23results about How to "Guaranteed normal expansion" patented technology

The invention provides a clamping tool for a fixed scroll of a compressor. The clamping tool comprises a lower base, a guide, a sliding block, an upper base, a spacer bush, a bolt and a handle. The guide is located between the lower base and the upper base, the spacer bush penetrates through the guide and is connected with the guide, the lower base and the upper base through bolts, the sliding block is arranged among the guide, the lower base and the upper base, the upper base is provided with a radial guide groove, the guide is provided with a circumferential guide groove, the lower base is provided with a sliding block telescopic window, and the handles are welded to the outer diameter of the guide and the outer diameter of the upper base respectively. The sliding block stretches out and draws back by opening and closing the handle, so that the fixed vortex of the compressor is clamped, and the clamping function is achieved. The guiding inner inclined guiding groove is matched with the sliding block guiding column, and the upper base straight guiding groove ensures that the sliding block stretches and retracts linearly. The tool solves the problem that the fixed vortex is not easy to take and install, is simple and convenient to operate, flexible in action, compact and light in structure, improves operation safety and efficiency, and is suitable for clamping the fixed vortex with the cylindrical outer diameter.

The invention discloses a 18650 lithium battery cell with a protection function and a protection method, comprising a cell shell, wherein a partition plate is fixedly connected to the inner wall of the cell shell, a negative electrode plate is inlaid on the inner wall of the cell shell, a battery pad is movably connected to the top surface of the negative electrode plate, a conductive plate is movably connected to the top surface of the battery pad, an insulating tube, an electrolyte paper roll and a cell rod are fixedly connected to the top surface of the conductive plate from the outside of the conductive plate to the axis in sequence, an insulating plastic cover is fixedly connected to the surface of the insulating tube, a sealing metal cover is fixedly connected to the top surface of the insulating tube, a puncture needle is movably connected to the surface of the sealing metal cover, and an air release valve is arranged on the inner wall of the sealing metal cover; the invention uses the puncture needle and the insulating bag to disconnect the expanded battery from the cell after the insulating liquid in the insulating tube is heated and expanded, and will not be used any more, thereby achieving the effect of reducing the safety hazard of the battery in the power bank.

The utility model discloses a sample grinding device for concrete bubble spacing measurement, which belongs to the technical field of concrete grinding and measurement and comprises a base, a lifting mechanism, a pressure detection device and a clamp mechanism, the lifting mechanism, the pressure detection device and the clamp mechanism are arranged on the base, and the pressure detection device feeds back pressure signals to a controller to control a rotating motor to rotate forwards or backwards. The screw drives the lifting frame to ascend and descend, pressure applied to a test piece by the pressure detection device is adjusted, the vertical section of the lifting frame is provided with a first matching part, the fixing frame is provided with a second matching part, and the first matching part is matched with the second matching part and used for stopping rotation of the lifting frame. It is guaranteed that the clamp mechanism does not generate horizontal deviation in the vertical lifting direction, and the test piece is ground within the controllable applied pressure. The device solves the problems that an existing device cannot detect and accurately adjust applied pressure in real time, and a test piece is prone to insufficient grinding or excessive abrasion, the grinding effect is improved, and the service life of the device is prolonged.

The invention relates to the field of expansion anchor cables, in particular to a novel expansion anchor cable which comprises a base, a grouting pipe used for grouting is arranged on the base, a sliding part capable of moving during grouting is further arranged on the base, and an external expansion part capable of expanding outwards along with movement of the sliding part is arranged on the outer portion of the base. The sliding part comprises a grouting outer cylinder which is fixedly connected to the base and communicates with the grouting pipe, a grouting inner cylinder which is arranged in the grouting outer cylinder in a sliding manner, and a connecting rod I which is fixedly connected to one side of the grouting inner cylinder; the method has the beneficial effects that expansion of the anchor cable is completely pushed by grout during grouting, other mechanical devices are not needed for assistance, a special construction technology is not needed either, and actual use is facilitated.

The invention belongs to the technical field of high-altitude operation, and particularly relates to a high-altitude operation machine and an anti-collision device thereof, the anti-collision device comprises a guide pipe, a collision pipe and a sealing plate, the collision pipe is movably arranged in the guide pipe in a penetrating mode, and the sealing plate detachably covers the upper end face of the guide pipe. The high-altitude operation machine comprises a driving mechanism and an operation mechanism, the operation mechanism is used for executing specific operation functions, and the driving mechanism is used for driving the operation mechanism to move. The guide pipe is fixedly installed on the operation mechanism, the upper end of the collision pipe is higher than the operation mechanism, and in the process that the driving mechanism drives the operation mechanism to move, if the operation mechanism is too close to an obstacle, the collision pipe collides with the obstacle, and therefore the driving mechanism is controlled to stop driving. In the long-term use process, the foreign matter can enter the guide pipe, the foreign matter in the guide pipe can be conveniently removed by disassembling the sealing plate, the foreign matter is prevented from being accumulated in the guide pipe, and therefore normal movable fit of the collision pipe and the guide pipe is guaranteed.

The invention belongs to the technical field of medical instruments, and particularly relates to a drug delivery balloon and a drug delivery device with the same. The balloon comprises an air bag body, the air bag body comprises a first wall and an air cavity, a pressure inlet assembly is installed in the air cavity and comprises an air inlet pipe and an air outlet pipe, and the air inlet pipe and the air outlet pipe are connected with a breather pipe; an air inlet and an air outlet are formed in the vent pipe and communicate with the air inlet pipe and the air outlet pipe correspondingly, a rotating plate is rotationally installed in the vent pipe, vent holes are formed in the rotating plate, an air hole plate is installed in the rotating plate in a sliding mode, an inclined groove is formed in the air hole plate, and an inserting block is installed on the vent pipe. By means of the mode that the air bag body expands to drive the vent holes in the air hole plate and the rotating plate to coincide, the air bag body intermittently shrinks in a small range in the expansion process, it is guaranteed that an inner film can expand to the maximum extent when the air bag body is in a normal pressure supply state, and the situation that the inner film is broken is greatly reduced.

The utility model relates to the technical field of plastic partition, disclose a plastic partition with buffer structure, including roof one, the one side of roof one is connected with roof two with sliding, the bottom fixed connection of roof one has buffer mechanism, the bottom fixed connection of buffer mechanism has bottom, the outer wall fixed connection of bottom has splicing mechanism, splicing mechanism includes fixed base, the outer wall rotation is connected with lock shell of fixed base, the one side rotation is connected with lock block of fixed base, the outer wall of lock shell has set up through -hole, the outer wall rotation is connected with two fixed blocks no. Two the inner wall fixed connection of fixed block no. Two all has the connecting column. In the utility model, when roof one and roof two are impacted, the spring is extruded downwards, the spring is influenced by the friction of rubber ring, the rebound speed is slowed down, the buffering effect is enhanced, the movable range of roof is limited by limit groove no. One and protruding block, and the loss of goods is reduced.

The utility model discloses a liquefied petroleum gas steel cylinder valve with an automatic adjusting function, which relates to the technical field of gas steel cylinder valves, comprises a valve, and is characterized in that an adjusting disc is arranged above the valve, a valve rod positioned in the valve is arranged on the lower end surface of the adjusting disc, and the valve rod is connected with the valve. The valve rod is sleeved with a sealing piece, the sealing piece comprises a first sealing ring, a composite ceramic layer, a second sealing ring and a sealing expansion block, the first sealing ring is arranged in the sealing piece, the composite ceramic layer is arranged in the first sealing ring, the second sealing ring is arranged in the composite ceramic layer, and the sealing expansion block is arranged in the second sealing ring. And a sealing expansion block is arranged in the second sealing ring. The sealing effect of the valve is enhanced, and the overall practicability is improved.

The utility model discloses a jack protection structure for a coal mine hydraulic support, relates to the technical field of jack protection, and adopts the technical scheme that the jack protection structure for the coal mine hydraulic support comprises a base, a bottom adjusting beam is mounted on the side surface of the base, a hinge block is mounted on the bottom adjusting beam, and a bottom adjusting jack is hinged to the base; a bottom adjusting jack is hinged to a bottom adjusting beam, a piston rod head of the bottom adjusting jack is hinged to a base, a cylinder bottom of the bottom adjusting jack is hinged to the bottom adjusting beam, an installation block is installed on the side face of the base, and the installation block is hinged to a pull-back sliding jack. And meanwhile, interference between the bottom adjusting beam and the pull-backward sliding jack pipeline can be avoided, so that stretching and retracting of the pull-backward sliding jack are ensured.

The utility model belongs to the technical field of greenhouses, and relates to a greenhouse capable of removing accumulated snow on the top of the greenhouse in a knocking mode, the greenhouse is in a closed state during knocking snow removal, and the greenhouse comprises a greenhouse main body and a knocking device; wherein a detonation framework is arranged in the greenhouse body in the longitudinal direction, a plurality of detonation points are arranged on the detonation framework at intervals, the detonation devices are installed and fixed to the detonation points, explosives in the detonation devices give out vibration brittle sound at the burning and explosion moment, and hot gas released at the burning and explosion moment acts on the greenhouse film. According to the greenhouse, the detonation device in the greenhouse is ignited, hot gas released by the detonation device at the burning explosion moment acts on the greenhouse film, the greenhouse film is instantly expanded and then is instantly restored to the original shape, accumulated snow on the greenhouse film is shaken off, the purpose of removing snow is achieved, and the greenhouse has the advantages that the snow removing effect is good, cost is low, and the service life of a greenhouse framework cannot be affected.

This utility model belongs to the technical field of gas generators, and specifically relates to a support structure for gas generators. The support structure for gas generators includes a mounting base, characterized in that: a front support flexible plate is fixed to the front end of the mounting base, a front casing is fixed to the top of the front support flexible plate, a main support flexible plate is fixed to the rear end of the mounting base, a main support column is fixed to the top of the main support flexible plate, a column support pin is installed on the main support column, the column support pin is connected to a tie rod ring, a tie rod is connected between the tie rod ring and the front casing, and the tie rod ring is connected to a load-bearing ring through a tie rod ring support pin. The beneficial effects of this utility model are: this support structure for gas generators, while ensuring effective support and fixation, can guarantee expansion in all directions without generating thermal stress. It can effectively transmit axial force and torque between the stator and rotor. Furthermore, it facilitates adjustment of the angle, gap, and preload during installation.

The invention relates to the technical field of hydraulic oil cylinders, and discloses an external guide structure of a hydraulic oil cylinder, which comprises a cylinder body and a telescopic rod mounted in the cylinder body and capable of stretching and retracting, and further comprises an adjusting sleeve mounted on the outer wall of the cylinder body and capable of sliding and adjusting on the outer wall of the cylinder body; the fixed sleeve is fixed to the outer wall of the telescopic rod, the sliding sleeve is installed on the outer wall of the cylinder body in a sliding mode, the adjusting sleeve is located between the sliding sleeve and the fixed sleeve, at least two guide rods are fixed between the sliding sleeve and the fixed sleeve, and the adjusting sleeve is provided with guide holes for the guide rods to penetrate through and guide in a sliding mode. The sliding guide effect on the telescopic rod can be achieved through sliding fit between the guide rod and the guide hole in the adjusting sleeve, the deflection force borne by the telescopic rod can be shared through the guide rod, the stress degree of the telescopic rod is reduced, the telescopic rod can be prevented from deviating, and the service life of the telescopic rod is prolonged. And meanwhile, the telescopic stroke of the telescopic rod is not influenced.

The utility model discloses a silicon carbide composite material high-temperature stability test furnace which is internally provided with a heat insulation tile layer for controlling the temperature, so that each part in the furnace is uniformly heated and cooled as much as possible, and meanwhile, the interference and influence of sudden rise and sudden drop of the temperature in the furnace on a sample are avoided; the to-be-tested silicon carbide composite material is clamped through the rotatable clamping mechanism, specifically, the tip end of the sample clamping rod abuts against the to-be-tested silicon carbide composite material, point contact is achieved, and the influence of uneven heating caused by the clamping effect is reduced to the minimum.

The utility model provides an electric telescopic pitching support arm which can realize lifting adjustment and pitching angle adjustment of a display in an office mode and a conference mode, and the support angle of the display is always fixed during pitching adjustment. The electric telescopic pitching support arm comprises a fixed base, a support block, a telescopic support arm main body, a pitching mechanism and a display fixing seat, the fixed base is fixed on a bearing beam or a stand column below the table top of the working table; a set inclination angle is formed between the telescopic support arm body and the horizontal plane, the fixed end of the telescopic support arm body penetrates through the table top of the workbench to be connected with the fixed base, and the telescopic end of the telescopic support arm body is connected with the displayer fixing base through the pitching mechanism. The display fixing seat is used for installing a display, and the pitching mechanism is used for adjusting the pitching angle of the display fixing seat.

The mechanical leg comprises a first leg mechanism, a second leg mechanism and a driving mechanism, the first leg mechanism is used for being rotationally connected to a robot body of the robot, and the first leg mechanism is provided with a first limiting piece; the second leg mechanism is connected to the first leg mechanism in a sliding mode, and the second leg mechanism is provided with a second limiting piece; the driving mechanism is used for driving the first leg mechanism and the second leg mechanism to integrally rotate relative to the machine body and driving the second leg mechanism to move relative to the first leg mechanism in the first direction, so that the mechanical leg is telescopic, and the first direction is the telescopic direction of the mechanical leg; the second limiting piece is used for abutting against the first limiting piece when the second leg mechanism slides to the limiting position relative to the first leg mechanism so as to limit sliding of the second leg mechanism. According to the technical scheme of the embodiment of the utility model, the advancing efficiency of the robot is improved, the stability of the robot is ensured, and parts of the robot are prevented from being damaged due to collision.

This invention discloses an adjustable endotracheal tube with inner and outer double tubes. The adjustable endotracheal tube includes an inner guide tube and an outer expansion tube arranged internally and externally. The inner guide tube includes an angle adjustment tube and an axial extension tube connected in axial sequence. The tail end of the axial extension tube is provided with an adjustment mechanism for adjusting the bending angle of the angle adjustment tube. The outer expansion tube includes an inner layer and an outer layer arranged internally and externally, which are connected to form a tubular air bladder. The tail end of the tubular air bladder is provided with an inflation / deflation port. In this invention, the outer expansion tube contracts within the outer wall of the inner guide tube to ensure passage through the airway. After passing through the airway, the expansion of the outer expansion tube ensures the expansion of the ventilation channel, improving ventilation efficiency. This invention uses the outer expansion tube as an air bladder, which easily conforms to the contours of the airway, achieving adaptive airway matching.

The utility model belongs to the field of valves, and particularly relates to a corrugated pipe ball valve which comprises a valve body, a valve ball and a valve cover, a containing cavity is formed in the valve body, the valve ball and the valve cover are located in the containing cavity, a communication cavity is formed in the middle of the valve ball, the valve body is provided with an inlet, an outlet and an installation opening which are connected with the containing cavity, and the valve cover is arranged outside the installation opening. And the valve cover is connected with the mounting port in a sealing manner. Through the combination of the corrugated pipe and the scraping part, in the opening and closing process of the ball valve, the scraping part is used for cleaning the valve ball, the smoothness of the outer surface of the ball valve is kept, and it is ensured that the ball valve can be normally conducted under the working condition with dust, and stable sealing can be achieved when flow is cut off. The combination of the connecting cylinder, the corrugated pipe and the valve seat body is used, on the premise that normal conduction and closure are guaranteed, dust accumulation at the position of the corrugated pipe can be reduced, normal stretching and retracting of the corrugated pipe are guaranteed, under pre-tightening of the elastic part, the scraping part is always kept in close contact with the valve ball, and the surface of the valve ball is always smooth and clean in the long-time working process.

The utility model discloses classified storage equipment for logic board testing, which relates to the technical field of logic board processing and comprises storage cabinet main bodies and a connecting box, the connecting box is positioned on the inner sides of the two storage cabinet main bodies, loading cabinets are uniformly arranged on the storage cabinet main bodies, and bottom bearing strips are uniformly arranged at the bottoms of the loading cabinets. An arc-shaped plate is arranged on the inner side of the loading cabinet and located above the bottom bearing strip, a partition plate is fixedly arranged in the middle of the loading cabinet, and a connecting rod is arranged on the arc-shaped plate. Bottom bearing strips evenly arranged at the bottom of the loading cabinet can bear the logic board under the condition that air circulation in the whole storage cabinet body is guaranteed, and an arc-shaped plate arranged on the inner side of the loading cabinet and located above the bottom bearing strips is used for guiding air fed into the storage cabinet body by a dehumidifier, so that in the flowing process of the air, the air flow in the storage cabinet body is more uniform. And the logic boards in each loading cabinet can be blown by the air flow, so that the dryness of the logic boards is ensured, and the phenomenon of moisture is avoided.

The utility model provides a kind of telescopic guard board, it is related to guard rail board technical field to solve the problem of poor deformation ability of protective plate in prior art, the telescopic guard board includes first connecting plate, second connecting plate and telescopic plate, the first connecting plate and the second connecting plate are respectively connected in the left and right sides of the telescopic plate and are respectively connected with the crash barrier wall of both ends, the telescopic plate can be telescopic along transverse direction and adjust the distance between the first connecting plate and the second connecting plate.The telescopic guard board of the utility model has good deformation ability, guarantees bridge crash barrier wall beautiful telescopic, so that it can be adapted to curve, slope and the like, applied to mountainous road, bridge and other complex terrain.

The utility model belongs to the technical field of display devices, and particularly relates to an innovation and entrepreneurship project display device, a display screen assembly and a telescopic rod assembly enable the display device to display complex projects, the display device can be conveniently stored when not in use, and a pull rod and rollers enable the display device to be conveniently moved and carried when in use. Through cooperation of the box cover and the box body, the display mechanism can be isolated from the outside of the box body when being stored, collision is avoided, meanwhile, the display mechanism can be prevented from being contaminated by dust, use convenience is improved, the service life is prolonged, the screen can be completely folded and overlapped when the screen is folded through the connecting piece, and therefore the storage space in the box body is saved, and use is convenient. Meanwhile, the screens which are completely folded and overlapped can be prevented from vibrating in the transportation process, damage is avoided, the narrow-frame screens can enable the multi-screen splicing effect to be smoother and more natural, and the display effect of the display device is improved.

The utility model relates to the technical field of tempered glass feeding, and discloses a novel feeding device for tempered glass, which comprises a conveying seat, a plurality of groups of transmission rubber rollers distributed at equal intervals are rotatably mounted on one side of the inner wall of the conveying seat, and every two adjacent groups of transmission rubber rollers are in transmission connection through a transmission toothed belt. The driving motor drives the adjusting seat in the feeding mechanism to rotate, so that the adjusting seat synchronously drives the connecting frame, the limiting cylinder, the positioning pipes and the electric push rod to rotate, the suction cups communicated with the four groups of positioning pipes are attached to one side of tempered glass, and then the negative pressure pump communicated with the positioning pipes is driven; when a motor drives an adjusting seat to reset, an electric push rod is firstly driven to push a push plate, so that the push plate pushes four groups of positioning pipes to slowly move upwards, and the tempered glass positioned by the four groups of positioning pipes is slowly away from the ground before feeding; and the tempered glass is prevented from being broken due to mutual friction with the ground during rotation.

The utility model discloses a boiler bottom water seal assembly, and relates to the technical field of boiler water seal tank optimization. The water seal device comprises a water seal inserting plate arranged on a water cooling wall tube of the dry bottom hopper, the water seal inserting plate extends into the liquid level of a water seal tank from the top surface of the water seal tank, a dust blocking mechanism is installed on the inner side of the water seal inserting plate, the dust blocking mechanism is provided with a flexible steel plate, the bottom side of the flexible steel plate abuts against the top surface of the inner side of the water seal tank, and the bottom side of the flexible steel plate abuts against the water cooling wall tube of the dry bottom hopper. The width of the flexible steel plate is not less than that of the inner side of the water seal tank; the problem that dust accumulation in the water seal tank is aggravated due to the fact that steam generated by the water seal tank adsorbs fine dust is solved.