9results about How to "Improve bite" patented technology

The utility model relates to the technical field of anchor bolts, and particularly discloses a plastic anchor bolt special for maintenance of an outer wall thermal insulation layer, the plastic anchor bolt comprises a metal screw and a plastic expansion sleeve, and a plastic disc is arranged at the top of the plastic expansion sleeve; a cavity for accommodating the metal screw is formed in the plastic expansion sleeve; the upper portion of the plastic expansion sleeve is a sleeve, the lower portion of the plastic expansion sleeve is an anchoring end, a glue injection hole communicated with the cavity is formed in the sleeve, and a glue injection sealing film is arranged between the glue injection hole and the anchoring end. Due to the expansion gap formed in the middle of the anchoring end and the protrusions and the recesses in the outer wall, after the anchor bolt is installed, the anchor bolt can be better meshed with a base material, the anchoring strength is improved, and the anti-drawing performance of the anchor bolt is improved. The glue injection sealing film is arranged between the glue injection hole and the anchoring end, so that glue liquid can be prevented from leaking to other places during glue injection, and the glue injection pressure and the glue liquid are ensured to reach required places only through the glue injection hole; and after glue injection, the reinforcing effect of the anchor bolts on the thermal insulation layer is further enhanced.

The invention provides a rotating wheel of an open type steel bar wrench. The rotating wheel comprises an open rotating wheel body, a sliding way A, a sliding way B, a clamping head A and a clamping head B, the front end of the open runner is provided with a radial opening; gear teeth are arranged on the outer circumference of the opening rotating wheel; the slideway A is obliquely arranged on the upper end face of the opening runner and located on one side of the radial opening; the slideway B is arranged on the upper end surface of the opening rotating wheel and is positioned on the other side of the radial opening; the clamping head A is mounted in the slide way A in a sliding manner; the clamping head B is mounted in the slide way B in a position-adjustable manner; the steel bar is clamped through the cooperation of the clamping head A and the clamping head B; the clamping head A and the clamping head B are located at the upper end of the opening rotating wheel and exposed, the structure is simple, meanwhile, the position of the clamping head B can be conveniently adjusted, the tool storage cost of a construction site and the time cost for searching and matching external tools do not need to be additionally increased, the abrasion conditions of the clamping head A and the clamping head B are easy to observe, and replacement is easy.

The utility model belongs to the technical field of petroleum workover equipment, concretely relates to a hydraulic tong station adjusting device and workover equipment, including the adjusting frame and the chassis, the longitudinal beam that sets up two hydraulic cylinders in the middle part of chassis is hinged, the piston rod end of two hydraulic cylinders all is hinged on the adjusting frame, the adjusting frame is driven its rotation around the axis of articulation shaft and drives hydraulic tong swing relative to the chassis by the piston rod telescopic drive of hydraulic cylinder, when the adjusting frame swings to the second end of chassis, and the limit support that this end of chassis is perpendicular fixed limits the contact. The utility model has realized the continuous, stable and automatic swing switching of hydraulic tong from the work position to the retreat position, reduced the strength of manual operation, improved the operation efficiency, reduced the operation error and the security risk caused by human factor, ensured that the hydraulic tong in non - working state, the equipment can absolutely stably keep in the retreat position, satisfied the extreme requirement of safety of wellhead unmanned operation.

This utility model provides an atomizing mouthpiece air path, belonging to the field of atomizing mouthpiece air paths. It includes a delivery pipe and a threaded connector at one end of the delivery pipe, and further includes: a sealing plate; a threaded tube that mates with the threaded connector is provided on the side wall of the sealing plate; an atomizing tube communicating with the threaded tube is provided through the inner wall of the sealing plate; a first air bladder is provided on the inner wall of the sealing plate; two sets of mouthpiece seats are provided on the inner wall of the first air bladder; and an inflation tube communicating with the first air bladder is provided through the outer wall of the sealing plate. This utility model, by setting mouthpiece seats and bite grooves that mate with teeth, facilitates teeth biting onto the mouthpiece seats, reduces the load on the patient's masseter muscle, improves patient comfort during atomization, and enhances the atomization effect.

The utility model relates to rice -shrimp culture technical field especially discloses a kind of modularization escape-preventing device for rice -shrimp co-production, to solve the problem of poor escape-preventing effect of existing device, low installation efficiency, insufficient wind resistance and biting resistance performance.The device includes escape-preventing plate, and the bottom of plate body is provided with plug nail, and the upper end is provided with inverted U-shaped top inner hem;Wind-resistant micro-perforation with 5°inclination angle is opened in the upper portion of plate face;T-shaped convex rod is arranged on the left side of plate body, and the right side is provided with matched T-shaped groove one and T-shaped groove two;Connection assembly is arranged in the slot of both ends.By T-shaped structure, quick splicing and turning adaptation are realized, the extension rod enhances soil fixation, and multiple structures cooperatively improve the escape-preventing effect, while having wind resistance, biting resistance, efficient installation, and adaptation to multiple terrains, etc.Features, suitable for rice -shrimp co-production field, can significantly reduce breeding loss, and has higher practical value.

The utility model relates to the field of tapping tools, in particular to a threading sleeve capable of changing threading die specifications, which comprises a left sleeve and a right sleeve, the left sleeve and the right sleeve respectively comprise a cylinder, a butt joint piece and a round through hole penetrating through the cylinder and the butt joint piece, and the cylinder of the left sleeve and the cylinder of the right sleeve are in butt joint and are fixedly connected through a screw. A containing cavity is formed in the butt joint position of the two butt-joint cylinders, a threading die piece used for tapping is arranged in the containing cavity, and the threading die piece is detachably fixed in the containing cavity. The split type threading cylinder is reasonable in structure, solves the problems that a traditional threading cylinder is fixed in specification, difficult to maintain and inconvenient to carry through the detachable threading die structure and the split type sleeve design, and has high practicability and economical efficiency.

The utility model relates to stainless steel pipe technical field especially relates to anticorrosive semiconductor electrolytic polishing stainless steel pipe, its technical scheme includes stainless steel pipe main part and sleeve, the first convex ring and the second convex ring are separately arranged to the outer surface of stainless steel pipe main part near the bottom end and the top end position department, the outer surface of first convex ring is provided with outer thread, the second convex ring and stainless steel pipe main part top end all are located in the inside of sleeve, the position department of limit ring is set up to the inner wall of sleeve near the bottom end, the inner wall of sleeve is provided with internal thread, the position department of L type step is set up to the inner wall of stainless steel pipe main part near the top end, the inner wall of L type step is provided with annular groove, the inside mounting of annular groove has main seal ring, the inner wall of main seal ring is provided with conical inclined surface, the utility model discloses when electrolytic anticorrosive stainless steel pipe is connected through thread, can improve its connection sealing property through multiple seals, to adapt to the clean and sealing requirement of semiconductor field rigor.

The utility model provides a kind of stable ground gripping type concrete pipe pile, the stable ground gripping type concrete pipe pile includes pipe pile body, by C50 and above strength grade concrete pouring, outer diameter is 0.8-1.5 meters, wall thickness is 100-250 millimeters;Ground gripping part, set in the bottom end of pipe pile body, the ground gripping part is conical tip, tip surface is equipped with helical groove, groove depth is 10-30 millimeters, pitch is 50-150 millimeters;Longitudinal main reinforcement, along the circumferential uniform distribution of pipe pile body inner wall, the longitudinal main reinforcement is HRB400 grade reinforcing bar, diameter 20-32 millimeters, interval is 80-150 millimeters;Outer wall ground gripping texture, along pipe pile body outer surface axial distribution, the texture is trapezoidal projection, height is 5-15 millimeters, width is 20-50 millimeters, adjacent projection interval is 30-80 millimeters. By optimizing bottom ground gripping structure, outer wall texture design and internal strengthening scheme, the penetration efficiency of pipe pile, displacement resistance and connection reliability are significantly improved.

The application relates to a wave-shaped high-pressure hose assembly buckling device and belongs to the technical field of high-pressure hose assemblies. The device comprises a buckling machine and a die seat. The die seat is a cylindrical structure composed of multiple concentric modules. A pressing block is detachably arranged on the concentric module. A plurality of equally-spaced protruding teeth are formed on the inner side surface of the pressing block, and a wave-shaped groove is formed between the adjacent protruding teeth. The die seat is connected with the buckling machine, and the buckling machine drives the die seat to press and form the wave-shaped pattern. The buckling device improves the anti-pulling-off capability, the sealing property and the overall versatility of the high-pressure hose assembly.