39results about How to "Increase structural rigidity" patented technology

The application relates to the field of sealing, in particular to a rubber barrel with inner side of a lower seal ring not coated with copper sheet, a packer and a bridge plug, with the rubber barrel capable of bearing high temperature and high pressure in the oil production industry. The outside of the lower seal ring of the rubber barrel is covered with first copper sheet, and the first copper sheet covers the upper surface, lower surface and outer side of the lower seal ring instead of the inner side of the lower seal ring; the thickness of the first copper sheet is configured such that when an upper portion bears first axial pressure, the lower seal ring deforms radially to enable the first copper sheet distributed on the inner side of the lower seal ring to contact a center tube, and the first copper sheet distributed on the outer surface of the lower seal ring to contact a sleeve. The lower seal ring of the application is covered with the first copper sheet, the degrading effect of high-temperature high-pressure steam small molecules on the rubber barrel is decreased or avoided, and long-term sealing effectiveness of the rubber barrel is improved.

The invention relates to the field of sealing, in particular to a rubber cylinder coated with upper and lower copper skins on a lower end sealing ring as well as a packer and a bridge plug, which are used in the petroleum production industry. A first copper skin coats the lower end sealing ring of the rubber cylinder; the first copper skin comprises an upper side copper skin and a lower side copper skin; the upper side copper skin coats the upper surface, the external side surface and the internal side surface of the lower end sealing ring; the lower side copper skin coats the lower surface, the internal side surface and the external side surface of the lower end sealing ring; and the upper side copper skin and the lower side copper skin are overlapped on the internal side surface and the external side surface of the lower end sealing ring. According to the invention, as the first copper skin coats the lower end sealing ring, a degradation effect, on the rubber cylinder, of small molecules of high temperature high pressure vapor is lightened or prevented and the long-term effect of the sealing of the rubber cylinder is enhanced.

The invention relates to the field of sealing, and particularly relates to a rubber barrel with harder upper end part which is used in an oil exploitation industry and can bear a high temperature and a high pressure a packer and a bridge plug. According to one aspect of the invention, the rubber barrel is provided, wherein the hardness of the upper end part of the rubber barrel is more than the hardness of the middle part of the rubber barrel, so that the shape change of the middle part in the radial direction is more than the shape change of the upper end part in the radial direction when the upper end part bears first axial pressure. The hardness of the upper end part is more than the hardness of the middle part, in this way, when the upper end part bears the first axial pressure, the upper end part tends to transfer the first axial pressure to the middle part and a lower end part rather than uses the first axial pressure for self radial deformation. Thus, the middle part and the lower end part can be enabled to generate radial deformation when a smaller first axial pressure is used, so as to achieve the integral sealing of the rubber barrel.

The invention discloses a suspension type furniture sliding door. The suspension type furniture sliding door comprises rolling wheel devices, wherein the rolling wheel devices comprise rolling wheels,support elements and screw elements, wherein the rolling wheels are arranged on the support elements in a rolling mode, and the support elements are made of plastic; notch parts are arranged on the support elements, and the notch parts are integrally provided with flexible pieces; threaded parts are further arranged on the notch parts; and the screw elements are movably arranged on the support elements through the threaded parts, and at least act on the flexible pieces when the screw elements move. Through the improvement of the structure, the suspension type furniture sliding door has the characteristics of being simple and reasonable in structure, safe and reliable, convenient to use, fast to assemble, long in service life, low in manufacturing cost, and small in size, the connection compactness between all the components is high, and the opening and closing processes are stable and smooth, so that the practicability is high.

The invention relates to the technical field of sealing of a petroleum exploitation industry and particularly relates to a rubber barrel with annular packing in inner cores, which can bear high temperature and high pressure, and a packer and a bridge plug which are provided with the rubber barrel. A sealing body of the rubber barrel comprises the plurality of inner cores, wherein each inner core is provided with a rubber body and an annular base body; the whole bodies of the plurality of inner cores are arrayed along the axial direction of the rubber barrel; each base body is composed of a plurality of high-temperature-resisting and high-pressure-resisting fiber yarns which are mutually crossed; and the rubber bodies are stuck with the fiber yarns and the rubber bodies are distributed on the surfaces of the base bodies so that inner surfaces and outer surfaces are formed on the inner parts and the outer parts of the plurality of inner cores which are arrayed along the axial direction respectively. The base bodies have the fiber yarns which are mutually crossed, and the rubber bodies are distributed on the surfaces and the inner parts of the base bodies and are used for sticking all the fiber yarns. When the rubber barrel is subjected to axial pressure and is expanded, the fiber yarns limit the expansion, so that the structure rigidity of the rubber barrel is wholly increased and the compressive strength of the rubber barrel is improved.

The invention discloses a high wear-resistant ceramic composite guide roller and a preparation method thereof. It includes a roller core and a ceramic ring, and the ceramic rings are arranged side by side on the roller core at equal intervals, and the spacing is in the range of 1cm-5cm; the ceramic ring is fixed on the roller core through a fusion base; the inner surface of the ceramic ring is evenly distributed There is a gap. In the present invention, the guide roller adopts ceramic rings arranged side by side at equal intervals on a roller core, and the ceramic ring is fixed on the roller core through a fusion base; the peripheral side of the ceramic ring is used as a working surface, and the fusion base is used as a composite base material. The ceramic ring is made of titanium carbide ceramics or titanium silicon carbide or alumina ceramics or zirconium carbide ceramics, which has high structural hardness and strong wear resistance, which improves the service life of the guide roller.

The invention relates to the field of sealing, in particularly to a rubber sleeve which can bear high temperature and high pressure and comprises a metal wire sealing ring, a packer and a bridge plug used in the oil exploitation industry. The rubber sleeve comprises the metal wire sealing ring and a fiber wire sealing ring, wherein the metal wire sealing ring and the fiber wire sealing ring abut against each other and are arranged on the lower portion. The metal wire sealing ring comprises a plurality of mutually intersecting metal wires and glue bonding the metal wires together. The fiber wire sealing ring comprises a plurality of fiber wires which mutually intersect and resist high temperature and high pressure and glue bonding the fiber wires together. When the metal wire sealing ring is arranged below the fiber wire sealing ring, axial pressure transmitted to the fiber wire sealing ring can be reduced due to the friction between the metal wire sealing ring and a central pipe and / or a sleeve pipe, and at the time axial pressure on the fiber wire sealing ring can be effectively reduced. The reason for generation of shoulder protrusion is too large axial pressure, so that generation of shoulder protrusion can be reduced or prevented through the design.

The invention relates to the field of golf clubs, in particular to a manufacturing method for forging a ball head to achieve local structure compaction and the ball head produced through the method, the manufacturing method comprises the following steps of preparation; first performing; second performing; finish forging reshaping; local compaction; and finished product reshaping. According to themanufacturing method and the ball head, through the steps, the forged ball head achieves the effect of metallographic crystallization compaction in a sweet zone of a hitting face, the ball hitting structural strength of the sweet zone of the forged ball head is further improved, the hitting sound is improved, and the better ball hitting experience is achieved for users.

The invention relates to the field of sealing, in particular to a packer element with a lower end sealing ring wrapped by two copper sheets, a packer and a bridge plug which are used in the oil production industry and can bearing high temperature and high pressure. The packer element adopts the structure that a first copper sheet wraps the upper surface, the lower surface, the inner side surface and the outer side surface of the lower end sealing ring, and consists of an inner copper sheet and an outer copper sheet; the inner copper sheet wraps the upper surface, the lower surface and the inner side surface of the lower end sealing ring; the outer copper sheet wraps the upper surface, the lower surface and the outer side surface of the lower end sealing ring; the inner copper sheet and the outer copper sheet overlap on the upper surface and the lower surface of the lower end sealing ring. As the lower end sealing ring is wrapped by the first copper sheets, the degradation effect of micromolecules in high-temperature high-pressure steam on the packer element can be reduced or avoided, and the long-acting sealing effect of the packer element is improved.

The invention relates to the field of painting, in particular to an automatic painting device for foundation supports, which includes a rotary drive mechanism, a stud clamping mechanism, an opening and closing control mechanism, a linear movement mechanism, support material conveying equipment, and two spray angle adjustment mechanisms 1. The rotating mounting base and the painting mechanism. The automatic painting device of the foot support drives the spray head to move through the spray angle adjustment mechanism, which will make the spray head drive the rotating plate to swing on the second fixed plate, and spray paint in this swinging way. , which in turn can reduce the space in the sealed circular plate, so that the flow range of the spray paint is reduced, the time for the paint surface to adhere to the inner wall of the rotating ring is faster, the diffusion range of the paint smell is reduced, and the health hazards to the workers are reduced. Through the angle swing, Carry out rotary painting on the bottom plate, so that the thickness of the paint on the edge of the bottom plate is obviously greater than the thickness of the paint on the inner edge of the nozzle. Due to the thicker edge, the structural hardness of the paint surface will be increased, the paint will be reduced, and the paint in the middle will be reduced. quantity.

The invention relates to the field of sealing, in particular to a rubber sleeve with a lower end seal ring covered with an opened copper sheet, a packer and a bridge plug, wherein the rubber sleeve is used in the oil exploitation industry and can bearing high temperature and high pressure. The lower end seal ring of the rubber sleeve is covered with the first copper sheet, the first copper sheet covers the upper surface, the lower surface, the inner side face and the outer side face of the lower end seal ring, and the thickness of the first copper sheet is set in the mode that when the upper end bears first axial pressure, the lower end seal ring deforms in the radial direction so that the part, distributed on the inner surface of the lower end seal ring, of the first copper sheet can butt against a center tube and the part, distributed on the outer surface of the lower end seal ring, of the first copper sheet can butt against the sleeve; an annular opening is formed in the edge, located on the upper surface of the lower end seal ring, of the first copper sheet. The lower end seal ring is covered with the first copper sheet, the degradation function on the rubber sleeve by high-temperature and high-pressure steam micromolecules is reduced or prevented, and the sealing long-term effect of the rubber sleeve is improved.