A gas cylinder sealing detection device

Abstract

The utility model belongs to the technical field of sealing detection, concretely is a kind of gas cylinder sealing detection device, including processing platform, still include: rotating ring, rotating installation is above processing platform, and rotating ring top surface is fixed with a plurality of placing seat around;Gantry, two vertical to the side wall of horizontal plane respectively located the inside and outside of rotating ring, two clamping blocks are symmetrically arranged in gantry;Sealing plug, with the outer wall of aeration pipe solid connection, and air pump is fixed on the upper portion of gantry;In the utility model, placing seat can enter detection station in turn, realize the parallel operation of feeding, detection and discharging process, reduce equipment idle time, and simultaneously, gas cylinder is clamped and fixed, ensure that gas cylinder keeps stable during aeration detection process.

Description

Technical Field

[0001] This utility model belongs to the field of sealing test technology, and more specifically, it relates to a gas cylinder sealing test device. Background Technology

[0002] Gas cylinders, as refillable mobile pressure vessels, are widely used in industrial, medical, and energy fields. They are mainly used for storing and transporting compressed gases, liquefied gases, or dissolved gases. To ensure safe use, gas cylinders must undergo a sealing test before each filling.

[0003] Currently, existing gas cylinder sealing tests are typically single-station designs that rely heavily on manual operation. This means that after a single gas cylinder is fixed and tested, it must be manually disassembled and reinstalled before the next gas cylinder to be tested. This results in a significant amount of non-operational waiting time during the testing process, leading to low overall testing efficiency and making it difficult to meet the high-efficiency requirements of industrialized mass production.

[0004] To address the aforementioned issues, this application proposes a gas cylinder sealing performance testing device. Utility Model Content

[0005] The purpose of this invention is to provide a gas cylinder sealing test device, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a gas cylinder sealing performance testing device, including a processing table, and further comprising:

[0008] A rotating ring is rotatably mounted above the processing table, and multiple placement seats are fixedly provided circumferentially on the top surface of the rotating ring;

[0009] The gantry frame has two side walls perpendicular to the horizontal plane located on the inner and outer sides of the rotating ring, and two clamping blocks are symmetrically arranged inside the gantry frame.

[0010] A sealing plug is fixedly connected to the outer wall of the inflation tube, and an air pump is fixedly installed above the gantry frame.

[0011] Furthermore, the two parallel side walls of the gantry are slidably connected with smooth rods, and the two smooth rods are fixedly connected to the two clamping blocks respectively. Two lifting seats are symmetrically arranged on the outside of the gantry, and the lifting seats and the outer walls of the smooth rods are rotatably connected to the two ends of the connecting rod through fixed shafts. Two screws are symmetrically arranged on the outside of the gantry, and the two screws are threadedly connected to the two lifting seats respectively.

[0012] Furthermore, two horizontal plates are fixedly provided on the two side walls of the gantry frame, and the two ends of the screw are rotatably connected to the horizontal plates respectively. A guide rail that is slidably connected to the lifting seat is fixed between the two horizontal plates.

[0013] Furthermore, the two screws are respectively fixedly connected to the two bevel gears 1 via connecting shafts, and the two bevel gears 1 are respectively meshed with the two bevel gears 2, with a rotating shaft fixed between the two bevel gears 2.

[0014] Furthermore, side protective shells are fixedly provided on both sides of the gantry frame. The connecting rod, lifting seat, horizontal plate, guide rail, bevel gear one and bevel gear two are all set inside the side protective shells. A motor one is fixedly provided on the outer wall of one of the side protective shells, and the output end of motor one is fixedly connected to bevel gear two.

[0015] Furthermore, a bearing is provided in the annular groove on the top surface of the processing table. The outer ring of the bearing is fixedly connected to the processing table, and the inner ring of the bearing is fixedly connected to the connecting ring fixed at the bottom end of the rotating ring. A gear ring is fixedly provided in the rotating ring and meshes with the drive gear. A second motor for driving the drive gear to rotate is fixedly provided on the bottom surface of the processing table.

[0016] Furthermore, the top surface of the processing table is fixedly connected to the protective plate by a fixing block, and the protective plate is rotatably connected to the rotating ring, with the protective plate located above the gear ring.

[0017] Furthermore, an electric push rod is fixedly provided on the top surface of the gantry frame, and the output end of the electric push rod is fixedly connected to the sealing plug through a connecting plate.

[0018] Furthermore, the top of the sealing plug is connected to one interface of the tee connector, and the other two interfaces of the tee connector are respectively connected to the connecting hose and the pressure relief pipe. The air outlet of the air pump is connected to the connecting hose through the air outlet pipe.

[0019] Furthermore, a pressure gauge is installed on the vent pipe.

[0020] This utility model has the following beneficial effects:

[0021] This utility model features a rotating ring mounted above the processing table with multiple placement seats arranged circumferentially on the top surface. This design allows the placement seats to be rotated sequentially by the inspection station. When a gas cylinder is being inspected, the gas cylinder in the placement seat that has left the inspection station can be replaced. This enables parallel operation of the loading, inspection and unloading processes, effectively reducing equipment idle time and significantly improving inspection efficiency.

[0022] This invention uses two clamping blocks to symmetrically clamp and fix the gas cylinder from both sides, applying a uniform clamping force to the gas cylinder, ensuring that the gas cylinder remains stable during the filling and testing process, and effectively preventing shaking or positional displacement caused by uneven force.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the processing table and rotating ring of this utility model;

[0027] Figure 3 This is a partial structural schematic diagram of the present invention;

[0028] Figure 4 This is a cross-sectional view of the gantry frame and side shell of this utility model;

[0029] The attached diagram lists the components represented by each number as follows:

[0030] In the diagram: 1. Processing table; 101. Annular groove; 102. Fixing block; 2. Rotating ring; 201. Connecting ring; 3. Placement seat; 4. Gantry frame; 5. Clamping block; 501. Smooth rod; 6. Sealing plug; 7. Inflation pipe; 8. T-joint; 9. Air pump; 901. Air outlet pipe; 902. Connecting hose; 10. Pressure gauge; 11. Pressure relief pipe; 12. Electric push rod; 1201. Connecting plate; 13. Connecting rod; 14. Lifting seat; 15. Screw; 1501. Horizontal plate; 16. Guide rail; 17. Bevel gear one; 18. Bevel gear two; 1801. Rotating shaft; 19. Motor one; 20. Side shell; 21. Bearing; 22. Protective plate; 23. Gear ring; 24. Drive gear; 25. Motor two. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Please see Figure 1 - Figure 4 As shown, this utility model is a gas cylinder sealing test device, including a processing table 1, and further including: a rotating ring 2, which is rotatably installed above the processing table 1, and multiple placement seats 3 are fixedly fixed on the top surface of the rotating ring 2; a gantry frame 4, with two side walls perpendicular to the horizontal plane located on the inner and outer sides of the rotating ring 2 respectively, and two clamping blocks 5 symmetrically arranged inside the gantry frame 4; a sealing plug 6, which is fixedly connected to the outer wall of the inflation pipe 7, and an air pump 9 is fixedly installed above the gantry frame 4;

[0034] This embodiment provides a gas cylinder sealing test device. The centers of the two clamping blocks 5, the central axis of the sealing plug 6, and the central axis of the placement seat 3 located at the test station (directly below the sealing plug 6) are on the same vertical line. The inflation tube 7 passes through the sealing plug 6 and is fixedly connected to the sealing plug 6. The sealing plug 6 is preferably made of a material with good elastic deformation ability and wear resistance, such as rubber or polyurethane, and its shape is designed as a conical structure. The placement seat 3 is used to place the gas cylinder. The sides of the clamping blocks 5 that are close to each other are arc-shaped. The arc-shaped contact increases the friction force and improves the clamping stability. The gas cylinder is clamped and fixed by the clamping blocks 5, and the gas cylinder mouth is sealed by the sealing plug 6. The air source is provided by the air pump 9. The rotation of the rotating ring 2 can drive the placement seat 3 to rotate periodically and pass under the clamping blocks 5. When one gas cylinder rotates to the test station with the placement seat 3, other gas cylinders that have been tested can rotate to the unloading station with the rotating ring 2. The user can simultaneously complete the loading operation of new gas cylinders, realize the continuous operation of "testing-loading-unloading", and greatly improve the testing efficiency.

[0035] The gantry frame 4 has two parallel side walls that are slidably connected to smooth rods 501, and the two smooth rods 501 are fixedly connected to two clamping blocks 5. The gantry frame 4 has two symmetrically arranged lifting seats 14, and the outer walls of the lifting seats 14 and the smooth rods 501 are rotatably connected to the two ends of the connecting rod 13 through fixed shafts. The gantry frame 4 has two symmetrically arranged screws 15, and the two screws 15 are threadedly connected to the two lifting seats 14. The screws 15 are set perpendicular to the horizontal plane. The rotation of the screws 15 drives the lifting seats 14 to rise and fall, and further drives the smooth rods 501 to move through the connecting rod 13, thereby driving the two clamping blocks 5 to move in opposite directions, so as to clamp or release the gas cylinder.

[0036] Two horizontal plates 1501 are fixedly installed on the two side walls of the gantry frame 4. The two ends of the screw 15 are rotatably connected to the horizontal plates 1501. A guide rail 16 is fixed between the two horizontal plates 1501 and slidably connected to the lifting seat 14. The guide rail 16 is set parallel to the lifting seat 14 to provide guidance for the lifting of the lifting seat 14 and prevent the lifting seat 14 from deviating.

[0037] Two screws 15 are fixedly connected to two bevel gears 17 via connecting shafts, and the two bevel gears 17 are meshed with two bevel gears 18. A rotating shaft 1801 is fixed between the two bevel gears 18. Through the action of the bevel gear set (bevel gears 17 and bevel gears 18), the rotational motion of the rotating shaft 1801 is converted into the synchronous rotation of the screws 15, ensuring the synchronous reverse movement of the two clamping blocks 5 and avoiding the tilting of the gas cylinder due to uneven force on one side.

[0038] Among them, the two sides of the gantry frame 4 are respectively fixed with side shells 20. The connecting rod 13, lifting seat 14, horizontal plate 1501, guide rail 16, bevel gear 17 and bevel gear 28 are all set inside the side shells 20. A motor 19 is fixed on the outer wall of one side shell 20, and the output end of the motor 19 is fixedly connected to a bevel gear 28. The motor 19 drives the bevel gear set to rotate, thereby driving the screw 15 to rotate.

[0039] The processing table 1 has a bearing 21 installed in the annular groove 101 on the top surface. The outer ring of the bearing 21 is fixed to the processing table 1, and the inner ring of the bearing 21 is fixed to the connecting ring 201 fixed at the bottom of the rotating ring 2. The rotating ring 2 has a gear ring 23 fixed inside, and the gear ring 23 meshes with the drive gear 24. The bottom surface of the processing table 1 has a motor 25 for driving the drive gear 24 to rotate. The output end of the motor 25 is fixed to the drive gear 24 and is used to drive the drive gear 24 to rotate. The drive gear 24 is further driven to rotate through the gear ring 23, thereby driving the placement seat 3 to rotate, realizing the automatic feeding of gas cylinders.

[0040] The top surface of the processing table 1 is fixedly connected to the protective plate 22 by the fixing block 102, and the protective plate 22 is rotatably connected to the rotating ring 2. The protective plate 22 is located above the gear ring 23. The protective plate 22 is used to shield the gear ring 23 and the drive gear 24 to prevent external debris from affecting the transmission effect of the gear ring 23 and the drive gear 24.

[0041] Among them, an electric push rod 12 is fixedly installed on the top surface of the gantry frame 4, and the output end of the electric push rod 12 is fixedly connected to the sealing plug 6 through the connecting plate 1201. The movement of the output shaft of the electric push rod 12 drives the sealing plug 6 to move vertically, thereby completing the insertion or removal operation of the gas cylinder mouth. The number of electric push rods 12 can be selected according to the actual assembly and power requirements. Regardless of whether there is one or more electric push rods 12 (multiple electric push rods 12 can be established in a synchronous motion group by the controller through electronic control to maintain coordinated work), as long as they can drive the sealing plug 6 to complete the lifting and lowering movement, they should fall within the protection scope of this utility model.

[0042] The sealing plug 6 is connected to one interface of the three-way connector 8, and the other two interfaces of the three-way connector 8 are connected to the connecting hose 902 and the pressure relief pipe 11, respectively. The air outlet of the air pump 9 is connected to the connecting hose 902 through the air outlet pipe 901. A pressure gauge 10 is installed on the air outlet pipe 901. Valves are installed on both the air outlet pipe 901 and the pressure relief pipe 11. The air pump 9, the air outlet pipe 901, the connecting hose 902, the three-way connector 8 and the inflation pipe 7 form an inflation passage. The pressure gauge 10 is used to monitor the inflation pressure in real time and determine the sealing performance of the gas cylinder.

[0043] Preferably, motor 25 is a servo motor and is driven by a PLC control system, so that it rotates precisely intermittently according to a predetermined program, ensuring that the placement seat 3 can stop accurately at the detection station in sequence.

[0044] It is understood that in this utility model, the placement seat 3 can enter the testing station in turn to realize the parallel operation of the feeding, testing and unloading processes, reduce the idle time of the equipment, and at the same time, clamp and fix the gas cylinder to ensure that the gas cylinder remains stable during the filling and testing process.

[0045] A specific application of the operation flow in this embodiment is as follows:

[0046] Preparation stage: The rotating ring 2 is stationary, and a placement seat 3 is located directly below the sealing plug 6 (testing station). Place the gas cylinder to be tested in each placement seat 3.

[0047] Clamping stage: The starting motor 19 drives the screw 15 to rotate through the bevel gear set (bevel gear 17 and bevel gear 2 18), which in turn drives the smooth rod 501 to move horizontally through the lifting seat 14 and the connecting rod 13. The two clamping blocks 5 approach the gas cylinder at the same time, press against the gas cylinder, and fix the gas cylinder.

[0048] Sealing test: Start the electric push rod 12 to move the sealing plug 6 down and insert it into the gas cylinder mouth. Then open the valve of the connecting hose 902, close the valve of the pressure relief pipe 11, start the air pump 9, and fill the gas cylinder with air through the air outlet pipe 901, connecting hose 902, tee connector 8 and air filling pipe 7. The pressure gauge 10 displays the pressure value in real time until it reaches the set value, such as 1.5 times the working pressure. Turn off the air pump 9 and enter the pressure holding stage, for example, for 30 seconds. Observe the change in the reading of the pressure gauge 10. If the drop is ≤0.5% of the rated pressure, it is qualified.

[0049] Depressurization phase: After the pressure holding is completed, close the air pump 9 and the valve of the air outlet pipe 901, open the valve of the pressure relief pipe 11 to restore the air pressure in the gas cylinder to normal, start the electric push rod 12 to move the sealing plug 6 away from the gas cylinder opening;

[0050] Rotary material change: Start motor 19 to separate clamping block 5 from gas cylinder, release the fixation of gas cylinder, and then start motor 25. Through the transmission of drive gear 24 and gear ring 23, drive rotating ring 2 to rotate, so that the gas cylinder that has been tested leaves the testing station, and at the same time, the new gas cylinder to be tested rotates to the testing station; the user takes out the tested gas cylinder and puts in the new gas cylinder.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A gas cylinder sealing performance testing device, comprising a processing table (1), characterized in that, Also includes: A rotating ring (2) is rotatably mounted above the processing table (1), and multiple placement seats (3) are fixedly provided on the top surface of the rotating ring (2) in a circumferential direction. The gantry frame (4) has two side walls perpendicular to the horizontal plane located on the inner and outer sides of the rotating ring (2), and two clamping blocks (5) are symmetrically arranged inside the gantry frame (4). A sealing plug (6) is fixedly connected to the outer wall of the air inflator (7), and an air pump (9) is fixedly installed above the gantry (4).

2. The gas cylinder sealing test device according to claim 1, characterized in that: The gantry frame (4) has two parallel side walls that are slidably connected to smooth rods (501), and the two smooth rods (501) are fixedly connected to two clamping blocks (5). The gantry frame (4) is symmetrically provided with two lifting seats (14), and the outer walls of the lifting seats (14) and the smooth rods (501) are rotatably connected to the two ends of the connecting rod (13) through fixed shafts. The gantry frame (4) is symmetrically provided with two screws (15), and the two screws (15) are threadedly connected to the two lifting seats (14).

3. The gas cylinder sealing test device according to claim 2, characterized in that: Two horizontal plates (1501) are fixedly installed on the two side walls of the gantry frame (4). The two ends of the screw (15) are rotatably connected to the horizontal plates (1501). A guide rail (16) that is slidably connected to the lifting seat (14) is fixed between the two horizontal plates (1501).

4. The gas cylinder sealing test device according to claim 3, characterized in that: The two screws (15) are fixedly connected to the two bevel gears (17) respectively via connecting shafts, and the two bevel gears (17) are meshed with the two bevel gears (18) respectively. A rotating shaft (1801) is fixed between the two bevel gears (18).

5. The gas cylinder sealing test device according to claim 4, characterized in that: Side shells (20) are fixed on both sides of the gantry frame (4). The connecting rod (13), lifting seat (14), horizontal plate (1501), guide rail (16), bevel gear one (17) and bevel gear two (18) are all set inside the side shells (20). A motor one (19) is fixed on the outer wall of one of the side shells (20), and the output end of the motor one (19) is fixedly connected to a bevel gear two (18).

6. The gas cylinder sealing test device according to claim 1, characterized in that: A bearing (21) is provided in the annular groove (101) on the top surface of the processing table (1). The outer ring of the bearing (21) is fixedly connected to the processing table (1), and the inner ring of the bearing (21) is fixedly connected to the connecting ring (201) fixed at the bottom of the rotating ring (2). A gear ring (23) is fixedly provided in the rotating ring (2), and the gear ring (23) is meshed with the drive gear (24). A motor (25) for driving the drive gear (24) to rotate is fixedly provided on the bottom surface of the processing table (1).

7. The gas cylinder sealing test device according to claim 6, characterized in that: The top surface of the processing table (1) is fixedly connected to the protective plate (22) by a fixing block (102), and the protective plate (22) is rotatably connected to the rotating ring (2). The protective plate (22) is located above the gear ring (23).

8. The gas cylinder sealing test device according to claim 1, characterized in that: The top surface of the gantry (4) is fixed with an electric push rod (12), and the output end of the electric push rod (12) is fixed to the sealing plug (6) through the connecting plate (1201).

9. The gas cylinder sealing test device according to claim 8, characterized in that: The top of the sealing plug (6) is connected to one interface of the three-way connector (8), and the other two interfaces of the three-way connector (8) are connected to the connecting hose (902) and the pressure relief pipe (11) respectively. The air outlet of the air pump (9) is connected to the connecting hose (902) through the air outlet pipe (901).

10. A gas cylinder sealing test device according to claim 9, characterized in that: A pressure gauge (10) is installed on the vent pipe (901).

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