Air tightness test pneumatic tool

Abstract

The utility model discloses a pneumatic tool for testing air tightness. The pneumatic tool comprises a bottom plate, a vertically-arranged fixing plug is installed on the bottom plate, a water injection opening is formed in the bottom plate, a water inlet is formed in the fixing plug, the water injection opening is communicated with the water inlet through a communicating groove, and the bottom plate is fixedly connected with an upper plate which is arranged above the bottom plate and is parallel to the bottom plate through a plurality of supporting rods. A horizontal air cylinder I and a horizontal air cylinder II which are horizontally arranged are symmetrically installed on the two sides of the fixed plug, the movable portion of the horizontal air cylinder I is arranged on the side close to the fixed plug, an upper air cylinder which is vertically arranged is fixed to the upper plate, and the movable portion of the upper air cylinder is located on the lower side of the upper air cylinder and located below the upper plate. Movable plugs are fixed at the movable ends of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II; and air supply pipes of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II are connected with an air valve switch. The air tightness test pneumatic tool is simple in operation, good in test consistency, high in test efficiency and good in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to test frock technical field relates to a kind of airtightness test pneumatic frock. BACKGROUND

[0002] For cast products, due to the limitation of casting process, parts will inevitably have some casting defects such as loose and porosity. Valve parts have high requirements for air tightness, and after the production of cast valve parts is completed, air tightness test is often needed to ensure that the product has no casting defects and no leakage risk. Currently, the air tightness of valve parts is tested by plugging the opening and then injecting water into it. Whether it meets the requirements is determined by observing the water leakage. The above operation is complicated and complex, and the operation consistency is poor. The operation efficiency is low, and the test relies on the inspection of the test personnel, i.e. the test reliability is poor.

[0003] Therefore, it is of great practical significance to develop a cast valve air tightness test tool that is easy to operate, has good test consistency, high test efficiency and good reliability. UTILITY MODEL CONTENT

[0004] Since the prior art has the above defects, the utility model provides a cast valve air tightness test tool that is easy to operate, has good test consistency, high test efficiency and good reliability, to solve the problem of complicated and complex operation, poor operation consistency, low operation efficiency and test reliability in cast valve air tightness test.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of airtightness test pneumatic frock, including bottom plate;

[0007] The fixed plug is vertically arranged on the bottom plate, a water injection port is opened on the bottom plate, a water inlet is opened on the fixed plug, the water injection port is communicated with the water inlet through the communication groove, the bottom plate is fixedly connected with the upper plate arranged above the bottom plate and parallel to the bottom plate through the plurality of supporting rods, the fixed plug is arranged in the space between the upper plate and the bottom plate, horizontal cylinders I and II are symmetrically arranged on both sides of the fixed plug, the movable part of the horizontal cylinder I is arranged near the fixed plug side, the upper cylinder is fixed on the upper plate and arranged vertically, the movable part of the upper cylinder is located on the lower side of the upper cylinder and below the upper plate, the movable part of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II are fixed with movable plugs, and the gas supply pipes of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II are connected with the gas valve switch, so that the movement of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II can be controlled through the gas valve switch.

[0008] The utility model discloses a pneumatic tool for airtightness test, and the structure is rationally designed, the movable plug arranged on the upper, left and right and the fixed plug below can be used to seal each opening of the product to be tested, and water is injected into the product to be tested through the water injection port to complete the airtightness test (of course, it is also applicable to three-port valves), compared with manual test, the operation is simple, the test consistency is good, the test efficiency is high and the reliability is good, and the utility model discloses a pneumatic tool for airtightness test has very good application prospect.

[0009] As a preferred technical scheme:

[0010] The utility model discloses a pneumatic tool for airtightness test as described above, and the horizontal cylinder I is fixed on the bottom plate through the adjusting pad block I;

[0011] The horizontal cylinder II is fixed on the bottom plate through the adjusting pad block II.

[0012] The utility model discloses a pneumatic tool for airtightness test as described above, and the movable end of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II is connected with the movable plug through the thread.

[0013] The utility model discloses a pneumatic tool for airtightness test as described above, and the movable end of the upper cylinder is connected with the upper plug;

[0014] The movable end of the horizontal cylinder I is connected with the horizontal plug I;

[0015] The movable end of the horizontal cylinder II is connected with the horizontal plug II.

[0016] The utility model discloses a pneumatic tool for airtightness test as described above, and the fixed plug, the upper plug, the horizontal plug I and the horizontal plug II are all equipped with the sealing washer.

[0017] The utility model discloses a pneumatic tool for airtightness test as described above, and the four supporting rods are arranged on the four corners of the upper plate.

[0018] The utility model discloses a pneumatic tool for airtightness test as described above, and the supporting rod is vertically fixed with the bottom plate.

[0019] The above technical scheme is only a feasible technical scheme of the utility model, and the protection scope of the utility model is not limited to this, and a person skilled in the art can reasonably adjust the specific design according to actual needs.

[0020] Compared with the prior art, the utility model has the following advantages or beneficial effects:

[0021] (1) the utility model discloses a pneumatic tool for airtightness test, and the structure is rationally designed, the movable plug arranged on the upper, left and right and the fixed plug below can be used to seal each opening of the product to be tested, and water is injected into the product to be tested through the water injection port to complete the airtightness test, the operation is simple;

[0022] (2) The utility model discloses airtightness test pneumatic tool, good applicability can be applicable to three, four valve airtightness test;

[0023] (3) The utility model discloses airtightness test pneumatic tool, compared with manual test, test consistency is good, test efficiency is high and reliability is good, and it is extremely application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model and its features, shape and advantages will become more obvious through reading the detailed description of the non - limiting embodiment referring to the following drawings. Same mark indicates same part in all drawings. The drawing can not be drawn according to proportion, and the emphasis is on showing the main idea of the utility model.

[0025] Fig. 1 It is the schematic diagram of the three-dimensional structure of the product to be measured;

[0026] Fig. 2 It is the bottom view of the product to be measured;

[0027] Fig. 3 It is the sectional view of the product to be measured;

[0028] Fig. 4 It is the schematic diagram of the airtightness test pneumatic tool of the utility model to the product to be measured;

[0029] Fig. 5 It is the front view of the airtightness test pneumatic tool of the utility model;

[0030] Fig. 6 It is the right view of the airtightness test pneumatic tool of the utility model;

[0031] Fig. 7 It is the left view of the airtightness test pneumatic tool of the utility model;

[0032] Fig. 8 It is the top view of the airtightness test pneumatic tool of the utility model;

[0033] Wherein, 1 is the product to be measured, 11 is the bottom opening, 12 is the horizontal opening I, 13 is the horizontal opening II, 14 is the top opening, 2 is the airtightness test pneumatic tool, 21 is the bottom plate, 22 is the support rod, 23 is the upper plate, 24 is the upper cylinder, 25 is the horizontal cylinder I, 26 is the adjusting pad block I, 27 is the horizontal cylinder II, 28 is the adjusting pad block II, 29 is the air valve switch, 210 is the horizontal plug II, 211 is the water inlet, 212 is the fixed plug, 213 is the upper plug. DETAILED DESCRIPTION

[0034] The structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0035] Example 1

[0036] Products to be tested such as Figs. 1-3 As shown, it is a cast three-port valve with a bottom opening 11 (fixed installation side) at the bottom, horizontal openings I 12 and II 13 on the left and right sides, and a top opening 14 on the top.

[0037] An air tightness test pneumatic tool 2, comprising a base plate 21;

[0038] A vertically arranged fixed plug 212 is installed on the bottom plate 21, a water injection port 211 is opened on the bottom plate 21, and a water inlet is opened on the fixed plug 212. The water injection port 211 is connected to the water inlet through a connecting groove. The bottom plate 21 is fixedly connected to the upper plate 23 arranged above the bottom plate 21 and parallel to the bottom plate 21 through four support rods 22 (the four support rods 22 are arranged on the four corners of the upper plate 23 and the support rods 22 are fixed vertically to the bottom plate 21). The fixed plug 212 is arranged in the space between the upper plate 23 and the bottom plate 21. Horizontal cylinder I 25 and horizontal cylinder II 27 are installed on both sides of the fixed plug 212, which are horizontally arranged and symmetrically arranged on both sides of the fixed plug 212. The movable part of the horizontal cylinder I 25 is arranged near the side of the fixed plug 212. The horizontal cylinder I 25 is fixed to the bottom plate 21 through an adjusting pad I 26, and the horizontal cylinder II 27 is fixed to the bottom plate 21 through an adjusting pad II 28 is fixed on the base plate 21, and a vertically arranged upper cylinder 24 is fixed on the upper plate 23. The movable part of the upper cylinder 24 is located on the lower side of the upper cylinder 24 and below the upper plate 23. The movable ends of the upper cylinder 24, horizontal cylinder I 25 and horizontal cylinder II 27 are threadedly connected with movable plugs (respectively upper plug 213, horizontal plug I and horizontal plug II 210), and the fixed plug 212, upper plug 213, horizontal plug I and horizontal plug II 210 are all equipped with sealing gaskets. The air supply pipes of the upper cylinder 24, horizontal cylinder I 25 and horizontal cylinder II 27 are connected to the air valve switch 29.

[0039] The operation of using the above-mentioned air tightness test pneumatic tooling to perform air tightness test on the product to be tested is as follows:

[0040] (1) Place the product to be tested on the fixed plug;

[0041] (2) By switching the air valve switch, the gas enters the upper cylinder, horizontal cylinder I, and horizontal cylinder II from the air supply pipe (push-top), pushing the push rod to move the upper plug, horizontal plug I, and horizontal plug II toward the product to be tested, making it sealed;

[0042] (3) Inject water into the fixed plug through the water injection port, adjust the water injection pressure to the required test pressure, and observe whether there is leakage on the outer surface of the product to check whether the product is qualified;

[0043] (4) After observing for a certain period of time as required, turn off the water injection, the water will automatically flow back, switch the air valve switch, and the gas will enter the upper cylinder, horizontal cylinder I, and horizontal cylinder II through the air supply pipe (recovery), push the push rod to make the upper plug, horizontal plug I and horizontal plug II return to their original position, and disassemble the product to be tested.

[0044] In summary, the present application provides a pneumatic tooling for air tightness testing with a reasonable structural design. It can seal the openings of the product to be tested through movable plugs arranged on the top, left and right and a fixed plug at the bottom, and use the water injection port to inject water into the product to be tested to complete the air tightness test. The operation is simple; it has good applicability and can be used for air tightness testing of three-port and four-port valves; compared with manual testing, it has good test consistency, high test efficiency and good reliability, and has great application prospects.

[0045] Those skilled in the art should understand that they can implement variations based on the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essence of the present invention and will not be described in detail here.

[0046] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An air tightness test pneumatic tool, characterized by: It includes a bottom plate; The bottom plate is provided with a fixed plug arranged vertically, a water injection port is formed on the bottom plate, a water inlet port is formed on the fixed plug, the water injection port and the water inlet port are communicated through a communication groove, the bottom plate is fixedly connected with an upper plate arranged above the bottom plate and parallel to the bottom plate through a plurality of supporting rods, the fixed plug is arranged in the space between the upper plate and the bottom plate, horizontal cylinders I and II are arranged on both sides of the fixed plug, the movable part of the horizontal cylinder I is arranged near the fixed plug, the upper plate is fixedly provided with an upper cylinder arranged vertically, the movable part of the upper cylinder is located on the lower side of the upper cylinder and below the upper plate, the movable ends of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II are fixed with movable plugs, and the gas supply pipes of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II are connected with a gas valve switch.

2. A pneumatic tool for testing air tightness according to claim 1, characterized in that, The horizontal cylinder I is fixed on the bottom plate through an adjusting pad I; The horizontal cylinder II is fixed on the bottom plate through an adjusting pad II.

3. The pneumatic tooling for testing air tightness according to claim 1, wherein, The movable ends of the upper cylinder, the horizontal cylinder I and the horizontal cylinder II are connected with the movable plugs through threads.

4. A pneumatic tooling for testing air tightness according to claim 3, characterized in that, The movable end of the upper cylinder is connected with an upper plug; The movable end of the horizontal cylinder I is connected with a horizontal plug I; The movable end of the horizontal cylinder II is connected with a horizontal plug II.

5. A pneumatic tool for testing the air tightness of a container according to claim 4, wherein The fixed plug, the upper plug, the horizontal plug I and the horizontal plug II are all sleeved with sealing washers.

6. The pneumatic tool of claim 1, wherein, The supporting rods are four in total and arranged on the four corners of the upper plate.

7. A pneumatic tool for testing the air tightness of a container according to claim 6, wherein The supporting rods are fixed perpendicularly to the bottom plate.

Images