31results about How to "Reduce footprint" patented technology

The utility model discloses a multi-cavity all-in-one machine which comprises a machine frame body, a plurality of independent cavities are formed in the machine frame body, a corresponding heating assembly is arranged in each independent cavity, and each heating assembly is connected with a corresponding control assembly. The rack body is movably connected with door cover assemblies corresponding to the independent cavities. The utility model provides a multi-cavity all-in-one machine, which can cook various foods in the same time, improves the efficiency and diversity of products, does not need a user to wait for a long time or cook the foods by using too many cooking electric appliances, can ensure that the phenomenon of tainting by odor is avoided, and improves the flexibility of cooking.

The invention discloses a limited micro-space multifunctional piling machine, and belongs to the technical field of piling machines. The limited micro-space multifunctional pile machine comprises a main machine assembly, a drilling rig assembly, a power head assembly, a multi-channel telescopic drill rod and a process drill bit, and the power head assembly comprises a box body, a telescopic driving hydraulic motor, a drill rod driving hydraulic motor, a multi-channel flow divider, a drill rod rotating joint and a screw driving joint, and the telescopic driving hydraulic motor, the drill rod driving hydraulic motor, the multi-channel flow divider, the drill rod rotating joint and the screw driving joint are installed on the box body. The multi-channel telescopic drill rod is controlled to rotate and stretch through the dual-drive power head, so that the overall height of the pile machine can be effectively reduced, low-clearance pile foundation construction can be achieved, multiple fluid channels are constructed in the multi-channel telescopic drill rod, the telescopic drill rod can be matched with drill bits of various technologies, and the construction efficiency is improved. Various pile foundation construction technologies are completed on one pile machine, and the blank of a multifunctional pile machine is filled. In addition, due to the design that the multi-channel shunting power head is matched with the multi-channel telescopic drill rod, rod connecting operation can be reduced or not needed, construction complexity is reduced, and construction efficiency is improved.

A combined switch with a large current protection function comprises at least two-pole frame type switches and at least one-pole fuses, and the at least two-pole frame type switches and the at least one-pole fuses are combined into a whole to be installed in a direct-current power system to control on-off of the direct-current power system. According to the combined switch, the frame-type switch and the fuse are combined into a whole, the size of the whole occupied space of the switch is reduced, the application range of the switch is expanded, meanwhile, the use amount of connecting copper bars between the frame-type switch and the fuse is reduced, the product cost is saved, fusing indication of the fuse can be integrated to a secondary terminal of the frame-type switch, and the service life of the switch is prolonged. The wiring is convenient, and the wiring difficulty is reduced; on the other hand, the frame-type switch and the fuse are combined into a whole, the current protection matching degree is improved, large electric quantity overload protection of the direct-current power system is achieved, additional model selection and construction are not needed, the fuse can be disassembled, assembled and maintained from the front face, and the maintenance difficulty is reduced.

The invention relates to a multi-probe near-field electromagnetic characteristic test system and method based on an ultra-wide-band plane wave synthesis method, and the system comprises a test darkroom, a plurality of ultra-wide-band plane wave synthesizers, one or more supports, and a tested object. The plurality of ultra wide band plane wave synthesizers are arranged on one or more brackets, and the tested object is arranged in one bracket or among the plurality of brackets; at least one of the plurality of ultra-wideband plane wave synthesizers serves as a transmitting antenna, a transmitting plane wave probe of the ultra-wideband plane wave synthesizers is used for transmitting uniform plane waves to a measured object, the rest ultra-wideband plane wave synthesizers serve as receiving antennas, and receiving plane wave probes of the ultra-wideband plane wave synthesizers are used for receiving the uniform plane waves reflected by the measured object. Therefore, the double-station or multi-station electromagnetic characteristic of the tested object can be tested. According to the invention, measurement of various electromagnetic characteristics such as a target double-station / multi-station radar scattering cross section and an antenna radiation pattern can be realized.

This utility model belongs to the field of outdoor tent technology, and relates to an outdoor tent with a folding stool. It includes a main frame assembly, a curtain assembly, and a folding stool assembly. The main frame assembly includes two sets of left support rod assemblies and right support rod assemblies. The left support rod assembly includes a first left support rod, a second left support rod, and a third left support rod connected sequentially to the ground. The folding stool assembly includes a stool panel hinged between the two first left support rods and the two first right support rods. A stool support tube is fixedly installed under the stool panel. The stool support tube is connected to the frame stool legs via a folding assembly. The folding assembly includes a first folding piece and a second folding piece rotatably connected by a pivot. The second folding piece is hinged to the frame stool legs, and the first folding piece is hinged to the stool support tube. This utility model relates to an outdoor tent with a folding stool that occupies a small area, covers a large area, and includes a folding stool for users to rest, making it more convenient and helping users avoid inclement weather.

The paper box conveying device comprises an installation frame, a positioning assembly and a conveying assembly, the positioning assembly and the conveying assembly are installed on the installation frame, the positioning assembly comprises a positioning guide rail, the conveying assembly comprises a box pushing air cylinder and a clamping conveying mechanism, and the box pushing air cylinder and the clamping conveying mechanism directly face the positioning guide rail and are close to the head end and the middle in the extending direction respectively. The clamping conveying mechanism comprises a rotating motor, a main transmission shaft and a main driven shaft located over the main transmission shaft, an output shaft of the rotating motor is in transmission connection with the main transmission shaft through a transmission piece, the main transmission shaft and the main driven shaft are sleeved with first rollers in an up-down corresponding mode, and gaps between the first rollers distributed in an up-down corresponding mode right face the positioning guide rail. The paper box pushed by the box pushing air cylinder is conveyed in a rotary clamping mode. The paper box conveying device can effectively improve the paper box conveying efficiency and increase the conveying distance, and is low in cost, wide in application range and suitable for conveying paper boxes of different length and width specifications.

The present invention relates to the field of heat recovery technology, and more specifically to a heat recovery system and device based on small-diameter dual-function; comprising a heat-insulating medium storage tank, a plurality of heat exchange blasting spaces, each heat exchange blasting space having its own tube-fin heat exchanger; the diameter of the heat exchange tube in the tube-fin heat exchanger is ≤4mm; each tube-fin heat exchanger has its own liquid inlet valve and liquid outlet valve, a liquid inlet pump is arranged at the output end of the medium storage tank, and the liquid inlet pump is connected to each liquid inlet valve by a branch pipeline; the heat exchange area / outer volume of each tube-fin heat exchanger is ≥280m 2 / m 3 The present invention connects a plurality of heat exchange tubes in parallel, abandoning the series connection of the traditional fin heat exchanger, so that when one of the heat exchange tubes is blocked, the fluid can flow along the other unblocked heat exchange tubes, so that the tube-fin heat exchanger can operate normally.

The present invention relates to the field of robot lifting technology, and specifically to a side-mounted lifting mechanism for a collaborative robot, comprising a box body, a bottom plate, a top cover plate, a middle transition cover plate, an upper transition cover plate, a lifting unit and a load installation unit. The installation position of the collaborative robot is changed to be side-mounted, and the collaborative robot is lifted and lowered by a vertical lifting method, which solves the problem that traditional robotic arms are difficult to operate in a small space due to their large size. At the same time, a guide structure and two sets of slide rail sub-structures are provided, which solves the problem that the traditional robotic arm lifting structure has a slow response speed and poor stability, resulting in reduced working efficiency of the collaborative robot.

A mini CNC machine tool for panel automatic loading and unloading processing includes a frame, a material box device, a positioning fixture, a dual-spindle machine head and a loading and unloading manipulator. The invention has a compact structure; fully utilizes the internal space of the machine tool, reduces the size of the machine tool through reasonable layout and structural design; can effectively reduce the stroke of the loading and unloading manipulator during loading and unloading, improve processing efficiency; can effectively reduce costs, and is more economical.

The invention relates to the technical field of heat energy recovery, in particular to a double-function heat energy recovery system and device based on a small pipe diameter. Comprising a heat preservation medium storage tank and a plurality of heat exchange blast spaces, and each heat exchange blast space is internally provided with a tube fin type heat exchanger; the diameter of a heat exchange tube in the finned tube heat exchanger is less than or equal to 4mm; each finned tube heat exchanger is provided with a liquid inlet valve and a liquid outlet valve, a liquid inlet pump is arranged at the output end of the medium storage tank, and the liquid inlet pump is connected with each liquid inlet valve through a branch pipeline; the heat exchange area / appearance volume of each finned tube heat exchanger is greater than or equal to 280m < 2 > / m < 3 >; according to the tube fin type heat exchanger, the multiple heat exchange tubes are connected in parallel, the mode that a traditional fin type heat exchanger is connected in series is abandoned, under the condition that one heat exchange tube is blocked, fluid can circulate along the other unblocked heat exchange tubes, and the tube fin type heat exchanger can operate normally.

The utility model relates to the field of heat exchangers, in particular to an open-loop multi-stage circulating cooling and rewarming heat exchanger assembly. The utility model provides an open-loop multi-stage circulating cooling and rewarming heat exchanger assembly which is capable of reducing the occupied area, tidy in appearance, reasonable in structure, high in operability, energy-saving, emission-reducing, long in service life and capable of ensuring stable operation of system temperature. An open-loop multi-stage circulating cooling and rewarming heat exchanger assembly comprises a shell, a fixed access cover and the like, and the upper side of the shell is connected with the fixed access cover in a clamped mode. The shell is made of all stainless steel materials, the first-stage cooler is used for primarily cooling incoming air, the second-stage cooler is used for further cooling the incoming air, and then the incoming air enters the third-stage cooler to be completely cooled, so that the purposes that the occupied area can be reduced, the appearance is neat, the structure is reasonable, operability is high, energy is saved, emission is reduced, and the service life is prolonged are achieved. And stable operation of the system temperature and long service life are ensured.

The utility model relates to the technical field of charging piles, in particular to a power distribution assembly for a direct-current charging pile, which comprises a bracket main body, a conversion module in the direct-current charging pile and a direct-current high-voltage contactor, each group of direct-current high-voltage contactors consists of a first contactor connected to the positive pole output end of the conversion module and a second contactor connected to the negative pole output end, and the first contactor and the second contactor are arranged on the first mounting surface of the bracket main body and are correspondingly connected in series to form an annular loop; the annular loop is provided with a plurality of direct-current outlet copper bars, each direct-current outlet copper bar is provided with a first end connected with the annular loop and a second end extending to the second installation face of the support body, and the second end of each direct-current outlet copper bar forms a copper bar wiring area used for wiring of the charging terminal on the second installation face. According to the utility model, the space in the thickness direction of the cabinet is fully utilized, so that the power distribution assembly can realize more compact layout in a limited size.

The invention discloses a miniaturized telephoto camera electric holder which comprises a horizontal direction adjusting part and a pitching direction adjusting part. The horizontal direction adjusting part comprises an inner cylinder, an outer cylinder, a horizontal direction motor, a gear and a gear ring, the lower end of the inner cylinder is closed, the upper end of the inner cylinder is open, the two ends of the outer cylinder are open, the outer cylinder sleeves the inner cylinder, an inner cavity of the inner cylinder is used for vertically placing the telephoto camera, the horizontal direction motor is arranged on the outer wall of the inner cylinder, and the gear ring is arranged on a rotating shaft of the horizontal direction motor. A rotating shaft of the horizontal direction motor is vertical, the outer circumferential surface of the gear ring is fixed on the inner circumferential wall of the outer cylinder, and the gear is meshed with the gear ring; the pitching azimuth adjusting part comprises a support, a pitching azimuth motor and a reflecting mirror, the support is arranged at the top of the inner cylinder, the pitching azimuth motor is arranged on the support, the reflecting mirror is arranged on a rotating shaft of the pitching azimuth motor, the rotating shaft of the pitching azimuth motor is horizontal, and the reflecting mirror stretches across the upper end opening of the inner cylinder and is used for reflecting light to the upper end opening of the inner cylinder. The electric holder is suitable for being installed in a narrow space.

The utility model discloses a kind of rotating devices, belong to X-ray automatic detection equipment technical field, specifically related to a kind of high-precision X-ray source intelligent rotating device, comprising: driving motor, installation bottom plate, hollow rotating platform and X-ray source assembly;The driving motor is installed in the rear side of the installation bottom plate, the hollow rotating platform is installed in the front side of the installation bottom plate, and the X-ray source assembly is installed on the hollow rotating platform;Arranged on the installation bottom plate is in-place inductor and limit block;The X-ray source assembly is provided with the inductive sheet matched with the in-place inductor;The utility model uses hollow rotating platform as core rotating element, and is directly driven by motor, and this design reduces the generation of cumulative error from the root, ensures the high-precision rotating performance;And simplify overall structure, under the premise of guaranteeing function, reduce volume, weight and cost, show significant technical advantage.

The utility model relates to the technical field of batteries, in particular to a connecting piece, a circuit board and a battery. The connecting piece comprises a tab welding part, a connecting part and a plate welding part. The tab welding part comprises a first welding section, a bending section and a second welding section which are connected in sequence, the second welding section is connected with the plate welding part through a connecting part, the first welding section and the second welding section are folded through the bending section so that the tab can be clamped between the first welding section and the second welding section, and the second welding section is located on one side in the width direction of the circuit board; the board welding part is used for being welded to one side of the circuit board in the thickness direction. According to the connecting piece provided by the utility model, the size of the connecting piece in the height direction can be reduced as much as possible under the condition that the connecting strength is ensured, so that a space is provided for a larger battery cell to enlarge the capacity density of the battery, the ultimate miniaturization of the battery can be realized, and the application range of the battery is expanded.

The invention relates to an intelligent multi-channel five-axis vertical machining center which comprises a base and a stand column, and the base is provided with an X-axis moving assembly, two parallel independent machining channels and a double-screw chip removal device. Each machining channel comprises a saddle, a Y-axis moving assembly, a workbench, a spindle box and a machining tool, and each saddle is arranged on the corresponding X-axis moving assembly and can move left and right along the corresponding X-axis moving assembly; each workbench is arranged on a Y-axis moving assembly on the saddle and can move back and forth along the Y-axis moving assembly; according to the machining center, independent double-channel control is adopted, two products can be machined at the same time, meanwhile, the size of the vertical machining center is reduced in the mode that the X-axis guide rail and the working space are shared, the intelligent anti-interference function is added for the situation that the X-axis guide rail and the working space are shared, and the machining efficiency is improved. And each channel of the intelligent multi-channel five-axis vertical machining center can work normally and does not interfere with each other.

The invention relates to a large steel pipe gallery moving and jacking device and a construction method, the large steel pipe gallery moving and jacking device comprises a steel pipe gallery jacking assembly, the steel pipe gallery jacking assembly comprises a lower supporting seat and a steel pipe gallery supporting frame located above the lower supporting seat, and a jacking mechanism for lifting the steel pipe gallery supporting frame to a set height is arranged on the lower supporting seat; and the jacking assembly transport vehicle comprises a self-propelled module transport vehicle which is located at the bottom of the steel pipe gallery jacking assembly and used for synchronously moving the steel pipe gallery jacking assembly and the steel pipe gallery to a set station, and the lower supporting base is fixed to the top of the self-propelled module transport vehicle. The self-propelled module transport vehicle is used for transporting the steel pipe gallery jacking assembly and the steel pipe gallery to the to-be-installed position of the steel pipe gallery from a steel pipe gallery prefabricating yard. After the steel pipe gallery is transported to the to-be-installed position of the steel pipe gallery, the steel pipe gallery jacking assembly jacks the steel pipe gallery to the position above the steel pipe gallery concrete stand columns and enables the steel pipe gallery to be located on the steel pipe gallery concrete stand columns, and transportation and installation of the steel pipe gallery are completed.

This application discloses a filter and power device, belonging to the field of power electronics technology. The filter includes: a terminal block with a first groove on one side and a second and third groove connected to each other on the side opposite to the first groove; a first magnetic ring placed in the first groove; a second magnetic ring placed in the second groove; and a filter assembly, at least partially placed in the third groove, with the filter assembly located between the first and second magnetic rings. Thus, this application achieves a high degree of integration of the first magnetic ring, the second magnetic ring, and the filter assembly through the terminal block, simplifying the filter structure, reducing the space occupied by the filter, making the filter layout more compact, and the arrangement between the various structures more reasonable. It fully utilizes the internal space of the terminal block, achieving a tight connection between the various structures within a limited space, effectively reducing the overall size of the filter and the overall volume occupied by the filter.

The utility model relates to the technical field of rehabilitation apparatus, and disclose a kind of storable medical rehabilitation device, including first support frame, the side fixed connection of first support frame has first folding board, the side of first folding board is equipped with recycling groove, the inside sliding connection of recycling groove has second folding board, the side fixed connection of second folding board has second support frame, first support frame and second support frame bottom are all installed with support leg, the top fixed connection of first folding board has two square blocks, the top of square block is equipped with special-shaped through groove, the inside sliding connection of special-shaped through groove has cylindrical rod.This storable medical rehabilitation device can realize the quick folding function of walking aid in the medical rehabilitation device, thereby facilitating storage and reducing the occupied space volume. Such improvement not only improves the portability of the device, but also greatly enhances its practicability in different environments.

The utility model discloses a transverse flow muddy water cooling tower with omega-shaped rod type packing, which belongs to the technical field of cooling towers and comprises packing supports positioned on two sides in a tower body, and omega-shaped rod type packing is hung on the packing supports. The omega-shaped rod type filler is strip-shaped, and the cross section of the omega-shaped rod type filler is C-shaped or omega-shaped; the omega-shaped rod type fillers are distributed in an array mode in the longitudinal direction and the vertical direction, each omega-shaped rod type filler is transversely installed, and the concave face of each omega-shaped rod type filler faces downwards, so that the omega-shaped rod type fillers are parallel to the airflow direction in the length direction. Compared with a sewage tower with rod type packing perpendicular to the airflow direction, the omega-shaped rod type packing is arranged more tightly, more packing is arranged in the same space, the thermal performance of the cooling tower is facilitated, and the occupied area of the cooling tower is more saved under the same cooling condition.

The utility model relates to the technical field of suspended ceiling installation, in particular to an adjustable assembly type aluminum plate suspended ceiling which comprises a keel assembly, the keel assembly comprises two main keels and two auxiliary keels, one ends of the two main keels are hinged, and the two auxiliary keels are rotatably connected to the other ends of the two main keels respectively. A plurality of buckles are connected to the main keel and the auxiliary keel of each keel assembly in a clamped mode, hanging rods are arranged on the buckles, and an installation framework is arranged between the corresponding hanging rods on the two keel assemblies. By arranging the main keels, the auxiliary keels and the extending keels, the size of the keel assembly in the length direction and the width direction can be adjusted, the hanging height of the aluminum plate ceiling relative to the keel assembly is controlled by adjusting the installation position of the hanging rod in the screw cylinder, the adjustment requirements of the aluminum plate ceiling on the installation plane and space are met, and the aluminum plate ceiling is suitable for construction in different spaces; and various installation requirements of the aluminum plate suspended ceiling are met, and the installation flexibility and the installation efficiency are improved.

The embodiment of the present disclosure relates to the field of semiconductor, and provides a semiconductor structure and a manufacturing method thereof, the semiconductor structure comprising: a substrate; a first oxide semiconductor layer perpendicular to a surface of the substrate, comprising a first channel region and first source-drain doped regions located on opposite sides of the first channel region along an extension direction of the first oxide semiconductor layer; first gates located on at least opposite sides of the first oxide semiconductor layer along any direction parallel to the surface of the substrate, the first gates located on opposite sides of the first oxide semiconductor layer being gate regions, and the first gates further comprising a connecting region connecting the gate regions; and first source-drain electrodes comprising first source electrodes and first drain electrodes located on opposite sides of the first oxide semiconductor layer, the first source-drain electrodes being in contact with the first source-drain doped regions; wherein the first oxide semiconductor layer, the first gates and the first source-drain electrodes constitute a first transistor. At least the performance of the semiconductor structure can be improved while reducing the size of the semiconductor structure.

The utility model relates to a transmission device for reversing, a phase shifter and a base station antenna, and the transmission device for reversing comprises a driving shaft which is configured to provide a driving force for the transmission device; the first arc-shaped gear is connected with the driving shaft; the second arc-shaped gear is in meshed connection with the first arc-shaped gear; and the first driven shaft is connected with the second arc-shaped gear. By means of the mode, the two arc-shaped gears which are in transmission with each other of the transmission device can be meshed within a large angle range, so that the structure of the transmission device can be flattened, and the height of the transmission device can be reduced. Therefore, the space volume occupied by the transmission device provided by the utility model is reduced.

The utility model discloses a power bank with a magnetic support, which relates to the field of power banks and comprises a rear cover, a plurality of screws and an auxiliary body mounted at the bottom of the rear cover. The threading linkage piece is mounted on one side of the bottom of the rear cover; the main body is arranged on the outer side of the auxiliary body; the included angle between the auxiliary body and the main body can be manually adjusted, and the rotating included angle range of the auxiliary body and the main body is 0-90 degrees; according to the power bank with the magnetic attraction support, when the bearing table rotates along the axis of the rotating shaft linkage piece till the included angle between the bearing table and the rear cover is 90 degrees, the electronic equipment is supported while being charged, use of the electronic equipment during charging is facilitated, the bearing table rotates along the axis of the rotating shaft linkage piece till the bearing table coincides with the rear cover, and the electronic equipment can be conveniently charged. And the bearing table is completely immersed into the groove formed in the bottom of the rear cover, so that the space volume occupied by the device is reduced, and the device is convenient to carry.

The invention provides a miniaturized environment-friendly gas ring main unit which comprises a closed box body based on dry air insulation, the closed box body is provided with an emergency interface, and the internal space of the closed box body is divided into a closed gas box, a mechanism chamber, a cable chamber, a pressure relief chamber, a mounting compartment and an instrument chamber according to functions and purposes; wherein a three-fracture combined switch is designed in the closed gas tank, and a sprocket transmission structure is adopted between the three-fracture combined switch and the PT operating mechanism and the emergency power supply operating mechanism of the mechanism chamber, so that the miniaturization design requirement is met. The PT unit is integrated with the incoming and outgoing line unit, the instrument chamber is integrated with the automatic terminal DTU, and a cabinet does not need to be arranged independently. By reasonably distributing the positions of the functional rooms, the occupied space of the ring main unit is reduced, an original old high-voltage cable branch box is replaced, or a state grid standardized ring main unit is replaced in a narrow site, the power supply reliability is improved, and the power failure range of an abnormal accident is minimized.

The invention provides a latex preparation device and a use method thereof, belonging to the technical field of latex preparation, comprising a chassis; a heating box, the heating box is rotatably connected between the inner walls of the chassis through two shafts, and the two shafts extend to the two side ends of the chassis, a filtering mechanism is arranged between the inner walls of the chassis, the filtering mechanism is located on the upper side of the heating box, and is used for filtering the glue liquid; a discharge hopper, the discharge hopper is arranged between the inner walls of the chassis, the bottom of the discharge hopper extends to the side end of the chassis, the secondary gear shaft drives the swing gear to rotate, the swing gear drives the deflection gear to rotate by meshing with the deflection gear, the deflection gear drives a shaft to rotate, and then realizes deflection of the heating box, so that the heating box can realize extreme compression of hollow latex blocks into latex compression blocks by deflecting in a negative pressure environment, thereby reducing the space volume occupied by the hollow latex blocks and reducing the transportation cost of the hollow latex blocks.

The utility model relates to the technical field of X-ray automatic detection equipment, and discloses an adjusting device and X-ray equipment. The adjusting device comprises a supporting mechanism and a hollow rotating platform arranged on the supporting mechanism, the hollow rotating platform is fixedly connected with the X-ray source and drives the X-ray source to rotate, and the hollow rotating platform can slide relative to the supporting mechanism so as to adjust the position of the X-ray source; the supporting mechanism is further provided with a plurality of limiting pieces used for limiting the rotating angle of the hollow rotating platform. According to the adjusting device, the hollow rotating platform is used for driving the X-ray source to rotate around the focus of the X-ray source, the rotating function of the X-ray source is achieved, and meanwhile the rotating precision of the X-ray source can be guaranteed through the hollow rotating platform. In addition, the adjusting device further has the advantages of being simple, compact, low in manufacturing cost and wide in application range.

The invention discloses a gas-fired boiler low-nitrogen burner convenient to adjust gas inflow, and relates to the technical field of boilers, the gas-fired boiler low-nitrogen burner convenient to adjust gas inflow comprises a motor, a gas inlet pipe and a driving mechanism, a first adjusting mechanism is arranged in the gas inlet pipe, and the driving mechanism comprises a fixing disc coaxially fixed to an output shaft of the motor; the outer edge of the side wall of the fixed disc is provided with a plurality of fixed frames which are distributed along the circumferential direction of the fixed disc in an array manner; according to the device, motor rotating speed regulation and control and air door opening and closing regulation and control are combined, when the rotating speed of the motor is increased, centrifugal force drives a balancing weight to move outwards, a first telescopic rod, a fixing pipe and a second telescopic rod push a spiral rod to move axially, the spiral rod is matched with a limiting column, and linear motion is converted into rotation of a first annular fluted disc; therefore, all the blades are driven to integrally and synchronously change the deflection angles of the blades, a sensor and a complex circuit are omitted, the occupied area and the manufacturing cost of the system are reduced, the air inlet amount can be adjusted in a stepless mode in real time according to the air inlet requirement, and different air inlet requirements are met.

The utility model provides a kind of catheter assembly and medical equipment.Catheter assembly includes first tube body and shock wave generation component.First tube body is formed with first accommodating cavity.Shock wave generation component includes at least two discharge parts, at least two discharge parts are spaced apart and set to the distal end in first accommodating cavity along the length direction of first tube body, at least two adjacent discharge parts form discharge region, to produce shock wave in liquid medium in first accommodating cavity.Wherein, discharge region is parallel to the central axis of first tube body, and at least part discharge region and the central axis of first tube body are overlapped.Such ensure that catheter assembly can have smaller size in radial direction, effectively improve the practicability of catheter assembly.In the treatment of blood vessel calcification lesion using catheter assembly, catheter assembly can directly pass through relatively narrow lesion site, effectively simplify the treatment step, reduce the cost required for treatment, and improve the experience of patient use.