Air tightness detection device for valve processing

Abstract

The utility model is applicable to the technical field of valve processing, and provides an air tightness detection device for valve processing, which comprises a base with two sliding openings at the top; the double-shaft motor is fixedly mounted on the inner wall of the bottom of the base; the two screw rods are fixedly mounted at the two ends of an output shaft of the double-shaft motor respectively and are rotationally connected with the inner wall of the base; the two sliding plates are respectively arranged on the two screw rods in a threaded and sleeving manner and are respectively connected with the inner walls of the two sides of the two sliding openings in a sliding manner; and the two detection mechanisms are respectively arranged on the two sliding plates, and the two detection mechanisms are used for detecting the air tightness of the valve. According to the air tightness detection device for valve processing, the air tightness of the valve can be rapidly detected, the air leakage position on the valve can be rapidly confirmed, operation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve processing, and in particular relates to an air tightness detection device for valve processing. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc.

[0003] During the valve processing, an air tightness detection device is needed to detect the air tightness of the valve. However, the existing air tightness detection device for valve processing cannot efficiently determine the air tightness of the valve and the location of the air leakage, which is quite inconvenient. Utility Model Content

[0004] The utility model provides an air tightness detection device for valve processing, aiming to solve the problem that the existing air tightness detection device for valve processing proposed in the above background technology cannot determine the air tightness of the valve and the position of the air leakage more efficiently.

[0005] To solve the above problems, the utility model is implemented as follows: an air tightness detection device for valve processing, comprising: a base with two sliding openings symmetrically distributed about the center on the top; a dual-axis motor fixedly installed in the center of the inner wall at the bottom of the base; two screws respectively fixedly installed at both ends of the output shaft of the dual-axis motor and rotatably connected to the inner wall of the base; two sliding plates respectively threadedly sleeved on the two screws and respectively slidably connected to the inner walls on both sides of the two sliding openings and extending outward; two detection mechanisms respectively arranged on the upper parts of the two sliding plates, the two detection mechanisms are used to detect the air tightness of the valve; two pressurizing mechanisms respectively arranged on the two sliding plates, the two pressurizing mechanisms are used to increase the air pressure in the two detection mechanisms.

[0006] Preferably, a plurality of limit rods are fixedly mounted on the inner wall of the base, and the plurality of limit rods are all slidably connected to the two sliding plates.

[0007] Preferably, the detection mechanism includes: a detection cavity fixedly installed on the opposite surfaces of the two sliding plates; a positioning cover fixedly installed on the side of the detection cavity away from the sliding plate and adapted to the valve; a first circular opening opened on the detection cavity; a second circular opening opened on the positioning cover and concentric with the first circular opening; and an annular sealing gasket arranged on the inner wall of the positioning cover.

[0008] Preferably, the pressurizing mechanism comprises: a sublimation box and an air pump fixedly mounted on the sliding plate; an air inlet pipe arranged on the sublimation box and connected to the air pump; and an air guide pipe arranged at the air outlet of the air pump and connected to the detection chamber.

[0009] Preferably, both of the two air guide tubes are provided with a one-way valve, and both of the two detection cavities are provided with an air pressure sensor.

[0010] Preferably, an electric cylinder is fixedly mounted at the top center of the base, a support plate is fixedly mounted on the output rod of the electric cylinder, and an arc-shaped groove is formed on the support plate.

[0011] Preferably, a controller is provided on the base, and the controller is electrically connected to the dual-axis motor, two air pumps, two air pressure sensors and the electric cylinder.

[0012] Compared with the related art, the air tightness detection device for valve processing provided by the utility model has the following beneficial effects:

[0013] Compared with the prior art, the present invention provides an air tightness detection device for valve processing. The base serves as the basis of the entire detection device and provides stable support. The two sliding openings on the top allow the sliding plate to slide therein, thereby realizing the adjustment of the position of the detection mechanism, which is convenient for detecting valves of different sizes. The dual-axis motor serves as a power source and simultaneously drives the two screws to rotate through its two output shafts. The screw is threadedly connected to the sliding plate so that when the screw rotates, the sliding plate can move along the axial direction of the screw, thereby adjusting the position of the detection mechanism. This design ensures that the two detection mechanisms can be synchronously and accurately moved to the specified position, thereby improving the detection efficiency. The sliding plate serves as a mounting platform for the detection mechanism and the pressurizing mechanism and can slide along the screw. The design of sliding connection with the inner walls on both sides of the sliding opening ensures the stability of the sliding plate during movement and reduces the detection error. The two detection mechanisms arranged on the two sliding plates are used to detect the air tightness of the valve. The pressurizing mechanism is used to increase the air pressure in the detection mechanism so as to form a sufficient pressure difference during the detection process, thereby more accurately evaluating the air tightness of the valve. By working in coordination with the detection mechanism, the pressurizing mechanism can quickly and accurately complete the pressure application in a short time, thereby improving the detection efficiency.

[0014] To sum up, the air tightness detection device for valve processing provided by this patent realizes efficient and accurate detection of valve air tightness through precise coordination of components such as dual-axis motors, screws, and sliding plates. The device has the advantages of simple structure, easy operation, and high detection efficiency, and has broad application prospects in the field of valve processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the main cross-sectional structure of an air tightness detection device for valve processing provided by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the front appearance structure;

[0017] Figure 3 for Figure 1 Schematic diagram of the three-dimensional assembly structure of the sublimation box and the air intake pipe;

[0018] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG.

[0019] Figure numerals: 1. base; 2. sliding opening; 3. dual-axis motor; 4. screw; 5. sliding plate; 6. limit rod; 7. detection chamber; 8. positioning cover; 9. first circular opening; 10. second circular opening; 11. annular sealing gasket; 12. sublimation box; 13. air pump; 14. air inlet pipe; 15. air guide pipe; 16. one-way valve; 17. air pressure sensor; 18. electric cylinder; 19. support plate; 20. arc groove; 21. controller. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The utility model provides an air tightness detection device for valve processing, such as Figure 1-4 As shown, the air tightness detection device for valve processing includes: a base 1 with two sliding openings 2 symmetrically distributed about the center on the top; a double-axis motor 3 fixedly installed in the center of the inner wall at the bottom of the base 1; two screws 4 respectively fixedly installed at both ends of the output shaft of the double-axis motor 3 and rotatably connected to the inner wall of the base 1; two sliding plates 5 respectively threadedly sleeved on the two screws 4 and respectively slidably connected to the inner walls on both sides of the two sliding openings 2 and extending outward; two detection mechanisms respectively arranged on the upper parts of the two sliding plates 5, and the two detection mechanisms are used to detect the air tightness of the valve; two pressurizing mechanisms respectively arranged on the two sliding plates 5, and the two pressurizing mechanisms are used to increase the air pressure in the two detection mechanisms.

[0023] In this embodiment, the base 1 serves as the foundation of the entire detection device and provides a stable support. The two sliding openings 2 opened on the top allow the sliding plate 5 to slide therein, thereby realizing the adjustment of the position of the detection mechanism and facilitating the detection of valves of different sizes. The dual-axis motor 3 serves as a power source and simultaneously drives the two screws 4 to rotate through its two output shafts. The screw 4 is threadedly connected to the sliding plate 5 so that when the screw 4 rotates, the sliding plate 5 can move along the axial direction of the screw 4, thereby adjusting the position of the detection mechanism. This design ensures that the two detection mechanisms can be synchronously and accurately moved to the specified position, thereby improving the detection efficiency. The sliding plate 5 serves as a mounting platform for the detection mechanism and the pressurizing mechanism and can slide along the screw 4. The design of sliding connection with the inner walls on both sides of the sliding opening 2 ensures the stability of the sliding plate 5 during movement and reduces the detection error. The two detection mechanisms arranged on the two sliding plates 5 are used to detect the air tightness of the valve. The pressurizing mechanism is used to increase the air pressure in the detection mechanism so as to form a sufficient pressure difference during the detection process, thereby more accurately evaluating the air tightness of the valve. By working in coordination with the detection mechanism, the pressurizing mechanism can quickly and accurately complete the pressure application in a short time, thereby improving the detection efficiency.

[0024] To sum up, the air tightness detection device for valve processing provided by this patent realizes efficient and accurate detection of valve air tightness through precise coordination of components such as dual-axis motors, screws, and sliding plates. The device has the advantages of simple structure, easy operation, and high detection efficiency, and has broad application prospects in the field of valve processing.

[0025] In a further preferred embodiment of the present invention, a plurality of limit rods 6 are fixedly mounted on the inner wall of the base 1 , and the plurality of limit rods 6 are all slidably connected to the two sliding plates 5 .

[0026] In this embodiment, the two sliding plates 5 can be guided and limited by a plurality of limiting rods 6 .

[0027] In a further preferred embodiment of the utility model, the detection mechanism includes: a detection chamber 7 fixedly installed on the opposite surfaces of the two sliding plates 5; a positioning cover 8 fixedly installed on the side of the detection chamber 7 away from the sliding plate and adapted to the valve; a first circular opening 9 opened on the detection chamber 7; a second circular opening 10 opened on the positioning cover 8 and concentric with the first circular opening; and an annular sealing gasket 11 arranged on the inner wall of the positioning cover 8.

[0028] In this embodiment, the valve can be positioned by two positioning covers 8 , and the sealing performance between the valve and the positioning covers 8 can be improved by the annular sealing gasket 11 .

[0029] In a further preferred embodiment of the utility model, the pressurizing mechanism includes: a sublimation box 12 and an air pump 13 fixedly mounted on the sliding plate 5; an air inlet pipe 14 arranged on the sublimation box 12 and connected to the air pump 13; and an air guide pipe 15 arranged at the air outlet end of the air pump 13 and connected to the detection chamber 7.

[0030] In this embodiment, during detection, dry ice is placed in the sublimation box 12, and the air pump 13 is started. The air pump 13 draws air and the mist after the dry ice sublimates into the detection chamber 7 through the air inlet pipe 14 and injects them into the detection chamber 7 through the air guide pipe 15. The air and mist in the detection chamber 7 enter the valve along the first circular opening 9 and the second circular opening 10, thereby lifting the two detection chambers 7 and the other parts inside the valve. When there is a leak in the valve, the air and the mist generated by the sublimation of dry ice will be sprayed from the leak point to the outside of the valve, so that the staff can confirm the leak point on the valve.

[0031] In a further preferred embodiment of the present invention, both of the two air guide tubes 15 are provided with a one-way valve 16 , and both of the two detection chambers 7 are provided with an air pressure sensor 17 .

[0032] In this embodiment, the air pressure change in the detection chamber 7 can be detected by the air pressure sensor 17. When the air pressure in the detection chamber 7 drops rapidly, it means that the valve may be leaking.

[0033] In a further preferred embodiment of the utility model, an electric cylinder 18 is fixedly mounted at the top center of the base 1 , a support plate 19 is fixedly mounted on the output rod of the electric cylinder 18 , and an arc-shaped groove 20 is formed on the support plate 19 .

[0034] In this embodiment, the valve can be supported by the support plate 19 and the arc-shaped groove 20 thereon, and the support plate 19 can be driven to move up and down by the electric cylinder 18, thereby driving the valve thereon to move up and down, thereby aligning the valve with the two positioning covers 8.

[0035] In a further preferred embodiment of the present invention, a controller 21 is disposed on the base 1 , and the controller 21 is electrically connected to the dual-axis motor 3 , the two air pumps 13 , the two air pressure sensors 17 and the electric cylinder 18 .

[0036] In this embodiment, the device can be operated and controlled by the controller 21 .

[0037] In summary, compared with the relevant technology, the present device can not only quickly detect the air tightness of the valve, but also quickly confirm the leakage position on the valve, and is more convenient to operate and saves time and effort.

[0038] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0039] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An air tightness detection device for valve processing, characterized in that: include: A base with two sliding openings symmetrically distributed about the center is provided on the top; a dual-axis motor is fixedly mounted on the center of the inner wall at the bottom of the base; Two screws fixedly mounted at both ends of the dual-axis motor output shaft and rotatably connected to the inner wall of the base; two sliding plates threadedly sleeved on the two screws and slidably connected to the inner walls of the two sides of the two sliding openings and extending outward; two detection mechanisms respectively arranged on the upper part of the two sliding plates, the two detection mechanisms are used to detect the air tightness of the valve; two pressurizing mechanisms respectively arranged on the two sliding plates, the two pressurizing mechanisms are used to increase the air pressure in the two detection mechanisms.

2. The air tightness detection device for valve processing according to claim 1, characterized in that: A plurality of limiting rods are fixedly mounted on the inner wall of the base, and the plurality of limiting rods are all slidably connected with the two sliding plates.

3. The air tightness detection device for valve processing according to claim 1, characterized in that: The detection mechanism includes: a detection cavity fixedly installed on the opposite surfaces of the two sliding plates; a positioning cover fixedly installed on the side of the detection cavity away from the sliding plate and adapted to the valve; a first circular opening opened on the detection cavity; a second circular opening opened on the positioning cover and concentric with the first circular opening; and an annular sealing gasket arranged on the inner wall of the positioning cover.

4. The air tightness detection device for valve processing according to claim 3, characterized in that: The pressurizing mechanism comprises: a sublimation box and an air pump fixedly mounted on the sliding plate; an air inlet pipe arranged on the sublimation box and connected to the air pump; and an air guide pipe arranged at the air outlet of the air pump and connected to the detection chamber.

5. The air tightness detection device for valve processing according to claim 4, characterized in that: Both of the two air guide tubes are provided with a one-way valve, and both of the two detection chambers are provided with an air pressure sensor.

6. The air tightness detection device for valve processing according to claim 5, characterized in that: An electric cylinder is fixedly installed at the center of the top of the base, a support plate is fixedly installed on the output rod of the electric cylinder, and an arc-shaped groove is opened on the support plate.

7. The air tightness detection device for valve processing according to claim 6, characterized in that: A controller is arranged on the base, and the controller is electrically connected to the dual-axis motor, two air pumps, two air pressure sensors and the electric cylinder.

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