12results about How to "Keep tight" patented technology

The utility model discloses a multifunctional firework lead twisting device, and relates to the technical field of ammunition. A multifunctional firework lead twisting device comprises a base and a supporting plate, a tensioning device is arranged on the supporting plate and comprises a sliding seat, a fixed mounting block, a rotary mounting block and a second hydraulic telescopic rod, the supporting plate is fixedly mounted on the upper surface of the base, and the fixed mounting block is fixedly connected to the outer wall of the rear end of the supporting plate. The outer wall of the lower end of the rotary mounting block is rotationally connected with the interior of the upper end of the fixed mounting block, a second hydraulic telescopic rod in the tensioning device stretches out and draws back to drive a movable block to move, a movable rod is made to rotate, then a supporting frame is pushed to move, the position and angle of a guide frame are adjusted, and proper tension is applied to a lead. The device ensures that the lead is kept in a tight state in the twisting process, thereby avoiding the phenomena that the thread rope is easy to loosen and wind in the releasing process, the lead is not uniform in twisting degree and even loose, and the practicability and flexibility of the device are reduced at the same time.

This utility model relates to the field of battery cell technology and discloses a novel soft-pack PACK structure, including a housing. A cover is fixedly connected to the outer wall of the housing, and a sealing ring is fixedly connected to the inner wall of the cover. A support is installed inside the housing, and an epoxy board is fixedly connected to the outer wall of the support. Copper-aluminum composite busbars are installed on the left and right outer walls of the epoxy board, with threaded rods threaded into the interior of the copper-aluminum composite busbars. An aluminum busbar is fixedly connected inside the epoxy board, and a pressure strip is provided on the outer wall of the aluminum busbar. In this utility model, the housing and cover house the battery cells to protect them from external impact damage. An epoxy board is placed on the side of the support, and then an aluminum busbar is installed inside the epoxy board. A pressure strip is then fixed to one side of the aluminum busbar, and a data acquisition line is placed between the pressure strip and the aluminum busbar. This achieves the effects of ensuring battery cell overcurrent, welding strength, and stable data acquisition.

This utility model relates to the technical field of waterproof material production equipment, specifically to an integrated online quality monitoring and defect early warning device. It includes a lower panel and an upper frame positioned above the lower panel. Industrial cameras are mounted on the adjacent sides of both the lower panel and the upper frame. Two sets of vertical plates are fixedly mounted on the upper surface of the lower panel, with conveying rollers positioned between the two vertical plates in each set. The conveyed material passes through these rollers. Tensioning components are fixedly mounted on the adjacent sides of both the lower panel and the upper frame. Each tensioning component includes a support beam and an electric push rod positioned on one side of the support beam. A rectangular sleeve is mounted on the top of the support beam. A U-shaped frame is detachably connected to the end of the telescopic shaft of the electric push rod. The U-shaped frame is located within the rectangular sleeve and slidably connected to it. Tensioning rollers are rotatably connected between the front and rear plates of the U-shaped frame via a rotating shaft. This utility model facilitates the conveying and tensioning of the rolled material, promoting smooth monitoring.

This invention provides a water diversion irrigation channel, relating to the field of irrigation technology, comprising: a steel-constructed channel body, the main body of which is a cylindrical structure with an open top, and a limiting plate fixedly installed inside the opening; a check valve plate, hinged inside the steel-constructed channel body, with an integrally formed counterweight at the bottom rear side, and the top rear side of the check valve plate contacting the limiting plate; a suction cylinder and a rotating arm, providing a drainage structure for quick positioning and assembly. The suction cylinder naturally swings with the up-and-down movement of the float, ensuring that the float preferentially draws water from the surface; the rotating arm is rotated upwards, and a spring locking block engages in a triangular slot to fix the direction of the rotating arm, and then an H-shaped pipe is installed, ready for pumping. Installation is convenient, and both the suction cylinder and the rotating arm maintain conveying and sealing during rotation, solving the problem of pipes easily deviating during use in existing channels.

The utility model relates to curtain wall technical field especially relates to a kind of aluminium alloy door and window curtain wall sealing structure.Its technical scheme includes:one kind of aluminium alloy door and window curtain wall sealing structure, including curtain wall board, sealing element is installed between the curtain wall board, the sealing element is equipped with framework, the top of the framework is equipped with second sealing pad, the bottom of the framework is equipped with sealing strip, water baffle is opened in the sealing strip, flexible support column is inserted in the water baffle, the first sealing pad is connected in the framework by water baffle.The utility model is simple and easy to understand, and installation process is convenient and fast, without complex tool and operating procedure.Sealing element is connected tightly and firmly between each component, and it is not prone to loosening or falling off, reduce maintenance cost and difficulty.When needing to replace or repair sealing structure, only corresponding component can be disassembled, without large-scale modification to entire curtain wall.

This invention relates to the field of optoelectronic detection equipment, specifically an improved industrial optical fiber structure with adjustable transmission band and filtering function. To achieve the above objectives, the invention employs the following technical solution: it comprises an optical fiber head, a first optical fiber, a second optical fiber, a filtering component, and a third optical fiber; the first and second optical fibers are inserted into the optical fiber head from the left side to its left end face to form an optical path entrance; the second optical fiber continues to be inserted into the filtering component from the right; the third optical fiber is inserted into the filtering component from the right side and optically connected to the second optical fiber at the filter, completing the optical path transmission; by introducing a replaceable filter component into the optical fiber path, the optical fiber itself possesses filtering function, eliminating reliance on terminal equipment for band selection and significantly enhancing the flexibility of band selection; simultaneously, it achieves a glue-free, reusable connection method, improving maintenance efficiency and component reusability.

The utility model discloses an anti-deformation rubber sealing element, which belongs to the technical field of rubber sealing elements and comprises an outer protective layer, connecting rings are fixedly connected to two ends of the inner wall of the outer protective layer, reinforcing frames are fixedly connected to the peripheries of opposite surfaces of the connecting rings at the two ends, and thickening components are fixedly connected to the inner peripheries of the opposite surfaces of the connecting rings at the two ends. Clamping grooves are formed in the opposite faces of the connecting rings at the two ends, and widening assemblies are clamped in the clamping grooves; through cooperative use of the devices, the thickening assembly and the reinforcing frame, the supporting performance of the middle structure of the sealing element can be improved, so that the compression resistance and the deformation resistance of the middle structure are enhanced, deformation caused by pressure or temperature changes in the using process is effectively reduced, the original shape and the sealing performance of the sealing element can be kept, and the service life of the sealing element is prolonged. The stability and reliability of the sealing effect are ensured, and through the combined arrangement, the single structure of the sealing piece can be conveniently and rapidly disassembled and independently replaced.

The utility model discloses a non-contact installation flange liquid level transmitter which comprises an ultrasonic liquid level transmitter, the ultrasonic liquid level transmitter is connected with an adapter through threads, the lower portion of the adapter is connected with a connecting pipe, the upper portion of the adapter is in flange connection with a widening plate, the lower portion of the widening plate is provided with a hydraulic damping rod, and the hydraulic damping rod is connected with the connecting pipe. The lower portion of the hydraulic damping rod is fixedly connected with an arc-shaped plate, and the outer side of the ultrasonic liquid level transmitter is sleeved with a sleeve. And by arranging the hydraulic damping rods, the arc-shaped plates and other structures, vibration generated when fluid passes through can be effectively absorbed, and the problem of connection looseness or leakage caused by vibration is solved. According to the ultrasonic liquid level transmitter, the stability and the sealing performance can be better kept in the long-time use process, so that the measurement precision is improved, the bent rod penetrates through the rectangular hole and is fixed through the locking bolt, it is guaranteed that the ultrasonic liquid level transmitter cannot fall off due to rotation or other external force in the operation process, and the safety and the reliability of equipment are improved.

The utility model relates to bitumen sampling technical field discloses a kind of bitumen sampling device, it includes barrel, plugging assembly and hook assembly;Barrel inside is provided with the storage cavity for storing bitumen, the bottom end of storage cavity is provided with first opening, the top of storage cavity is provided with second opening;Plugging assembly is set in storage cavity, and plugging assembly is located at the bottom end of storage cavity, and plugging assembly is along the length direction of storage cavity sliding for plugging first opening;Hook assembly includes first hook and second hook, first hook is set in the bottom end of storage cavity, and both ends of first hook are rotatably connected with the outer wall of storage cavity, second hook is set in the top of storage cavity, and both ends of second hook are arranged in the outer wall of storage cavity.

This invention relates to the field of NdFeB internal mixing technology and discloses a MIM NdFeB sieving internal mixer, including a mixing cabinet with a mixing chamber and a feeding chamber. An additive cylinder and an active metal cylinder are installed in the feeding chamber, and a feeding channel is provided inside the feeding chamber, located below the additive and active metal cylinders and inclined towards the mixing chamber. A vacuum feeding device is provided on one side of the mixing cabinet, and a feeding space is provided below the mixing chamber, connected to the mixing chamber. A vacuum feeding channel is provided between the vacuum feeding device and the feeding space. The mixed material is transferred to the vacuum feeding device through the vacuum feeding channel. By pre-loading the additive into the additive cylinder and adding the active metal into the active metal cylinder of the device, the sealing and continuity of the addition environment are maintained, improving the internal mixing efficiency of NdFeB permanent magnets and reducing the oxidation waste rate of NdFeB powder.

The present application relates to the technical field of pedestrian bridge ground cover, specifically to a pedestrian bridge ground cover paint spraying handrail anti-pollution device, comprising: a protective baffle, a second guide groove, a second guide rod, a connecting bottom block, a connecting clamping groove, a connecting clamping block, a protective clamping piece and a range increasing component; beneficial effects are that: the protective baffle is placed on the outer side above the bridge handrail and the ground cover connection, then the handrail is clamped and protected by the protective clamping piece, then in the spraying construction of the municipal landscape bridge ground cover and the handrail and ground cover connection part, the bridge handrail is prevented from being polluted, the limiting plug is pulled out from the inside of the connecting bottom block by pulling the handle, and the limiting plug is separated from the connecting bottom block by the anti-dropping rope house, the protective clamping piece is disassembled by separating the connecting clamping block from the connecting clamping groove, different protective clamping pieces are convenient to replace, and different sizes of handrails are adapted.