14results about How to "Precise length control" patented technology

The utility model relates to an aquaculture mesh cage depth adjusting device, and belongs to the technical field of aquaculture. The device comprises a cable take-up and pay-off mechanism arranged on a ship body, and a hoist rope connecting the cable take-up and pay-off mechanism and a culture net cage, wherein the cable take-up and pay-off mechanism controls the depth position of the culture net cage in seawater by tightening or loosening the hoist rope. The utility model provides a depth adjusting device for an aquaculture mesh cage, and aims to meet the requirements of cultured organisms in different seasons and environmental conditions by accurately controlling the depth of the aquaculture mesh cage in the sea, so that the culture efficiency and the product quality are improved. Specifically, by tightening or loosening the hoist rope, the aquaculture mesh cage can be adjusted to be located in water bodies of different depths, and then the growth environment of cultured organisms is adjusted.

The guide device comprises a device frame, two winding mechanisms are arranged in the device frame, and two guide positioning mechanisms are symmetrically arranged on the same side wall of the device frame up and down; the two guiding and positioning mechanisms correspond to the two winding mechanisms one to one and are located on the wire outlet sides of the steel wire ropes corresponding to the winding mechanisms, the ends, away from the winding mechanisms, of the steel wire ropes are provided with connecting and limiting assemblies, and the two winding mechanisms synchronously wind and unwind the steel wire ropes so that floating-state installation of the blades can be completed. Double-rope synchronous traction can be accurately controlled, rapid standardized connection of the steel wire rope and the blade is achieved, the installation process is simplified, and safety is improved.

The utility model belongs to the technical field of glass thickness detection tools, and particularly relates to a glass thickness detection tool which comprises a main body, a first measuring structure fixedly arranged at the central position of the upper end face of the main body, and a placing structure clamped at the central position of the main body. The measuring structure II is clamped at one side of the center of the main body; the protection plate is fixedly arranged in the center of one side of the main body; the rubber pad is fixedly arranged in front of the lower end surface of the main body. Through the design of the placing base and the placing plate, the object placing process is more stable and reliable, the placing plate is fixed to the center of the upper end face of the placing base, and the structure can provide a flat and stable supporting face for the placed object; the pressure relief groove in the center of the upper end face of the placement plate can prevent an object placed on the pressure relief groove from damaging the placement structure or the object due to internal pressure change, the protection effect is achieved, and the flexible pad can avoid abrasion or damage caused by direct hard contact between the object and the placement plate.

The utility model relates to the technical field of animal experiment instruments, in particular to a visual small animal lung drug delivery device which comprises a body and a flaring device detachably arranged at the front end of the body, and a visual channel and a drug delivery channel are arranged on the body. The flaring device is of a telescopic corrugated pipe structure, and the whole flaring device is conical. A first channel and a second channel which are through are formed in the flaring device in the length direction of the flaring device, the first channel is communicated with the visual channel, and the second channel is communicated with the drug delivery channel. The flaring device is arranged to be of a telescopic corrugated pipe structure, in the actual use process, an operator can accurately control the expansion degree and the overall length of the flaring device according to different kinds of small animals, the universality of the dosing device to different experimental animals is greatly improved, and the dosing device is convenient to use. Operation difficulty and experimental errors caused by mismatching of the flaring device are reduced, and the technical problem that an existing flaring device of a fixed structure cannot be adjusted according to oral cavities of different types of small animals is solved.

The utility model belongs to the technical field of automatic equipment, and particularly relates to automatic spring connecting wire production equipment, which comprises a straightening device for straightening a wire, a rear stripping device and a front stripping device for stripping two ends of the wire, and a wire cutting device arranged between the rear stripping device and the front stripping device, the left side of the front stripping device is provided with a front wire clamping device capable of moving back and forth and left and right, the front wire clamping device moves left and right to pull out a wire, a tin soldering device is arranged behind the wire cutting device, the front wire clamping device and the front stripping device synchronously move backwards, and the front stripping device transfers one end of the wire into the tin soldering device. A spring clamping device is arranged behind the tin soldering device, a feeding device for conveying springs and rubber rings is arranged on the left side of the spring clamping device, and a ring sleeving device is arranged between the feeding device and the front money clamping device. Through the arrangement of the components, the full-automatic production of the spring connecting line is realized.

The utility model discloses alkali noodle fixed-length cutting-off equipment which comprises a bottom plate, a supporting table and a cutting blade, the supporting table is fixedly supported above the bottom plate through two symmetrically-arranged vertical plates, a conveying belt is installed on the inner side of the supporting table, a U-shaped frame is installed in the middle of the supporting table on the conveying belt, and the cutting blade is installed on the U-shaped frame. A cutting air cylinder is installed at the top of the U-shaped frame, and a protective box body is installed on the portion, above the conveying belt, of the supporting table on one side of the U-shaped frame. The protective box body is arranged, the air inlet and the air outlet are formed in the top of the box body, and a closed cutting environment is formed in cooperation with the air inlet fan and the exhaust fan. And polyester fiber filter cotton, a glass fiber filter element and an activated carbon adsorption layer are sequentially arranged in the filter box on the outer side of the air inlet, so that dust and impurities in the air can be effectively filtered, and the air entering the protective box body is ensured to be clean. By means of the design, the noodles are prevented from being polluted in the cutting process, and the hygienic standard of products is improved.

This invention relates to the field of CNC machining technology, and is an auxiliary device and method for ensuring accurate and rapid installation of cutting tools onto an angle head. It can be widely applied to the installation of angle head cutting tools in machining processes such as equipment manufacturing. The device is easy to operate, has high tool installation efficiency, and provides accurate tool length control; the positioning block is replaceable, making it suitable for installing cutting tools of different specifications on the same type of angle head.

The utility model relates to the technical field of metal door and window processing, and discloses a metal door and window processing and cutting device which comprises a processing table, a feeding channel used for limiting the moving direction of a sealing rubber strip is arranged on the table top of the processing table, and a moving limiting assembly located at the discharging end of the feeding channel is arranged on the table top of the processing table. The moving direction of the moving limiting assembly is the same as the feeding direction of the feeding channel, the moving limiting assembly is used for controlling the cutting length of the sealing rubber strip, the moving limiting assembly is arranged and matched with the graduated scale and the pointer, accurate control over the length of the sealing rubber strip is achieved, manual measurement errors are eliminated, it is ensured that the cutting size is matched with the height of a door and window frame, and the cutting efficiency is improved. The cutting assembly is further arranged, it is guaranteed that a notch is smooth and free of burrs while the sealing rubber strip is cut, and therefore the installation adaptability of the sealing pressing strip is remarkably improved, meanwhile, the pressing piece is further arranged, the sealing rubber strip is synchronously fixed in the cutting process, and notch deviation caused by displacement is avoided.

The utility model discloses a straw fiber length grading control cutting machine, which relates to the technical field of cutting machines and comprises an operation table, a feeding mechanism is mounted at the top of the operation table, a cutting mechanism is mounted at the top of the operation table, and the cutting mechanism is positioned in front of the feeding mechanism and extends to the bottom of the operation table. A length control mechanism is mounted on the front side of the operation table; through cooperation of the feeding mechanism, the cutting mechanism and the length control mechanism, the length of cut straw particles can be accurately controlled, the cut length of straw can be flexibly adjusted by adjusting the position of a limiting plate in the length control mechanism, and compared with a traditional cutting machine which cannot control the cutting length, the cutting machine is very convenient to use.

This invention relates to a thermo-responsive nanocarrier based on a biomass core, its preparation method, and its applications. First, using hydroxyl-containing biomass materials such as cyclodextrin and cellulose nanocrystals as a core, a macromolecular initiator with ATRP initiating groups modified on its surface is prepared through an acylation reaction. Then, the macromolecular initiator is mixed with thermosensitive monomers such as N-isopropylacrylamide for ATRP polymerization to obtain a thermo-responsive nanocarrier. Next, the thermo-responsive nanocarrier is blended with functional reagents such as antibacterial agents to obtain a supported thermo-responsive nanocarrier. Finally, the supported thermo-responsive nanocarrier is mixed with a matrix material such as textile fibers to obtain a supported thermo-sensitive functional material. The preparation method of this invention has the advantages of simple process, green and controllable characteristics, and the obtained thermo-responsive nanocarrier can be widely used in the field of functional materials in light industries such as textiles, leather, and footwear, endowing related products with various intelligent properties.

The utility model relates to the technical field of coating die heads, and discloses a coating die head with adjustable coating length, which comprises a lower die head, an upper die head is arranged on the top side of the lower die head, a positioning sliding rod is fixedly connected to the top side of the lower die head, a liquid tank is arranged on the top side of the lower die head, a sliding rod is fixedly connected to the inner wall of the liquid tank, and the sliding rod is fixedly connected to the inner wall of the liquid tank. And a baffle is slidably connected to the outer wall of the sliding rod, a sliding groove is formed in the middle end of the top side of the baffle, an ejection block is slidably connected to the inner wall of the sliding groove, a positioning groove is formed in the bottom side of the upper die head, and the middle end of the baffle is connected with the ejection block through an elastic assembly. According to the utility model, the length of the slit between the lower die head and the upper die head is flexibly adjusted by adjusting the position of the baffle plate, matching the spring with the positioning groove and inserting the I-shaped inserting shaft with the T-shaped groove. And meanwhile, by means of the positioning function of the positioning sliding rod and the I-shaped inserting shaft, the die head gasket can be conveniently and accurately installed and replaced, the maintenance time is shortened, and the labor intensity is relieved.

The utility model discloses a cable laying device for building electromechanical installation belongs to cable laying field, including mobile seat, be provided with rotating mechanism on mobile seat, and rotating mechanism includes reel, and the both sides fixed reel both -end fixed connection of mobile seat has the pivot, and the pivot rotation is connected in mobile seat, and be provided with locking mechanism mobile seat on mobile seat and be provided with locking mechanism, and locking mechanism includes installation box, and installation box fixed connection is in mobile seat one side. Advantageous effect lies in: set up locking mechanism and adjusting mechanism, cooperate through the locking hole that sets up on the locking disc with the insertion rod that sets up on the installation box activity, make insertion rod can stop the rotation action of reel, and through the setting of adjusting mechanism, make staff every time can carry out the laying operation of fixed length cable, and reset action is simple, and through the scale can accurate control the cable length that lays every time, convenient to use.

The utility model discloses a kind of silt ground stratum deep foundation pit support structures, including baffle, adjusting assembly is provided between two described baffles, and the top of one of described baffles is fixedly installed with L-shaped plate, one side of the L-shaped plate is fixedly installed with driving motor, the output of the driving motor is fixedly installed with winding wheel, the inner wall of the L-shaped plate is rotatably connected with the winding wheel, and the outer end of the winding wheel is wound with measuring scale;The silt ground stratum deep foundation pit support structure is provided with driving motor, winding wheel, measuring scale and counterweight, driving motor is responsible for driving winding wheel rotation, and then realizes the winding operation of measuring scale, by adjusting, the length of measuring scale can be accurately controlled, the effect of counterweight is to make measuring scale vertically move downwards, to facilitate the depth of silt ground stratum deep foundation pit measurement, this process greatly facilitates staff to carry out later construction, and expand the application range of silt ground stratum deep foundation pit support structure.