A valve air tightness detection device and system

Abstract

The present invention discloses a valve air tightness detection device and system, comprising a detection pool and a turntable, wherein the detection pool contains a detection liquid, the turntable is half immersed in the detection liquid, and a plurality of valve clamping structures are arranged circumferentially on the turntable, which are used to drive a plurality of valves to be immersed in the detection liquid at the same time, so as to realize simultaneous detection of a plurality of valves. The present invention can significantly improve the detection efficiency of valve air tightness.

Description

Technical Field

[0001] The present invention relates to the technical field of valve detection, and more particularly to a valve air tightness detection device and system. Background Art

[0002] The air tightness of a valve is a very important function of valve quality. At present, the existing valve air tightness detection methods usually require complicated loading and unloading procedures, making the detection extremely inconvenient and inefficient.

[0003] Therefore, how to improve the detection efficiency of valve air tightness is a problem that technical personnel in this field need to solve urgently. Summary of the invention

[0004] In view of this, the present invention provides a valve air tightness detection device and system to overcome the above-mentioned defects in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] The present invention discloses a valve air tightness detection device, which is characterized by comprising a detection pool and a rotating disk.

[0007] The detection pool contains detection liquid, the turntable is half immersed in the detection liquid, and a plurality of valve clamping structures are arranged circumferentially on the turntable to drive a plurality of valves to be immersed in the detection liquid at the same time, so as to realize simultaneous detection of the plurality of valves.

[0008] In order to further optimize the above technical solution, a plurality of the valve clamping structures are evenly arranged in a circle on the surface of the turntable.

[0009] In order to further optimize the above technical solution, the valve clamping structure has sealing blocks at both ends for sealing the two ends of the valve, and one of the sealing blocks has a built-in gas passage for connecting the output pipeline of the pressure air pump to pressurize the valve.

[0010] In order to further optimize the above technical solution, the turntable is driven by a motor, and the motor is located outside the detection pool.

[0011] In order to further optimize the above technical solution, a temperature control device is installed in the detection pool to adjust the temperature of the detection liquid.

[0012] On the other hand, the present invention also discloses a valve air tightness detection system, which is characterized by comprising a control terminal, a motor, a pressure pump, and the detection pool and the turntable as described above.

[0013] The motor is used to drive the turntable to drive the installed valve to rotate;

[0014] The pressure pump is used to pressurize the valve;

[0015] The control terminal is used to control the motor to rotate the turntable at a required frequency, and to control the pressure pump to pressurize the valve according to the rotation signal of the turntable.

[0016] In order to further optimize the above technical solution, the rotation frequency comprehensively considers the valve pressurization time, pressure holding time, turntable rotation time and installation time.

[0017] It can be seen from the above technical solutions that the present invention discloses a valve air tightness detection device and system. Compared with the prior art, it realizes the simultaneous measurement of the air tightness of multiple valves through a simple structure, effectively improving the detection efficiency.

[0018] In addition, the present invention regulates the detection liquid through the temperature control device to keep the detection liquid at a specified constant temperature, thereby eliminating the influence of ambient temperature changes and improving the accuracy of valve air tightness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 The accompanying drawing is a schematic diagram of the overall structure of the valve air tightness detection device provided by the present invention;

[0021] Figure 2 The accompanying drawing is a schematic diagram of the valve clamping structure provided by the present invention;

[0022] Figure 3 The accompanying drawing is a schematic diagram of another valve clamping structure provided by the present invention. DETAILED DESCRIPTION

[0023] In order to enable ordinary persons in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.

[0024] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of the embodiments of the present disclosure as defined by the claims and their equivalents. Various specific details are included to assist in understanding, but these details are considered to be exemplary only. Therefore, one of ordinary skill in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and structures are omitted for clarity and brevity.

[0025] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Therefore, it should be clear to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustrative purposes only and is not intended to limit the purpose of the present disclosure as defined by the claims and their equivalents.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0027] The embodiment of the present invention discloses a valve air tightness detection device and system, aiming to solve the problem of low efficiency of valve air tightness detection.

[0028] Further, the detection device of the present invention, such as Figure 1 As shown, it specifically includes a detection pool 8 and a turntable 1,

[0029] Among them, the detection pool 8 contains the detection liquid 5, and the detection liquid 5 is preferably water. The turntable 1 is half immersed in the detection liquid 5, and multiple valve clamping structures 2 are arranged circumferentially on the turntable 1 to drive multiple valves 6 to be immersed in the detection liquid 5 at the same time, so as to realize simultaneous detection of multiple valves 6.

[0030] In this embodiment, a plurality of valve clamping structures 2 are arranged on the circumference of the rotating disk 1. The number can be 6, 8 or set as required. The rotating disk 1 is driven by a motor, and the motor is located outside the detection pool 8.

[0031] One implementation method is: fixedly connecting the turntable 1 to the output shaft 9 of the motor, directly driving the turntable 1 to rotate through the output shaft 9 of the motor, or connecting the motor output shaft 9 to a gear, and setting the rotation center of the turntable 1 to a protrusion matching the gear, thereby driving the turntable 1 to rotate through the gear structure.

[0032] It should be noted that when fixing, the center of the turntable 1 can be selected or not, as long as the rotation can be achieved. In addition, the shape of the turntable 1 can be set to be circular, square, polygonal or other shapes.

[0033] In the present invention, both ends of the valve clamping structure 2 are provided with sealing blocks for sealing both ends of the valve, and one of the sealing blocks has a built-in gas passage for connecting the output pipeline of the pressure air pump to pressurize the valve.

[0034] In this embodiment, Figure 2 As shown, it includes a bottom plate 17 and a top plate 14, wherein one side of the bottom plate 17 is directly and rigidly fixed on the disk surface of the turntable 1, and the other side is provided with a first blocking block 10, and the bottom plate 17 is connected to the top plate 14 through a stabilizing slide bar 16. Furthermore, a push plate 15 is movably connected to the stabilizing slide bar 16, and a second blocking block 13 is provided on the side of the push plate 15 facing the bottom plate, and the valve 6 is sealed by the first blocking block 10 and the second blocking block 13; in this structure, the top plate 14 is used to fix the driving unit 12 of the push plate 15. In one embodiment, it can be set as a cylinder so that the telescopic shaft of the cylinder passes through the top plate 14 to achieve control of the push plate 15.

[0035] In another embodiment, if Figure 3 As shown, one side of the bottom plate 17 is rigidly fixed to the surface of the turntable 1, and the other side is provided with a first blocking block 10, wherein the second blocking block 13 is arranged on the top of a door-shaped frame 18, and the periphery of the first blocking block 10 is provided with a clamping groove 19 matching the structure on both sides of the door-shaped frame. This method can realize the sealing of the valve by a manipulator using the door-shaped structure and the clamping groove.

[0036] Furthermore, in order to facilitate pressurization of the valve for subsequent testing, a gas passage is built into one of the blocking blocks, such as 11, for connecting to the output pipe 4 of the pressure air pump to pressurize the valve.

[0037] In order to ensure the detection efficiency, a blocking block in each valve clamping structure 2 of the present invention is connected to a gas output pipeline 4 to achieve simultaneous pressurization and detection of multiple valves 6.

[0038] In order to further optimize the above technical solution and improve the detection accuracy, the present invention installs a temperature control device 7 in the detection pool to adjust the temperature of the detection liquid. One implementation method is to place the temperature control device 7 at the bottom of the detection pool 8 to achieve air tightness detection of the valve body at various temperatures, especially at low temperatures, when the valve body sealing gasket shrinks due to cold, which effectively improves the precision of the valve body air tightness detection.

[0039] That is, the present invention takes into account the influence of the thermal expansion and contraction effect of the valve body sealing gasket caused by temperature changes on the air tightness of the valve body, especially the air tightness detection when the gasket is tightened in a low-temperature environment, which greatly improves the precision of the air tightness detection.

[0040] When the valve air tightness detection device of the present invention is working, the automatic turntable 1 starts to rotate under the drive of the motor. When the valve clamping structure 2 is located above the liquid surface, the valve body 6 to be tested is installed. The valve body 6 is fixed under the mechanical action of the clamping structure 2. Then the valve body rotates below the liquid surface as the turntable rotates. The air pump is started to fill the valve body with pressurized gas. It should be noted that the temperature of the test liquid has been adjusted by the temperature control device 7 at this time, and the valve body is tested in this liquid environment. After the whole process, the automatic and precise detection of the air tightness of the valve body is completed.

[0041] On the other hand, in order to illustrate the application of the valve air tightness detection device disclosed in the present application, the present invention also provides a valve air tightness detection system.

[0042] The system specifically includes a control terminal, a motor, a pressure pump, and the detection cell and the turntable as described above.

[0043] The motor is used to drive the turntable to drive the installed valve to rotate;

[0044] The pressure pump is used to pressurize the valve;

[0045] The control terminal is used to control the motor to rotate the turntable at a required frequency, and to control the pressure pump to pressurize the valve according to the rotation signal of the turntable.

[0046] The detection system disclosed in the present invention can have a high degree of automation and can effectively improve the efficiency of valve body detection.

[0047] In order to optimize the above technical solution, the rotation frequency can comprehensively consider the valve pressurization time, pressure holding time, turntable rotation time and installation time.

[0048] The detection device or system disclosed in the present invention can be used in the detection of the air tightness of valves, and in particular can be used for the air tightness detection that needs to be performed before the valve leaves the factory. The high degree of automation and high efficiency of the present invention and the precise detection characteristics can ensure the qualified air tightness detection of large quantities of valve bodies before the products leave the factory.

[0049] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0050] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A valve air tightness detection device, characterized in that: Including detection pool and turntable, The detection pool contains detection liquid, the turntable is half immersed in the detection liquid, and a plurality of valve clamping structures are arranged circumferentially on the turntable to drive a plurality of valves to be immersed in the detection liquid at the same time, so as to realize simultaneous detection of the plurality of valves.

2. A valve air tightness detection device according to claim 1, characterized in that: A plurality of the valve clamping structures are evenly arranged on the circumference of the rotating disk.

3. A valve air tightness detection device according to claim 1, characterized in that: The valve clamping structure has sealing blocks at both ends for sealing the two ends of the valve, and one of the sealing blocks has a built-in gas passage for connecting to the output pipeline of the pressure air pump to pressurize the valve.

4. A valve air tightness detection device according to claim 1, characterized in that: The turntable is driven by a motor, and the motor is located outside the detection pool.

5. A valve air tightness detection device according to claim 1, characterized in that: A temperature control device is installed in the detection pool to adjust the temperature of the detection liquid.

6. A valve air tightness detection system, characterized in that: It comprises a control terminal, a motor, a pressure pump, and a detection pool and a turntable in a valve air tightness detection device as described in any one of claims 1 to 5, The motor is used to drive the turntable to drive the installed valve to rotate; The pressure pump is used to pressurize the valve; The control terminal is used to control the motor to rotate the turntable at a required frequency, and to control the pressure pump to pressurize the valve according to the rotation signal of the turntable.

7. A valve air tightness detection system according to claim 6, characterized in that: The rotation frequency comprehensively considers the valve pressurization time, pressure holding time, turntable rotation time and installation time.

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