77results about How to "Effective limit fixed" patented technology

The invention discloses an electronic billboard transportation protection device, and relates to the field of electronic billboard transportation. The electronic billboard transportation protection device aims at solving the problem that an existing electronic billboard cannot be effectively fixed in a transportation process, so that the electronic billboard is caused to be collided and damaged. According to the solution, the electronic billboard transportation protection device comprises a bottom plate, a side plate is fixedly installed on one side of the top end of the bottom plate, a buffergroove is formed in the top end of the bottom plate, a placing plate is slidably installed in the buffer groove, buffer springs are evenly connected between the bottom end of the placing plate and the inner wall of the buffer groove, a movable groove is formed inside the side plate in the length direction of the side plate, a movable block of the same structure is slidably installed in the movable groove, and a connecting rod is fixedly connected to the side, close to the placing plate, of the movable block. According to the electronic billboard transportation protection device, electronic billboards of different sizes can be effectively limited, fixed, buffered and protected, the operation performance of the device is improved and the electronic billboard transportation protection deviceis suitable for popularization.

The invention relates to the technical field of meter boxes, and discloses intelligent meter box charging module equipment which comprises a box body, wherein a mounting mechanism is fixedly connected to the bottom of the box body, a box door is hinged to the top of the box body through a hinge, a charging module mechanism is fixedly connected to the middle in the box body, a monitoring mechanism is fixedly connected to the top in the box body, and mounting holes are formed in four corners of the charging module mechanism on the back of the box body. According to the intelligent meter box charging module equipment, a bolt penetrates through a mounting hole and a fixing hole, a mounting rod can be quickly fixed to a wall surface, so that the purpose of fixing the box body is achieved, and when the box body is subjected to a vibration force, a damping spring at the bottom of the box body well weakens and counteracts the vibration force through four points, so that the stability of the box body is ensured, and at the moment, the limiting rod slides in the sliding groove and rubs with the inner wall of the sliding groove, so that a good damping effect is achieved on the damping spring, and the problem that instruments and meters in the meter box are easily damaged after being vibrated is effectively solved.

The invention relates to the technical field of pressure instrument housings, and discloses a pressure instrument housing equipped with a solar panel seat. The pressure instrument housing comprises ahousing body, a circular cover, a disc seat and a solar panel fixing seat, wherein the top of the housing body is communicated with a through pipe, the top end of the through pipe runs through and extends to the top of the disc seat, the outer circumferential surface of the through pipe is rotatably connected with the center of the disc seat through a bearing, the top of the disc seat is articulated with the left side of the solar panel fixing seat through a support, the top of the disc seat and the bottom of the solar panel fixing seat are provided with an angle adjustment mechanism therebetween, the bottom of the solar panel fixing seat is fixedly equipped with a corrugated pipe at the middle part, and the bottom end of the corrugated pipe is communicated with the top of the through pipe. The pressure instrument housing solves a problem that the housing of the existing pressure transmitter realizes operation by using circuit electrification and is high in input cost, long in manufacturing cost, and time and labor consuming in installation.

The invention relates to the field of electrical equipment, in particular to a magnetic ring fixing device and an electrical box. The invention provides a magnetic ring fixing device and an electric appliance box, so as to realize the limiting fixing of the magnetic ring at least under the requirement that the magnetic ring winds the power supply wire. The magnetic ring fixing device comprises a fixing surface, an arc-shaped positioning surface arranged on the fixing surface, and two clamping parts arranged on two sides of the arc-shaped positioning surface and opposite to each other. The twoengaging parts are used for engaging the inner circle of the magnetic ring so as to fix and limit the magnetic ring to the arc-shaped positioning surface.

The invention relates to a convenient-to-mount rotatable valve with an anti-corrosion structure. The rotatable valve comprises a valve deck, a clamping plate and a traction rod, wherein a fixing discis arranged at the top end of the valve deck, and a top cover is distributed in the middle part of the top end of the fixing disc; and the clamping plate is welded to the two sides of the top end of the middle part of the top cover, a waist tightening hole is formed in the middle part of the clamping plate, and a fixing screw penetrate through the interior of the waist tightening hole. According to the convenient-to-mount rotatable valve with the anti-corrosion structure, through the arrangement of the clamping plate and the waist tightening hole, the waist tightening hole transversely penetrates through the middle part of the clamping plate, the whole clamping plate can effectively limit and fix the traction rod, meanwhile, the fixing screw penetrates through the middle part of the traction rod, and the traction rod is longitudinally fixed through the fixing screw, so that it is guaranteed that the sliding range of the whole traction rod is within the length range of the waist tightening hole, and it can be effectively guaranteed that the whole traction rod is distributed in a horizontal plane; and meanwhile, the whole clamping plate is connected with the top cover in a welding mode, so that the connecting strength of the clamping plate is high, and the clamping plate is not prone to break in the using process.

The invention discloses a manhole wellhead reserved installation mechanism for asphalt pavement construction, comprising an installation ring and a manhole cover with two clamping grooves on the side wall, the installation ring is provided with two chutes, two installation cavities and two There are two sliding grooves, both of which are provided with blocking mechanisms. Both of the blocking mechanisms extend into the opposite clamping grooves on the manhole cover and abut against their inner side walls. Both the sliding grooves are provided with A driving mechanism, the two driving mechanisms both extend into the opposite installation cavities and are slidably connected with them, the top ends of the two driving mechanisms both extend into the opposite blocking mechanisms and abut against their inner walls, and the two installation cavities Both are provided with a rotating mechanism, and the top of the mounting ring is provided with two pulling mechanisms. The present invention has a reasonable structure design, can effectively limit and fix the installed manhole cover, and is generally difficult for uninformed persons to remove the manhole cover, ensuring that the manhole cover is not easily lost.