30results about How to "Fixed connection tight" patented technology

The invention relates to a test device for the three-dimensional static rigidness of a tail end of a machine too. A power device adopts a hydraulic device with high rated load, a transmission device adopts a cylinder-type linear guide-rail pair structure which is high in transmission efficiency and reliable in structure, the structure is simple and compact, the force transmission efficiency is high, the loading process is smooth and stable, and a force transferring device is flexibly connected to the tail end of the machine tool through a spring, so that the additional displacement and the additional load formed by the external interference can be effectively absorbed, and the tail end structure of the machine tool can be effectively protected. A control system of the test device for the three-dimensional static rigidness of the tail end of the machine tool can automatically control the whole process of the loading, measurement and static rigidness calculation, is friendly to the interface and precise in control. The invention relates to a test method for the three-dimensional static rigidness of the tail end of the machine tool, the three-dimensional loading is realized by adopting a single-direction loading mechanism to be matched with the revolving function of the machine tool, the whole test process is controlled by adopting a control system device and the control system, the method is simple in operation, and the measurement precision is high.

The invention relates to the technical field of radio frequency connectors, in particular to a fixed type radio frequency coaxial connector. The coaxial connector is mainly composed of a male seat, afemale seat, a fixed rod arranged on the male seat and a fixed tube arranged on the female seat, wherein the male seat is inserted into the female seat; the fixed rod is arranged on the periphery of the male seat in a surrounding mode; and the fixed tube is arranged on the periphery of the female seat in a surrounding mode. After the structure is adopted, the fixed rod and the fixed tube are matched, so that the radio-frequency coaxial connector is tightly and fixedly connected, the high contact of the radio frequency coaxial connector is ensured, and the quality and the efficiency of the transmission signals are improved.

The invention relates to an ecological garden rainwater collection and storage system and a construction method thereof, and belongs to the technical field of rainwater collection systems. The ecological garden rainwater collection and storage system comprises a drainage ditch, a plurality of cover plates, drainage sealing structures and drainage sealing assemblies; the drainage ditch is formed ina road surface; the plurality of cover plates are used for sealing the drainage ditch; the drainage sealing structures are arranged on the cover plates, and each drainage sealing structure comprisesa water leakage channel which is formed in the cover plate and penetrates through the cover plate; the drainage sealing assemblies are installed on the cover plates and can form U-shaped drainage channels between the water leakage channels and the drainage ditch, and the drainage sealing assemblies are arranged below the cover plates; and the drainage sealing assemblies on the adjacent cover plates are connected into a whole capable of forming the U-shaped drainage channel only between the water leakage channels and the drainage ditch. The ecological garden rainwater collection and storage system has the effect of reducing the probability that odor or mosquitoes in the drainage ditch are emitted to the position above the cover plates from the interior of the drainage ditch.

The invention provides a knee plate of a jaw crusher. The jaw crusher comprises a rack, an upper protecting plate, a lower protecting plate, a fixed jaw assembly, a movable jaw assembly, an eccentricwheel, the knee plate, an adjusting seat and a spring pull rod. The lower end of the fixed jaw assembly is connected with the spring pull rod; the spring pull rod is backwards connected to the rack through a spring; a fixed jaw plate is arranged on the fixed jaw assembly, and a movable jaw plate is arranged on the movable jaw assembly; a buffer structure is arranged between the fixed jaw plate andthe fixed jaw assembly, and a buffer structure is arranged between the movable jaw plate and the movable jaw assembly; a plurality of teeth are parallelly arranged on the fixed jaw plate and the movable jaw plate correspondingly; a screening device is further arranged above the movable jaw assembly and the fixed jaw assembly; the lower end of the movable jaw assembly is connected with the front end of the knee plate, and the rear end of the knee plate is connected with the adjusting seat; the adjusting seat is connected to a rack; abrasion resistant bodies are arranged at the two ends of theknee plate; and the knee plate and the abrasion resistant bodies are fixedly connected, and the ends, away from the knee plate, of the abrasion resistant bodies are in circular arc shapes. The knee plate of the jaw crusher is convenient to use, easy to machine, uniform in crushing, high in crushing efficiency, low in cost, resistant to abrasion and long in service life.

The invention discloses an automobile gear shifting handball convenient to disassemble and assemble. The automobile gear shifting handball comprises a handball body and a gear shifting rod, a T-shaped connecting sleeve is embedded in the handball body, the connecting sleeve is composed of an inner threaded pipe and a limiting baffle at the upper end of the inner threaded pipe, vertical clamping grooves are formed in the inner walls of the two opposite sides of the inner threaded pipe, and a vertical limiting insertion plate is inserted into the inner threaded pipe. The two sides of the limiting insertion plate are inserted into the clamping grooves in the two sides of the inner threaded pipe correspondingly, and a first vertical magnetic strip and a second vertical magnetic strip are fixed to the two sides of the limiting insertion plate correspondingly and inserted into the clamping grooves in the two sides of the inner threaded pipe correspondingly. The upper portion of the gear shifting rod is connected into the inner threaded pipe in a threaded mode, a limiting inserting groove is formed in the upper end of the gear shifting rod, and the limiting insertion plate is inserted into the limiting inserting groove of the gear shifting rod. By means of the automobile gear shifting handball, the gear shifting rod on the gear shifting handball and the handball body can be tightly and fixedly connected, the handball body can be effectively positioned and cannot rotate, and meanwhile the handball body and the gear shifting rod can be conveniently disassembled and assembled.

The invention relates to the technical field of water boiling, in particular to a glass kettle and a mounting and fixing method of a handle thereof. The glass kettle is characterized in that a first circular truncated cone and a second circular truncated cone are arranged at the lower part of a kettle body; middle rubber sleeves the outer side of the first circular truncated cone; the shell is clamped on the middle rubber; a supporting plastic part is sleeved and fixed on the second circular truncated cone; a glue box is fixedly installed on the lower portion of the supporting plastic part; the lower portion of the glue box is fixedly connected with a base plate; a hole is formed in the shell on the outer side of the glue box; a knob assembly is installed at the hole; a connecting piece isprovided with a bayonet; the bayonet is clamped on the knob assembly; the connecting piece is arranged between the shell and the supporting plastic part; and the handle penetrates through the shell to be fixed on the connecting piece. The heat insulation effect between the handle and the kettle body is good, and the installation process is simple, and the whole product can be assembled only through screw fixation.

The application relates to an ecological garden rainwater collection and storage system and its construction method, belonging to the technical field of rainwater collection systems, wherein the ecological garden rainwater collection and storage system includes a drainage ditch opened on the road surface, and also includes a A plurality of cover plates of the gutter; also includes a drainage sealing structure arranged on the cover plate, the drainage sealing structure includes a water leakage channel opened on the cover plate and passing through the cover plate, and also includes a water leakage channel on the cover plate The installed drainage sealing assembly capable of forming a U-shaped drainage channel between the leakage channel and the drainage ditch, the drainage sealing assembly is arranged under the cover plate, and the drainage sealing assembly on the adjacent cover plate is connected It is an integral body capable of forming a U-shaped drainage channel only between the leakage channel and the drainage ditch. The present application has the effect of reducing the probability of odor in the gutter or the probability of mosquitoes emitting from the gutter to the top of the cover plate.

The invention discloses a quick connector, which comprises a connector body, a water outlet connector, and small and big detachable clamping rings mounted on the connector body and the water outlet connector respectively. The water outlet connector is inserted in the back end of the connector body by extruding an elastic side wing of the small clamping ring on the water outlet connector, and the elastic side wing of the small clamping ring is embedded in a hole on the back end of the connector body due to outwardly extended elasticity thereof, so that the water outlet connector is fixedly connected with the connector body in tight manner. An elastic side wing of the big clamping ring is pressed, and a pressing block on the elastic side wing of the big clamping ring is greater in thicknessthan the connector body, so that the elastic side wing of the small clamping ring will be pressed down to drag the water outlet connector so as to separate the connector body from the water outlet connector. Because the small and big clamping rings are both in C ring structures, the small and big clamping rings can be conveniently detached from the connector body and the water outlet connector soas to be conveniently repaired and replaced. The invention also discloses a connecting method using the quick connector.

The invention discloses an Internet of Things information conversion box. The Internet of Things information conversion box comprises a connecting convex block, a sink embedding slot, an information insertion end plate, an opening and closing rotating shaft, a heat dissipation box and a threading hole; the sinking embedding groove is arranged above the connecting convex block; the opening and closing rotating shaft is installed at the outer side of the information insertion end plate; and the threading hole is arranged at the outer side of heat dissipation box. The structure of the Internet ofThings information conversion box is scientific and reasonable, and the use is safe and convenient; the connecting convex block is arranged to make the connection between the box body and the external connecting component more tightly fixed; the information insertion end plate is arranged to facilitate the access and conversion of information in the Internet of Things; the opening and closing rotating shaft is arranged to facilitate the opening and closing of the information insertion end plate; the arranged heat dissipation box can eliminate the heat generated in the inner part of the box body in time and prevent the heat from burning the inner parts of the box body; and the arranged threading hole is convenient for the connection of external wires and prevent the disorder phenomenon ofwires when the wires are connected.

The invention discloses a parallel clamping manipulator device, which is characterized in that the manipulator is composed of a fixing seat, an electric cylinder, a hinge four-bar mechanism, a slidingblock, a slide way body and a clamping plate. The manipulator clamping plate can parallelly move and clamp in the slide way. The mechanical arm is accurately positioned after an order is received. The screw of the electric cylinder moves back and forth in the travel range to drive the hinge four-bar mechanism (parallelogram mechanism). The two adjacent links can be kept parallel at all times andthe angular displacement, angular velocity and angular acceleration of the two adjacent links are always equal, as to realize the parallel and stable movement and to drive the slide block to move in parallel on the slide rail, thus realizing the parallel opening and closing of the clamping plate and achieving the purpose of clamping and placing.

The invention relates to a non-metallic insert slotted nut. The non-metallic insert slotted nut includes a nut body and a non-metallic insert embedded in the countersunk hole of the nut body. The opening corresponding to the end of the counterbore hole forms a flared structure. After the non-metallic insert is embedded in the nut body, the side wall of the counterbore hole on the nut body is folded inward to form a flanging, and the flanging is press-fitted on the non-metallic nut body. The inner conical surface of the insert increases the pressing contact area between the nut body and the non-metallic insert in the circumferential direction, and reduces the probability of the non-metallic insert turning or coming out during the nut installation process, and the flange can also be radially Restrict the inward deformation of the non-metallic insert, and reduce the probability of the non-metallic insert coming out of the nut body during the nut slotting process.

The invention relates to a construction method for installing an indoor keel, comprising a positioning device, an installation device and a connecting device. The upper end of the positioning device is equipped with an installation device. , mercury, rotating column, hollow ball, circular plate, turret and telescopic support, the installation device includes arc-shaped long plate, support plate, roller and fixed plate, the present invention makes the keel not be affected by the installation site through the positioning device The limit of the keel is always parallel to the horizontal plane, so as to prevent the installation site from affecting the keel installation during the installation process and reduce the difficulty of installation. The keel is installed and positioned through the installation device, and the keel is connected to the boom through the connecting device. At the same time, the keel Under the action of gravity, it is fixedly installed with the boom.

The invention relates to a test device for the three-dimensional static rigidness of a tail end of a machine too. A power device adopts a hydraulic device with high rated load, a transmission device adopts a cylinder-type linear guide-rail pair structure which is high in transmission efficiency and reliable in structure, the structure is simple and compact, the force transmission efficiency is high, the loading process is smooth and stable, and a force transferring device is flexibly connected to the tail end of the machine tool through a spring, so that the additional displacement and the additional load formed by the external interference can be effectively absorbed, and the tail end structure of the machine tool can be effectively protected. A control system of the test device for the three-dimensional static rigidness of the tail end of the machine tool can automatically control the whole process of the loading, measurement and static rigidness calculation, is friendly to the interface and precise in control. The invention relates to a test method for the three-dimensional static rigidness of the tail end of the machine tool, the three-dimensional loading is realized by adopting a single-direction loading mechanism to be matched with the revolving function of the machine tool, the whole test process is controlled by adopting a control system device and the control system, the method is simple in operation, and the measurement precision is high.