147results about How to "Precise height adjustment" patented technology

The invention discloses an assembly type building stair mold, and relates to the technical field of stair molds, the assembly type building stair mold comprises a mold mechanism, the side face of the mold mechanism is provided with a transverse steel bar limiting mechanism, and the transverse steel bar limiting mechanism is used for limiting and fixing transverse steel bars in a prefabricated stair. According to the longitudinal reinforcement limiting mechanism, the height of a clamping head is accurately adjusted through a third mounting bolt, the clamping head can be flexibly selected according to the diameter of a longitudinal reinforcement, the mounting height and position of the longitudinal reinforcement can be accurately controlled, the overall positioning accuracy of a reinforcement framework is guaranteed, and then the mechanical property of the prefabricated stair is improved; the sleeve plays a role in protecting the end, inserted into the mold mechanism, of the third mounting bolt, it is avoided that concrete adhesion affects bolt disassembly, meanwhile, due to the detachable design of the third mounting bolt and the modular structure of the steel bar limiting mechanism, the demolding difficulty is lowered, damage to stairs after a component is formed is reduced, and the demolding efficiency and the finished product quality are improved.

The invention discloses an electric power facility installation pipeline hanger which comprises a top plate, a height adjusting assembly is arranged on the bottom side of the top plate, a first connecting base is connected to the lower portion of the height adjusting assembly, a linkage plate is movably connected into the first connecting base in a sleeved mode, and a fixing frame is arranged below the linkage plate. A second connecting base is fixedly installed on the top side of the fixing frame, a linkage plate is arranged, the two ends of the linkage plate are movably connected into the first connecting base and the second connecting base fixedly connected with the top side of the fixing frame in a sleeved mode, an operator can easily adjust the inclination angle only by directly applying force with hands to move the fixing frame, complex tools are not needed, and in an electric power facility installation site, the operation is convenient. For installation of a cable pipeline of a transformer substation, for complex layout and space limitation, the inclination angle can be adjusted, operation convenience and efficiency can be greatly improved, the angle is accurately controlled through the bevel protractor and the pointer, so that it is ensured that the pipeline installation position and trend meet the standard, and then installation precision and reliability are improved.

The utility model discloses a monitoring network wiring tool, which comprises a wire arranging platform, a wiring tightening mechanism, a tightening auxiliary mechanism and a lead screw adjusting mechanism, and is characterized in that the wiring tightening mechanism comprises a wire arranging pipe, a moving rod, a sliding block, a moving block, a moving groove and a tightening plate; the tightening auxiliary mechanism comprises a locking rod, a locking head, a locking spring, a longitudinal plate, a longitudinal groove and a deep groove hole, the lead screw adjusting mechanism comprises a driving motor, a lead screw, a threaded block and a side frame, through the design of a moving rod, a sliding block, a moving block, a moving groove and a tightening plate, a cable can be quickly and efficiently tightened, the wiring process is simplified, and the wiring efficiency is improved. The design of the tightening plate ensures the consistency and stability of cable tightening, the design of the locking rod, the locking head and the locking spring ensures the safety in the wiring tightening process, and the cable is prevented from slipping or shifting in the tightening process.

The utility model relates to the technical field of pile drivers, in particular to a pile driver convenient to move, and solves the technical problems that a fixing structure of the pile driver is often troublesome to disassemble, and time of workers is wasted. According to the technical scheme, the pile driver convenient to move comprises universal wheels, a bottom plate, a handrail, a storage box, a height adjusting assembly, a power transmission assembly and a drilling assembly; through cooperative operation of the height adjusting assembly and the power transmission assembly, the height of the fixing rod can be accurately adjusted, it is guaranteed that the fixing rod is smoothly inserted into the ground, and therefore the pile driver is stably fixed, the deviation problem caused by vibration in the working process is effectively prevented, and it is guaranteed that the pile driving position is accurate; and through cooperation, the stability of the fixing rod during rotation is enhanced, the fixing rod can be firmly fixed in the ground and is combined with efficient operation of the drilling assembly, the overall operation efficiency of the pile driver is improved, and great convenience is brought to the construction process.

The utility model relates to the field of maintenance frame discloses a maintenance frame for lifting type industrial robot, including base, the top of base is provided with lifting assembly, the top fixed connection of lifting assembly has fixed platform, both sides of fixed platform all are fixedly connected with two connecting frames, the left side fixed connection of connecting frame has support frame, the bottom rotatory connection of support frame has support rod, the other end rotatory connection of support rod has support screw rod, the other end fixed connection of support screw rod has driven rod, the middle rotatory connection of driven rod has fulcrum rod, the side fixed connection of driven rod has adjusting rod. In the utility model, enhance platform stability, this design operation is simple, compact structure, can fixedly spread of extension board fast, is applicable to industrial maintenance scene etc, has the advantages such as smooth unfolding, locking reliable, strong bearing capacity, effectively promotes work efficiency and security.

The application provides a kind of biological organic fertilizer efficient aerobic fermentation device, it relates to organic fertilizer fermentation technical field, including: base;The base is fixed with support, the upper portion of support is hinged with baffle, and support is installed with screw rod lifting seat A and screw rod lifting seat B by bolt, and the screw rod in screw rod lifting seat A and screw rod lifting seat B is connected with the lower end of baffle by pin shaft, and the input shaft of screw rod lifting seat A is connected with the input shaft of screw rod lifting seat B with connecting rod;The application integrates stirring, oxygen supply, fungicide spraying, material conveying, waste gas treatment and other multiple functions, forms complete fermentation process system, through the collaborative work of each hydraulic rod, motor and transmission mechanism, can be flexibly adjusted according to different material characteristics and fermentation process parameters, is suitable for efficient fermentation production of various biological organic fertilizer, has strong environmental adaptability and process expandability, helps to improve the automation level and product quality stability of organic fertilizer production.

This invention provides a track elevation adjustment device, comprising: an adjustment bracket; a track clamp vertically disposed inside the adjustment bracket in a position-adjustable manner; and a drive unit with a power output end connected to the track clamp. This invention supports the track clamp and drive unit through the adjustment bracket, clamps the track to be adjusted through the track clamp, and drives the track clamp to adjust its vertical position through the drive unit, thereby vertically lifting the track to be adjusted and adjusting the adjusting shims at the bottom of the track. After adjustment, the drive unit drives the track clamp to lower its vertical position so that the track falls onto the adjusted shims, completing the elevation adjustment. The device allows for one-time elevation adjustment, precise adjustment of the track's height, and convenient adjustment.

The utility model relates to the field of woodworking equipment discloses an edge banding machine edge banding strip cutting device, including installation base, the inner wall rotation of installation base is connected with worm wheel, the inner wall screw thread connection of worm wheel has the lift pole, the outer wall sliding connection of lift pole has the tool rest, the outer wall sliding connection of lift pole has the first spring, the inner wall fixed connection of installation base has the first guide rod, the inner wall installation of tool rest has the motor, the output fixed connection of motor has the cutter, the outer wall fixed connection of tool rest has the adaptive block, the bottom of installation base is provided with collection subassembly. In the utility model, through the worm drive worm wheel drives the lift pole rotation, realizes the up-and-down movement of lift pole, the first guide rod ensures that the tool rest moves and does not deviate, adapts different width edge banding strip cutting, the adaptive block and the first spring cooperate, can compensate the thickness of edge banding strip tiny fluctuation, always guarantees the cutter and cutting surface closely.

The application provides a surveying and mapping instrument positioning device for engineering surveying and mapping, and relates to the technical field of engineering surveying and mapping equipment, which comprises a support seat and further comprises an expansion adjusting assembly, wherein the expansion adjusting assembly comprises a first driving motor mounted at the bottom of the support seat, in the application, the gear engages to drive two centrally symmetrical racks to move reversely, the moving seat is synchronously moved with the racks through sliding cooperation with the linear guide rails, flexible adjustment of the distance between the support rods is realized, the rotating seat can rotate around the support frame, the angle is adjusted through the arc-shaped guide rails, and the positioning is completed by tightening the first knob bolt after the rotating seat is in place, in the multistage telescopic assembly, the support rods, telescopic rods and fine adjustment rods can slide along the length direction, are stretched to a suitable height as required, and are locked and fixed through corresponding knob bolts, the support rods on the support seat and the rotating seat are matched, telescopic adjustment and angle adjustment are combined, quick and flexible adjustment of the support span, the angle and the height is realized, and stable placement of the surveying and mapping instrument under various terrains is ensured.

The cutter bar comprises a cutter handle and the blade, a containing groove is formed in the position, close to the left side edge, of the upper end of the cutter handle, the blade is placed in the containing groove, a first locking screw is arranged at the upper end of the blade, and the blade is fixed to the cutter handle through the first locking screw. A sliding groove is formed in the lower end of the knife handle, a supporting block is slidably connected to the inner side wall of the sliding groove, the lower end of the supporting block penetrates through the sliding groove, a plurality of vertically-arranged supporting columns are arranged at the upper end of the supporting block in an inserted mode from left to right, the supporting columns are in threaded connection with the supporting block, and a transversely-formed storage groove is formed in the knife handle. The upper end of the supporting column penetrates through the cutter handle and is fixedly connected with a second gear, and the second gear is located in the containing groove. Through the arrangement of the supporting block, the supporting column and other mechanisms, improvement and optimization are conducted on the basis that the blade can be replaced, the cutter handle can be accurately adjusted to the needed height, the anti-loosening effect is achieved, and the good market prospect is achieved.

The utility model belongs to the field of tunnel detection equipment, particularly relates to a tunnel steel frame gradient detection device, and provides the following scheme aiming at the problem that a single-foot stand and a quadrangular prism support of an existing tunnel steel frame gradient detection device are fixedly connected, so that the detection device is inconvenient to store and carry during use. The device comprises a quadrangular support, a connecting assembly and an adjusting mechanism, the connecting assembly is arranged at the bottom of the quadrangular support and comprises a connecting piece, an inserting groove, a ball, an annular plate, a lantern ring, a spring and a fixing rod, the connecting piece is welded to the bottom of the quadrangular support, and the inserting groove is formed in the bottom of the connecting piece; and an adjusting mechanism is arranged in the slot. According to the utility model, through cooperation of all the parts, the detection equipment can be disassembled and stored, the convenience is improved, the height of the detection equipment can be adjusted, the structure is simple, the operation is easy, and the practicability is improved.

The utility model relates to the technical field of horizontal bars, in particular to a horizontal bar height-adjustable fixing base which comprises two base bodies, the two base bodies are placed at proper positions firstly, if the supporting range needs to be adjusted and a first supporting rod or a second supporting rod needs to be pushed, a rack connected with the supporting rods moves in a groove to drive a gear to rotate, and then the horizontal bar is fixed. When the height of the horizontal bar is adjusted, a handle on the outer side of a fixing rod is rotated to drive a worm to rotate, the worm is meshed with a worm gear, the worm gear is made to rotate, and then a threaded rod is driven to rotate. Along with rotation of the threaded rod, the telescopic rod slides up and down in the fixed rod, so that the height of the horizontal bar is changed, the requirements of different users are met, and in the whole process, all parts are matched with one another, and flexible adjustment of the height and the supporting range of the horizontal bar is achieved.

This utility model relates to the field of oven equipment technology, specifically an infrared oven with a self-cleaning function. It includes an infrared oven body, with several supporting columns evenly fixedly installed at the bottom of the oven body. A load-bearing base plate is fixedly installed at the bottom of each supporting column. An adjustable cleaning mechanism is provided on one side of the top of the infrared oven body. This self-cleaning infrared oven, through the adjustable cleaning mechanism, uses a micro-motor to drive a transmission screw to rotate, causing a sliding nut block to move up and down along a limiting groove. This, in turn, drives the supporting limiting connecting rod, L-shaped bracket, vacuum head, and cleaning brush to achieve height adjustment. This design effectively solves the problem of inconvenient height adjustment of cleaning components in existing technologies. It can precisely adjust the contact height and force between the cleaning brush and the surface to be cleaned (such as a conveyor belt) according to different cleaning needs, improving the cleaning effect and enhancing the flexibility of cleaning use.

This utility model relates to the field of post-printing processing technology, and more particularly to a UV ink fixing device for PVC anti-slip mats. This utility model provides such a UV ink fixing device for PVC anti-slip mats, including a body, guide blocks, a conveyor belt, a motor, a steel roller, a discharge device, magnet two, and magnet one, etc.; the guide blocks are installed inside the body, the conveyor belt is installed on the body, the motor is installed on one side of the body, the motor output shaft is connected to the drive roller shaft of the conveyor belt, the discharge device is movably installed on the body, the steel roller is rotatably arranged between the discharge devices, magnet two is symmetrically installed on the discharge device, and magnet one is movably attracted to magnet two. This utility model uses a rotating knob to drive a threaded rod to move the connecting frame, achieving smooth lifting and lowering of the discharge device, and precisely adjusting the coating height, thus adapting to PVC anti-slip mats of different thicknesses.

The utility model relates to the technical field of solid state disk testing, and discloses a plugging mechanism for a hot plugging test of a solid state disk, a plugging force testing machine is used for carrying out the hot plugging test on the solid state disk in a matching manner, and the top of the plugging force testing machine is provided with an installation platform. The right side of the top of the mounting platform is provided with a clamping mechanism which is matched with the hot plug detection unit for clamping and positioning, and the hot plug detection unit is provided with a detection socket which is matched with the insertion detection of the solid state disk; the clamping mechanism is used for clamping and positioning hard disk racks of different sizes, the clamping mechanism is installed on a lifting platform of the lifting mechanism, the lifting mechanism is used for adjusting the height of the hard disk racks, and the hard disk racks are used for clamping and positioning solid state disks; the rotary reciprocating mechanism converts rotation into linear motion and reciprocatingly inserts and pulls the plugging port of the solid state disk into and out of the hot plug detection unit, so that automatic plugging detection of the solid state disk can be realized, and the automation degree is high.

The utility model relates to the technical field of buildings, and discloses a positioning device for building water supply and drainage construction, which comprises a bottom plate, supporting legs are fixedly connected to the outer surface of the bottom plate, limiting rods are fixedly connected to the tops of the supporting legs, and a fixing plate is fixedly connected to the tops of the limiting rods. The second motor serves as a power source to drive the whole transmission structure, under meshing of the worm and the worm gear, the rotating shell is driven to rotate, the rotating frame rotates at the same time, and therefore the fixing rod is driven to rotate around the fixing column, a pipeline is fixed through the positioning block, and the pipeline is fixed through the lifting mechanism. Through operation of the structure, the accuracy and firmness of pipeline fixing are driven, and therefore the beneficial effects that pipelines with different pipe diameters and shapes can be effectively positioned in the water supply and drainage construction, the pipelines are prevented from shaking or displacing in the construction process, and the construction accuracy and safety are guaranteed are achieved.

The invention relates to the technical field of prefabricated T-beam transportation, in particular to efficient prefabricated T-beam transferring supporting and pulling stabilizing equipment which comprises a base, a supporting mechanism, a jacking mechanism and a monitoring mechanism. The base is divided into four carrier plates of an equal structure in a cross mode, and the adjacent carrier plates can move relatively. The supporting mechanism comprises a base, a supporting seat and a hydraulic oil cylinder; a fastener is arranged on the carrier plate; the jacking mechanism comprises a mounting seat, a fixed plate, a movable seat, a second hydraulic cylinder and a jacking plate; the jacking mechanism further comprises a pressing piece. The pressing piece comprises a supporting cross beam, a third hydraulic cylinder and a pressing pad. The monitoring mechanism is used for monitoring fulcrum pressure and lateral clamping force of the prefabricated T-beam in real time and transmitting real-time monitoring data to the monitoring platform. The height of each supporting point can be accurately adjusted, clamping of preset force in the vertical direction and the horizontal direction is completed at the same time, the pressure of the supporting points and the lateral clamping force can be monitored in real time, the alarm function is provided, and the transportation efficiency and safety are greatly improved.

This utility model relates to the field of metal processing equipment technology, specifically disclosing a clamping device for blanking mold steel, including a base plate, a column, a lifting structure, a lifting plate, a translation structure, a bearing plate, and a clamping structure. A column is fixedly connected to the upper surface of the base plate, and a groove is formed on the side surface of the column. A lifting structure is installed inside the groove on the side surface of the column. A lifting plate is installed on one side of the column, and two grooves are formed on the upper surface of the lifting plate. A translation structure is installed inside the two grooves on the upper surface of the lifting plate. A bearing plate is installed above the translation structure, and an installation groove is formed on the upper surface of the bearing plate. A clamping structure is installed inside the installation groove on the upper surface of the bearing plate. By incorporating the column, lifting structure, lifting plate, and translation structure, the lifting structure drives the lifting plate to precisely adjust its height, and the translation structure enables the bearing plate to achieve horizontal displacement, ensuring that the mold steel is in a precise processing position, effectively improving blanking accuracy and reducing scrap rate.

The present invention relates to the technical field of soybean oil production, specifically to an oil scraping device for soybean oil production, including an oil tank, a support assembly, an adjustment assembly, an oil scraping assembly and a storage assembly, wherein the support assembly includes a support frame and legs, wherein the legs are arranged at the four corners below the support frame, and an oil tank with an upper opening is arranged below the support frame, wherein the oil tank is arranged between four groups of legs, and a rotating drum is driven by a motor, and structures such as positive and negative threaded screws, a slide plate, and a hinged rod in the rotating drum cooperate, and a handle is turned to drive a worm, and the worm is engaged with a worm wheel to drive the positive and negative threaded screws to rotate, so that the slide plate moves on the positive and negative threaded screws, thereby adjusting the height of the oil scraping frame in the oil scraping assembly, and the oil scraping frame is semi-cylindrical, and has a temporary storage cavity inside, and the input end of the temporary storage cavity is connected with the horizontal plane of the oil scraping frame extending into the oil tank, so that floating grease can be collected more effectively. The special design of the temporary storage cavity enables the grease to flow and discharge smoothly, thereby improving the efficiency and effect of oil scraping.

The invention discloses a three-coordinate measuring machine capable of processing soft materials, the three-coordinate measuring machine comprises a placing table, a measuring probe and a three-axis displacement assembly, the three-axis displacement assembly comprises a mounting panel, a mounting seat and a lead-in groove, the upper end of the measuring probe is provided with a lead-in block, and the mounting seat is internally provided with a pressing member. The device has the following advantages and effects: the three-axis displacement assembly can drive the measuring probe to realize three-axis position adjustment, the lead-in block on the measuring probe can upwards extend into the lead-in groove, and the lead-in block is automatically pressed by the pressing component, so that the pressing type fixation of the measuring probe is completed, and the stability is good; the probe is very convenient to mount, and the measuring probe is fixed without using bolts and matched tools, so that the mounting efficiency of the measuring probe is improved; meanwhile, the pressing component can be driven by an external power source to quickly relieve pressing type fixing of the measuring probe, convenience is provided for dismounting of the measuring probe, and the dismounting efficiency is optimized.

The utility model relates to injection mold technical field, concretely to a battery shell is with injection mold of easy demoulding, include: base, the top surface fixed mounting of base has the mould box, the mould box inside slide installation has the sliding board, the one side slide installation of base has first threaded block, the top surface fixed mounting of first threaded block has the fixed frame, first motor drives first threaded rod to rotate, first threaded block will slide on the base, and then drive fixed frame to move, make the mounting plate of fixed frame one side and the injection molding device of bottom surface adjust to the proper position above the mould box, second motor drives second bevel gear to rotate, because second bevel gear and first bevel gear are engaged, first bevel gear rotates along with and drive second threaded rod to rotate, and the second threaded block of second threaded rod outer wall screw installation will move up and down along the threaded rod, and the mounting plate fixed connection with second threaded block is just on the one side of fixed frame up and down slide, thereby the height of injection molding device is accurately adjusted.

The utility model discloses a building installation punching device capable of synchronously collecting sweeps. The building installation punching device comprises a base, and the top end of the base is fixedly connected with an installation frame; a collecting mechanism is arranged on one side of the mounting frame, and a lifting assembly is arranged in the mounting frame. Wherein the collecting mechanism comprises a mounting plate fixedly connected to one side of the mounting frame, a mounting pipe is fixedly connected to the interior of the mounting plate, an extrusion rod is slidably connected to the interior of one end of the mounting pipe, a first telescopic spring is mounted in the mounting pipe, and falling large chippings can be collected through a sliding box; and the toothed plate and the sliding box are clamped and fixed, so that the sliding box has the effect of being quickly mounted and dismounted, subsequent workers can conveniently clean scraps in the sliding box, and the phenomenon that the scraps fall on the ground and are inconvenient to clean by the workers can be effectively reduced.

The utility model discloses a printing and dyeing wastewater biodegradation treatment device with scrape slag structure, concretely relates to water treatment technical field, and includes the treatment pond, and the inside fixed setting of treatment pond has the filter plate, and the top of treatment pond is provided with fixed frame, and the inside of fixed frame is provided with scrape slag mechanism, and scrape slag mechanism includes the sliding block of sliding setting in the inside of fixed frame, and the top fixed setting of sliding block has first U -shaped frame, and the bottom fixed setting of first U -shaped frame has first scraper, and the both sides fixed setting of first scraper has the guide block, and the surface of treatment pond is provided with the guide groove, and the guide block is slidably connected with guide groove. The utility model discloses double scraper cooperation scrape slag, can remove water surface scum, can also push the filter residue on filter plate, realizes all -round dregs cleaning, and timely discharge dregs, creates good condition for aeration efficient oxygen supply and microorganism degradation, improves overall processing efficiency, and has practicality and economy.

The utility model discloses an automatic laser welding device, which belongs to the technical field of laser welding and is characterized by comprising a console, a control structure is bolted on the right side of the top of the console, a support structure is bolted on the left side of the top of the console, and the bottom of a mounting frame is bolted on the left side of the top of the console. The top of the mounting frame is in bolting connection with the bottom of a stabilizing table, the inner side of the stabilizing table is in bolting connection with the outer side of an adsorption disc, the bottom of the adsorption disc is in bolting connection with the top of a connecting pipe, the bottom of the connecting pipe is in bolting connection with the top of a vacuum pump, and the vacuum pump is arranged on the rear side of the control table. An existing conventional automatic laser welding device has some defects in cooperation of workpiece fixing and welding operation, part of conventional devices adopt mechanical clamps to fix welded workpieces, however, for workpieces with regular shapes, the clamps are complex to adjust.

The utility model relates to a dispensing machine which comprises a mounting plate and a first dispensing assembly arranged on the mounting plate and used for dispensing UV glue on a product; the second dispensing assembly is used for dispensing RTV glue on the product; the height adjusting assembly is mounted on the mounting plate, and the second adhesive dispensing assembly is mounted on the height adjusting assembly, so that adhesive outlet heads of the first adhesive dispensing assembly and the second adhesive dispensing assembly are arranged at the same horizontal height. According to the glue dispensing device, the two glue dispensing assemblies are arranged, the two glue dispensing assemblies are used for dispensing different types of glue, and when the product needs to be dispensed with two types of glue, the product does not need to be switched between the two glue dispensing assemblies, so that the working efficiency is improved, the manpower is saved, and the production cost is reduced. By arranging the height adjusting assembly, the height of the second dispensing assembly can be accurately adjusted, so that the height of a dispensing head of the second dispensing assembly is the same as that of a dispensing head of the first dispensing assembly, and a good synchronous dispensing effect can be guaranteed.

The utility model discloses a novel garden ladder for garden maintenance belongs to garden maintenance technical field. Including a pair of first vertical rod, a pair of first vertical rod between being connected with a plurality of first crosspieces, the lateral surface of a pair of first vertical rod is provided with the sliding slot, the inside of sliding slot all slides second vertical rod, and a plurality of second crosspieces are connected between second vertical rod, and the side of second vertical rod in mutual separation all is equipped with the rack, and the side of connecting sleeve all is equipped with the rack in the mutual separation of first vertical rod, and the inside rotation of connecting sleeve is connected with the gear, and the gear and rack are engaged connection, and the side rotation of connecting sleeve is connected with the pivot, and the pivot and gear rotation are connected, and the free end of pivot is equipped with the handle of rotating, and the outside of pivot is equipped with the fixed part, and the fixed part is used for locking the rotation of pivot, and this application can reach the purpose of stepless regulation forest ladder height for novel garden ladder for garden maintenance.

The utility model relates to an operating frame for building construction, which comprises four supporting columns, the supporting columns are of a rectangular structure, the supporting columns extend in the vertical direction, a cross rod is fixedly connected between every two adjacent supporting columns in the front-back direction, each supporting column comprises a scaffold vertical rod located at the bottom, and the scaffold vertical rods are fixedly connected with the supporting columns in the vertical direction. Supporting rods are inserted into the scaffold vertical rods, connecting sleeves are arranged at the tops of the supporting rods, the supporting rods are sleeved with the connecting sleeves, limiting blocks are arranged on the supporting rods, the limiting blocks are used for limiting the positions of the connecting sleeves on the supporting rods, and a connecting rod is arranged between the two connecting sleeves arranged front and back. A supporting plate is arranged between the two connecting rods; the detachable inclined strut structures which are arranged in an X shape in a crossed mode are arranged between every two adjacent supporting columns, the inclined strut structures are used for fixing the two adjacent supporting columns in the left-right direction, and therefore the supporting columns can be further reinforced, and stability of the operation frame is guaranteed.

The utility model relates to the technical field of tire performance testing, in particular to a tire puncture resistance testing device, which comprises a bottom plate, four groups of support columns, a top plate, a plurality of rows of puncture mechanisms, a position adjusting mechanism, a moving mechanism, a lifting mechanism, a lifting plate and a mounting mechanism, and is characterized in that the four groups of support columns are connected with the top end of the bottom plate, and the top plate is connected with the top ends of the four groups of support columns; the position adjusting mechanism is installed at the bottom end of the top plate, the moving mechanism is installed at the bottom end of the position adjusting mechanism, the lifting mechanism is installed at the bottom end of the moving mechanism, and the lifting plate is connected with the bottom end of the lifting mechanism. The multiple rows of puncture mechanisms are arranged and mounted at the top end of the bottom plate, the multiple rows of puncture mechanisms are used for testing tires of different specifications and types, and each of the multiple rows of puncture mechanisms comprises a fixing plate and multiple groups of puncture needles. The utility model provides a tire puncture resistance testing device, and aims to solve the problems of inconvenience in operation, inaccurate testing result, poor universality and the like of a tire puncture resistance testing device in the prior art.

This utility model relates to the technical field of tea garden pruning machines, specifically, to a tea garden contour pruning machine with an arc-shaped blade assembly. It includes a crossbeam plate, on which two first hydraulic cylinders are fixedly mounted. Guide rails are mounted at the ends of the telescopic shafts of the two first hydraulic cylinders. Second hydraulic cylinders are fixedly mounted at the ends of the guide rails. An arc-shaped plate is mounted on the telescopic shaft of the second hydraulic cylinder. A lower panel is located at the center of the lower center of the arc-shaped plate. The lower panel is fixed to the arc-shaped plate by two fixed rods. Multiple side hinge plates are provided on both sides of the lower panel. The side hinge plates are hinged to the lower panel and to adjacent side hinge plates. The side hinge plates are angle-adjustable by a third hydraulic cylinder. Drive motors are fixedly mounted on both the lower panel and the side hinge plates. A short shaft is fixedly mounted at the end of the output shaft of the drive motor, and a set of pruning blades is mounted on the short shaft. This utility model effectively improves the adaptability of pruning and is convenient to use.