21results about How to "Check tightness" patented technology

The invention relates to the technical field of part detection, in particular to a pressure gauge sealing performance detection device. The technical problems are as follows: leakage possibly exists at the joint of the pressure gauge and the air pressure pipe, the sealing detection of the pressure gauge body is influenced, the detection is not accurate enough, the existing sealing detection device is inconvenient to simulate the actual situation, the detection is not sufficient enough, the detection result of the pressure gauge is difficult to have effectiveness, and the detection efficiency is poor. Therefore, the detection effect is not good. A pressure gauge sealing performance detection device comprises a base, the bottom of the periphery of which is fixedly connected with support legs; the water tank is mounted on the base, and glass plates are mounted on two sides of the water tank. A worker can observe the interior of the water tank through the glass plate to know specific leakage points of the pressure gauge, so that the sealing performance of the pressure gauge is accurately detected, the performance of the sealing performance of the pressure gauge under uncertain air pressure is simulated, the sealing performance of the pressure gauge can be fully detected, and the detection effect is remarkably enhanced.

The invention is suitable for the technical field of valve detection, and provides a valve pressure resistance detection device and method, the valve pressure resistance detection device comprises a device platform, and further comprises a conveying assembly, the conveying assembly comprises two guide rail frames, a moving seat is slidably arranged on the guide rail frames, and a supporting seat is arranged at the top of the moving seat; the fastening and connecting assembly comprises mounting frames located on the two sides of the device platform, the mounting frames are provided with pipeline butt joint structures capable of moving in the direction perpendicular to the guide rail frame, and the mounting frames are further provided with hydraulic driving parts for driving the pipeline butt joint structures to move; and the debugging assembly comprises a first power box body located in the rectangular installation position, the output end of the first power box body is a rotating shaft located on the top of the first power box body, and a chuck is fixedly connected to the rotating shaft. The valve pressure resistance detection device has the beneficial effects that pressure resistance detection can be carried out in different states of the valve, the sealing performance of the valve element part of the valve can be detected, and the integrity of pressure resistance detection data can be ensured.

The utility model discloses a device for detecting the sealing performance of a fixed ball valve, which relates to the technical field of ball valves and comprises two flange plates in sealing fit with flow channels of the fixed ball valve and a bottom cover arranged at the bottom end of the fixed ball valve, at least one flange plate is provided with a first test hole communicated with the corresponding flow channel of the flange plate, and a second test hole communicated with the corresponding flow channel of the flange plate is arranged on the bottom cover. The first test hole is connected with a gas cylinder through a first connecting pipe, the bottom cover is provided with a second test hole communicated with the middle cavity of the fixed ball valve, and the second test hole is connected with a bubble detection bottle through a second connecting pipe. According to the scheme, the sealing performance of the fixed ball valve can be detected to the maximum precision, and the production qualification rate of the fixed ball valve is improved. And the detection device is simple in structure, convenient to mount and dismount, visual in detection result and low in detection cost.

This invention discloses an electromechanical brake with a venting device, comprising an actuator assembly, which includes a motor reduction housing, an ECU housing, and an ECU cover. The front end of the ECU housing is sealed to the ECU cover with adhesive, and the back end of the ECU housing is fixedly connected to the motor reduction housing, with a sealed connection between the back end of the ECU housing and one end of the motor reduction housing. The other end of the motor reduction housing is fixedly connected to one end of the clamp body, and the other end of the motor reduction housing is sealed to one end of a piston cylinder on the clamp body at its output end. A dustproof sealing element is provided at the other end of the piston cylinder. A venting device is installed on the back of the ECU housing, located in the gap between the ECU housing and the motor reduction housing. This venting device ensures the balance of internal and external air pressure in the electromechanical brake, thereby preventing excessive air pressure in the internal cavity of the electromechanical brake from damaging its sealing structure.

The utility model discloses a reinforced concrete pipeline detection device, which relates to the technical field of concrete pipeline detection and comprises a bottom supporting assembly, an end sealing assembly and a sliding supporting assembly. The bottom supporting assembly comprises a steel rail and a fixing support. A channel is arranged in the fixed bracket; the end sealing assembly comprises an end sealing plate, a sealing block, a water injection hole and an exhaust hole. Locking pieces are detachably arranged between the fixing support and the two blocking plates respectively. The sliding supporting assembly comprises a sliding plate, a lifting piece and a supporting piece. The lifting piece drives the reinforced concrete pipelines with different inner diameters to move upwards or downwards, so that the positions of the centers of the reinforced concrete pipelines with different inner diameters are adjusted, the locking pieces drive the end sealing plates to seal the two ends of the reinforced concrete pipelines, and meanwhile the reinforced concrete pipelines are driven by the locking pieces to be connected in an inserted mode. While the sealing performance of the reinforced concrete pipelines with different inner diameters is detected, the sealing performance of the joint of the reinforced concrete pipelines can be detected.

The invention discloses a glass door sealing performance detection technology and equipment, and relates to the technical field of sealing performance detection.The glass door sealing performance detection equipment comprises a detection box, a mounting frame is mounted at one end of the detection box, a glass door is arranged in an inner cavity of the mounting frame, an air pressure detector is mounted at the top end of the detection box, and an air inlet pipe is fixedly connected to the top end of the detection box; and a high-pressure air pump is mounted on the outer wall of the air inlet pipe. The detection box is arranged, the mounting frame matched with the glass door is selected and used, the mounting frame is mounted, the glass door is placed into the mounting frame, and the glass door is fixed; air is injected into the detection box through the air inlet pipe, the air pressure in the detection box is detected through the air pressure detector, the air pressure in the detection box is larger than the external air pressure, and whether the air pressure in the detection box is reduced or not is checked after standing for a period of time, so that the sealing performance of the glass door is detected, and detection of the sealing performance of the glass door is facilitated.

The invention discloses a welding machine for instrument manufacturing, which belongs to the technical field of instrument component welding, and comprises a welding base on which a multi-degree-of-freedom laser welding robot is installed, a manufacturing station plate is arranged on one side of the welding base, a supporting semi-axle body is fixedly arranged on the manufacturing station plate, a positioning adjustment member for positioning and clamping a spring tube is arranged on the supporting semi-axle body, a lateral push column for conveying the spring tube is fixedly connected to the end of the supporting semi-axle body, and an electric control push member is arranged inside the lateral push column for pushing the spring tube forward for conveying. The invention realizes the conveying of the spring tube through the lateral push column, and positions it during the conveying process, realizes the clamping and limiting of the spring tube through the action of the inclined surface clamping plate, ensures the accuracy of the position of the spring tube, realizes the limiting of the rotation angle of the spring tube through the blocking end block and the injection joint thereon, ensures that it can be in close contact with the base to be welded, and significantly improves the welding quality.

The present invention discloses a motor valve sealing detection device, which relates to the field of motor valve technology, and comprises a support plate, wherein the top side wall of the support plate is provided with a clearance through hole, the interior of the support plate is provided with an installation cavity, and the bottom inner wall of the installation cavity is rotatably connected with a first rotating ring. The present invention can accurately detect whether the internal sealing of the three channels of the three-way motor valve is good, and can adjust the position of the first detection shell according to the position of the main channel of the three-way motor valve, so as to facilitate the blocking of the three channels of the three-way motor valve at different angles, and realize the rapid detection of the sealing of the three-way motor valve, and at the same time, can detect the sealing of the three-way motor valves with annular distribution of the three channels and the three-way motor valves with the secondary channels vertically downward, so as to avoid the staff from replacing the adaptable operating table according to different three-way motor valves, reduce the detection efficiency, and improve the efficiency and adaptability of the device in the three-way motor valve sealing detection.

The utility model discloses a kind of safety valve individual test equipment, belong to safety valve detection technical field, including setting oil tank, test pump and safety valve to be measured, the oil outlet of oil tank is connected by first pipeline with the import of test pump intercommunication, the outlet of test pump is connected by second pipeline with the import of three-way pipe fitting;The first outlet of three-way pipe fitting is connected by third pipeline with the import of safety valve to be measured intercommunication, the outlet of safety valve to be measured is connected by fourth pipeline with the oil return flange of oil tank intercommunication, forms test loop;The second outlet of three-way pipe fitting is connected by fifth pipeline with the oil return port of oil tank intercommunication, forms oil return empty path;Switching valve assembly for oil return empty path and test loop switching is provided on three-way pipe fitting.The utility model has realized the operability of safety valve individual test, with the advantage that flexibility is high, meet the test demand of DV and DS series structure safety valve.

The present application discloses a hydraulic cylinder sealing performance testing device, which belongs to the technical field of hydraulic cylinder testing. It includes a housing; a positioning mechanism, which is arranged in the housing and is used to position the hydraulic cylinder to be tested; a testing mechanism, which is arranged on one side of the housing and is used to detect the sealing performance of the hydraulic cylinder to be tested positioned by the positioning mechanism; wherein the positioning mechanism includes: a positioning cylinder, which is used to place the hydraulic cylinder to be tested; a positioning plate assembly, which is provided in multiple numbers, and the multiple positioning plate assemblies are all arranged in the positioning cylinder, and in the working state, the multiple positioning plate assemblies are used to position the hydraulic cylinder placed in the positioning cylinder. The present application automatically positions and disassembles the hydraulic cylinder through the positioning cylinder and the multiple positioning plate assemblies, thereby solving the problem that the installation and disassembly of the hydraulic cylinder before and after the test usually rely on manual work, resulting in a more troublesome test operation, thereby achieving the technical effect of facilitating the positioning, installation and disassembly of the cylinder to be tested.

The invention relates to the technical field of industrial safety, and discloses a special gas double-sleeve conveying leakage detection device which comprises a detection mechanism, the detection mechanism comprises an outer pipe, and a gas suction unit is arranged at the bottom end of the outer pipe. According to the leakage detection device for special gas double-sleeve conveying, a first supporting frame is tightly connected with a first mounting block through a bolt, an outer pipe is fixed to the inner wall of the first supporting frame, then a first motor drives a lead screw to rotate at a constant speed, a gas suction shell can smoothly slide on the surface of the first supporting frame under the cooperation of the lead screw and a sliding rail, and a gas suction groove which is elaborately formed is formed in the bottom end of the gas suction shell; a second motor is fixed in a groove through a first mounting frame, when the second motor is started, first fan blades are driven to rapidly rotate, air suction of a lower area is achieved, an air suction shell can orderly suck air along an outer pipe through accurate control of a first motor, and when special gas leaks and especially has harmfulness, the device can rapidly suck air, the safety of the detection device is remarkably improved, and the detection efficiency is improved. And a reliable guarantee is provided for smooth proceeding of related work.

The utility model relates to cylinder cover oil atomizer bush detection technical field, concretely is a kind of cylinder cover oil atomizer bush detection two valve cylinder head press tool, including oil atomizer copper bush, first support plate and second support plate.The utility model is connected by latch bolt and bolt washer, bolt washer can be sleeved in the surface of latch bolt, then latch bolt is installed on the surface of first support plate by first slot, so that latch bolt is installed into positioning groove inside, so that latch bolt passes through second slot, oil atomizer copper bush, first support plate, second support plate and latch bolt can be fixed together by nut, oil atomizer copper bush can be supported in water, copper bush cover can be installed at copper bush mouth, gas nozzle can be installed at outer thread sleeve, oil atomizer copper bush is placed in water, gas nozzle is connected with gas source, if bubble is generated in water, then it can prove that oil atomizer copper bush is damaged, reach the effect that oil atomizer copper bush sealability can be conveniently detected.

The application discloses a lithium battery packaging airtightness detection equipment and a detection method thereof, relates to the technical field of lithium battery packaging airtightness detection, and comprises an operation table, a battery shell and a gas inlet device for inputting detection gas, further comprises a fixed cylinder for receiving the gas inlet device, a piston plate slidingly arranged in the fixed cylinder and driven by gas pressure, an adjusting unit drivingly connected with the piston plate and used for simulating a damaged state of the battery shell sealing, and a limiting unit drivingly connected with the piston plate and used for cooperating with the adjusting unit to change the sealing state of the battery shell. The application simulates the damaged state of the sealing gasket through the interaction of the upper magnet and the lower magnet, realizes the effect of detecting the sealing performance of the lithium battery shell after being used for a period of time, and observes whether the dye leaks through the cooperation of the transparent mark frame arranged on the battery shell and the fluorescent dye, so that the airtightness of the battery shell is detected.

The utility model discloses an automobile oil seal aluminum gasket sealing performance detection device comprising a rack, a detection bench is arranged on the rack, and a valve oil seal is arranged on the detection bench; the top of the rack is provided with a detection mechanism, the output end of the detection mechanism is provided with a connector, the connector is in interference connection with the valve oil seal, and the size of the connector can be selectively set; and a main control device is arranged on one side of the rack. According to the device, the size of the connector can be selectively set, and under the synergistic effect of the driving assembly, the connectors of different sizes can be conveniently disassembled and assembled so as to adapt to sealing performance detection of valve oil seals of different sizes; the sealing performance of the valve oil seal can be detected according to the air pressure change in the sealing cover through a pressure sensor in the detection mechanism and matching with the main control device.

This invention relates to the field of subway air conditioning testing technology, specifically disclosing an air conditioning pipeline sealing test device, comprising: a sealing cover, an inflation port, a vent, an electronic pressure gauge, and a connecting pipe. Two sealing covers are provided; one sealing cover has an inflation port communicating with its inner cavity at its front bottom, and the other sealing cover has a vent port communicating with its inner cavity at its front bottom. The electronic pressure gauge is positioned at the front top of one of the sealing covers, and its inner cavity is connected to the inner cavity of the sealing cover. The connecting pipe is located at the front middle of the sealing cover, and its inner cavity is connected to the inner cavity of the connecting pipe. This device can quickly and accurately detect the sealing performance of subway air conditioning pipelines and rapidly locate the leak point when a leak is detected, improving testing efficiency and accuracy while reducing maintenance costs and time.

The invention relates to the technical field of powder-liquid double-chamber bag detection, and discloses a powder-liquid double-chamber bag sealing detection device, comprising a detection box, a box cover is hingedly provided on the top of the detection box, a base for placing the powder-liquid double-chamber bag is arranged in the detection box, a pressure-supplying mechanism for applying pressure to the powder-liquid double-chamber bag on the base is provided on the box cover, a detection tray is provided at the bottom of the base, a waste liquid collecting mechanism, a drying mechanism and a cleaning mechanism are arranged in the detection box, the detection tray detects leaked liquid through a detector, the waste liquid collecting mechanism collects leaked liquid, the cleaning mechanism cleans the base and the waste liquid collecting mechanism, the drying mechanism cleans the base and the waste liquid collecting mechanism and then performs hot air drying, the device realizes multiple detection work of the powder-liquid double-chamber bag, including sealing detection of the finished powder-liquid double-chamber bag, sealing and penetration pressure detection of virtual welds, destructive detection of powder bags and liquid bags in different areas, and penetration pressure detection of virtual welds under simulated transportation conditions, and has strong practicality.

The utility model discloses equipment for monitoring thermal expansion of epoxy resin adhesive in real time, which comprises a closed container and a heating device, the heating device is used for heating a sample in the container, the container is filled with colored liquid, and the container can be used for monitoring liquid level change and temperature change; the liquid temperature monitoring device can monitor the temperature of liquid in real time, distilled water harmless to human bodies can be adopted as the liquid, the environment is not affected, and the liquid temperature monitoring device has the outstanding advantages of being simple, practical and easy to popularize.

The utility model discloses a valve sealing performance detection device, which belongs to the technical field of valve sealing performance detection, and comprises a connecting and fixing mechanism, a pressing assembly, an injection assembly, a detection box, an observation window, a connecting plate, a support plate and a valve, and the connecting and fixing mechanism comprises a fixing assembly and a connecting assembly. The fixing assembly can be connected with the connecting assembly, the connecting assembly can be used for connecting and supporting the valve so as to be matched with the fixing assembly for use, the valve can be clamped and fixed, the abutting assembly can abut against the valve so as to be matched with the connecting and fixing mechanism for use, and one end of the valve can be sealed; meanwhile, the abutting assembly can be connected with an external inflator pump with data display, so that air injection treatment can be conducted on the interior of the valve, the injection assembly can conduct water injection treatment on the interior of the detection box, the connection fixing mechanism and the abutting assembly are matched for use, the sealing performance effect of the valve can be detected, and the defect position of the valve can be determined.

The utility model provides a kind of hose wall quality detection device and hose production line, belong to pipe manufacturing field, including respectively being equipped with the first sealing element and second sealing element in the both ends of hose to be detected;Wherein, first sealing element includes first telescopic link, first expansion ring and first limit block, first limit block is equipped with the first through hole of sliding adaptation with first telescopic link, first telescopic link one end is driven by external force and moves axially, and the other end is axially locked and is equipped with first expansion ring, with the movement of first telescopic link, first expansion ring is extruded by first limit block axially and expands radially, and with the inner wall sealing connection of one end of hose to be detected;Second sealing element structure refers to first sealing element;First telescopic link and / or the second telescopic link in the air flow channel that can be communicated with hose to be detected and supply pressure pipeline are equipped with.Compared with prior art, the utility model solves the technical problem that the existing hose detection equipment cannot detect the problem of internal damage.

The present invention relates to a detection device, and in particular to a device for detecting the tightness of building material waterproof pipes. It is necessary to design a device for detecting the tightness of building material waterproof pipes that can detect the tightness of water pipes and has high work efficiency. A device for detecting the tightness of building material waterproof pipes includes a supporting bottom box, a sealing top plate, a supporting stand, and a pressurized glass window, etc. The upper rear side of the supporting bottom box is hingedly provided with a sealing top plate, the lower part of the supporting bottom box is fixedly connected to the supporting stand, and the middle of the front of the supporting bottom box is fixedly connected to a pressurized glass window for observation. The present invention starts the pressurized air pump to blow air into the water pipe through the air inlet pipe, and the airflow then flows back to the buffer cylinder through the return air pipe, and finally discharged back to the pressurized air pump. If the water pipe leaks, the gas passes through the wind measuring pipe to make the forced impeller start to rotate, and the photoelectric sensor will detect the rotation of the forced impeller and send a signal. In this way, the tightness of the water pipe can be detected with high work efficiency.