CN218916699U - Valve gas tightness detection device - Google Patents
Valve gas tightness detection device Download PDFInfo
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- CN218916699U CN218916699U CN202223176662.3U CN202223176662U CN218916699U CN 218916699 U CN218916699 U CN 218916699U CN 202223176662 U CN202223176662 U CN 202223176662U CN 218916699 U CN218916699 U CN 218916699U
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Abstract
The utility model discloses a valve air tightness detection device, which comprises a clamping fixture and a gas collecting bottle; the mould is provided with an upper seat and a lower seat which are spliced together, a detection cavity for detecting the air tightness of the valve component is formed in the upper seat and the lower seat together, and the detection cavity is communicated with an air inlet and an air outlet; the gas inlet is filled with detection gas, and the gas outlet is communicated with the gas collecting bottle through a gas pipe fitting. The novel operation is simple and visual, and the detection result is displayed visually by collecting the mode that the gas generates bubbles in the water; moreover, high investment of automatic detection equipment is not needed, the detection cost can be reduced while the valve is simple, efficient and practical, and the interference problem of electronic devices is solved, so that the air tightness of the valve part can be accurately judged.
Description
Technical Field
The utility model relates to a detection device, in particular to a valve air tightness detection device.
Background
For the fuel injection system of the automobile engine, valve components such as an oil inlet valve, an oil outlet valve and the like are oil delivery devices, so that the on-off function is realized; in order to meet the opening and closing requirements, the sealing performance of the valve component must meet the standard requirements, so that the tightness of the valve component must be strictly tested in the process of manufacturing the valve component. At present, most of devices for detecting the air tightness of valve parts are automatic detection devices, and detection data or alarm display is read through electronic elements; however, the automatic detection equipment has higher input cost and complex equipment structure, is easy to generate equipment faults based on the sensitivity and stability problems of the automatic detection electronic devices, can generate micro air leakage or delay phenomena, is easy to judge bad parts as qualified products, leads to inaccurate test results, and further can influence the quality and stability of the whole fuel system.
Disclosure of Invention
In order to solve the defects of the technology, the utility model provides a valve air tightness detection device.
In order to solve the technical problems, the utility model adopts the following technical scheme: a valve air tightness detection device comprises a clamping fixture and a gas collecting bottle;
the mould is provided with an upper seat and a lower seat which are spliced together, a detection cavity for detecting the air tightness of the valve component is formed in the upper seat and the lower seat together, and the detection cavity is communicated with an air inlet and an air outlet; the gas inlet is filled with detection gas, and the gas outlet is communicated with the gas collecting bottle through a gas pipe fitting.
Further, the valve air tightness detection device also comprises a middle template and a lower template which are distributed up and down;
the upper seat is arranged below the middle template and moves up and down along with the middle template, and the lower seat is arranged on the lower template; a mandrel is longitudinally arranged in the upper seat, and a spring is arranged between the mandrel and the middle template; the spindle is used for acting on the valve component to be tested in the detection cavity.
Further, a guide hole is formed in the upper seat, the spring and the mandrel are both arranged in the guide hole, and a step structure of a limiting mandrel is further formed at the guide hole.
Further, an upper seat sealing ring is arranged in the detection cavity of the upper seat, a lower seat sealing ring is arranged in the detection cavity of the lower seat, and a middle sealing ring is arranged at the joint of the upper seat and the lower seat.
Further, a cushion sleeve for supporting the lower seat sealing ring is arranged in the detection cavity of the lower seat; the top of the detection cavity of the upper seat is provided with a circle of sealing cone groove for limiting the sealing ring of the upper seat.
Further, an upper seat positioning table is formed at the top of the upper seat, a lower seat positioning table is formed at the bottom of the lower seat, the upper seat positioning table is embedded into a notch corresponding to the middle die plate and then is connected with the middle die plate through screw locking, and the lower seat positioning table is embedded into a notch corresponding to the lower die plate and then is connected with the lower die plate through screw locking.
Further, a top sealing ring is arranged at the joint of the upper seat and the middle die plate, and a circle of sealing cone groove for limiting the top sealing ring is formed at the top of the upper seat.
Further, the middle die is connected with a cylinder through a flange plate.
Further, guide rods are symmetrically arranged on the lower die plate, matched linear bearings are arranged on the guide rods, the middle die plate is arranged on the linear bearings, an upper die plate is fixedly locked at the top of the guide rods through nuts, and the air cylinder is arranged on the upper die plate.
Further, the front side of the upper template is fixed with a bracket, and the gas collection bottle is arranged on the bracket through the bracket.
The utility model discloses a valve air tightness detection device which is simple and visual to operate, and can intuitively display a detection result by collecting air bubbles generated in water, so that the leaked air can be collected and extracted and the air bubbles can be observed to be generated as long as poor tightness occurs; moreover, high investment of automatic detection equipment is not needed, detection cost can be reduced while the automatic detection equipment is simple, efficient and practical, and the interference problem of electronic devices is solved, so that the air tightness of the valve component can be accurately judged, the misjudgment of a product with poor tightness as a qualified product is avoided, and the product quality is effectively ensured.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a side view of fig. 1.
FIG. 3 is a schematic view of the spring arrangement of the present utility model.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.
FIG. 5 is a schematic view of the internal structure of the mold according to the present utility model.
FIG. 6 is a schematic view of the upper seat structure of the mold of the present utility model.
In the figure: 1. a lower template; 2. a middle template; 3. an upper template; 4. a bracket; 5. a gas collecting bottle; 6. a tray; 7. a guide post; 8. a linear bearing; 9. a flange plate; 10. a cylinder; 11. a gas pipe fitting; 12. a nut; 13. a mould; 13a, upper seat; 13b, lower seat; 14. a guide hole; 14a, a step structure; 15. a spring; 16. a mandrel; 17. a valve member; 18. a top seal ring; 19. an upper seat sealing ring; 20. a middle sealing ring; 21. a lower seat sealing ring; 22. a cushion cover; 23. sealing the cone groove; 24. an air inlet; 25. an air outlet; 26. an upper seat positioning table; 27. and a lower seat positioning table.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
A valve air tightness detection device is shown in figure 1, and comprises a clamping fixture 13 and a gas collecting bottle 5; the mould 13 provides a site for the air tightness detection of the valve member; the gas collecting bottle 5 is filled with liquid water in advance, and if the valve component has a gas leakage phenomenon, the gas collected by the gas collecting bottle 5 can generate bubbles in the water, so that the detection result of the valve component is visually displayed.
As shown in fig. 1, the valve air tightness detection device disclosed by the utility model comprises a middle template 2 and a lower template 1 which are distributed up and down; the lower template 1 is positioned at the bottom of the whole device and is kept motionless, guide rods 7 are symmetrically arranged on the lower template 1, sliding linear bearings 8 are arranged on the guide rods 7, the linear bearings 8 are connected with the middle template 2, meanwhile, the middle template 2 is connected with an air cylinder 10 through a flange plate 9, and the flange plate 9 is fixed on the middle template 2 through screws and is connected with an output shaft of the air cylinder 10. Therefore, the middle template 2 is pulled by the air cylinder 10, so that the middle template 2 drives the linear bearing to slide up and down along the guide rod, and the straightness and lubricity of the action of the middle template 2 are ensured by the matched arrangement of the linear bearing 8 and the guide rod 7.
For the cylinder 10, it is installed on the upper die plate 3, and the upper die plate 3 is propped up by the top end of the guide rod 7, and the upper die plate 3 is locked and fixed on the guide rod 7 through the nut 12. The upper template 3 also provides a place for placing the gas collection bottle 5, and as shown in fig. 2, the front side of the upper template 3 is fixed with a bracket 4, and the gas collection bottle 5 is arranged on the bracket 4 through a tray 6. In order to improve the detection efficiency, a plurality of gas cylinders 5 can be arranged, and one gas cylinder is correspondingly provided with one detection mould 13.
As shown in fig. 1, the mold 13 is distributed between the lower die plate 1 and the middle die plate 2; as shown in fig. 5, the mold 13 is provided with an upper seat 13a and a lower seat 13b which are spliced together, and a detection cavity for detecting the airtight of the valve component is formed in the upper seat 13a and the lower seat 13b together; meanwhile, the detection cavity is communicated with an air inlet 24 and an air outlet 25.
Wherein, the upper seat 13a is correspondingly installed below the middle die plate 2 and moves up and down along with the middle die plate 2, and the lower seat 13b is installed on the lower die plate 1. As shown in fig. 3-6, a mandrel 16 is longitudinally arranged in the upper seat 13a, and a spring 15 is arranged between the mandrel 16 and the middle template 2; the mandrel 16 can move up and down, and the spring 15 is limited between the mandrel 16 and the middle template 2; during detection, the core shaft 16 acts on the valve core of the valve component to be detected in the detection cavity, and the spring 15 compresses the valve core.
Thus, after the valve component 17 to be detected is placed in the detection cavity of the lower seat 13b, the cylinder 10 pushes the upper seat 13a to move downwards, the mandrel 16 props against the valve core of the valve component 17 to enable the spring 15 to be extruded, and the mandrel 16 can tightly press the valve core under the action of the spring 15 and the pushing down of the cylinder 10; an air inlet 24 arranged at the lower seat 13b is externally connected with an air inlet pipe fitting, and an air outlet 25 of the upper seat 13a is communicated with the gas collecting bottle 5 through the air pipe fitting 11. The detection gas is introduced from the gas inlet 24 for testing, good tightness is kept around the detection cavity, if the valve component has gas leakage, the detection gas flows out from the gas outlet 25 through the valve component, the gas outlet 25 is communicated with the gas collecting bottle 5 through the gas pipe 11, and gas collected by the gas collecting bottle 5 generates bubbles in water, so that the valve component has poor tightness.
Preferably, as shown in fig. 6, a guide hole 14 is formed in the upper seat 13a, and a spring 15 and a mandrel 16 are both arranged in the guide hole 14, so that the valve component is guided to be in position through the guide hole 14, and the test error caused by extrusion offset of the mandrel on the valve component is prevented. And, the guide hole 14 is also formed with a step structure 14a for limiting the mandrel 16, so as to avoid the mandrel 16 from falling off the guide hole 14 completely.
Preferably, in order to maintain good tightness around the detection cavity, as shown in fig. 5, an upper seat sealing ring 19 is provided in the detection cavity of the upper seat 13a, a lower seat sealing ring 21 is provided in the detection cavity of the lower seat 13b, and a middle sealing ring 20 is provided at the joint of the upper seat 13a and the lower seat 13 b. The upper sealing ring, the middle sealing ring and the lower sealing ring are arranged, so that a sealing space is formed in a detection cavity where the valve component is located, the test gas is prevented from leaking from the outside of the valve component, and the detection accuracy is improved.
As shown in fig. 6, a circle of sealing cone groove 23 for limiting the upper seat sealing ring 19 is formed at the top of the detection cavity of the upper seat 13a, so as to realize effective installation and fixation of the upper seat sealing ring 19. As shown in fig. 5, a cushion 22 for supporting the lower seat seal 21 is provided in the detection chamber of the lower seat 13b
Preferably, the air inlet 24 and the air outlet 25 are both in the form of conical wire holes, and are respectively connected with the air pipes through corresponding connectors. The effective sealing at the air inlet and the air outlet is realized in a taper wire hole mode.
In addition, in order to align the upper seat 13a and the lower seat 13b of the mold vertically and facilitate the positioning and installation on the mold, as shown in fig. 5 and 6, an upper seat positioning table 26 is formed at the top of the upper seat 13a, a lower seat positioning table 27 is formed at the bottom of the lower seat 13b, the upper seat positioning table 26 is inserted into a notch corresponding to the middle mold 2 and then is locked and connected with the middle mold 2 by a screw, and the lower seat positioning table 27 is inserted into a notch corresponding to the lower mold 1 and then is locked and connected with the lower mold 1 by a screw by the lower seat 13 b.
And, a top seal 18 is provided at the junction of the upper seat 13a and the middle die plate 2 to prevent leakage of the gas gap. A circle of sealing cone groove 23 for limiting the top sealing ring 18 is formed at the top of the upper seat 13a so as to realize effective installation and fixation of the top sealing ring 18.
Therefore, in the valve air tightness detection device disclosed by the utility model, the lower template 1 and the upper template 3 are connected and positioned and fixed with each other through the two ends of the guide rod 7, the middle template 2 is slidably arranged between the lower template 1 and the upper template 3 through the linear bearing 8, the cylinder 10 supplies power for the movement of the middle template 2, and the upper seat 13a of the clamping fixture 13 acts along with the middle template 2. When the air tightness of the valve member 17 is detected, the valve member 17 is placed on the lower seat sealing ring of the lower seat 13b, and the upper seat 13a is pushed by the air cylinder 10 to descend and tightly adhere to the lower seat 13 b; the mandrel 16 in the upper seat 13a is pressed against the valve core of the valve component 17 to enable the spring 15 to be pressed, and the mandrel 16 is driven by the spring 15 to press the valve core of the valve component. At this time, the test was performed by ventilation through the air inlet 24, and if no air bubble is generated in the water in the gas collection bottle 5, it is indicated that the sealing property of the valve member is good and no leakage occurs; if the water in the gas collection bottle continuously generates bubbles, the poor sealing performance of the valve member is indicated to have leakage. After the test is completed, the cylinder 10 returns to drive the upper seat 13a to rise and open, and the valve component is taken out.
The above embodiments are not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be limited to the following claims.
Claims (10)
1. A valve class gas tightness detection device, its characterized in that: it comprises a mould (13) and a gas collecting bottle (5);
the clamping fixture (13) is provided with an upper seat (13 a) and a lower seat (13 b) which are spliced, a detection cavity for detecting the air tightness of the valve component is formed in the upper seat (13 a) and the lower seat (13 b) together, and the detection cavity is communicated with an air inlet (24) and an air outlet (25); the gas inlet (24) is filled with detection gas, and the gas outlet (25) is communicated with the gas collecting bottle (5) through the gas pipe fitting (11).
2. The valve-type air tightness detection device according to claim 1, wherein: the valve air tightness detection device also comprises a middle die plate (2) and a lower die plate (1) which are distributed up and down;
the upper seat (13 a) is arranged below the middle template (2) and moves up and down along with the middle template (2), and the lower seat (13 b) is arranged on the lower template (1); a mandrel (16) is longitudinally arranged in the upper seat (13 a), and a spring (15) is arranged between the mandrel (16) and the middle template (2); the spindle (16) acts on the valve component to be tested in the detection cavity.
3. The valve-type air tightness detection device according to claim 2, wherein: the upper seat (13 a) is internally provided with a guide hole (14), the spring (15) and the mandrel (16) are both arranged in the guide hole (14), and the guide hole (14) is also provided with a step structure (14 a) for limiting the mandrel (16).
4. The valve-type air tightness detection device according to claim 2, wherein: an upper seat sealing ring (19) is arranged in the detection cavity of the upper seat (13 a), a lower seat sealing ring (21) is arranged in the detection cavity of the lower seat (13 b), and a middle sealing ring (20) is arranged at the joint of the upper seat (13 a) and the lower seat (13 b).
5. The valve-type air tightness detection device according to claim 4, wherein: a cushion sleeve (22) for supporting the lower seat sealing ring (21) is also arranged in the detection cavity of the lower seat (13 b); a circle of sealing cone groove (23) for limiting the upper seat sealing ring (19) is formed in the top of the detection cavity of the upper seat (13 a).
6. The valve-type air tightness detection device according to claim 2, wherein: the top of the upper seat (13 a) is provided with an upper seat positioning table (26), the bottom of the upper seat (13 a) is provided with a lower seat positioning table (27), the upper seat positioning table (26) is embedded into a notch corresponding to the middle die plate (2) and then is connected with the middle die plate (2) through screw locking, and the lower seat positioning table (27) is embedded into a notch corresponding to the lower die plate (1) and then is connected with the lower die plate (1) through screw locking by the lower seat (13 b).
7. The valve-type air tightness detection device according to claim 6, wherein: a top sealing ring (18) is arranged at the joint of the upper seat (13 a) and the middle die (2), and a circle of sealing cone groove (23) for limiting the top sealing ring (18) is arranged at the top of the upper seat (13 a).
8. The valve-type air tightness detection device according to claim 2, wherein: the middle die plate (2) is connected with an air cylinder (10) through a flange plate (9).
9. The valve-type air tightness detection device according to claim 8, wherein: guide rods (7) are symmetrically arranged on the lower die plate (1), matched linear bearings (8) are arranged on the guide rods (7), the middle die plate (2) is arranged on the linear bearings (8), the upper die plate (3) is fixedly locked on the top of the guide rods (7) through nuts (12), and the air cylinders (10) are arranged on the upper die plate (3).
10. The valve-type air tightness detection device according to claim 9, wherein: the front side of the upper template (3) is fixed with a bracket (4), and the gas collection bottle (5) is arranged on the bracket (4) through a tray (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223176662.3U CN218916699U (en) | 2022-11-29 | 2022-11-29 | Valve gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223176662.3U CN218916699U (en) | 2022-11-29 | 2022-11-29 | Valve gas tightness detection device |
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| Publication Number | Publication Date |
|---|---|
| CN218916699U true CN218916699U (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223176662.3U Active CN218916699U (en) | 2022-11-29 | 2022-11-29 | Valve gas tightness detection device |
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| CN (1) | CN218916699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116581682A (en) * | 2023-07-11 | 2023-08-11 | 江苏安靠智能输电工程科技股份有限公司 | Gas-insulated neutral point grounding device |
-
2022
- 2022-11-29 CN CN202223176662.3U patent/CN218916699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116581682A (en) * | 2023-07-11 | 2023-08-11 | 江苏安靠智能输电工程科技股份有限公司 | Gas-insulated neutral point grounding device |
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