368results about How to "Simplify the disassembly process" patented technology

The invention discloses a wearable breast pump, and relates to the technical field of breast pumps. The wearable breast pump comprises a bra, a suction bowl, a one-way flow guide part, a milk bowl and a suction mechanism. The bra comprises a connecting ring and an attaching cup which are integrally formed, the suction bowl is arranged at the end, away from the attaching cup, of the connecting ring and integrally formed with the bra, the bra, the suction bowl and the milk bowl jointly define a breathing cavity, the suction mechanism is communicated with the breathing cavity, and the milk bowl and the bra jointly define a storage cavity. The suction bowl is used for generating elastic deformation under the suction effect of the suction mechanism so that negative pressure can be formed in the bra and milk can be sucked out, and the one-way flow guide piece is used for allowing the milk to flow into the storage cavity. According to the wearable breast pump, the disassembly and assembly process can be simplified, time and labor are saved, the disassembly and assembly efficiency is improved, assembly and breast pumping and disassembly and cleaning are facilitated, and the user experience is improved.

The invention belongs to the field of mechanical seals, and particularly relates to a low-rotating-speed dry friction mechanical seal and a detection method, the rotating speed range is 0.5-200 r / min, the low-rotating-speed dry friction mechanical seal comprises a mandrel, a spring seat, a spring, a moving ring seat, a moving ring, a static ring, a gland and the like, and the mandrel is located in a cavity and can rotate relative to the cavity; the spring seat and the movable ring seat are arranged on the mandrel, the spring seat and the mandrel are completely fixed, and the movable ring seat and the mandrel are fixed in the circumferential direction; the movable ring is arranged on the movable ring seat, and the movable ring and the movable ring seat are processed and fixed into a whole through a special process; the gland is positioned at the outer end of the cavity and is fixedly connected with the cavity through a bolt; the static ring is arranged in the gland and is circumferentially fixed with the gland; the end face of the moving ring and the end face of the static ring are attached to form a sealing face. The sealing effect of the structure is more reliable, and online detection, disassembly and maintenance of the structure are more convenient.

The invention discloses a machining mold for fastener production and a machining method thereof.The machining mold comprises a mold body, a fixing piece is fixedly arranged on the mold body, a mounting sleeve is arranged on the outer side of the fixing piece in a sleeving mode, a reinforcing piece for abutting against and fixing the fixing piece is arranged on the mounting sleeve, and a feeding pipe is clamped in the fixing piece; a filtering piece for filtering the metal melt is inserted into the feeding pipe; through cooperation of the circulating flow channel and the filtering part, it is ensured that impurities can be efficiently removed in the flowing process of metal melt, meanwhile, pipeline blockage caused by impurity accumulation and metal melt solidification is avoided, the metal melt can flow along the conical surface through a conical barrel and filtering holes in the filtering part, the impurities are effectively intercepted, and the filtering effect is improved. And the C-shaped design of the circulating runner allows filtered impurities and part of the metal melt to enter the feeding pipe again, the runner is kept unblocked, and the design not only prevents accumulation of the impurities, but also avoids solidification of the metal melt through circulating flow.

The utility model discloses a mounting base of a liquid level switch, which comprises a base body, the outer surface of the base body is provided with a placing groove, the inner surface of the placing groove is provided with the liquid level switch, the inner surface of the placing groove is fixedly connected with a first spring, and the upper end of the first spring is fixedly connected with a connecting plate. A sliding block is fixedly connected to the side surface of the connecting plate, a guide rod is slidably connected to the inner surface of the sliding block, a buckle seat and a buckle assembly are fixedly connected to the side surface of the liquid level switch, and the buckle assembly comprises a fixing box, a sliding rod, an L-shaped buckle block, a second spring, an inclined surface block, a triangular block, a connecting rod and a handle block. The liquid level switch can be conveniently mounted and dismounted through the arrangement of the buckle seat and the buckle assembly, so that the trouble of using tools is avoided, the liquid level switch can be jacked up after being dismounted through the cooperation of the arrangement of the first spring, the connecting plate, the sliding block and the guide rod, the dismounting process is simplified, and thus the working efficiency is improved.

The utility model discloses an ultrahigh-cleanliness purification workshop for chip packaging, and relates to the technical field of purification workshops. The workshop ventilation device mainly comprises a workshop wall body, a ventilation pipeline, a ventilation fan, a filtering piece and an installation piece, the ventilation pipeline is horizontally arranged and penetrates through the workshop wall body, the ventilation fan and the filtering piece are both installed in the ventilation pipeline, the filtering piece comprises an installation frame, and a filtering plate is installed between the inner walls of the installation frame. The number of the installation parts is two, the installation parts are arranged on the two opposite sides of the ventilation pipeline respectively, each installation part comprises a U-shaped clamping plate, an opening of each U-shaped clamping plate is arranged on one side of the ventilation pipeline in a clamped mode, two limiting plates are fixed to the outer side wall of each U-shaped clamping plate, the installation frame is located between the two limiting plates, and a control plate is fixed to the outer side wall of each U-shaped clamping plate. Through the design of the U-shaped clamping plate and the limiting plate, the filter element can be quickly mounted and dismounted, so that the time required for replacing the filter screen is greatly shortened, and the production efficiency is improved.

The utility model discloses a split type AGV trolley connecting structure, and relates to the technical field of automated guided vehicles, the split type AGV trolley connecting structure comprises an AGV trolley, the rear side of the AGV trolley is fixedly provided with a front connecting seat, the front side of the AGV trolley is fixedly provided with a corresponding rear connecting seat, the rear end of the front connecting seat is provided with a sliding column sliding up and down, the upper end of the sliding column is provided with a connecting round seat, and the upper end of the connecting round seat is provided with a connecting rod. Left and right half conical seats are arranged on the upper side of the connecting round seat. According to the AGV trolley connecting structure, the front trolley and the rear trolley can be directly, rapidly and automatically combined in the process that the front trolley and the rear trolley are close to each other through the locking and buckling mechanisms on the front connecting base and the rear connecting base, and when the trolleys need to be disassembled, the semi-conical bases on the two sides are tightened, the center connecting round base is pressed downwards, and then the trolleys can be disassembled. The front trolley and the rear trolley can be disassembled by locking the buckling bases through the connecting round base and the half-cone base structures on the two sides, the production efficiency, flexibility and stability are improved, and therefore positive significance is brought to optimization and upgrading of a production line.

The embodiment of the utility model provides a board card structure and a server with the same, the board card structure comprises a board card body and a board card support, and the board card body is provided with a plurality of first locking holes; the board card body is provided with a plurality of first locking holes, the board card support is provided with a plurality of second locking holes, and the plurality of second locking holes and the plurality of first locking holes are oppositely arranged in a one-to-one correspondence mode, so that the board card body and the board card support are locked by arranging locking parts in the first locking holes and the corresponding second locking holes in a penetrating mode. The problem that in the prior art, a board card and a case are fixed through a buckle and are prone to falling off is at least solved.

The utility model discloses a photovoltaic module mounting bracket, which comprises a first supporting assembly which is an integral piece formed by a first connecting plate, a second connecting plate, a fixing block, a first threaded rod, a fixing plate and a bolt, the first connecting plate is provided with a connecting port, the bolt is matched in the connecting port, the tail end of the bolt is matched with a first nut, and the second connecting plate is provided with a second nut. A groove and a butt joint groove are formed in the second connecting plate, and one end of the first connecting plate is matched with the groove. The first connecting plate and the second connecting plate move relatively to adjust the distance between the first supporting assembly and the second supporting assembly, so that the dimension specification of the mounting bracket is adjusted, the application range of the mounting bracket is expanded, brackets of corresponding specifications do not need to be customized, and the practicability and the economical efficiency are enhanced; and only the corresponding second threaded rod needs to be unscrewed to be separated from the threaded barrel, the bolt is separated from the first nut, and then the first connecting plate is pushed to be separated from the second connecting plate, so that the disassembly and assembly process is very simple, the disassembly and assembly difficulty is effectively reduced, and convenience is enhanced.

The utility model provides a fan blade installation structure and a lamp fan with the fan blade installation structure, and belongs to the technical field of fan blade installation, the fan blade installation structure comprises a fixing base, a blade, a first clamping assembly, a second clamping assembly, a first elastic piece and a second elastic piece, the blade is provided with an inserting groove and an inserting hole; the first clamping assembly comprises a rotating shaft, a rotating piece rotationally connected with the fixing base through the rotating shaft and a clamping hook arranged at the bottom of the rotating piece in a protruding mode, and the clamping hook is used for being matched with the inserting groove. The second clamping assembly comprises a plug connector capable of moving up and down, and the plug connector is used for being matched with the insertion hole; the first elastic piece is connected to the rotating piece and has a pre-tightening force for enabling the clamping hook to extend into the slot; and the second elastic piece is connected to the plug connector and has pretightening force for enabling the plug connector to extend into the jack. The lamp fan comprises a rotating disc and a plurality of fan blade mounting structures.

The invention relates to the field of LED display screen installation and splicing, and discloses an arc-shaped lock capable of adjusting an LED display screen box gap, the arc-shaped lock comprises a first lock seat and a second lock seat, the inner side of the first lock seat is in sliding connection with a first lock cylinder, the inner side of the second lock seat is in sliding connection with a second lock cylinder, the middle of the first lock cylinder is provided with a locking assembly, and the locking assembly is arranged on the inner side of the second lock seat. A fixing assembly is fixedly installed on the side face of the first lock cylinder, the locking assembly comprises a clamping column, the clamping column is arranged in the middle of the first lock cylinder and the middle of the second lock cylinder, a sliding groove is formed in the clamping column, and a pin is slidably connected into the sliding groove. The clamping blocks are opened to be clamped into the annular groove in the second lock cylinder, and internal buckling and axial limiting of the two lock cylinders are achieved. And in cooperation with a screwing structure of the nut and the external thread of the clamping column, continuous axial pressing force can be applied to the surface of the lock cylinder, and the flatness of the splicing face of the LED display screen and the stability of the overall structure are ensured.

The utility model relates to a controller assembly, a motor control system and a vehicle, and the controller assembly comprises a controller housing which is internally provided with a housing cavity, and the housing wall of the controller housing is provided with an adapter port communicated with the housing cavity; the control circuit board is arranged in the shell cavity; the adapter is arranged in the shell cavity and comprises an adapter terminal and a terminal mounting part, the adapter terminal is arranged on the terminal mounting part, the first end of the adapter terminal is electrically connected with the control circuit board, and the second end of the adapter terminal is arranged in the adapter port; and the fastener can be used for detachably connecting the control circuit board and the terminal mounting part to the controller shell. By means of the fastener, the control circuit board can be installed on the controller shell, the adapter can be installed on the controller shell, connecting parts do not need to be independently arranged for installing the adapter, the installing and disassembling procedures are simplified, and cost can be effectively reduced.

The invention relates to the technical field of harmful gas detection and alarm, in particular to a chemical filling workshop harmful gas detection and alarm device which comprises a base, a gas detector body is installed on the top face of the base, the air inlet end of the gas detector body is communicated with an air inlet pipe, and the other side of the gas detector body is communicated with an exhaust assembly. An exhaust pipe is arranged on the exhaust assembly, the exhaust pipe is communicated with the air outlet end of the gas detector body, the air inlet pipe is communicated with a telescopic pipe through a connecting assembly, a movable seat is arranged on the bottom surface of the base, a multi-stage electric cylinder is mounted on the top surface of the movable seat through a mounting seat, and a sampling round block is mounted on a piston rod of the multi-stage electric cylinder; the upper end of the telescopic pipe is communicated with the interior of the sampling round block; and an audible-visual-electric alarm is mounted on the top surface of the gas detector body. The monitoring flexibility and convenience of the gas detector body are improved, the device covers different height areas in the chemical filling workshop, and it is ensured that no dead angle and no omission exist in harmful gas monitoring.

This application relates to a UAV frame for bridge inspection, belonging to the technical field of UAVs. It includes a UAV body with a connecting frame at its bottom. This application utilizes a plug-in engagement between a plug and the connecting frame, and a limiting block driven by a push spring in a snap-fit ​​assembly to achieve automatic initial positioning. Simultaneously, a bidirectional lead screw driven by a first servo motor in the limiting assembly drives a moving frame and its locking block for a secure secondary locking. This significantly simplifies the installation and disassembly process of the UAV body and the connecting frame. Furthermore, a buffer assembly located on the outside of the connecting frame, with its support plate sliding within the damping sleeve of the support leg via a slide rod, compresses the buffer spring. This effectively absorbs and dissipates the impact energy generated during UAV takeoff and landing or sudden collisions, maximizing the protection of the precision components inside the UAV body and the shooting and detection devices within the mounting frame. This significantly reduces data acquisition errors and improves operational safety and data reliability.

The invention belongs to the field of high-power solid lasers, and particularly relates to a linkage locking sheet-shaped amplifier sealing bottom plate structure convenient to disassemble and assemble. The structure comprises a bottom plate, a driving sliding block mechanism, a pi-shaped sliding frame, a sliding linkage mechanism and a positioning locking mechanism. The pi-shaped sliding frame is driven to slide by driving linear movement of the sliding block mechanism, and the locking rods of the multiple positioning locking mechanisms are synchronously controlled through the sliding linkage mechanism, so that rapid locking and unlocking operation of the sealing bottom plate is achieved. And a pre-tightening spring in the positioning and locking mechanism provides automatic pulling force, so that a firm locking effect is ensured. The linkage locking mechanism is used for replacing a screw fixing mode in the prior art, mounting and dismounting of the sealing bottom plate can be rapidly completed only through simple sliding operation, the operation process is greatly simplified, the maintenance difficulty is reduced, and the working efficiency is effectively improved.

The present invention discloses an air duct assembly, and relates to the field of air conditioning technology. The air duct assembly includes a first air duct, a second air duct, a crossflow fan blade, a driving motor and a sweeping wind blade. One end of the first air duct is detachably connected to the second air duct, and the other end is used to be hinged with a rear panel. The first air duct and the second air duct are combined to form an air outlet cavity. The driving motor and the crossflow fan blade are both installed on the first air duct, and the driving motor is connected to the crossflow fan blade. The crossflow fan blade is arranged in the air outlet cavity. The first air duct is provided with an air outlet connected to the air outlet cavity, and the sweeping wind blade is installed in the air outlet. The first air duct can be rotated relative to the rear panel to be separated from the second air duct, thereby opening the air outlet cavity. The air duct assembly provided by the present invention can take out the driving motor, the crossflow fan blade and the sweeping wind blade while rotating the first air duct, simplifying the disassembly and assembly process, reducing the disassembly and assembly parts and steps, improving the disassembly and assembly efficiency, realizing rapid disassembly and assembly, and facilitating the cleaning of the air duct assembly.

The utility model discloses a mounting structure of a helicopter rotor shaft dynamic sealing ring dismounting tool, which comprises a base, a dismounting head is arranged at the top of the base, the dismounting head comprises a push-and-pull disc, vertical rods are fixedly connected to the top of the push-and-pull disc in an annular array, a top disc is fixedly connected to the tops of the vertical rods, and the top disc is fixedly connected to the top of the push-and-pull disc. Hinge grooves penetrating to the bottom are formed in the top of the top disc in an annular array mode, hydraulic push rod sleeve connecting rods are fixedly connected to the bottoms of the inner sides of the multiple vertical rods, hydraulic push rod sleeves are fixedly connected to the inner sides of the multiple hydraulic push rod sleeve connecting rods, and second hydraulic push rods are fixedly connected to the inner walls of the hydraulic push rod sleeves. Through the arrangement of the dismounting head, the dismounting process of the sealing ring and the rotor shaft is simplified through the design of the dismounting tool, the dismounting efficiency and safety are remarkably improved, through accurate control of a hydraulic system, it is ensured that dismounting force is evenly applied, and the problem that the sealing ring is damaged or is not thoroughly dismounted due to the fact that the force is too large or too small is solved.

This utility model discloses a modular axle forging anvil assembly, including a medium anvil, side anvils symmetrically arranged on both sides of the medium anvil, a positioning and connecting mechanism, and a bolt assembly. A reinforcing rib is fixedly connected to the side wall of the medium anvil near the side anvils, and the reinforcing rib has a movable cavity. The positioning and connecting mechanism includes a positioning block slidably disposed within the movable cavity. The positioning block is inserted into the side anvil, and a connecting rod is fixedly connected to one side of the positioning block. A lifting seat is fixedly connected to the end of the connecting rod away from the positioning block. The bolt assembly includes a bolt threadedly connected to the side anvils. The end of the bolt passes through the reinforcing rib and abuts against the lifting seat, and the end has a tapered rod. This utility model allows the side anvils to be detachably connected to the medium anvil via the positioning and connecting mechanism and the bolt assembly, facilitating the replacement of suitable side anvils for different axle models without requiring a complete replacement of the assembly, thus reducing equipment costs and expanding applicability.

The utility model relates to the technical field of battery installation, and discloses a new energy automobile battery pack and automobile body integrated connecting structure which comprises a chassis fixing frame, an adjusting mechanism is arranged on the chassis fixing frame, an auxiliary mechanism is arranged on the adjusting mechanism, and the adjusting mechanism comprises a top hole. The top hole is formed in the inner wall of the top of the base plate fixing frame, the inner wall of an inner ring of the top hole is in threaded connection with a fixing screw, the outer wall of the bottom of the base plate fixing frame is fixedly connected with a T-shaped frame, a penetrating hole is formed in the inner wall of the front side of the T-shaped frame, the inner wall of the top of the T-shaped frame is slidably connected with a concave frame, and butt joint holes are formed in the outer walls of the front side and the rear side of the T-shaped frame. According to the utility model, the convenient installation and stable connection of the battery pack rack and the vehicle body are realized through the structural design, and the use amount of fixing parts is reduced by utilizing the guiding and limiting effects of a specific structure, so that the disassembly and assembly process is simplified, the maintenance time is shortened, and the protection performance can be enhanced through the sealing part.

The invention provides a large sprinkling machine truss device which comprises a main frame, two auxiliary frames and a traction mechanism, and the main frame is installed on a sprinkling machine; the two auxiliary frames are symmetrically arranged at the two ends of the main frame, the auxiliary frames and the main frame are rotationally connected through shaft bodies, and the auxiliary frames can be screwed into the main frame; a locking assembly is arranged between the auxiliary frame and the main frame, and the shaft body and the locking assembly are located at the ends, connected with the main frame, of the auxiliary frame respectively. The traction mechanism comprises a base plate, a telescopic supporting assembly, a winding assembly and two steel wire ropes, and the base plate is connected with the main frame and located in the middle of the main frame; the telescopic supporting assembly and the winding assembly are installed on the base plate. And the two steel wire ropes are symmetrically arranged. According to the truss device of the large sprinkling machine, the auxiliary frame is stored in the main frame through the traction mechanism, the disassembly and assembly process is simplified, the occupied space is reduced, and therefore convenient conditions are provided for transfer.

The utility model provides a novel implant Marilong bridge frame which comprises a base implant, a retention piece fixed on the base implant, a Marilong bridge frame main body assembled on the retention piece and a plurality of false tooth units installed on the Marilong bridge frame main body, the base implant is embedded in an alveolar bone, and the false tooth units are arranged on the base implant. The upper end of the retention piece is uniformly provided with a plurality of Marilong bridge connecting bosses, the top of each Marilong bridge connecting boss is provided with a magnetic buckle positioning groove, a first magnetic ring buckle is arranged in each magnetic buckle positioning groove, and the bottom of the Marilong bridge main body is uniformly provided with a plurality of retention bayonet grooves; a second magnetic ring buckle is arranged at the upper end of the interior of each retention bayonet groove, the Marilong bridge connecting bosses are matched with the retention bayonet grooves and correspond to the retention bayonet grooves in a one-to-one mode, and the first magnetic ring buckles are matched with the second magnetic ring buckles. The utility model relates to the technical field of false tooth repair.

The utility model discloses an infrared thermal imager of quick replacement lens and optical filter, including casing and external lens subassembly. External lens subassembly is fixed through screw thread connection in the outside of casing, contains lens fixing piece, infrared lens, lens fixed ring, optical protection window and lens decoration ring. Infrared lens is fixed in lens fixing piece through screw thread, and the front end is equipped with detachable optical protection window (optical filter or germanium window), and is locked and fixed by lens decoration ring. Lens fixed ring and waterproof seal ring constitute double waterproof structure, ensure IP67 protection level. The device passes through modularization screw thread connection design, makes the user can replace different specifications infrared lens and optical protection window, adapts multiband observation demand. Its advantages include: simple operation, strong leakproofness, high environmental adaptability, especially suitable for the scene of flexible adjustment equipment such as fire control, industrial detection etc.

The utility model relates to the technical field of tool changing assemblies, in particular to a tool changing assembly based on an engraving and milling machine, which comprises a guide rail pair guide rail, at least two groups of guide rail pair sliding seats are mounted on the surface of the guide rail pair guide rail in a sliding manner, a first air cylinder is mounted above the guide rail pair sliding seats, and a first piston rod for stretching is arranged in the first air cylinder. A first base is fixedly installed at the end of the first piston rod and is of a U-shaped structure. According to the scheme, through the synergistic effect of the guide rail pair sliding seats and the first air cylinder, height and position adjustment of the tool bit is achieved, it is ensured that the tool bit can be accurately conveyed to the tool bit position of the engraving and milling machine, one guide rail pair sliding seat is used for taking down an old tool bit, the other guide rail pair sliding seat is used for installing a new tool bit, and the tool changing efficiency is remarkably improved; and through cooperation of a servo motor and a position sensor, the accuracy and stability of front-back inclination angle adjustment of the tool bit are further guaranteed, manual intervention is reduced, and the automation degree is improved.

The utility model relates to cooling equipment technical field discloses a cooling tower, including base, the upper surface fixed connection of base has support frame, the upper surface fixed connection of support frame has tower body, the outer wall fixed connection of tower body has the fairing, the inside fixed connection of fairing has the fan, the inside fixed connection of tower body has annular pipe, the inside fixed connection of annular pipe has the limit cylinder, the inside sliding connection of limit cylinder has the clamping block, the outer wall fixed connection of clamping block has first telescopic link, the outer wall sliding connection of first telescopic link has first spring. In the utility model, through adopting elastic buckle structure, through the mutual cooperation between clamping block, first spring and limit cylinder, through simple pulling, the spray head can be separated from annular pipe, only needs to be inserted during installation to be automatic locking, need not the tool auxiliary, significantly shorten the spray head replacement or cleaning time, avoid the cooling efficiency decline caused by the spray head blockage, guarantee equipment continuous stable operation.

This utility model discloses a self-positioning fan-shaped anode CNC integrated machining fixture, including an operating table, a first positioning component, and a second positioning component. The operating table has a central hole. The first and second positioning components have fan-shaped ring bases with central angles of 120° and 90° respectively, integrally formed with the operating table. Each positioning component has concentrically distributed fan-shaped ring support surfaces, symmetrically distributed positioning through holes, and limiting posts. The positioning through holes are concentric with the central hole, and the limiting posts maintain a preset center distance from the central hole. This utility model reduces assembly errors, uses stainless steel material and high-precision surface treatment to ensure stability, utilizes alloy steel limiting posts to enhance load-bearing capacity, and combines the central hole, positioning through holes, and limiting posts to form a three-level positioning reference system. This enables multi-size anodes to be clamped in one operation for integrated milling, drilling, and other processes, resulting in high assembly accuracy, effectively shortening clamping time, and improving processing efficiency and product yield.

The utility model relates to paper processing equipment technical field discloses a kind of processing equipment for high-temperature-resistant waterproof wrapping paper production, including rack, and the side of rack is equipped with feed inlet, and feed inlet is used to high-temperature-resistant waterproof wrapping paper into the inboard of rack;Two support plates are fixed in the inner wall of rack, and two groups of rotating rollers are rotatably connected between rack and support plate, and rotating roller is used to flatten high-temperature-resistant waterproof wrapping paper;Rack top is equipped with heating assembly, and heating assembly is used to dry high-temperature-resistant waterproof wrapping paper;Heating assembly side is equipped with connecting assembly, air is heated by electric heating wire, and hot air is blown out using fan, and several air outlets on first air outlet pipe are evenly blown to the two sides of raw material, to ensure that drying process is uniform, can quickly and effectively dry treatment to high-temperature-resistant waterproof wrapping paper kraft paper raw material, remove moisture in paper, improve production efficiency.

The utility model relates to the technical field of electronic engineering, in particular to a phased-array antenna testing device. The utility model provides a phased-array antenna testing device, which comprises a placing base, a first magnet, a phased-array antenna, a butt joint rod, a second magnet and the like, the placing base is provided with a butt joint groove, the butt joint groove is internally provided with the first magnet, the phased-array antenna is placed on the placing base, the bottom of the phased-array antenna is connected with the butt joint rod, and the butt joint rod is connected with the second magnet. The butt joint rod is clamped and matched with the butt joint groove, a second magnet is installed at the bottom of the butt joint rod, and the first magnet and the second magnet are magnetically attracted. Through the arrangement of the base, the first magnet, the butt joint rod, the second magnet, the mounting shell, the guide frame, the lifting ring, the supporting legs, the torsional spring, the lead screw, the guide rod, the mounting plate and the motor, the phased-array antenna can be quickly disassembled and assembled, the assembling and disassembling process of the antenna is simplified, the operation convenience and efficiency are remarkably improved, and the working efficiency of the phased-array antenna is improved. And the requirements of frequent mounting and dismounting in the transportation process are particularly met.

The point fixing device comprises a bottom plate and a tripod at the bottom, a middle shaft is vertically arranged at the upper end of the bottom plate, a bearing is rotationally sleeved outside the middle shaft, a rotating drum is rotationally sleeved outside the bearing, an adjusting bolt is arranged on the side wall of the rotating drum in a threaded connection and penetrating mode, and a braking vane is arranged in a crack between the middle shaft and the rotating drum. A horizontal compass is arranged at the top of the middle shaft, a mounting seat is arranged on the side wall of the rotating drum, an outer pipe is detachably and fixedly mounted on the mounting seat and is perpendicular to the middle shaft, an inner rod is slidably inserted into the outer pipe and is perpendicular to the middle shaft, and a marker post is vertically and fixedly arranged above the tail end of the inner rod; a locking structure used for fixing the inner rod is further arranged on the outer pipe, and a target rod is further vertically arranged on the top of the installation base and located on the periphery of the horizontal compass. The device can effectively solve the problem that the marker post is shielded by a shielding object when a reference point is set on a fall land, and can accurately reproduce the position of the marker post during re-measurement, so that the surveying and mapping precision and efficiency are improved.

The utility model discloses a telescopic adjustable buffer, which relates to the technical field of buffers, and adopts the technical scheme that the telescopic adjustable buffer comprises an outer cylinder body, an inner cylinder body is arranged at one end of the outer cylinder body, a cavity is formed between the outer cylinder body and the inner cylinder body, a plugging plate is connected in the cavity in a sliding manner, a plug is arranged at one end of the plugging plate, and the other end of the outer cylinder body is in threaded connection with a rotary screw cap; a rotary handle fixedly connected with the rotary screw cap is arranged on the rotary screw cap, and the bottom of the rotary top cover abuts against the plugging plate. When the buffer is installed, the rotating handle is rotated, the overall length of the buffer is increased, the protrusion and the inner cylinder body abut against equipment at the same time, then stable installation of the buffer is achieved, when the buffer needs to be disassembled, the rotating handle can be rotated reversely, the overall length of the buffer is shortened, and therefore the buffer can be taken down conveniently. In the process, tools or other auxiliary means are not needed, the process can be achieved only by rotating the rotating handle, and the disassembly and assembly process of the buffer is simplified.