Single-seal structure cylinder water detection device and method

Abstract

The present application relates to the technical field of cylinder sealing test, and proposes a kind of single sealing structure's cylinder water-free detection device and water-free detection method, wherein the device includes top plate, support frame, sealing element and jacking mechanism;Top plate is arranged above support frame;Jacking mechanism is connected with support frame, for jacking support frame to the direction of top plate;Sealing element is arranged at the lower end surface of top plate, and sealing element is arranged between top plate and the cylinder to be detected;Top plate is provided with several gas inlets;Gas inlet penetrates the top surface and bottom surface of top plate;One end of gas inlet is connected with external gas supply equipment;When detecting, the cylinder is pressed on the sealing element, and the sealing element deforms to seal between the cylinder and the top plate, after inputting gas from the gas inlet, the detection instrument is used to detect the air leakage point;The cylinder of water-free detection method does not contact water, does not waste water resources, avoids the problem such as residual water stain in cylinder, and effectively improves work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cylinder sealing test, in particular to a single-sealing-structure cylinder water-free detection device and a water-free detection method. BACKGROUND

[0002] A spa cylinder is a cylinder with a water pipe device, which can be used in a home bathroom or outdoors. The cylinder includes a spa massage bathtub, a mobile swimming pool, and other derivative bathtub products. The massage bathtub mainly consists of two parts: a cylinder and a massage system. The cylinder part is nothing more than a bathtub of various shapes, and the material is mostly steel or acrylic. The massage system consists of visible nozzles inside the cylinder and hidden pipes, motors, control boxes, etc. behind the bathtub. Because there are many pipes inside the bathtub, to avoid problems such as pipe leakage during use, it is necessary to detect the leakage of the cylinder during production to ensure the qualified rate of cylinder production. However, the current detection device for the cylinder basically adds water to the bathtub, and uses the full water in the bathtub to detect leakage. It needs to wait for the detection water to fill the inside of the bathtub, which wastes a lot of water resources. After the detection is completed, the detection water in the cylinder also needs to be discharged, which is low in detection efficiency, and there is also the problem of residual water stains in the cylinder. SUMMARY

[0003] In view of the above defects, the purpose of the present application is to provide a single-sealing-structure cylinder water-free detection device and a water-free detection method, which solves the problems of low water detection efficiency and residual water stains in the prior art.

[0004] To achieve this purpose, the present application adopts the following technical scheme:

[0005] A single-sealing-structure cylinder water-free detection device, comprising a top plate, a support frame, a sealing element, and a jacking mechanism;

[0006] The top plate is arranged above the support frame;

[0007] The jacking mechanism is connected with the support frame and is used for jacking the support frame in the direction of the top plate;

[0008] The sealing element is arranged at the lower end surface of the top plate, and the sealing element is arranged between the top plate and the cylinder to be detected;

[0009] The top plate is provided with a plurality of air inlets; the air inlets penetrate the top surface and the bottom surface of the top plate; one end of the air inlet is connected with an external gas supply device.

[0010] Preferably, the sealing element is detachably connected with the top plate.

[0011] Preferably, the sealing element is made of a plastic deformation sealing material.

[0012] Preferably, the sealing member is a sealing air bag, which is arranged in a ring shape, and the air inlet is arranged on the inner side of the sealing air bag.

[0013] Preferably, the cross-sectional width of the sealing air bag is at least 20 cm.

[0014] Preferably, the lower end surface of the top plate is detachably provided with a filling member.

[0015] Preferably, the filling member is an elastic air bag, and the top plate is provided with an inflation hole, one end of the inflation hole being connected with an external air pump device, and the other end of the inflation hole being in communication with the inner cavity of the elastic air bag.

[0016] The application also provides a water-free detection method, which is applied to a water-free detection device for the cylinder with the single sealing structure, and includes the following steps.

[0017] The cylinder to be detected is placed on a support frame.

[0018] The top plate is moved above the cylinder and pressed downward on the surface of the cylinder.

[0019] The jacking mechanism jacks the support frame toward the top plate, and the sealing member contacts the opening edge of the cylinder, so that the cylinder and the top plate are sealingly connected.

[0020] Air is filled into the inner cavity of the cylinder, and a detector is used to detect whether air leaks.

[0021] Preferably, the method further includes a replacement step of the sealing member.

[0022] The top plate moves away from the cylinder, the original sealing member is detached, and the replacement sealing member is reinstalled on the lower end surface of the top plate.

[0023] Preferably, the filling member is an elastic air bag, and the method further includes the steps of inflating and deflating the elastic air bag.

[0024] The size of the inner cavity of the cylinder is confirmed.

[0025] Inflation: the air pump device introduces an air amount suitable for the size of the inner cavity of the cylinder from the inflation hole, so that the elastic air bag is inflated and does not contact the inner wall of the cylinder.

[0026] Deflation: the inflation hole is opened, and the air in the elastic air bag is discharged to the outside from the inflation hole.

[0027] One of the above technical solutions has the following advantages or beneficial effects:

[0028] A kind of single-seal structure's cylinder body free water detection device and free water detection method, when detecting, top plate is pressed on the surface of cylinder body;Jacking mechanism is jacked to support frame in the direction of top plate, cylinder body is pressed on sealing element, sealing element deformation makes that cylinder body and top plate are sealed, then utilize external gas supply equipment from air inlet input gas, and staff can be detected by hand-held gas leak detector around the cylinder body leakage point just;The cylinder body of free water detection method does not contact water, need not waste water resources, simultaneously avoid the problem such as residual water stain in cylinder body, after detection, directly open top plate can remove cylinder body, it is simple and convenient to operate, need not drain and exhaust operation, gas is directly discharged atmosphere, cannot cause air pollution, effectively improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 It is the schematic diagram of the overall structure of one embodiment in the application;

[0030] Fig. 2 It is the side sectional view of one embodiment in the application;

[0031] Fig. 3 It is the lower end surface schematic diagram of the top plate of one embodiment in the application.

[0032] Wherein: top plate 1, air inlet 11, inflation hole 12, air bag inflation hole 13, support frame 2, sealing element 3, jacking mechanism 4, filler 5. DETAILED DESCRIPTION

[0033] The embodiments of the application are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the application, and cannot be understood as limiting the application.

[0034] In the description of the application, it needs to be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, only for facilitating the description of the application and simplifying the description, and therefore cannot be understood as limiting the application. The application must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as limiting the application. In addition, the features defined as "first", "second" can explicitly or implicitly include one or more features, for distinguishing the described features, without order, without difference.

[0035] In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The following will be described in detail Figs. 1 to 3 A single-seal structure cylinder water-free detection device is described in the embodiment of the present application, which comprises a top plate 1, a support frame 2, a sealing element 3 and a jacking mechanism 4.

[0038] The top plate 1 is arranged above the support frame 2.

[0039] The jacking mechanism 4 is connected with the support frame 2, and is used for jacking the support frame 2 in the direction of the top plate 1.

[0040] The sealing element 3 is arranged at the lower end surface of the top plate 1, and is arranged between the top plate 1 and the cylinder to be detected.

[0041] The top plate 1 is provided with a plurality of gas inlets 11; the gas inlets 11 penetrate the top surface and the bottom surface of the top plate 1; one end of the gas inlet 11 is connected with an external gas supply device.

[0042] The detection scheme of the water detection device of the prior art is to fill the cylinder with detection water that covers the cylinder, and to detect whether the cylinder leaks water. Compared with the water detection device of the prior art, the detection device does not need water. When detecting, the cylinder to be detected is placed on the support frame 2, the top plate 1 is moved above the cylinder and pressed downward on the surface of the cylinder; the jacking mechanism 4 jacks the support frame 2 in the direction of the top plate 1, so as to press the cylinder tightly against the lower end surface of the top plate 1. At this time, the sealing element 3 is in contact with the opening edge of the cylinder, so that the sealing element 3 deforms to seal the gap between the cylinder and the top plate 1, so as to seal the cylinder and the top plate 1. Then, the external gas supply device inputs gas from the gas inlet 11. In the embodiment, the gas filled into the inside of the cylinder can be nitrogen-hydrogen mixed gas. If the cylinder has a leakage point, the nitrogen-hydrogen mixed gas will leak out from the leakage point. At this time, the worker detects the leakage point around the cylinder by hand holding the hydrogen leak detector. When hydrogen is detected, it proves that there is a leakage point at the position.

[0043] The advantage of the water-free detection is that the cylinder does not contact water, water resources are not wasted, and problems such as water stains remaining in the cylinder are avoided. The water-free detection can be performed by filling nitrogen-hydrogen mixed gas and using a manual hydrogen detector to detect. After the detection is completed, the cylinder can be removed by directly opening the top plate 1. The operation is simple and convenient, and there is no need for drainage and exhaust operations. The nitrogen-hydrogen mixed gas is directly discharged into the atmosphere, which does not pollute the air and effectively improves the work efficiency.

[0044] Further, the sealing member 3 is detachably connected with the top plate 1. Specifically, in the embodiment, the sealing member 3 needs to correspond to the edge position of the cylinder to ensure the sealing connection between the cylinder and the top plate 1. The edge positions of cylinders of different specifications and sizes are different. In addition, the sealing member 3 will have a problem of inaccurate detection due to loose sealing after being used for a long time. Therefore, the sealing member 3 is detachably connected with the top plate 1 in the embodiment, which facilitates replacement of the sealing member 3.

[0045] In the alternative embodiment, the sealing member 3 is made of a plastic deformation sealing material. Specifically, in the embodiment, the sealing member 3 is made of a plastic deformation sealing material. During the process of pressing the top plate 1 against the cylinder, the cylinder and the top plate 1 extrude the sealing member 3, so that the sealing member 3 plastically deforms. Under extrusion, the sealing member 3 fills the gap between the cylinder and the top plate 1, thereby achieving the purpose of sealing, and the sealing effect is good.

[0046] Further, the sealing member 3 adopts a sealing air bag, and the sealing air bag is arranged in a ring shape. The air inlet 11 is arranged on the inner side of the sealing air bag. Specifically, in the embodiment, the sealing member 3 adopts a sealing air bag. During the process of pressing the top plate 1 against the cylinder, the cylinder and the top plate 1 extrude the sealing air bag. The sealing air bag is depressed under extrusion and generates a rebound force under the action of air pressure. The greater the extrusion force of the cylinder and the top plate 1, the greater the rebound force, thereby further improving the sealing effect. The ring-shaped structure of the sealing air bag corresponds to the ring-shaped edge of the cylinder.

[0047] The top plate 1 is provided with an air bag inflation hole 13, which is in communication with the sealing air bag. The air bag inflation hole 13 can be connected to an external air pump device to inflate the sealing air bag.

[0048] In the alternative embodiment, the cross-sectional width of the sealing air bag is at least 20 cm. Specifically, in the embodiment, the sealing member 3 needs to correspond to the edge position of the cylinder to ensure the sealing connection between the cylinder and the top plate 1. The edge positions of cylinders of different specifications and sizes are different. By setting the cross-sectional width of the sealing air bag to at least 20 cm, the sealing air bag can adapt to the sealing of cylinders within a certain size range without frequent replacement of the sealing air bag. The adaptability is high, and the work efficiency is effectively improved.

[0049] In this optional embodiment, a filler 5 is detachably provided on the lower end face of the top plate 1. Since the cavity between the cylinder and the top plate 1 is filled with the filler 5, the gas supply device does not need to input a large amount of nitrogen-hydrogen mixed gas to fill the cavity between the cylinder and the top plate 1. It only needs to input enough gas to fill the empty cavity between the cylinder and the top plate 1 excluding the filler 5. This shortens the time it takes for the nitrogen-hydrogen mixed gas to fill the cavity between the cylinder and the top plate 1, effectively improving the efficiency of filling the cavity with the nitrogen-hydrogen mixed gas, thereby improving the detection efficiency.

[0050] In this optional embodiment, the filler 5 is configured as an elastic airbag; the top plate 1 is provided with an inflation hole 12, one end of the inflation hole 12 is connected to an external air pumping device, and the other end of the inflation hole 12 is connected to the inner cavity of the elastic airbag.

[0051] Specifically, in this embodiment, the filler 5 is an elastic airbag. By filling the elastic airbag with gas, the elastic airbag can be expanded. The amount of gas filled can be adjusted according to the cylinder of different sizes, thereby controlling the size of the elastic airbag so that the size of the elastic airbag is adapted to the inner cavity size of the cylinder to be tested, without the need to disassemble and replace the filler 5. After determining the size of the elastic airbag, the entire batch of cylinders of the same specification and size can be tested, which makes it convenient to adjust the size of the filler 5 according to the size of the cylinder, and the adaptability is stronger.

[0052] When the elastic airbag needs to be inflated or its size adjusted, the inflation port 12 is connected to an external air pump. Air is then pumped into the elastic airbag through the inflation port 12, causing the elastic airbag to expand. When the elastic airbag needs to be deflated to reduce its volume, the inflation port 12 is connected to the atmosphere. Due to the high pressure inside the elastic airbag, the gas will be released into the outside atmosphere, thereby reducing its volume. This makes the operation more convenient.

[0053] This application also proposes a waterless testing method, applied to the waterless testing device for the cylinder block with the single-seal structure, comprising the following steps:

[0054] The cylinder block to be inspected is placed on support frame 2;

[0055] The top plate 1 moves above the cylinder and presses downward onto the cylinder surface;

[0056] The lifting mechanism 4 lifts the support frame 2 towards the top plate, and the sealing element 3 contacts the opening edge of the cylinder body, so that the cylinder body and the top plate 1 are sealed together.

[0057] Gas is injected into the cylinder, and a detector is used to check for gas leaks.

[0058] It should be noted that the gas filled into the inside of the cylinder body in the embodiment can be nitrogen-hydrogen mixed gas, the nitrogen-hydrogen mixed gas is filled into the inside of the cylinder body from the gas inlet 11 provided on the top plate 2, and the detector used can be a hydrogen leak detector. If the nitrogen-hydrogen mixed gas leaks, the hydrogen leak detector can detect that the gas contains hydrogen, so that it can be judged that the cylinder body has a water leakage problem. Compared with the water detection device in the prior art, the detection device does not need water. When detecting, the cylinder body to be detected is placed on the support frame 2, the top plate 1 is moved above the cylinder body and pressed downward on the surface of the cylinder body; the jacking mechanism 4 jacks the support frame 2 in the direction of the top plate 1, and the cylinder body is pressed on the sealing element 3, so that the sealing element 3 deforms to seal the gap between the cylinder body and the top plate 1; then the external gas supply device inputs the nitrogen-hydrogen mixed gas from the gas inlet 11. At this time, the worker detects the leakage points around the cylinder body by hand holding the hydrogen leak detector. When hydrogen is detected, it proves that there is a leakage point at the position. The advantages of water-free detection are that the cylinder body does not contact water, water resources are not wasted, and problems such as residual water stains in the cylinder body are avoided. The water-free detection only fills the nitrogen-hydrogen mixed gas, and the detection can be performed by manually holding the hydrogen detector. After the detection is completed, the top plate 1 is directly opened, and the cylinder body can be removed. The operation is simple and convenient, and there is no need for drainage and exhaust operations. The nitrogen-hydrogen mixed gas is directly discharged into the atmosphere, which will not pollute the air, and the working efficiency is effectively improved.

[0059] Further, the method includes a replacement step of the sealing element 3:

[0060] The top plate 1 moves away from the cylinder body, the original sealing element 3 is disassembled, and the replacement sealing element 3 is reinstalled to the lower end surface of the top plate 1.

[0061] Specifically, since the edge positions of cylinder bodies of different sizes are different in size, different sizes of sealing elements 3 need to be replaced according to cylinder bodies of different sizes. When replacing the sealing element 3, the top plate 1 first leaves the surface of the cylinder body, the sealing element 3 and the top plate 1 are detachably connected, the original sealing element 3 is disassembled, and the replacement sealing element 3 is reinstalled, so that the replacement of the sealing element 3 is completed, and the working efficiency is effectively improved.

[0062] Further, the filling element 5 is an elastic air bag, and the method further includes an inflation and deflation step of the elastic air bag:

[0063] Confirming the size of the inner cavity of the cylinder body;

[0064] Inflation: The pump device inputs an amount of air suitable for the size of the inner cavity of the cylinder body from the inflation hole, so that the elastic air bag expands and does not contact the inner wall of the cylinder body;

[0065] Deflation: The inflation hole is opened, and the air in the elastic air bag is discharged to the outside from the inflation hole.

[0066] Specifically, in the embodiment, when the elastic air bag needs to be inflated or adjusted in size, the inflation hole is connected with the external pumping device, and then the pumping device is used to inflate air into the elastic air bag through the inflation hole, so that the elastic air bag is inflated and does not contact the inner wall of the cylinder body, thereby avoiding the problem of plugging the pipeline of the cylinder body and causing detection error. When the elastic air bag needs to be deflated and the volume of the elastic air bag needs to be reduced, the inflation hole is connected with the atmosphere, and the gas in the elastic air bag will be released to the atmosphere due to the large pressure, so as to achieve the purpose of reducing the volume, and the operation is more convenient.

[0067] Other configurations and operations of the single-seal-structure cylinder water-free detection device and the water-free detection method according to the embodiment of the present application are known to those skilled in the art, and will not be described in detail here.

[0068] In the description of the present specification, the description referring to the terms "embodiment", "example", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0069] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cylinder block waterless detection device with a single-seal structure, characterized in that: Includes top plate, support frame, seals and lifting mechanism; The top plate is positioned above the support frame; The lifting mechanism is connected to the support frame and is used to lift the support frame toward the top plate; The sealing element is disposed on the lower end face of the top plate, and the sealing element is disposed between the top plate and the cylinder being tested; The top plate is provided with several air inlets; the air inlets penetrate the top and bottom surfaces of the top plate; one end of the air inlet is connected to an external gas supply device. The lower end face of the top plate is detachably provided with a filler; The filling element is configured as an elastic airbag; the top plate is provided with an inflation hole, one end of which is connected to an external air pumping device, and the other end of which is connected to the inner cavity of the elastic airbag.

2. The cylinder block waterless detection device with a single-seal structure according to claim 1, characterized in that: The seal is detachably connected to the top plate.

3. The cylinder block waterless detection device with a single-seal structure according to claim 1, characterized in that: The seal is made of a plastically deformable sealing material.

4. The cylinder block waterless detection device with a single-seal structure according to claim 3, characterized in that: The sealing element is a sealing airbag, which is arranged in a ring shape, and the air inlet is located on the inner side of the sealing airbag.

5. The cylinder block waterless detection device with a single-seal structure according to claim 4, characterized in that: The cross-sectional width of the sealing airbag is at least 20cm.

6. A waterless detection method, characterized in that: The cylinder block waterless testing device with a single-seal structure as described in any one of claims 1-5 includes the following steps: The cylinder block to be inspected is placed on the support frame; The top plate moves above the cylinder block and presses downwards onto the cylinder block surface; The lifting mechanism lifts the support frame towards the top plate, and the seal contacts the opening edge of the cylinder body, thus sealing the connection between the cylinder body and the top plate. Gas is injected into the cylinder, and a detector is used to check for gas leaks.

7. The waterless detection method according to claim 6, characterized in that: Including the steps for replacing the seals: The top plate moves away from the cylinder body, removes the original seals, and reinstalls the replacement seals on the lower end face of the top plate.

8. The waterless detection method according to claim 6, characterized in that: The filling material is an elastic airbag, and the method further includes the steps of inflating and deflating the elastic airbag: Confirm the internal size of the cylinder block; Inflation: The air pumping device introduces an amount of air into the cylinder cavity through the inflation port, which is appropriate for the size of the cylinder cavity, so that the elastic airbag inflates without contacting the inner wall of the cylinder. Deflating: Open the inflation port, and the air inside the elastic airbag will be released to the outside through the inflation port.

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