32results about How to "Avoid Tilt Offset" patented technology

The invention discloses an inner valve of a hole-forming device of a cast-in-place large pipe pile and an application method thereof. The inner valve in the hole-forming device of the cast-in-place large pipe pile is combined with a double-layer sleeve to form a pile mould of the cast-in-place large pipe pile. The double-layer sleeve comprises an inner pipe and an outer pipe coaxial to the inner pipe, the inner valve comprises a plurality of valve units, the valve units are cut and formed on the same round table, and the valve units are rotatably connected to the lower side of the inner pipe.Wedge-shaped blocks capable of supporting two adjacent valve units are arranged in the double-layer sleeve, and the valve units are in lap joint with the inner lateral side of the outer pipe. Supporting assemblies are arranged between the valve units and the outer tube, and the supporting assemblies comprise top blocks, and magnetic material bodies are arranged inside the supporting assemblies orthe wedge-shaped blocks. The inner valve of the hole-forming device of the cast-in-place large pipe pile and the application method thereof has the beneficial effects that the stress of a core shaft is reduced, the defects of the sealing failure, deformation or inclination of the hole-forming device of a large diameter pipe pile are greatly reduced, the structural strength of the cast-in-place pipe pile is improved, and the service life of the pile mould is prolonged.

The invention discloses a seamless edge banding device for the production of wooden doors, which comprises a heat transfer edge banding machine, a support plate, rollers and a bracket. The support plate is located at one side of the edge banding table of the heat transfer edge banding machine. And the top of the support plate is provided with installation grooves, and a plurality of rollers are fixedly installed equidistantly in the installation grooves, and the brackets are provided with two, and both brackets are fixedly installed on the bottom of the support plate. The seamless edge banding device is different from the existing technology. Through the distance adjustment mechanism, it can ensure that the position of the support plate is adjusted to maintain a level with the thermal transfer edge banding machine, thereby preventing the wooden door from tilting and shifting during the edge banding process. In order to ensure the efficient and seamless edge banding of wooden doors, at the same time, through the set of miniature heat dissipation fans, it can effectively assist heat dissipation for the heat transfer edge banding machine, avoiding the need to wait for the device to rotate for a long time before shutting down when it is not in use. Very convenient.

The invention discloses a cast-in-place large pipe pile perforator outer valve and an application method thereof. The outer valve can be combined with a double-layer sleeve to form a pile mold of a cast-in-place large pipe pile; the double-layer sleeve comprises an inner pipe and an outer pipe; the outer valve comprises a valve unit; the valve unit is cut by the same circular table; the valve unitis connected to the lower side of the outer pipe; the valve unit can be joined with the outer side surface of the inner pipe to form a perforation round table; a support module is arranged between the valve unit and the inner pipe; the support module comprises an ejection block; the ejection block is bonded with the inner pipe and the perforation round table at the same time; and a magnetic material body is arranged in the support module. The outer valve has the following advantages: the valve unit is combined for tidy alignment, so that mud is prevented from entering an annular cavity of thepile mold, and the structural strength of the large-diameter pipe pile is improved; the support module can improve the pressure capacity of the valve unit, so that the structural strength and the reliability of the cast-in-place large pipe pile are improved; the magnetic material body improves the connecting tightness and stability of the valve unit and the inner pipe; and the ejection block is vibrated during demolding to improve the structural strength of concrete.

The invention relates to the technical field of automobile braking, and discloses a novel drum brake with high service life and good safety performance. The novel drum brake comprises a chassis, wherein an insertion shaft opening is formed in the front surface of the chassis, eight fixing holes are formed in the front surface of the chassis and located outside the insertion shaft opening, and limiting plates which are respectively positioned on the left side and the right side of the insertion shaft opening are fixedly arranged on the front surface of the bottom plate. According to the novel drum brake with high service life and good safety performance, a brake grinding piece cannot be directly pushed by a brake wheel cylinder for braking when the brake grinding piece is braked, the smalldeflection angle is generated, the inner ring of a wheel can be better adapted to the inner ring of the wheel, the brake is attached to the inner ring of the wheel, and the abrasion of the brake grinding piece is more uniform after being braked for a plurality of times, the abrasion part cannot deviate, and the service life of the brake grinding piece is prolonged; meanwhile, due to the fact thatthe brake grinding piece is more attached, the braking performance is guaranteed, and the driving safety of a driver is guaranteed; and meanwhile, the service life of the drum brake is further prolonged, and the replacement and maintenance cost of a user is reduced.