Gas injection rail airtightness detection equipment

Abstract

The utility model discloses a kind of gas spray rail gas-tight detection equipment, it is related to gas equipment detection technical field, including rack, the rack is divided into lower installation cavity and upper test cavity by partition, the inside bottom end of upper test cavity is fixedly connected with mounting bracket, the inside bottom end of upper test cavity is fixedly installed with load-bearing bottom plate and flow test instrument by bolt, the upper end of load-bearing bottom plate is fixedly connected with the analog seat for placing gas spray rail, the upper end of analog seat is fixedly connected with multiple positioning blocks, the utility model is from automatic plugging, gas circuit switching, to data acquisition, result determination, whole process is automatically controlled by industrial computer, only need artificial to complete the placement of spray rail, fixed and take out, greatly reduce manual operation step, after detecting parameter pre-setting, without manual intervention, avoid parameter setting error caused by experience difference of operator, improve the stability and consistency of detection process, reduce the influence of artificial factor on detection result.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment testing technology, specifically to a gas jet rail air tightness testing device. Background Technology

[0002] Gas jet rail air tightness testing equipment is a special equipment used to test whether the air tightness of the jet rail assembly meets the standard and whether the static working flow rate meets the standard. By introducing the test medium into the inner cavity of the jet rail, the pressure change and flow data are monitored to determine whether the product is qualified.

[0003] Traditional equipment often has its gas circuit system, electrical components, and detection modules scattered, occupying a large space and making it inconvenient to move and maintain. Moreover, most of these devices only have airtightness testing functions, and the flow rate detection of the gas injection rail needs to be transferred to another device, reducing testing efficiency. In addition, the gas injection rail interface is often manually sealed or simply sealed with a cylinder, which is prone to uneven deformation of the seal due to excessive pressure, or leakage of the test medium due to poor sealing, affecting the accuracy of the airtightness test results. Therefore, a gas injection rail airtightness testing device is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the aforementioned technical problems, a gas injection rail airtightness testing device is provided. This technical solution solves the problems mentioned in the background art, where the gas circuit system, electrical components, and testing modules of traditional equipment are mostly scattered, occupying a large space, making them inconvenient to move and maintain. Moreover, most of these devices only have airtightness testing functions, and the injection rail flow testing needs to be transferred to another device, reducing testing efficiency. In addition, gas injection rail interfaces are mostly sealed manually or with simple cylinders, which can easily lead to uneven deformation of the seals due to excessive pressure, or leakage of the testing medium due to poor sealing, affecting the accuracy of the airtightness test results.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A gas jet rail airtightness testing device includes a frame, which is divided into a lower mounting chamber and an upper testing chamber by a partition. A mounting bracket is fixedly connected to the bottom inner side of the upper testing chamber. A bearing base plate and a flow meter are fixedly mounted to the bottom inner side of the upper testing chamber by bolts. A profile holder for placing the gas jet rail is fixedly connected to the upper end of the bearing base plate. Multiple positioning blocks are fixedly connected to the upper end of the profile holder. An elbow clamp mechanism for fixing the gas jet rail is fixedly connected to the upper end of the bearing base plate at the front side of the profile holder. Ultra-high pressure connectors and sliding sleeve quick connectors are respectively provided on the left and right sides of the profile holder. Four cylinders are fixedly mounted on the upper end of the bearing base plate at the rear side of the profile holder. A plug is fixedly connected to the output end of the cylinder. A limit post is fixedly connected to the outer side of the plug. A sealing ring is fixedly connected to the inside of the plug. Multiple air passage interfaces are provided at the front end of the mounting bracket. An elbow connector is threaded to the front end of each air passage interface.

[0007] Preferably, an industrial control computer and an air tank are fixedly installed inside the lower mounting cavity, and the output end of the air tank is internally connected to multiple air circuit interfaces.

[0008] Preferably, the upper end of the mounting frame is provided with an airtightness tester, a DC power supply, a display screen and a programmable power supply from left to right. Fixed barcode scanners are fixedly connected to the inner walls of the left and right sides of the upper test chamber. The front end of the upper test chamber is provided with a start switch box, a scanner and a three-position button box. A three-color light is fixedly connected to the right end of the frame.

[0009] Preferably, the front end of the upper test cavity is movably connected to a slidable drawer, and a mouse and keyboard are provided on the inside of the drawer.

[0010] Preferably, the upper end of the frame is provided with a plurality of evenly distributed fixing holes, and the upper end of the supporting base plate is fixedly connected with two symmetrically distributed handles.

[0011] Preferably, two symmetrically distributed safety light curtains are fixedly connected to the front end of the frame, and casters are fixedly connected to the four corners of the bottom end of the frame.

[0012] The advantages of this utility model compared with the prior art are:

[0013] This solution proposes a gas jet rail airtightness testing device. From automatic sealing and gas path switching to data acquisition and result judgment, the entire process is automatically controlled by an industrial control computer. Only manual operation is required to place, fix and remove the jet rail, which greatly reduces the number of manual operation steps. After the test parameters are preset, no manual intervention is required, avoiding parameter setting errors caused by differences in operator experience, improving the stability and consistency of the test process, and reducing the impact of human factors on the test results.

[0014] This solution adopts a vertical partitioned layout, integrating the air circuit, industrial control, and dual detection modules into one unit. It can complete air tightness and flow rate detection without additional equipment, and the workpiece does not need to be transferred between multiple devices, avoiding damage during handling. At the same time, the detection data is automatically correlated, eliminating the need for manual recording, which greatly improves the continuity of batch testing and space utilization. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the frame structure in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the load-bearing base plate in this utility model;

[0018] Figure 4 This is a schematic diagram of the plug structure in this utility model.

[0019] The numbers on the map are:

[0020] 1. Frame; 101. Lower mounting cavity; 102. Upper test cavity; 103. Mounting bracket; 2. Bearing base plate; 3. Profile holder; 4. Positioning block; 5. Elbow clamp mechanism; 6. Sliding sleeve quick connector; 7. Ultra-high pressure connector; 8. Cylinder; 9. Plug; 901. Limiting post; 902. Sealing ring; 10. Handle; 11. Fixing hole; 12. Air circuit interface; 13. Elbow connector; 14. DC power supply; 15. Display screen; 16. Three-color light; 17. Safety light curtain; 18. Start switch box; 19. Drawer; 20. Scanner; 21. Three-position button box; 22. Air tightness tester; 23. Fixed barcode scanner; 24. Industrial computer; 25. Air tank; 26. Casters; 27. Programmable power supply; 28. Flow meter. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figures 1-4 As shown, a gas jet rail air tightness testing device includes a frame 1. The frame 1 is divided into a lower mounting cavity 101 and an upper testing cavity 102 by a partition. A mounting bracket 103 is fixedly connected to the inner bottom end of the upper testing cavity 102. A bearing base plate 2 and a flow meter 28 are fixedly installed on the inner bottom end of the upper testing cavity 102 by bolts.

[0023] Specifically, the frame 1 adopts a vertical skeleton structure, constructed entirely of aluminum profiles. This ensures structural rigidity to accommodate the equipment load during mass production while reducing overall weight. A partition divides the frame 1 into an independent lower mounting cavity 101 and an upper testing cavity 102. The lower mounting cavity 101 can accommodate auxiliary components such as gas pipelines and electrical wiring. The upper testing cavity 102 serves as the core testing area, achieving functional zoning and isolation to prevent auxiliary components from interfering with testing accuracy. It also improves the overall neatness of the equipment. The mounting bracket 103 provides a stable mounting foundation for testing-related control and testing equipment, ensuring a neat equipment layout. The load-bearing base plate 2 is fixed with bolts, ensuring a secure installation and facilitating later disassembly and adjustment. This adapts to the tooling replacement requirements during testing of different specifications of spray rails. The flow meter 28 is used to test the static working flow of the gas spray rail, working in conjunction with the airtightness testing function to achieve comprehensive performance testing of the spray rail.

[0024] Furthermore, a template seat 3 for placing the gas jet rail is fixedly connected to the upper end of the supporting base plate 2, and multiple positioning blocks 4 are fixedly connected to the upper end of the template seat 3.

[0025] Specifically, the profile holder 3 is customized according to the shape of the gas injection rail, which can fit closely to the surface of the injection rail to ensure that the injection rail will not shift when placed, providing a precise reference for subsequent sealing and connection. The shape formed by multiple positioning blocks 4 and the profile holder 3 is adapted to the shape of the gas injection rail, which facilitates the rapid placement of the gas injection rail.

[0026] Furthermore, the upper end of the bearing base plate 2 is fixedly connected to the front side of the profile seat 3 with an elbow clamp mechanism 5 for fixing the gas injection rail.

[0027] Specifically, the elbow clamp mechanism 5 adopts a manual quick clamping design. After the gas injection rail is placed on the template seat 3, the elbow clamp mechanism 5 can apply clamping force to the gas injection rail from above to clamp and fix it.

[0028] Furthermore, four cylinders 8 are fixedly installed on the upper end of the bearing base plate 2 at the rear side of the imitation seat 3. A plug 9 is fixedly connected to the output end of the cylinder 8. A limit post 901 is fixedly connected to the outer side of the plug 9, and a sealing ring 902 is fixedly connected to the inside of the plug 9.

[0029] Specifically, cylinder 8 provides a stable driving force for plug 9, which can automatically drive plug 9 to seal the excess interface of the spray rail during testing, eliminating the need for manual sealing and improving the automation level of testing. Limit post 901 can distribute excess downward pressure when cylinder 8 drives plug 9 to tighten, avoiding uneven deformation of sealant due to excessive compression, and ensuring consistent sealing effect for each sealing. The sealing ring 902 uses wear-resistant and high-pressure resistant sealing material, which can tightly fit the spray rail interface to prevent leakage of the test medium and ensure the accuracy of airtightness testing.

[0030] Furthermore, the front end of the mounting bracket 103 is provided with multiple air passage interfaces 12, and the front end of the air passage interface 12 is threadedly connected with an elbow connector 13.

[0031] Specifically, the gas interface 12 serves as a gas transfer node between the gas storage tank 25 and the detection component, enabling centralized management of multiple gas lines and facilitating subsequent gas line maintenance and expansion. The elbow connector 13 allows for flexible adjustment of the gas line routing, preventing pipeline crossings and entanglements.

[0032] Furthermore, an industrial control computer 24 and an air tank 25 are fixedly installed inside the lower mounting cavity 101, and the output end of the air tank 25 is connected to the interior of multiple air passage interfaces 12.

[0033] Specifically, the industrial control computer 24 serves as the control core of the equipment, enabling the operation of the testing program, the acquisition and storage of testing data, and the automatic determination of testing results. The air tightness tester 22 and the flow tester 28 are both electrically connected to the industrial control computer 24. The air storage tank 25 is used to store the compressed air required for testing, and can stably output the testing medium, avoiding the impact of air source pressure fluctuations on testing accuracy. Its connection design with the air circuit interface 12 ensures the continuity and stability of the air circuit supply.

[0034] Furthermore, from left to right, the upper end of the mounting frame 103 is provided with an airtightness tester 22, a DC power supply 14, a display screen 15, and a programmable power supply 27. Fixed barcode scanners 23 are fixedly connected to the inner walls of the left and right sides of the upper test chamber 102. The front end of the upper test chamber 102 is provided with a start switch box 18, a barcode scanner 20, and a three-position button box 21. A three-color light 16 is fixedly connected to the right end of the frame 1.

[0035] Specifically, the air tightness tester 22 can accurately detect the leakage of the gas jet rail under a set pressure, automatically compare the results with the judgment criteria, and provide the results. The DC power supply 14 and the programmable power supply 27 are used to provide the working voltage required for the gas jet rail to be tested, adapting to the testing needs of the gas jet rail under different working conditions. The display screen 15 is used to display the testing program, real-time data and judgment results, which is convenient for operators to view intuitively. The fixed barcode scanner 23 works with the scanning gun 20 to scan the QR code information of the gas jet rail, realizing a one-to-one correspondence between the test data and the gas jet rail, which is convenient for data traceability in the future. The start switch box 18 and the three-position button box 21 are used by the operator to start the test, perform emergency stop and other operations, which improves the safety and convenience of operation. The three-color light 16 uses different colored lights, such as green light for qualified and red light for unqualified, to intuitively indicate the test results.

[0036] Furthermore, ultra-high voltage connector 7 and sliding quick connector 6 are respectively provided on the left and right sides of the profile holder 3.

[0037] Specifically, the ultra-high pressure connector 7 has a manually operated rotating locking ring with anti-slip texture in the middle. The operator can mechanically lock the gas injection rail and the ultra-high pressure connector 7 by rotating the locking ring. The sliding quick connector 6 has an axially sliding sliding sleeve in the middle. The operator can quickly connect the sliding quick connector 6 and the gas injection rail by pushing the sliding sleeve. Two gas paths are led out through two elbow joints 13. One elbow joint 13 is connected to the air inlet of the air tightness tester 22 through a pipe. The air outlet of the air tightness tester 22 is then split into two high-pressure gas pipes, which are connected to the air inlet of the ultra-high pressure connector 7 and the air inlet of the sliding quick connector 6, respectively. The other elbow joint 13 is connected to the air inlet of the flow tester 28 through a pipe. The air outlet of the flow tester 28 is connected to the other set of air inlets of the sliding quick connector 6 through a pipe. The two sets of air inlets of the sliding quick connector 6 are switched by a solenoid valve.

[0038] Furthermore, the front end of the upper test cavity 102 is movably connected to a slidable drawer 19, and a mouse and keyboard are provided on the inside of the drawer 19.

[0039] Specifically, the sliding drawer 19 provides storage space for the mouse and keyboard, preventing the operating parts from being exposed and accumulating dust or being damaged. The drawer 19 can be flexibly pulled out and closed, allowing operators to conveniently use the mouse and keyboard when they need to adjust programs or input parameters, without taking up extra operating space and improving the convenience of human-computer interaction.

[0040] Furthermore, the upper end of the frame 1 is provided with a plurality of evenly distributed fixing holes 11, and the upper end of the bearing base plate 2 is fixedly connected with two symmetrically distributed handles 10.

[0041] Specifically, by installing bolts in the fixing holes 11 of the bearing base plate 2, the bearing base plate 2 can be fixed in the upper test cavity 102. The handle 10 makes it easy for operators to move or adjust the bearing base plate 2, reducing the difficulty of disassembly and maintenance and improving the convenience of equipment maintenance.

[0042] Furthermore, two symmetrically distributed safety light curtains 17 are fixedly connected to the front end of the frame 1, and casters 26 are fixedly connected to the four corners of the bottom end of the frame 1.

[0043] Specifically, the safety light curtain 17 can form an infrared protection zone. When the operator's hands or other body parts enter the detection area of ​​the upper test chamber 102, the equipment will automatically stop running to avoid personal injury caused by mechanical movements. The casters 26 facilitate the movement of the equipment in the production workshop, adapt to the layout adjustment needs of different workstations in the workshop, and improve the flexibility of the equipment. At the same time, the casters 26 have a locking function, which can lock the equipment after it is in place to prevent displacement and ensure the stability during testing.

[0044] Working principle: During use, the gas jet rail to be tested is placed on the template base 3, and the positioning block 4 is used to quickly align the position of the jet rail. Then, the elbow clamping mechanism 5 is operated to apply clamping force from above the jet rail to complete the mechanical fixation of the workpiece. At the same time, the jet rail connector is connected to the corresponding interface of the equipment to ensure stable electrical signal transmission. Afterwards, the QR code on the jet rail is scanned by the fixed barcode scanner 23 or the handheld scanner 20. The system automatically records the unique identifier of the workpiece into the database, realizing the one-to-one binding of the test data and the workpiece, providing a basis for subsequent traceability. Then the operator... The operator presses the button on the start switch box 18, and the four cylinders 8 start synchronously, driving the plug 9 to move towards the spray rail interface, completing the sealing of the excess inlet and outlet of the spray rail. The limit post 901 on the outside of the plug 9 distributes excess downward pressure to prevent uneven deformation of the sealant. The internal sealing ring 902 tightly fits the interface. The compressed air stored in the air tank 25 is delivered to each detection component through the air circuit interface 12 and the elbow joint 13. Then, the industrial control computer 24 controls the DC power supply 14 and the programmable power supply 27 to start, providing the working voltage required for the gas spray rail detection. Then, through electromagnetic... The valve controls the connection of a single compressed air supply line via elbow connector 13 to the inlet of the airtightness tester 22. The outlet of the airtightness tester 22 is split into two lines, connecting to the inlets of the ultra-high pressure connector 7 and the sliding quick connector 6 respectively, to inflate the inner cavity of the spray rail. A pressure balancing phase is then initiated to ensure stable air pressure. The airtightness tester 22 uses differential pressure to test the airtightness of the spray rail, monitoring pressure changes in real time and calculating leakage. The test data is transmitted to the industrial control computer 24, which compares the results with the established standards to determine whether the airtightness meets the requirements. After the test is completed, the air intake channel of the sliding quick connector 6 is switched by the solenoid valve. Another compressed air is connected to the air intake end of the flow meter 28 through the elbow connector 13. The air outlet end of the flow meter 28 is connected to another set of air inlets of the sliding quick connector 6. Under the set working conditions, the nozzle of the spray rail is fully open. The flow meter 28 collects the flow data of the spray rail in real time and transmits the data to the industrial control computer 24. The industrial control computer 24 analyzes and processes the collected flow data and judges whether the static working flow of the spray rail meets the requirements according to relevant standards.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas jet rail airtightness testing device, characterized in that, The system includes a frame (1), which is divided into a lower mounting cavity (101) and an upper testing cavity (102) by a partition. A mounting bracket (103) is fixedly connected to the bottom inner side of the upper testing cavity (102). A bearing base plate (2) and a flow meter (28) are fixedly installed on the bottom inner side of the upper testing cavity (102) by bolts. A template seat (3) for placing the gas injection rail is fixedly connected to the upper end of the bearing base plate (2). Multiple positioning blocks (4) are fixedly connected to the upper end of the template seat (3). A device for positioning the gas injection rail is fixedly connected to the upper end of the bearing base plate (2) in front of the template seat (3). The elbow clamp mechanism (5) is fixed on the rail. The left and right sides of the profile seat (3) are respectively provided with an ultra-high pressure connector (7) and a sliding quick connector (6). The upper end of the bearing base plate (2) is located on the rear side of the profile seat (3) and four cylinders (8) are fixedly installed. The output end of the cylinder (8) is fixedly connected with a plug (9). The outer side of the plug (9) is fixedly connected with a limit post (901). The inside of the plug (9) is fixedly connected with a sealing ring (902). The front end of the mounting bracket (103) is provided with multiple air passage interfaces (12). The front end of the air passage interface (12) is threadedly connected with an elbow connector (13).

2. The gas injection rail airtightness testing equipment according to claim 1, characterized in that: An industrial control computer (24) and an air tank (25) are fixedly installed inside the lower mounting cavity (101). The output end of the air tank (25) is connected to the interior of multiple air circuit interfaces (12).

3. The gas injection rail airtightness testing equipment according to claim 1, characterized in that: The upper end of the mounting frame (103) is provided with an airtightness tester (22), a DC power supply (14), a display screen (15) and a programmable power supply (27) from left to right. Fixed barcode scanners (23) are fixedly connected to the inner walls of the left and right sides of the upper test chamber (102). The front end of the upper test chamber (102) is provided with a start switch box (18), a scanner (20) and a three-position button box (21). A three-color light (16) is fixedly connected to the right end of the frame (1).

4. The gas injection rail airtightness testing equipment according to claim 1, characterized in that: The front end of the upper test cavity (102) is movably connected to a slidable drawer (19), and a mouse and keyboard are provided on the inside of the drawer (19).

5. The gas injection rail airtightness testing device according to claim 1, characterized in that: The upper end of the frame (1) is provided with a plurality of evenly distributed fixing holes (11), and the upper end of the bearing base plate (2) is fixedly connected with two symmetrically distributed handles (10).

6. The gas injection rail airtightness testing equipment according to claim 1, characterized in that: The front end of the frame (1) is fixedly connected to two symmetrically distributed safety light curtains (17), and the bottom corners of the frame (1) are fixedly connected to casters (26).

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