium, and relates to the technical field of geological engineering.The method comprises the steps that firstly, a rock mass acoustic impedance spectrum is collected, intrinsic mode decomposition is carried out to extract geologic feature components, and the rock mass acoustic impedance spectrum is obtained; processing the target pressure value, the current pressure value and the geologic feature component by using a pressure-opening coupling model based on acoustic feature extraction, time sequence dynamic analysis and physical constraint decoding to obtain a reference valve opening; then, a water curtain hole valve is adjusted according to the reference valve opening degree, and the pressure change acceleration is monitored in real time; calculating an opening compensation increment and a damping attenuation coefficient based on the pressure change acceleration, and further generating a target valve opening; and finally, the valve is adjusted to the target opening degree, so that the water curtain hole reaches the target pressure value. According to the invention, high-precision self-adaptive adjustment of the pressure of a single water curtain hole can be realized in the water curtain test of the underground water-sealed cave depot.

The invention discloses a single-hole cluster test method, device and equipment for cave depot water curtain holes and a storage medium, and relates to the technical field of underground engineering and water sealing.The method comprises the steps that a test instruction input by a user is received; when the test instruction is a single-hole water injection fallback test instruction, sending a single-hole water injection fallback test control signal to a programmable logic controller of the target water curtain hole through an OPC server so as to perform a single-hole water injection fallback test and collect first test data; when the test instruction is a water curtain effectiveness test instruction, water curtain effectiveness test control signals are sent to programmable logic controllers of all the water curtain holes through the OPC server, so that water curtain effectiveness tests are carried out on all the water curtain holes, and second test data are collected; and obtaining a test result according to the first test data and the second test data. According to the application, remote data acquisition and test control of the water curtain hole cluster can be realized without entering the cave depot by field personnel, and meanwhile, the test efficiency and the data accuracy are improved.

The invention belongs to the technical field of gear machining equipment.The multi-hole gear machining punching equipment comprises a base, a telescopic rod is installed at the upper end of one side of the base, the outer end of the telescopic rod is sleeved with a sliding sleeve, the side end of the sliding sleeve is in threaded connection with a first positioning rod, a positioning table is arranged at the front end of the sliding sleeve, and a control box is installed at the top end of the telescopic rod; the bottom end of the front side of the control box is movably connected with a movable plate, a drill bit is installed at the side end of the movable plate, a cutting fluid spraying piece is arranged at the bottom end of the movable plate, a driving piece is installed at the top of the control box, and a circulating assembly is arranged in the base. Through the arrangement of the first placing assembly and the second placing assembly, personnel can complete single-hole or multi-hole punching operation of the gear by replacing the corresponding first placing assembly or the second placing assembly, meanwhile, cutting fluid in use can be purified, the working environment of use is guaranteed, the cutting fluid is recycled, and the use cost is saved.

The invention provides a 3D printing composite hollow structure generation method based on space curve alternate connection, and relates to the technical field of 3D printing, the method comprises the following steps: layering and discretizing a target 3D model along a printing direction, and intercepting sections layer by layer; according to the fact that the topological state of each layer of section is non-porous or single-hole, if the section is non-porous, two points are taken from each layer of section, and the two points divide a single contour into two parts to form a contour 1 and a contour 2; if the cross section is a single-hole cross section, extracting an external boundary as a contour 2 and an internal hole boundary as a contour 1 to form a nested structure; in a three-dimensional space, generating a surface 1 formed by F parameterized space curves fi for the contour 1 of all layers, and generating a surface 2 formed by G parameterized space curves gi for the contour 2; each space curve fi and the contour 1 of the nth layer intersect at a point Pn, i, and each space curve gi and the contour 2 of the nth layer intersect at a point Qn, i; k-L alternately connects the paths, and K lines and L lines are combined to generate differentiated textures.

The utility model relates to the technical field of piezoelectric pumps, in particular to a novel fluid conveying device, which is characterized in that a vibration component is matched with a pump seat groove to define a pump cavity, the pump cavity is communicated with the outside through a pump inlet and a pump outlet which are arranged on a pump seat, and a first one-way valve and a second one-way valve are respectively arranged at the pump inlet and the pump outlet. The circulation holes in the first one-way valve and the second one-way valve are of a porous structure, and the pumping capacity of the fluid conveying device can be improved by increasing the total length of the edges of the circulation holes compared with a single-hole design with the same area. The fluid conveying device adopts a single-pump-cavity design, so that the overall size of the pump body can be obviously reduced, the pump inlet and the pump outlet are formed in the pump base and are provided with the first one-way valve and the second one-way valve respectively, and effective pumping-in and pumping-out of fluid in the same pump cavity are achieved; the fluid path is simplified, meanwhile, the turning process of the fluid is reduced, and therefore energy loss in the fluid pumping process is reduced.

The invention discloses a one-time hole aligning operation type drilling, grouting and anchoring all-in-one machine and a construction method. The drilling, grouting and anchoring all-in-one machine comprises a propelling beam, a bolting and grouting device, a station switching device, a propelling device and a supply device. The bolting and grouting device comprises an anchoring agent spraying pipe. The station switching device comprises a station switching device I and a station switching device II, and the station switching device I can be switched between a drilling state and an anchor rod mounting state; the second station switching device can be switched between the first state that the drill rod hole and the surrounding rock preset hole are coaxial, the second state that the spray pipe hole and the surrounding rock preset hole are coaxial and the third state that the spray pipe hole and the surrounding rock preset hole are staggered simultaneously. The first station switching device and the second station switching device work cooperatively, it is ensured that drilling, anchoring agent injection and anchor rod installation share the same axis positioning reference all the time, seamless connection of procedures is achieved, and equipment displacement or repositioning is not needed in the whole process. The device has the advantages that the construction direction is adjusted at a time, the integrated operation of drilling, anchoring agent injection and anchor rod installation is completed in sequence, and the convenience during single-hole operation is improved.

The utility model relates to the technical field of rubber roller production, and discloses a mixing and conveying mechanism for rubber roller production and forming, which comprises a barrel shell, a sealing cover is arranged at the top of the barrel shell, the top of the sealing cover is communicated with a feed port, the top of the feed port is communicated with a plurality of blanking pipes, the top ends of the plurality of blanking pipes are communicated with blanking cylinders, and the blanking cylinders are communicated with the sealing cover. And the tops of the multiple discharging barrels are each provided with a barrel cover, the top of the feeding opening is fixedly connected with a second servo motor, the output end of the second servo motor penetrates through the top of the feeding opening and is fixedly connected with a rotating column, and the outer wall of the rotating column is fixedly connected with a quantitative plate. According to the quantitative discharging device, the second servo motor is started to drive the quantitative plate to rotate, then materials in different discharging pipes are quantitatively discharged through a single hole in the quantitative plate, the length of the extension rod can be freely adjusted according to the internal size of the inner barrel, and therefore the inner barrel can be better cleaned.

1. The name of this design product: single-hole basin faucet. 2. Purpose of this design product: This design product is used to control water flow switches and faucets of different sizes. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic drawing 2. 5. Designate Design 1 as the base design.

The invention discloses a surface mine blast hole explosive cartridge inserting device, which belongs to the technical field of blasting engineering construction equipment and comprises a traveling mechanism, a control mechanism and an explosive cartridge inserting mechanism. The cartridge inserting mechanism adopts a vertically arranged inserting pipe, can accommodate all cartridges required by single-hole blasting at one time, and is temporarily supported by an elastic check ring at the front end; after the pushing-in assembly drives the whole inserting pipe to be inserted downwards to the bottom of a hole, the abutting-in assembly fixes the explosive cartridge at the uppermost end, then the inserting pipe moves upwards, and the explosive cartridges are sequentially pushed out and filled in the hole. By means of the device, overall lowering and sequential filling of the cartridges are achieved, the technical problems that traditional manual single-cartridge filling is low in efficiency, the cartridges are prone to being damaged, and the arrangement sequence in holes is prone to being disordered are solved, and the charging efficiency, safety and reliability are remarkably improved.

The invention relates to a single-hole deep and shallow layered grouting device and method.The single-hole deep and shallow layered grouting device comprises a grouting pipe, an annular bag, a high-pressure hose, a grout non-return structure and bag fixing structures, the bag fixing structures are arranged on the outer side of the grouting pipe side by side, and the annular bag wraps the outer side of the grouting pipe; the side end of the annular bag is fixed to the grouting pipe through the two bag fixing structures, the grout non-return structure is connected to the side end of the high-pressure hose, and the other side end of the high-pressure hose penetrates through the bag fixing structures to communicate with the annular bag. The method preferably adopts a single-hole segmented grouting process to seal and fill the surrounding rock cracks of the roadway, indirectly increases the filling rate of the cracks, improves the overall stability of the roadway to the greatest extent, prolongs the service life of the roadway service, and is suitable for popularization and use.

The invention provides a gas blasting parameter prediction and hole arrangement design method based on a back propagation neural network. The method comprises the following steps: S1, obtaining physical and mechanical parameters of a rock mass in a blasting area; s2, carrying out a single-hole gas bursting test, and determining an optimal resistance line; s3, the step S1 and the step S2 are repeated in different sites, corresponding data are counted, and a database is established; s4, constructing and training a back propagation neural network, and predicting reasonable gas blasting parameters by inputting training data; and S5, optimizing hole arrangement design according to a network prediction result, and determining hole depth, hole pitch and hole pitch. According to the method, the blasting parameters are accurately predicted, the rock mass parameters and the site conditions are combined, the hole distribution parameters are reasonably designed, the rock breaking cost is remarkably reduced, the rock breaking efficiency is improved, and then the economic benefits of blasting operation are optimized.

The invention relates to the technical field of punching machining, in particular to wind power flange machining punching equipment which comprises a workbench, a mounting frame is fixedly mounted on the upper surface of the workbench, a hydraulic cylinder is arranged on one side of the mounting frame, a punching rod is fixedly mounted at the telescopic end of the hydraulic cylinder, and the end of the punching rod is sleeved with a punching head. The punching head and the punching rod are fixed through a pin shaft, a fixed opening is formed in the upper surface of the working table, movable openings which are symmetrically distributed are further formed in the upper surface of the working table, and the punching device further comprises a fixing unit which is arranged in the mounting frame. A hydraulic cylinder is accurately fixed through the fixing unit, a punching head can be flexibly replaced, a flange is stably fixed through a gear and clamping unit, punching is completed through driving of the hydraulic cylinder, waste is discharged through a fixing opening, and after a single hole is machined, the rotating unit drives the flange to rotate, and secondary punching is conducted after the positioning unit conducts calibration and positioning. And the punching precision and the machining efficiency are effectively improved.

The invention discloses a prospecting drilling method for a steeply inclined ore deposit, which comprises the following steps of: firstly, carrying out comprehensive geological survey, acquiring and analyzing geological structure, rock characteristics and ore body distribution, designing a drilling path, downwards drilling on the ground according to a design scheme to form a main drill hole, then forming branch holes at different positions of the main drill hole, and finally, carrying out drilling on the main drill hole. And after exploration of each branch hole is completed, hole sealing operation is carried out. The comb-shaped exploration branch hole structure can obtain geological information of the ore body from multiple angles and positions, compared with traditional single-hole exploration, the shape, thickness change, grade distribution and the like of the ore body can be known in detail, exploration blind areas are effectively reduced, exploration precision is improved, exploration of multiple positions can be completed in the one-time drilling process through the one-hole multi-branch design, and the exploration efficiency is improved. The exploration efficiency is greatly improved, and the exploration time and cost are reduced.

1. Name of the design product: Electrical connector assembly. 2. Use of the design product: This design product is used for electrical connection, and Component 2, Component 3, and Component 4 are used in cooperation with Component 1. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view of Combined State 1. 5. Other situations that need to be explained - Component description: This design product includes Component 1 (plug), Component 2 (single - hole socket), Component 3 (four - hole socket), and Component 4 (docking plug). Combined State 1 (plug + single - hole socket) is the situation when Component 2 is used in cooperation with Component 1, Combined State 2 (plug + four - hole socket) is the situation when Component 3 is used in cooperation with Component 1, and Combined State 3 (plug + docking plug) is the situation when Component 4 is used in cooperation with Component 1.

The utility model relates to a multi-channel single-hole puncture outfit with large-angle swing. The multi-channel single-hole puncture outfit comprises a sealing assembly and an imbedding assembly, the sealing assembly and the imbedding assembly are connected in a detachable mode. The sealing assembly comprises a plurality of instrument channels, a ventilation assembly and a sealing body; the instrument channel and the ventilation assembly are installed on the top face of the sealing body. In the multiple instrument channels, at least one instrument channel is a short instrument channel with the short length, and the remaining instrument channels are long instrument channels with the long length. The sealing device has the advantages that the long instrument channel is formed in the upper portion of the sealing body, the requirement for multi-directional swinging of instruments in the operation process is met, and the operation flexibility of the instruments in the operation process is improved.

The invention discloses a computer hard disk bracket machining device and method, and particularly relates to the technical field of computer hard disk bracket machining, the computer hard disk bracket machining device comprises a rack, a three-axis module is arranged in the rack, a mounting seat is arranged on the three-axis module, a clamping assembly is arranged on the mounting seat, and a drill bit assembly is arranged on the clamping assembly; the drill bit assembly comprises a drill bit base, a grinding sleeve, a drilling drill bit sleeve, a locking cover and a center shaft. The center shaft is installed in the middle of the top end of the drill bit seat, a drilling drill bit sleeve is inserted into the center shaft, and the ruler diameter of the drilling drill bit sleeve is gradually increased from bottom to top to form a multi-stage drilling structure. Polishing sleeves are arranged between the drill bit seats and the drilling drill bit sleeves and between the drill bit seats and the drilling drill bit sleeves, the polishing sleeves are inserted into the center shaft, the ruler diameters of the polishing sleeves are gradually increased from bottom to top, the polishing sleeves are matched with the corresponding drill bit seats / drilling drill bit sleeves in size, and a multi-stage polishing structure is formed. By means of the drill bit assembly integrating the multi-stage drilling drill bit sleeve and the grinding sleeve matched with the multi-stage drilling drill bit sleeve in size, the single-hole machining and grinding efficiency is greatly improved.

The single-hole thoracoscope convenient to fix comprises an adjusting support, two sets of fixing blocks are fixedly connected into the adjusting support, the ends, close to the center, of the fixing blocks are fixedly connected with adjusting telescopic rods, the outer side walls of the adjusting telescopic rods are sleeved with adjusting springs, and the ends, close to the center, of the adjusting telescopic rods are meshed with gears. Supporting telescopic rods are fixedly connected to the two sides of the gear, the centers of the supporting telescopic rods move in the adjusting support, holes are formed in the top ends of the supporting telescopic rods, connecting rods are arranged in the holes, reflectors are fixedly connected to the bottom ends of the connecting rods, and high-power cameras are fixedly connected to the bottom ends of the reflectors; the bottom end of the reflector is fixedly connected with a light source. According to the single-hole thoracoscope convenient to fix, when the single-hole thoracoscope convenient to fix is used, stretching and retracting of the telescopic rod are adjusted by adjusting cooperation of parts such as the telescopic rod, a gear is limited, angle adjustment of the supporting telescopic rod is achieved, and therefore the practicability of the single-hole thoracoscope convenient to fix is improved.

The invention discloses a die-casting die for automotive upholstery, and relates to the technical field of automotive upholstery casting. A die-casting die for automotive upholstery comprises a left die and a right die, a guide sleeve is mounted on the surface of the periphery of the top of the left die in an embedded mode, a pouring sleeve is arranged on one side face of the right die, a guide column corresponding to the guide sleeve is mounted on the other side face of the right die, and the die-casting die further comprises an air collection cavity formed in the outer portion of the guide sleeve and formed in the left die; the two groups of exhaust holes are annularly distributed in the side wall of the guide sleeve; the extrusion part and the two groups of exhaust holes are arranged in the guide sleeve, the guide column is inserted into the guide sleeve at the initial stage of die assembly, one end of the guide column is in contact with the extrusion part, and a step-by-step exhaust mode of initial single-hole exhaust and multi-hole cooperative exhaust after stroke increase is adopted, so that on one hand, reverse injection of external air is avoided; on the other hand, the exhaust rate is self-adaptively adjusted, and the risk of scorching of the inner wall of the guide sleeve is eliminated.

1. Name of the product in this design: Induction cooker core housing (single hole). 2. Purpose of this design product: used to cover the induction cooker core. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

1. The name of this design product: single-hole dual-channel dual-medium spinal endoscope. 2. Purpose of this product with design: This product with design is used for spinal surgery. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The rear view is symmetrical to the front view, so the rear view is omitted.

1. The name of the design product: filter core (different single hole ladder B). 2. The use of the design product: the design product is used in a device for filtering water quality; or used for placing in a fish tank to filter water quality, cultivate bacteria; or used for decoration inside the fish tank. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The application discloses a single-hole laparoscopic cholecystectomy method and relates to the technical field of laparoscopy application, S1: a patient is given general anesthesia by air insertion, a belly navel turning-over technique is used to establish an operation hole at the navel, and a single-port multi-channel puncture device is arranged; S2: a 30-degree straight laparoscope lens, a curved blood vessel clamp, a non-injury grabbing clamp, an ultrasonic knife, an electric coagulation hook and other conventional surgical instruments used in multi-hole laparoscopic cholecystectomy are used, a Cross Hand method is adopted to enter the surgical instrument, the bottom of a gallbladder is lifted by the non-injury grabbing clamp, and a gallbladder triangle is exposed. If the gallbladder triangle is shielded by liver Ⅲ or Ⅳb in this step, the visual field cannot be completely exposed, and a liver traction device needs to be used to assist in exposing the visual field of the gallbladder triangle. The application always keeps the same traction force on the liver, avoids the problem that the traction force of the liver is insufficient to cause unclear visual field with the cutting of the gallbladder being deepened, better exposes the surgical visual field of the gallbladder triangle, reduces the operation time and improves the operation safety.

The utility model relates to the technical field of electromagnetic valves, in particular to a two-position three-way electromagnetic valve. In the prior art, small holes need to be machined in the end socket, the machining difficulty is high, the machining efficiency is low, and the surface smoothness is difficult to control. According to the two-position three-way electromagnetic valve, a movable core iron is further arranged in a sleeve, a first valve port and a second valve port are formed in a double-hole pole, a fixed sealing block is arranged on the core iron, the first valve port and the second valve port in the double-hole pole are sealed by the sealing block, and the sealing block is communicated with an inlet connecting pipe; a small valve seat is mounted on the single-hole pole, a single-pole hole is formed in the small valve seat, and the single-pole hole is communicated with a first outlet connecting pipe through a second transition hole and a first transition hole; the coil C is powered off, the core iron is separated from the single-hole pole, the sealing block closes the first valve port, and the inlet connecting pipe is communicated with the first outlet pipe; the coil C is electrified, the core iron is attracted with the single-hole pole, and the inlet connecting pipe is communicated with the second outlet connecting pipe. According to the utility model, the structure is reasonable, the flow maximization and the minimum pressure difference in the valve cavity can be realized, the processing difficulty of the product is reduced, and the core iron acts reliably.

The application discloses a single-hole rotational flow urea nozzle with geometrically induced vortex line cavitation, which comprises a ball valve, a valve seat, a rotational flow sheet, a flow converging sheet, an outer shell and a hole plate, the valve seat is fixedly connected with the inner wall of the outer shell, an annular protrusion is arranged in the valve seat, a through hole is arranged in the middle of the annular protrusion and is communicated with both ends of the annular protrusion, a sealing ball is arranged at one end of the annular protrusion, and the sealing ball is fixed at one end of the ball valve; the ball valve is movably connected with the inner wall of the outer shell, and a gap for fluid flow is arranged between the ball valve and the outer shell; the other end of the annular protrusion is sequentially provided with the rotational flow sheet, the flow converging sheet and the hole plate, the rotational flow sheet is abutted against the annular protrusion, and a plurality of rotational flow channels which are inclined relative to the axis of the rotational flow sheet are arranged on the rotational flow sheet; and the flow converging sheet is provided with a flow converging channel. The rotational flow sheet provided with the rotational flow channels cooperates with the flow converging sheet, so that the spray cone angle is smaller and the spray is uniformly distributed in the circumferential direction under the working condition of determining the flow of the nozzle.

The invention relates to the field of composite materials, and particularly discloses a fiber spirally-arranged bionic porous composite material and a preparation method thereof.An elliptical hole structure and a spiral structure are combined to conduct improved design on connecting holes of the composite material, and a plurality of fiber layers with elliptical holes are periodically and spirally arranged to obtain circular through holes; compared with a traditional composite material single-hole structure, the stress concentration phenomenon can be remarkably reduced, and the stress concentration position of the structure can be dispersed; the laying layer angle difference of the adjacent fiber laying layers is utilized, so that the stress concentration position is effectively dispersed, and the maximum stress value is reduced; by utilizing the paving layer angle difference between the fiber layers in the same fiber paving layer group, the crack propagation is effectively prevented, and the arrival of the final damage of the structure is delayed, so that the fatigue life and the bearing capacity of the material are improved, the problems of single structure, low strength and early damage of the traditional composite material bolt hole structure are solved, the process is simple, and the production cost is low. And a new thought is provided for the development of a composite material bolt connection technology.

The utility model discloses a communicated seedling raising hole tray which comprises a base plate, a first boss integrally formed on the outer wall of the top of the base plate, a second boss integrally formed on the outer wall of one side of the base plate, a plurality of barrels integrally formed on the outer wall of one side of the second boss, and a plurality of blocks integrally formed on the outer wall of one side of the second boss. The plurality of blocks are integrally formed between every two adjacent cylinders, a plurality of hole basin grooves are formed in the outer wall of one side of the first boss, the hole basin grooves penetrate into the cylinders, a plurality of connecting grooves are formed in the outer wall of one side of the first boss, the connecting grooves penetrate into the blocks, and the plurality of connecting grooves are communicated with the hole basin grooves; a plurality of hole pot grooves can be connected together through the connecting grooves in the block body, the hole pot grooves can be communicated, water can flow to any single hole, it is guaranteed that the amount of water between the hole pot grooves is even during irrigation, synchronous growth of plants is promoted, and the overall strength of the hole pot is improved.

The invention discloses a nanopore dispersion strengthened metal material and a preparation method thereof, and belongs to the field of metal structure materials and porous materials. The nanopore dispersion strengthened metal material has the following characteristics that the metal comprises but is not limited to pure metal such as gold, platinum, silver, nickel, aluminum and copper and alloy materials of two or more of the pure metal; a single hole is a closed hole and is not communicated with the outside and other holes; the size between two farthest points on the surface of a single hole is larger than or equal to 1 nanometer and smaller than or equal to 1 micrometer; and the overall porosity is between 1% and 14%. The nanopore dispersion strengthened metal material disclosed by the invention can be prepared by a dealloying-compressing-sintering process. The nanopore dispersion strengthened metal material can achieve the purposes of weight reduction, strengthening and even plastic toughening at the same time without alloying, has very high specific strength, is a high-performance light structural material, and is expected to be applied to the engineering fields of aerospace and the like in the future.

According to the rapid positioning tool and method for the axis of the complex hole system, the inner clamping jaw and the outer clamping jaw of the single-hole center positioning tool are used for fixing the single-hole center positioning tool in a hole of the complex hole system, the inner clamping jaw is used for fixing a core rod, and when the core rod penetrates through the two single-hole center positioning tools fixed to two holes of the complex hole system, the core rod is fixed to the center of the complex hole system. At the moment, the center of the core rod and the axis of the hole system needing to be positioned are located on the same axis, and the axis of the hole system can be accurately positioned by correcting the center of the core rod. By means of the tool and the positioning method, the axis of the hole system can be accurately found at a time when the center line of the complex hole system is positioned, and the problems that a workpiece needs to be secondarily clamped on a machine tool or specific equipment during machining or calibration, multiple precise calibration devices need to be used for auxiliary positioning, and the positioning precision is difficult to effectively guarantee are solved.

The utility model discloses a replaceable probe structure, including shielding casing and insulating sleeve, shielding casing and insulating sleeve whole compression integrated, insulating sleeve is located in shielding casing is inclined, and probe is detachably installed in insulating sleeve through limiting device. Probe and limiting device cooperation detachably install in insulating sleeve, can according to test demand, quickly replace the damaged or different specification's probe, need not to make probe card again or carry out the dismounting positioning again, reduce maintenance cost and improve use flexibility, and simultaneously insulating sleeve can adopt the form of single -hole or double -hole, can be adapted to single -hole single -probe test or double -hole double -probe test.