Valve pressure test work detection platform

Abstract

The invention discloses a valve pressure test work detection platform, and relates to the technical field of valves, the valve pressure test work detection platform comprises a platform main body, support columns, a placement plate and a mounting plate, the top of the mounting plate is fixedly provided with a cylinder, an output rod at one end of the cylinder is fixedly connected with an upper cover cylinder, and the top of the platform main body is symmetrically provided with lower cover cylinders; during detection, leakage point monitoring can be conducted through cooperation of the multiple detection frames and the detection block, when leakage occurs at the closed position of the butterfly plate and the inner cavity of the butterfly valve, leaked gas media can be used for pushing the detection block to descend, and the marking cylinders at the corresponding positions can conduct spraying marking on leakage point positions through the nozzles; the leakage position in the valve cavity is accurately recorded, the leakage point position does not need to be manually found, subsequent maintenance personnel can conveniently return to a factory for maintenance, and then the detection convenience of the detection platform is improved.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a valve pressure testing working detection platform. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they are divided into shut-off valves, check valves, regulating valves, etc. Valves used in fluid control systems, from the simplest stop valves to various valves used in extremely complex automatic control systems, have a wide variety of varieties and specifications, especially butterfly valves, which have the advantages of relatively simple structure, relatively easy manufacturing, and relatively low cost, making butterfly valves the first choice in many industrial applications. The valve pressure test bench is a device used for valve performance testing. It is mainly used to detect key performance indicators such as valve strength, sealing, and leakage to ensure that the valve can meet the design requirements and safety standards in actual applications.

[0003] In the sealing test process of butterfly valves, the conventional process is to manually place the butterfly valve in the test position and fix it. At this time, the butterfly plate in the butterfly valve is in a closed state. Then, the valve cavity of the butterfly valve is closed from one end and gas medium is introduced until the pressure in the valve cavity on the closed side rises to the set test pressure. Then, the pressure holding stage is entered. In this stage, the medium pressure needs to be kept stable, and the sealing performance of the butterfly valve is confirmed to be qualified by observing whether the pressure gauge reading changes. However, after the pressure gauge reading changes, the staff cannot know the specific leakage point of the butterfly valve cavity. It is necessary to observe whether there is medium leakage from the valve and its connection parts, or manually apply soapy water foam to the suspected leakage part to observe whether bubbles are generated, which makes inspection and judgment inconvenient and highly dependent on the inspectors. The staff will miss or misjudge during inspection and judgment, and automatic screening and classification cannot be achieved. The qualified or not needs to be manually classified by the staff, and the degree of automation is low. Summary of the invention

[0004] The purpose of the present invention is to provide a valve pressure test working detection platform to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a valve pressure test working detection platform, comprising a platform body, a support column, a placement plate, and a mounting plate, a cylinder is fixedly mounted on the top of the mounting plate, and an output rod at one end of the cylinder is fixedly connected to an upper cover cylinder, a lower cover cylinder is symmetrically arranged on the top of the platform body, and the bottom of the lower cover cylinder is fixedly connected to an output rod at one end of another cylinder; The inner wall of the lower cover cylinder is symmetrically provided with leakage point detection mechanisms at equal distances, so that during detection, the leakage position of the butterfly valve can be spray-marked and the leakage position in the valve cavity can be accurately recorded; The two side walls of the platform body are symmetrically provided with automatic screening mechanisms, so that when unqualified valves are detected, the material discharge direction of the butterfly valve can be changed, and qualified and unqualified valves can be automatically screened and collected.

[0006] Preferably, the leakage point detection mechanism includes a detection frame, and a side wall of the detection frame is fixedly connected to the inner wall of the lower cover tube, the inner wall of the detection frame is slidably connected with a detection block, and the bottom of the detection block is fixedly connected with a lifting rod 1, the side wall of the detection frame facing the paint tube is fixedly connected with a marking tube, and the outer wall of the marking tube is fixedly connected with an infusion tube, the inner wall of the infusion tube is slidably connected with a piston, and the bottom of the piston is fixedly connected with a lifting rod 2, the bottom of the lifting rod 2 is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected to the bottom of the lifting rod 1.

[0007] Preferably, a delivery tube is fixedly connected to the bottom of the marking tube, and the other end of the delivery tube is fixedly connected to the outer wall of the infusion tube, a nozzle is fixedly installed on the top of the marking tube, an extraction tube is fixedly connected to the outer wall of the other side of the infusion tube, a paint tube is fixedly installed on the inner wall of the lower cover tube, and the other end of the extraction tube is fixedly connected to the top of the paint tube, an air pump is fixedly installed on the top of the platform body, and detection tubes are fixedly installed on both side walls of the air pump corresponding to the upper cover tube, the other end of the detection tube is fixedly connected to the outer wall of the upper cover tube, an entry hole is penetrated through the bottom of the placement plate corresponding to the lower cover tube, and the outer wall of the lower cover tube is slidably matched with the inner wall of the entry hole, a pressure plate is slidably connected to the inner wall of the lower cover tube corresponding to the connecting rod, and a reset column is symmetrically fixedly connected to the bottom of the placement plate corresponding to the automatic screening mechanism.

[0008] Preferably, the automatic screening mechanism includes a trigger block, a trigger groove is penetrated by an outer wall of one side of the lower cover cylinder corresponding to the trigger block, and the outer wall of the trigger block slides in fit with the inner wall of the trigger groove, and the side wall of the trigger block facing the pressure plate is inclined, and the top of the platform body is fixedly connected with a fixed cylinder corresponding to the trigger block, and the inner wall of the fixed cylinder is slide-fitted with a sliding column, the outer wall of the sliding column is fixedly connected with a connecting tube, and the inner wall of the connecting tube is connected with the inner wall of the fixed cylinder, and the other end of the connecting tube is fixedly connected with a mounting cylinder, and the inner wall of the connecting tube is connected with the inner wall of the mounting cylinder.

[0009] Preferably, one end face of the mounting cylinder is fixedly connected to a material unloading ramp, and one side wall adjacent to the two material unloading ramps is fixedly connected to the outer walls of both sides of the placing plate, the inner wall of the mounting cylinder is rotatably connected to a rotating rod, and the outer wall of the other end of the rotating rod is fixedly connected to a guide baffle, the outer wall of the rotating rod is fitted with a torsion spring, one end of the torsion spring overlaps the inner wall of the mounting cylinder, and the other end of the torsion spring overlaps the outer wall of the rotating rod, the inner wall of the mounting cylinder is fitted and slidably connected to a trigger disk, a spiral groove is correspondingly provided on the outer wall of the rotating rod, a ball is fixedly connected to the spiral groove corresponding to the inside of the trigger disk, and the outer wall of the ball fits and slides with the inner wall of the spiral groove.

[0010] Preferably, the outer wall of the trigger disk is symmetrically fixedly connected to the limiting block, the inner wall of the mounting cylinder is provided with a limiting groove corresponding to the limiting block, and the outer wall of the limiting block slides in contact with the inner wall of the limiting groove, the outer walls on both sides of the platform body are fixedly connected to a collecting box corresponding to the unloading ramp, and the inner center of the collecting box is fixedly connected to a partition plate corresponding to the unloading ramp, and a sponge pad is symmetrically fixedly installed on the inner wall of the collecting box.

[0011] Preferably, a circular groove is provided on the top of the trigger block, and a first spring is fixedly connected to the inner wall of the circular groove, the other end of the first spring is fixedly connected to a blocking column, and the outer wall of the blocking column slides in fit with the inner wall of the circular groove, a sliding groove is provided on the bottom inner wall of the lower cover tube, and the bottom of the trigger block slides in fit with the inner wall of the sliding groove, a second spring is fixedly connected to one side wall of the trigger block facing the paint tube, and the other end of the second spring is fixedly connected to the inner wall of the sliding groove, a unloading component is provided on one side wall of the placement plate, and a feeding component is provided on the other side wall of the placement plate.

[0012] Preferably, the unloading component includes a support block, and one side wall of the support block is fixedly connected to a side wall of the placing plate, a driving motor is fixedly installed on one side of the support block, and an output shaft at one end of the driving motor is fixedly connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to a connecting frame at equal distances, and the other end of the connecting frame is fixedly connected to a unloading push block, and the outer wall threads of the threaded rod are oppositely arranged.

[0013] Preferably, the feeding component includes a loading rack, and a side wall of the loading rack is fixedly connected to a side wall of the placement plate, an electric push rod 1 is fixedly installed on the bottom inner wall of the loading rack, and an output rod at one end of the electric push rod 1 is fixedly connected to a lifting plate, a side wall of the lifting plate away from the placement plate is provided with a conveyor belt, and a placement groove is correspondingly provided on the top of the lifting plate, a side wall of the loading rack away from the placement plate is fixedly connected to a support plate, and an electric push rod 2 is fixedly installed on a side wall of the support plate away from the placement plate, and an output rod at one end of the electric push rod 2 is fixedly connected to a loading push block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. During the inspection, leakage point monitoring can be carried out through the cooperation of multiple inspection racks and inspection blocks. When leakage occurs in the closed part of the butterfly plate and the inner cavity of the butterfly valve, the leaked gas medium can be used to push the inspection block down, so that the marking tube at the corresponding position can be sprayed and marked on the leakage point through the nozzle, and the leakage position in the valve cavity can be accurately recorded. There is no need to manually find the leakage point, which is convenient for subsequent maintenance personnel to return to the factory for maintenance, which is conducive to improving the detection convenience of this inspection platform.

[0015] 2. During the inspection, qualified valves can be collected collectively through the cooperation of the discharge ramp and the guide baffle. At the same time, when a leakage problem is detected in the current valve, the guide baffle can be rotated through the cooperation of the trigger block and the pressure plate, thereby changing the flow direction of the discharge ramp at this time. There is no need for manual classification, and qualified and unqualified valves can be automatically screened and collected, and automatic loading can be realized, with a high degree of automation, which is beneficial to improving the detection efficiency of this detection platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall rear view structure of the present invention; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 It is a schematic diagram of the structure inside the lower cover cylinder of the present invention; Figure 5 It is a structural schematic diagram of the leakage point detection mechanism of the present invention; Figure 6 It is a structural schematic diagram of the first part of the automatic screening mechanism of the present invention; Figure 7 It is a structural schematic diagram of the second part of the automatic screening mechanism of the present invention; Figure 8 It is a structural schematic diagram of the third part of the automatic screening mechanism of the present invention; Fig. 9 It is a schematic structural diagram of the blanking component and the feeding component of the present invention.

[0017] In the figure: 1. platform body; 2. support column; 3. placement plate; 4. installation plate; 5. cylinder; 6. upper cover cylinder; 7. lower cover cylinder; 10. air pump; 11. detection tube; 12. insertion hole; 13. paint cylinder; 14. pressure plate; 15. reset column; 8. leakage detection mechanism; 801. detection frame; 802. detection block; 803. lifting rod 1; 804. marking cylinder; 805. infusion cylinder; 806. piston; 807. lifting rod 2; 808. connecting rod; 809. delivery pipe; 810. nozzle; 811. extraction pipe; 9. automatic screening mechanism; 901. trigger block; 902. trigger slot; 903. fixed cylinder; 904. sliding column; 905. connecting pipe; 906. installation cylinder; 907. unloading ramp; 908. rotating Rod; 909, guide baffle; 910, torsion spring; 911, trigger disk; 912, spiral groove; 913, limit block; 914, limit groove; 915, collection box; 916, partition plate; 917, sponge pad; 918, round groove; 919, first spring; 920, stop column; 921, slide groove; 922, second spring; 16, unloading component; 1601, support block; 1602, drive motor; 1603, threaded rod; 1604, connecting frame; 1605, unloading push block; 17, feeding component; 1701, loading rack; 1702, electric push rod one; 1703, lifting plate; 1704, conveyor belt; 1705, placement slot; 1706, support plate; 1707, electric push rod two; 1708, loading push block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] For example, see Figure 1-9 The present invention provides a valve pressure test working detection platform, comprising a platform body 1, a support column 2, a placement plate 3, and a mounting plate 4, a cylinder 5 is fixedly mounted on the top of the mounting plate 4, and an output rod at one end of the cylinder 5 is fixedly connected to an upper cover tube 6, a lower cover tube 7 is symmetrically arranged on the top of the platform body 1, and the bottom of the lower cover tube 7 is fixedly connected to an output rod at one end of another cylinder 5; The inner wall of the lower cover cylinder 7 is symmetrically provided with leakage point detection mechanisms 8 at equal distances, so that during detection, the leakage position of the butterfly valve can be spray-marked and the leakage position in the valve cavity can be accurately recorded; Further, the leakage point detection mechanism 8 includes a detection frame 801, and a side wall of the detection frame 801 is fixedly connected to the inner wall of the lower cover tube 7, the inner wall of the detection frame 801 is slidably connected to the detection block 802, and the bottom of the detection block 802 is fixedly connected to the lifting rod 1 803, the side wall of the detection frame 801 facing the paint tube 13 is fixedly connected to the marking tube 804, and the outer wall of the marking tube 804 is fixedly connected to the infusion tube 805, the inner wall of the infusion tube 805 is slidably connected to the piston 806, and the bottom of the piston 806 is fixedly connected to the lifting rod 2 807, the bottom of the lifting rod 2 807 is fixedly connected to the connecting rod 808, and the other end of the connecting rod 808 is fixedly connected to the bottom of the lifting rod 1 803; In this embodiment, during the detection process, the butterfly valve is first loaded and transported by the conveyor belt 1704 to the placement groove 1705 of the lifting plate 1703, and then the two butterfly valves are driven to rise by the electric push rod 1702 until they are flush with the placement plate 3, and then the two butterfly valves are pushed onto the placement plate 3 and located between the upper cover cylinder 6 and the lower cover cylinder 7 by the electric push rod 2 using the loading push block 1708, so as to realize automatic loading; Then, the cylinder 5 is used to synchronously drive the upper cover tube 6 and the lower cover tube 7 to approach each other. First, the bottom of the upper cover tube 6 will fit and squeeze with one end of the butterfly valve to form a sealed space in cooperation with the butterfly plate in the closed state in the butterfly valve. Then, an air pump 10 is fixedly installed on the top of the platform body 1, and detection tubes 11 are fixedly installed on the two side walls of the air pump 10 corresponding to the upper cover tube 6, and the other end of the detection tube 11 is fixedly connected to the outer wall of the upper cover tube 6, so that the air pump 10 can transport the gas medium to the inside of the butterfly valve in a sealed state through the detection tube 11 until the pressure in the valve cavity on the closed side rises to the set test pressure, and then the sealing performance of the butterfly valve is confirmed to be qualified by observing whether the pressure gauge reading changes; Then, when the upper cover tube 6 is pressed and fixed with one end of the butterfly valve, the lower cover tube 7 will continue to extend until it is close to the butterfly plate. Furthermore, since there is a protruding valve stem in the butterfly plate, the multiple detection racks 801 are symmetrically arranged at equal distances to avoid the protruding valve stem position, and the top heights of the multiple detection racks 801 are slightly higher than the top height of the lower cover tube 7, that is, when the top of the lower cover tube 7 contacts the valve stem, the tops of the multiple detection racks 801 will be synchronously fitted with the surface of the butterfly plate. When a gap appears between the butterfly plate and the inner cavity of the valve, causing leakage, the gas medium ejected from the leakage position will spray gas to one or more detection racks 801 close to the position, so that the slidable detection block 802 is pressed to slide downward; At this time, the bottom of the detection block 802 is fixedly connected with the lifting rod 1 803, and the inner wall of the infusion cylinder 805 is slidably connected with the piston 806, and the bottom of the piston 806 is fixedly connected with the lifting rod 2 807, and at the same time, the bottom of the lifting rod 2 807 is fixedly connected with the connecting rod 808, and the other end of the connecting rod 808 is fixedly connected to the bottom of the lifting rod 1 803, so that the lifting rod 1 803 can synchronously drive the lifting rod 2 807 to descend through the connecting rod 808, so that the piston 806 moves downward and The pigment in the infusion cylinder 805 is pushed, and then the delivery tube 809 is fixedly connected to the bottom of the marking cylinder 804, and the other end of the delivery tube 809 is fixedly connected to the outer wall of the infusion cylinder 805, and the top of the marking cylinder 804 is fixedly installed with a nozzle 810, so that the pigment can be sprayed and marked in the direction of the leakage position through the delivery tube 809 through the piston 806 through the nozzle 810, and the leakage position in the valve cavity is accurately recorded, without the need to manually find the leakage point, which is convenient for subsequent maintenance personnel to return to the factory for maintenance; As described above, during detection, leakage point monitoring can be carried out through the cooperation of multiple detection racks 801 and detection blocks 802. When leakage occurs in the sealed area between the butterfly plate and the inner cavity of the butterfly valve, the leaked gas medium can be used to push the detection block 802 down, so that the marking tube 804 at the corresponding position can be sprayed and marked on the leakage point through the nozzle 810, and the leakage position in the valve cavity is accurately recorded. There is no need to manually find the leakage point, which is convenient for subsequent maintenance personnel to return to the factory for maintenance, which is beneficial to improving the detection convenience of this detection platform.

[0020] Embodiment 2: Based on the above embodiment, automatic screening mechanisms 9 are symmetrically arranged on both side walls of the platform body 1 .

[0021] Furthermore, the automatic screening mechanism 9 includes a trigger block 901, and a trigger groove 902 is formed through the outer wall of one side of the lower cover cylinder 7 corresponding to the trigger block 901, and the outer wall of the trigger block 901 fits and slides with the inner wall of the trigger groove 902, and the side wall of the trigger block 901 facing the pressure plate 14 is inclined, and the top of the platform body 1 is fixedly connected with a fixed cylinder 903 corresponding to the trigger block 901, and the inner wall of the fixed cylinder 903 is fitted and slidably connected with a sliding column 904, the outer wall of the sliding column 904 is fixedly connected with a connecting pipe 905, and the inner wall of the connecting pipe 905 is connected with the inner wall of the fixed cylinder 903, and the other end of the connecting pipe 905 is fixedly connected with a mounting cylinder 906, and the inner wall of the connecting pipe 905 is connected with the inner wall of the mounting cylinder 906; In this embodiment, when the detection is completed, a driving motor 1602 is fixedly installed on one side of the support block 1601, and the output shaft at one end of the driving motor 1602 is fixedly connected to the threaded rod 1603, and the outer wall of the threaded rod 1603 is threadedly connected to the connecting frame 1604 at equal distances, and at the same time, the other end of the connecting frame 1604 is fixedly connected to the unloading push block 1605, and the outer wall threads of the threaded rod 1603 are arranged in opposite directions, so that the driving motor 1602 can drive the threaded rod 1603 to rotate, so that the two unloading push blocks 1605 move away from each other to push the valve that has been detected to the direction of the unloading ramp 907; Then, a material discharge ramp 907 is fixedly connected through one end face of the mounting cylinder 906, and one side wall of the two material discharge ramps 907 close to each other is fixedly connected to the outer walls of both sides of the placement plate 3, and the inner wall of the mounting cylinder 906 is rotatably connected to a rotating rod 908, and at the same time, a guide baffle 909 is fixedly connected to the outer wall of the other end of the rotating rod 908, and a torsion spring 910 is fitted on the outer wall of the rotating rod 908, and one end of the torsion spring 910 overlaps the inner wall of the mounting cylinder 906, and at the same time, the other end of the torsion spring 910 overlaps the outer wall of the rotating rod 908, so that in a normal state, the guide baffle 909 is in an inclined state under the control of the torsion spring 910, that is, in a qualified detection state, the inclined guide baffle 909 is used to guide the butterfly valve to the material discharge ramp 907 away from the side wall of the platform body 1 and slide down close to it; Then, when leakage occurs, the current butterfly valve is a substandard product. The inner wall of the lower cover cylinder 7 is fitted and slidably connected with the pressure plate 14 corresponding to the connecting rod 808, and the outer wall of one side of the lower cover cylinder 7 corresponds to the trigger block 901 and is penetrated by a trigger groove 902, and the outer wall of the trigger block 901 is fitted and slid with the inner wall of the trigger groove 902, and at the same time, the trigger block 901 is inclined toward the side wall of the pressure plate 14, so that when the connecting rod 808 is lowered, the pressure plate 14 is squeezed synchronously, so that the pressure plate 14 squeezes the inclined surface of the trigger block 901 downward, so that the trigger block 901 moves outward. The trigger block 901 is moved, and then the fixed cylinder 903 is fixedly connected to the corresponding trigger block 901 at the top of the platform body 1, and the inner wall of the fixed cylinder 903 is slidably connected to the sliding column 904, so that the trigger block 901 will squeeze the sliding column 904 in the subsequent downward movement path. Then, when the trigger block 901 moves outward to the maximum distance, the upper cover cylinder 6 and the lower cover cylinder 7 are controlled to separate synchronously, so that the trigger block 901 can be synchronously driven by the lower cover cylinder 7 to move downward and squeeze the sliding column 904, so that the sliding column 904 moves downward in the inner wall of the fixed cylinder 903 and compresses the air. At this time, the connecting pipe 905 is fixedly connected to the outer wall of the sliding column 904, and the inner wall of the connecting pipe 905 is connected to the inner wall of the mounting tube 906, and the inner wall of the mounting tube 906 is slidably connected to the trigger disk 911, and at the same time, the outer wall of the rotating rod 908 is correspondingly provided with a spiral groove 912, and the inside of the trigger disk 911 is fixedly connected with a ball corresponding to the spiral groove 912, and the outer wall of the ball is slidably matched with the inner wall of the spiral groove 912, and at the same time, the outer wall of the trigger disk 911 is symmetrically fixedly connected to the limiting block 913, and the inner wall of the mounting tube 906 is provided with a limiting groove 914 corresponding to the limiting block 913, and the outer wall of the limiting block 913 is slidably matched with the inner wall of the limiting groove 914, so that the compression of air can be used to push the synchronous pair The trigger plate 911 is pushed to move the trigger plate 911, and then the trigger plate 911 can only slide but not rotate due to the restriction of the limit block 913 and the limit groove 914, so that the guide baffle 909 is rotated under the drive of the ball and the spiral groove 912, thereby changing the flow direction of the discharge ramp 907 at this time. At this time, the collection box 915 is fixedly connected to the discharge ramp 907 through the outer walls on both sides of the platform body 1, and the inner center of the collection box 915 is fixedly connected to the discharge ramp 907, and the sponge pad 917 is symmetrically fixedly installed on the inner wall of the collection box 915, so that the collection box 915 can be separated by the partition plate 916, and the qualified and unqualified valves can be automatically screened and collected; Then, when the screening and collection of unqualified products is completed, the next butterfly valve loading is completed, and the upper cover cylinder 6 and the lower cover cylinder 7 are close to each other again. In this process, the slide column 904 is no longer squeezed, so that the guide baffle 909 can be automatically rotated back to its original position by the reset elastic force of the torsion spring 910. Further, after the trigger block 901 moves outward to the maximum distance, a circular groove 918 is opened on the top of the trigger block 901, and the inner wall of the circular groove 918 is fixedly connected to the first spring 919, and the other end of the first spring 919 is fixedly connected to the stop column 920, so that the first spring 919 can be used to drive the stop column 920 to pop out, so as to limit the current position of the trigger block 901 and avoid the failure of squeezing the slide column 904 due to retraction; At the same time, when the lower cover tube 7 is rising, a reset column 15 is symmetrically fixedly connected to the automatic screening mechanism 9 through the bottom of the placement plate 3, so that when the lower cover tube 7 rises to the maximum distance, the pop-up blocking column 920 can be pressed back into the circular groove 918 through the reset column 15. At this time, a sliding groove 921 is opened through the bottom inner wall of the lower cover tube 7, and the bottom of the trigger block 901 slides in contact with the inner wall of the sliding groove 921, and the trigger block 901 is fixedly connected to a side wall of the paint tube 13 with a second spring 922, and the other end of the second spring 922 is fixedly connected to the inner wall of the sliding groove 921, so that the second spring 922 can be used to The trigger block 901 is pulled back to its original position, and then the pressure plate 14 can be pushed back to its original position by using the inclined surface, so that the detection block 802 is returned to its original position. In this process, an extraction tube 811 is fixedly connected to the outer wall of the other side of the infusion cylinder 805, and a paint cylinder 13 is fixedly installed on the inner wall of the lower cover cylinder 7, and the other end of the extraction tube 811 is fixedly connected to the top of the paint cylinder 13. At the same time, a one-way valve is installed in the extraction tube 811 and the delivery tube 809, so that the principle of the one-way valve can be used to extract the paint in the infusion cylinder 805 from the paint cylinder 13 when the piston 806 rises and resets, thereby completing the entire reset process; As described above, during the inspection, the qualified valves can be collected together through the cooperation of the discharge ramp 907 and the guide baffle 909. At the same time, when a leakage problem is detected in the current valve, the trigger block 901 and the pressure plate 14 can be used to rotate the guide baffle 909, thereby changing the flow direction of the discharge ramp 907 at this time. There is no need for manual classification, and qualified and unqualified valves can be automatically screened and collected, and automatic loading can be achieved, with a high degree of automation, which is beneficial to improving the inspection efficiency of the present inspection platform.

[0022] Working principle: First, the butterfly valve is loaded and transported by the conveyor belt 1704 to the placement groove 1705 of the lifting plate 1703, and then the electric push rod 1 1702 drives the two butterfly valves to rise until they are flush with the placement plate 3, and then the electric push rod 2 uses the loading push block 1708 to push the two butterfly valves onto the placement plate 3 and between the upper cover cylinder 6 and the lower cover cylinder 7 to realize automatic loading; Then, the cylinder 5 is used to synchronously drive the upper cover cylinder 6 and the lower cover cylinder 7 to approach each other. First, the bottom of the upper cover cylinder 6 will fit and squeeze one end of the butterfly valve to form a sealed space with the butterfly plate in the closed state of the butterfly valve. At this time, the air pump 10 can transport the gas medium to the inside of the butterfly valve in the sealed state through the detection tube 11 until the pressure in the valve cavity on the closed side rises to the set test pressure, and then confirm whether the sealing performance of the butterfly valve is qualified by observing whether the pressure gauge reading changes; Then, when the upper cover tube 6 is pressed and fixed with one end of the butterfly valve, the lower cover tube 7 will continue to extend until it is close to the butterfly plate. When the top of the lower cover tube 7 contacts the valve stem, the tops of multiple detection racks 801 will be synchronously fitted with the surface of the butterfly plate. When a gap appears between the butterfly plate and the inner cavity of the valve, causing leakage, the gas medium ejected from the leakage position will spray gas to one or more detection racks 801 close to the position, so that the slidable detection block 802 is pressed to slide downward; The lifting rod 1 803 can synchronously drive the lifting rod 2 807 to descend through the connecting rod 808, so that the piston 806 moves downward and pushes the pigment in the infusion tube 805, so that the pigment can be sprayed and marked in the direction of the leakage position through the nozzle 810 by the piston 806 and the delivery tube 809, and the leakage position in the valve cavity is accurately recorded, without the need for manual search for the leakage point, which is convenient for subsequent maintenance personnel to return to the factory for maintenance; Then, when the test is qualified, the threaded rod 1603 is driven to rotate by the driving motor 1602, so that the two feed push blocks 1605 move away from each other to push the tested valve toward the feed ramp 907, and the inclined guide baffle 909 is used to guide the butterfly valve to the side wall of the feed ramp 907 away from the platform body 1 and slide down close to it; When the current butterfly valve is a substandard product, the connecting rod 808 will simultaneously squeeze the pressure plate 14 when it descends, so that the pressure plate 14 squeezes the inclined surface of the trigger block 901 downward, so that the trigger block 901 moves outward, so that the trigger block 901 will squeeze the sliding column 904 in the subsequent downward movement path. Then, when the trigger block 901 moves outward to the maximum distance, the upper cover cylinder 6 and the lower cover cylinder 7 are controlled to separate synchronously, so that the trigger block 901 can be synchronously driven by the lower cover cylinder 7 to move downward and squeeze the sliding column 904, so that the sliding column 904 moves downward in the inner wall of the fixed cylinder 903 and compresses and pushes the air. Then, the compressed air can be used to synchronously push the trigger disk 911, so that the trigger disk 911 moves. Then, due to the restrictions of the limit block 913 and the limit groove 914, the trigger disk 911 can only slide but not rotate. Therefore, the guide baffle 909 is rotated under the drive of the ball and the spiral groove 912, thereby changing the flow direction of the discharge ramp 907 at this time, and the partition plate 916 is used to separate the collection box 915, and the qualified and unqualified valves are automatically screened and collected.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve pressure test working detection platform, comprising a platform body (1), a support column (2), a placement plate (3), and a mounting plate (4), characterized in that: A cylinder (5) is fixedly mounted on the top of the mounting plate (4), and an output rod at one end of the cylinder (5) is fixedly connected to an upper cover cylinder (6); a lower cover cylinder (7) is symmetrically arranged on the top of the platform body (1), and the bottom of the lower cover cylinder (7) is fixedly connected to an output rod at one end of another cylinder (5); The inner wall of the lower cover cylinder (7) is symmetrically and equidistantly provided with leakage point detection mechanisms (8) so as to spray-mark the leakage position of the butterfly valve during detection and record the leakage position in the valve cavity; Automatic screening mechanisms (9) are symmetrically arranged on both side walls of the platform body (1) so as to change the material discharge direction of the butterfly valve when unqualified valves are detected, and automatically screen and collect qualified and unqualified valves.

2. A valve pressure test working detection platform according to claim 1, characterized in that: The leakage point detection mechanism (8) comprises a detection frame (801), and a side wall of the detection frame (801) is fixedly connected to the inner wall of the lower cover tube (7); the inner wall of the detection frame (801) is slidably connected to a detection block (802), and the bottom of the detection block (802) is fixedly connected to a lifting rod 1 (803); a side wall of the detection frame (801) facing the paint tube (13) is fixedly connected to a marking tube (804), and the outer wall of the marking tube (804) is fixedly connected to an infusion tube (805); the inner wall of the infusion tube (805) is slidably connected to a piston (806), and the bottom of the piston (806) is fixedly connected to a lifting rod 2 (807); the bottom of the lifting rod 2 (807) is fixedly connected to a connecting rod (808), and the other end of the connecting rod (808) is fixedly connected to the bottom of the lifting rod 1 (803).

3. A valve pressure test working detection platform according to claim 2, characterized in that: The bottom of the marking tube (804) is fixedly connected to a delivery tube (809), and the other end of the delivery tube (809) is fixedly connected to the outer wall of the infusion tube (805); the top of the marking tube (804) is fixedly installed with a nozzle (810); the other side outer wall of the infusion tube (805) is fixedly connected to an extraction tube (811); the inner wall of the lower cover tube (7) is fixedly installed with a pigment tube (13), and the other end of the extraction tube (811) is fixedly connected to the top of the pigment tube (13); the top of the platform body (1) is fixedly installed with an air pump (10), and the two side walls of the air pump (10) correspond to the upper cover. The cylinder (6) is fixedly mounted with a detection tube (11), the other end of the detection tube (11) is fixedly connected to the outer wall of the upper cover cylinder (6), the bottom of the placement plate (3) corresponds to the lower cover cylinder (7) and is provided with an insertion hole (12), and the outer wall of the lower cover cylinder (7) is slidably matched with the inner wall of the insertion hole (12), the inner wall of the lower cover cylinder (7) is slidably connected with a pressure plate (14) corresponding to the connecting rod (808), and the bottom of the placement plate (3) corresponds to the automatic screening mechanism (9) and is symmetrically fixedly connected with a reset column (15); the automatic screening mechanism (9) includes a trigger block (901), and the lower cover cylinder A trigger groove (902) is formed through an outer wall of one side of the platform body (7) corresponding to the trigger block (901), and the outer wall of the trigger block (901) is fitted and slidably connected to the inner wall of the trigger groove (902); a side wall of the trigger block (901) facing the pressure plate (14) is in an inclined shape; a fixed cylinder (903) is fixedly connected to the top of the platform body (1) corresponding to the trigger block (901), and a sliding column (904) is fitted and slidably connected to the inner wall of the fixed cylinder (903); a connecting pipe (905) is fixedly connected to the outer wall of the sliding column (904), and the inner wall of the connecting pipe (905) is fitted and slidably connected to the inner wall of the fixed cylinder (903). The other end of the connecting tube (905) is fixedly connected to a mounting tube (906), and the inner wall of the connecting tube (905) is connected to the inner wall of the mounting tube (906); one end face of the mounting tube (906) is fixedly connected to a material discharge ramp (907), and one side wall of the two material discharge ramps (907) that are close to each other is fixedly connected to the outer walls of both sides of the placement plate (3); the inner wall of the mounting tube (906) is rotatably connected to a rotating rod (908), and the outer wall of the other end of the rotating rod (908) is fixedly connected to a guide baffle (909), and the outer wall of the rotating rod (908) is fitted with a torsion spring (910).

4. A valve pressure test working detection platform according to claim 3, characterized in that: One end of the torsion spring (910) overlaps the inner wall of the installation tube (906), and the other end of the torsion spring (910) overlaps the outer wall of the rotating rod (908). The inner wall of the installation tube (906) is slidably connected with a trigger disk (911), and the outer wall of the rotating rod (908) is correspondingly provided with a spiral groove (912).

5. A valve pressure test working detection platform according to claim 4, characterized in that: A ball is fixedly connected to the corresponding spiral groove (912) inside the trigger disk (911), and the outer wall of the ball is fitted and slidably matched with the inner wall of the spiral groove (912).

6. A valve pressure test working detection platform according to claim 5, characterized in that: The outer wall of the trigger plate (911) is symmetrically fixedly connected to a limit block (913); a limit groove (914) is provided on the inner wall of the installation cylinder (906) corresponding to the limit block (913); the outer wall of the limit block (913) and the inner wall of the limit groove (914) fit and slide together; the outer walls of both sides of the platform body (1) are fixedly connected to a collection box (915) corresponding to the material discharge ramp (907); a partition plate (916) is fixedly connected to the inner center of the collection box (915) corresponding to the material discharge ramp (907); and a sponge pad (917) is symmetrically fixedly installed on the inner wall of the collection box (915).

7. A valve pressure test working detection platform according to claim 6, characterized in that: A circular groove (918) is provided on the top of the trigger block (901), and a first spring (919) is fixedly connected to the inner wall of the circular groove (918); a blocking column (920) is fixedly connected to the other end of the first spring (919), and the outer wall of the blocking column (920) slides in contact with the inner wall of the circular groove (918); a sliding groove (921) is provided on the inner wall of the bottom of the lower cover tube (7), and the bottom of the trigger block (901) slides in contact with the inner wall of the sliding groove (921); a second spring (922) is fixedly connected to a side wall of the trigger block (901) facing the paint tube (13), and the other end of the second spring (922) is fixedly connected to the inner wall of the sliding groove (921); a material unloading component (16) is provided on one side wall of the placement plate (3), and a material feeding component (17) is provided on the other side wall of the placement plate (3).

8. A valve pressure test working detection platform according to claim 7, characterized in that: The material removal component (16) comprises a support block (1601), and a side wall of the support block (1601) is fixedly connected to a side wall of the placement plate (3); a drive motor (1602) is fixedly mounted on one side of the support block (1601), and an output shaft at one end of the drive motor (1602) is fixedly connected to a threaded rod (1603); an outer wall of the threaded rod (1603) is threadedly connected to a connecting frame (1604) at equal distances, and a material removal push block (1605) is fixedly connected to the other end of the connecting frame (1604); and the threads on the outer wall of the threaded rod (1603) are arranged in opposite directions.

9. A valve pressure test working detection platform according to claim 7, characterized in that: The feeding component (17) comprises a loading rack (1701), and a side wall of the loading rack (1701) is fixedly connected to a side wall of the placement plate (3); an electric push rod 1 (1702) is fixedly installed on the bottom inner wall of the loading rack (1701), and an output rod at one end of the electric push rod 1 (1702) is fixedly connected to a lifting plate (1703); a conveyor belt (1704) is provided on a side wall of the lifting plate (1703) away from the placement plate (3), and a placement groove (1705) is correspondingly provided on the top of the lifting plate (1703); a side wall of the loading rack (1701) away from the placement plate (3) is fixedly connected to a support plate (1706), and a side wall of the support plate (1706) away from the placement plate (3) is fixedly installed with an electric push rod 2 (1707), and an output rod at one end of the electric push rod 2 (1707) is fixedly connected to a loading push block (1708).

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