36results about How to "Avoid seal leaks" patented technology

The object of the present invention is to inject a sealing material into a cap receiving an electric cable joint without remaining air bubbles. The cap having an opening at both ends receives an electric cable joint, the electric cable being in the upper side and the joint being in the lower side, the sealing material is injected into the cap from the lower opening. Moreover, the sealing material is injected into the cap having the opening at the top and bottom from the lower opening and the electric cable joint is inserted into the cap from the upper opening. Moreover, the electric cable joint is received in the cap having the opening at both sides, the sealing material is injected into the cap from the upper opening and the cap is reversed up and down to leave. Moreover, the sealing material is injected into the cap having the opening at both sides, from the upper opening and the electric cable joint is inserted into the cap and the cap is reversed up and down to leave. It is utilized that the cap holder receives the cap in the state that the upper and / or lower opening of the cap is covered.

The invention relates to a floating shaft lever sealing structure, comprising a shat lever, a gland, a shell cover, a floating ring, a shaft sleeve and a seal ring; wherein the gland and the shell cover are both sheathed on the shaft lever, the gland is fixed on the cover by virtue of a bolt, the lower surface of the gland is provided with a circle of bosses, the inner wall of the shell cover is provided with a step, the step is arranged below the boss, the floating ring is in a cylinder shape, the middle of the outer wall of the floating ring is provided with a circle of flanges, the flanges are compressed and arranged between the gland and the shell cover, the shaft sleeve is sheathed on the shaft lever, the outer wall thereof is bonded with the inner wall of the floating ring, the inner wall of the shaft sleeve is provided with a seal groove, and the seal ring is arranged in the seal groove. According to the structure, the effects that valve operating torque is reduced and daily maintenance is avoided are achieved, vibration and deflection of the shaft lever are absorbed by the floating ring, the shaft sleeve for placing the seal ring synchronously moves along with the shaft lever, the operation of the seal ring is not influenced by vibration and deflection of the shaft lever, and the effects that seal leakage is avoided and service life is prolonged are achieved.

The invention relates to an ultrahigh pressure triple plunger pump, comprising a machine body, a crank shaft connecting rod type power transmission device and a fluid end generating high pressure. The fluid end comprises a pump body, a pump cylinder, a plunger and a sealing box body. A guide valve, a drainage spring, a discharge valve, a valve seat, an inlet valve and an intake spring are arranged in series between the pump cylinder and the pump body. The pump body is provided with a low-pressure water inlet flow channel and a high-pressure water outlet flow channel. The pump cylinder is provided with a condensed water flow channel. A plunger sleeve is arranged between the pump cylinder and the plunger. A sealing component is arranged between the pump cylinder and the sealing box body. A bearing and a first sealing ring are arranged in the sealing box body. A second sealing ring is arranged between the pump cylinder and the sealing component. Two ends of the valve seat are provided with a third sealing ring and a fourth sealing ring. The pump body is of integral type structure. A group of guide holes with the function of buffering are uniformly distributed at the circumference of the guide valve. The condensed water flow channel is communicated with the low-pressure water inlet flow channel on the pump body. A bracket and sliding block type resetting structure is arranged outside the pump body. As a multi-sealing and resetting structure is adopted, the problems that the sealing of the pump is not good and the assembly and the resetting are difficult are solved.

The invention provides a safety double-sealed ball valve which comprises a valve body, a ball body (7) and a switch body. The valve body comprises an inlet valve body (1) and an outlet valve body (2) which are located at the upstream end and the downstream end of the ball body (7), the axial direction of the inlet valve body (1) and the axial direction of the outlet valve body (2) are perpendicular to the axial direction of the switch body, a gasket (9) perpendicular to the axial direction of the valve body is arranged between the inlet valve body (1) and the outlet valve body (2), a sealing device is arranged between the valve body and the ball body (7) and comprises a spring, an annular supporting ring, a valve seat and an O-shaped sealing ring, the spring, the annular supporting ring and the valve seat are sequentially arranged in the axial direction of the valve body, the O-shaped sealing ring is arranged in a groove in the outer wall of the annular supporting ring, the switch body is embedded in the outlet valve body (2), the axial direction of the switch body is perpendicular to the axial direction of the valve body, and the switch body penetrates through the center of the ball body (7). Under the condition that pressure rises in a cavity in the valve body abnormally, the ball valve can discharge pressure rapidly from an upstream or downstream pipeline, and safety protection is achieved.

The invention relates to a urine detection transport frame for a clinical lab. The urine detection transport frame comprises a frame, fixing units, moving wheels and a handle. The fixing units are evenly arranged on the inner wall of the frame from top to bottom, the moving wheels are installed at the lower end of the frame through bearings, and the handle is installed at the left end of the frame. By the adoption of a movable transport frame structure, a worker can directly convey urine measuring glasses to an inspection department through the transport frame instead of sealing and then collecting the urine measuring glasses in a toilet; and through the structural design of fixing, sealing and meanwhile shock absorption of the urine measuring glasses, the problems that urine in the urinemeasuring glasses is spilt out and even mixed together to cause inaccurate physical examination results due to subtle vibration when the whole transport frame is conveyed to a laboratory are solved.

The invention discloses a safety valve which comprises a valve body, a sealing assembly and a spring assembly, and the sealing assembly and the spring assembly are installed in the valve body. The sealing assembly comprises a valve seat and a piston, a sealing seat matched with the valve seat is arranged in the valve body, the sealing seat is provided with an outer conical sealing surface, the valve seat is provided with a pit matched with the sealing seat, and the interior of the pit is provided with an inner conical surface matched with the outer conical sealing surface. According to the safety valve, condensate water and other impurities generated by moist air in the valve body at the ultralow temperature can not be deposited on the valve seat, and meanwhile the low-temperature leakage caused by low-temperature shrinkage distortion of sealing materials can be avoided.

The invention discloses a valve shaft supporting structure of a large-diameter butterfly valve, which can prevent a valve shaft from sinking. The valve shaft supporting structure comprises a valve shaft; the two ends of the valve shaft are arranged outside a valve body; and the two ends of the valve shaft are respectively arranged on a bearing seat through a supporting bearing. The valve shaft supporting structure has the advantages that the valve shaft supporting structure of the large-diameter butterfly valve adopting the mode of supporting by the two ends of the valve shaft can effectively eradicate the phenomenon of the sinking of the valve shaft and a valve plate, avoid the phenomenon of the leakage of a sealing pair caused by the misplacement of the sealing pair, and simultaneously avoid the phenomenon of expansion and shaft hung caused by the variation of temperature of pipeline media, the structure is simple, the maintenance period of the large-diameter butterfly valve is prolonged, and the maintenance cost of the large-diameter butterfly valve is effectively reduced.

A semiconductor device comprises: a first and second die pads arranged side by side; a plurality of inner leads arranged around the first and second die pads; first and second chips mounted on the first and second die pads; a bar provided between the first and second chips and the plurality of inner leads, extending in an array direction of the first chip and the second chip; a plurality of wires that connect the first and second chips and the plurality of inner leads and connect the first chip and the second chip; and resin that seals the first and second die pads, the plurality of inner leads, the first and second chips, the plurality of wires and the bar, wherein the bar comprises a mark provided at a position corresponding to an area between the first chip and the second chip in an array direction of the first chip and the second chip.

The invention relates to the field of sealing devices for fluid medium conveying pipelines, in particular to a high-temperature-resistant mechanical sealing device. The high-temperature-resistant mechanical sealing device comprises a movable ring (4), a static ring (5) and a revolving shaft (20), and is characterized by further comprising a vacuum shaft sleeve (11) and an O-shaped ring (13), wherein the inner cavity of the vacuum shaft sleeve (11) is in a high-vacuum state; the vacuum shaft sleeve (11) is fixed on the revolving shaft (20) in a sleeving manner; the movable ring (4) is fixed on the vacuum shaft sleeve (11) in the sleeving manner; the static ring is rotationally arranged on the vacuum shaft sleeve (11) in the sleeving manner; the static ring (5) and the movable ring (4) are jointed together and rotate relatively; the O-shaped ring (13) is lined between the vacuum shaft sleeve (11) and the revolving shaft (20). The high-temperature-resistant mechanical sealing device has high sealing performance, low medium leakage, long running time and long service life.

The invention discloses a sealing device with novel style construction, good sealing property, high mechanical shock resistance, the construction includes a shaft sleeve, a moving ring base, a moving ring, a stationary component. A sealing member is arranged on internal side of the shaft sleeve, a moving ring base is arranged on bottom of the shaft sleeve pushed by an elastic component at middle,a moving ring is arranged on top of the moving ring base, the stationary component is arranged above the moving ring, a locking device is arranged on top of the shaft sleeve. The invention has advantages of a relative rotation preventing device arranged on the moving ring base and the shaft sleeve, good sealing property of the sealing device and high mechanical shock resistance.

The invention relates to the technical field of information processing, and discloses an information management system which comprises data acquisition, data conversion, data storage, data retrieval, data processing, data management and data transmission. According to the information management system, method and device, original data in different forms are collected from different information sources and different media through the information collection module, the original data are converted into a form capable of being read and processed by a computer through an information conversion module, the collected information is classified through the information conversion module, and the classified information is stored; the stored classified information is processed in batches through an information processing module, and the effect of simple, convenient and efficient information processing is achieved; meanwhile, the security of information management is preliminarily improved by setting a login account and a password, the security of information management is further improved by limiting and regularly modifying the password, and the effects of simplicity and convenience in use and high security are achieved.

This invention refers to a semiconductor device capable of easily performing chip contraposition when a lower die pad carries two chips in transversely arranged. A plurality of inner leads (15) is arranged around the first and second die pads which are arranged side by side. First and second chips (16, 17) are mounted on the first and second die pads (11, 12). A bar (18) is provided between the first and second chips (16, 17) and the plurality of inner leads (15), extending in an array direction of the first chip (16) and the second chip (17). A plurality of wires connects the first and second chips (16, 17) and the plurality of inner leads (15) and connects the first chip (16) and the second chip (17); and a resin (21) seals the first and second die pads, the plurality of inner leads, the first and second chips, the plurality of wires and the bar, wherein the bar (18) comprises a bump (19) as a mark provided at a position corresponding to an area between the first chip (16) and the second chip (17) in an array direction of the first chip and the second chip.

The invention provides an automatic grease pumping and injecting device and method for bearing lubrication. The device at least comprises a control system, a grease pumping system and a grease injecting device; the grease pumping system comprises a waste grease storage tank, a grease pumping pump, a pipe and a connector; the grease injecting device comprises a grease injecting pump, a novel grease storage tank, a pipe and a connector; and the control system comprises a processor, a data storage device and sensors, and the sensors are connected with the grease injecting pump and the grease pumping pump, control closing of the grease injecting pump and the grease pumping pump, are distributed on the novel grease storage tank, the waste grease storage tank and a working site, collect relevant data and transmit the data to the data storage device. The invention further provides the automatic grease pumping and injecting method. According to the technical scheme, the shortcomings in the prior art are overcome; and automatic grease pumping and injecting can be achieved, operation is simple, and the grease pumping amount and the grease injecting amount can be controlled.