6results about How to "Convenient air tightness testing" patented technology

The utility model provides a mechanical seal air tightness detection device, which relates to the technical field of air tightness detection and comprises a bottom plate, a mounting plate is mounted at the top end of the bottom plate, a lower sealing plate is mounted above the mounting plate, fixing mechanisms are arranged on two sides of the top end of the mounting plate, and a material pump is mounted at the front end of a liquid storage cavity. One end of the transfer pump is communicated with one end of the liquid storage cavity, a corrugated pipe is mounted at the other end of the transfer pump, and a spray head is mounted at one end of the corrugated pipe; through mutual cooperation of the air pump, the liquid storage cavity, the transfer pump and the spray head, ventilation can be conducted on the interior of the mechanical sealing element, then liquid soap in the liquid storage cavity is sprayed to the connecting position of the mechanical sealing element, and the air tightness of the mechanical sealing element is judged by observing whether bubbling occurs or not. Therefore, the airtightness detection of the mechanical sealing element is more convenient and faster, and the convenience of the device in use is greatly improved.

The utility model discloses a leak hunting device for a marine brake system, which belongs to the field of brake systems and comprises an operating platform, a vertical frame is fixedly connected to the upper top end of the operating platform, a detection assembly is arranged on the outer wall of the vertical frame and comprises an air bag seat fixedly connected to the outer wall of the vertical frame, and the output end of the air bag seat is fixedly sleeved with a jacking air bag. Through cooperative use of the devices, an operator can conveniently detect the air tightness of the brake system assembly, the air bag seat, the jacking air bag and the sealing disc can be used for lifting from the inner wall of a pipeline of the brake system assembly, multi-directional detection of the assembly is not affected, repeated disassembly and placement are not needed, and the detection efficiency is improved. By means of the water spraying ring base, the reciprocating lead screw and the pressurization assembly, detection liquid for detecting air tightness can be sprayed to the outer wall of the brake system assembly in multiple directions, then the interior of a brake system is pressurized through high-pressure gas, and the detection efficiency can be improved while the clamping effect can be improved.

The utility model discloses a food packaging tin air tightness detection device, which belongs to the technical field of product packaging air tightness detection and comprises a gland and a water container, and the gland is pressed at the opening end of a to-be-detected tin body and seals the opening end of the to-be-detected tin body; the gland is provided with an air passage and is connected with air supply equipment, the gland is provided with an air outlet corresponding to the opening position of the tank body to be detected, and the air outlet is communicated with the air passage; the water container is an open container, the water container bears the closed end of the to-be-detected tank body, and the gland is matched with the water container to fix the to-be-detected tank body. According to the utility model, the requirement on the overall airtightness of the detection device is lower, the relative position of the gland and the water container can be adjusted according to the height of the tank body to be detected, and airtightness detection can be conveniently carried out on tanks with different specifications.

The utility model provides a valve sealing detection device, which relates to the field of valve sealing detection, and comprises a detection device main body, the detection device main body is connected with a cylinder body, the detection device main body comprises an end plate, the upper side of the end plate is connected with a hydraulic rod, the outer side of the hydraulic rod is connected with a fixed plate, and the fixed plate is connected with a piston rod. An electric push rod is installed on the upper side of the fixing plate, a piston block is connected to the lower end of the electric push rod, a second sealing ring is arranged on the outer wall of the piston block, a first branch pipe, a second branch pipe and a first air outlet pipe are slidably inserted into the end plate, and the bottom of the first branch pipe is close to the upper end of the piston block; the second branch pipe and the first air outlet pipe are inserted into the piston block in a penetrating mode, and meanwhile a second air outlet pipe is inserted into the end plate. According to the utility model, the sectional type air tightness detection effect on the air valve is realized, the air leakage point range is conveniently locked, and the effect of detecting a plurality of air valves at the same time is realized.

This utility model provides a fixture for testing the airtightness of irregular flanges, including a support platform, with a base fixedly connected to the surface of the support platform; a piston rod fixedly connected to the center of the bottom surface of the base, and the piston rod slidably connected inside a cylinder; a fixing plate fixedly connected to the top of the cylinder; multiple grippers rotatably connected to the surface of the fixing plate; multiple clamping plates installed on the side walls of the base, with the grippers slidably connected to the side walls of the clamping plates; a rubber sleeve installed on the surface of the base, with multiple positioning pins installed on the surface of the rubber sleeve; the positioning pins engage the irregular flange, the irregular flange is placed on the surface of the rubber sleeve, and the grippers abut and compress the side walls of the irregular flange. The fixture for testing the airtightness of irregular flanges provided by this utility model has the advantages of quickly fixing the flange and ensuring the sealing of the connection.

The utility model relates to an air tightness testing device for a pipeline joint. A test unit; and the pressurization and decompression assembly is arranged in the handle and is used for pressurizing or decompressing the pneumatic expansion sealing strip and the test cavity. According to the air tightness testing device for the pipeline joint, the testing part is arranged on the handle, the pressure increasing and relieving assembly is arranged in the handle, the portable detection effect is achieved, pneumatic expansion sealing strips are arranged at the two ends of the lower clamping part and the two ends of the upper clamping part, and an annular closed testing cavity can be formed when the lower clamping part and the upper clamping part are closed; the connector of the hookah smoke outlet and the hose is directly locked, so that the air tightness test is facilitated, the use is convenient and simple, in addition, the two-way pressure regulating valve and the integrated pressure relief electromagnetic valve realize time-sharing independent control of sealing and detection, the structure is further simplified, and the detection efficiency is remarkably improved.