Vacuum pressure retaining detection device

Abstract

The application provides a vacuum pressure detection device, a detection box, a pressing mechanism and a blowing mechanism; a detection groove with the same shape as the cover plate is arranged on the detection table of the detection box, the pressing mechanism comprises a rack, a lifting driving element and a pressing plate, the pressing plate is arranged at the bottom of the rack and connected with the lifting end of the lifting driving element, the blowing mechanism comprises a vacuum pump, a gas pressure detector and a pressure relief valve, a gas path is arranged on the detection table of the detection box and communicated with the detection groove, the blowing end of the vacuum pump is connected with the gas path through a connecting pipe, and the gas pressure detector and the pressure relief valve are respectively inserted into the gas path on the detection table of the detection box; after the cover plate is pressed on the detection groove, the detection groove can be blown by the vacuum pump, and in the process, the gas pressure detector can be used to detect the gas pressure change in a period of time to determine whether the sealing property of the cover plate is qualified, and the device has high detection precision and high use value.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and specifically discloses a vacuum pressure testing device. Background Technology

[0002] like Figure 1 The cover plate shown is used to seal relevant parts of new energy vehicle batteries. After it is manufactured, it needs to be tested for air tightness to ensure its airtightness. However, there is no dedicated air tightness testing device in the existing technology to test its air tightness. If other air tightness testing devices are used to test its air tightness, air leakage is likely to occur, and the testing accuracy cannot be guaranteed.

[0003] To address this problem, this application discloses a vacuum pressure holding detection device. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model discloses a vacuum pressure holding detection device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a vacuum pressure holding detection device, comprising a detection box, a pressing mechanism, and an air blowing mechanism;

[0006] The testing platform of the testing box has a testing groove that matches the shape of the cover plate, and the inside of the testing groove is provided with a plug for sealing the hole of the cover plate;

[0007] The pressing mechanism includes a frame, a lifting drive component, and a pressure plate. The frame is positioned above the testing table surface of the testing box, corresponding to the testing groove. The lifting drive component is positioned above the frame. The pressure plate is located at the bottom of the frame and connected to the lifting end of the lifting drive component.

[0008] The blowing mechanism includes a vacuum pump, a pressure detector, and a pressure relief valve. The detection platform of the detection box has an air passage that communicates with the detection groove. The vacuum pump is located on the outside of the detection box, and the blowing end of the vacuum pump is connected to the air passage through a connecting pipe. The pressure detector and the pressure relief valve are respectively inserted into the air passage on the detection platform of the detection box.

[0009] A further preferred embodiment is that a contoured sealing gasket is provided above the detection platform of the detection box on the outer ring of the detection groove.

[0010] More preferably, the testing platform of the testing box is provided with a foolproof protrusion.

[0011] More preferably, the testing platform of the testing box is provided with a clearance slot.

[0012] More preferably, the platform has four smooth rod legs, and the pressure plate has four guide holes around its perimeter, through which the four smooth rod legs pass.

[0013] A further preferred embodiment is that the bottom of the pressure plate is provided with a contoured pressure groove.

[0014] More preferably, the lifting drive component is one of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0015] More preferably, the detection platform of the detection box is equipped with an alarm that is connected to the air pressure detector for control.

[0016] This utility model achieves the following beneficial effects:

[0017] After the cover plate is pressed over the detection groove, this application can blow air into the detection groove through a vacuum pump. During this process, the air pressure detector can detect the air pressure change over a period of time to determine whether the cover plate is qualified for sealing. Moreover, the device has high detection accuracy and high application value.

[0018] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the disclosure.

[0020] Figure 1 This is a schematic diagram of the cover plate structure disclosed in this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure disclosed in this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the present utility model.

[0023] Figure 4 A schematic diagram of the contour pressing groove disclosed in this utility model;

[0024] Figure 5 This is a schematic diagram of the pre-placement of the cover plate disclosed in this utility model;

[0025] In the diagram: 10. Detection box; 11. Detection groove; 111. Plug; 12. Anti-foolproof protrusion; 13. Alternating slot; 14. Contouring sealing gasket; 15. Air passage; 20. Pressing mechanism; 21. Stand; 211. Smooth rod support leg; 22. Lifting drive component; 23. Pressure plate; 231. Guide hole; 232. Contouring pressing groove; 30. Air blowing mechanism; 31. Vacuum pump; 32. Pressure relief valve; 33. Air pressure detector; 34. Connecting pipe; 40. Alarm. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Example

[0029] To address the limitation of existing airtightness testing equipment in detecting, for example... Figure 1 For the issue of sealing the cover plate shown, please refer to... Figures 2-5 As shown, this application discloses a vacuum pressure holding detection device, comprising a detection box 10, a pressing mechanism 20, and an air blowing mechanism 30;

[0030] The testing platform of the testing box 10 has a testing groove 11 that matches the shape of the cover plate. The inside of the testing groove 11 is provided with a plug 111 for sealing the hole of the cover plate. The testing platform of the testing box 10 has a clearance slot 13. That is to say, the cover plate to be tested in this application has a small hole. When the cover plate is placed above the testing groove 11, the plug 111 should seal the small hole of the cover plate, and the raised part of the cover plate should be inserted into the clearance slot 13. In this way, when the air tightness test of the cover plate is performed, there will be no air leakage, which effectively ensures the testing accuracy.

[0031] The pressing mechanism 20 includes a frame 21, a lifting drive 22, and a pressure plate 23. The frame 21 is positioned above the detection table surface of the detection box 10 corresponding to the detection groove 11. The lifting drive 22 is positioned above the frame 21. The pressure plate 23 is positioned at the bottom of the frame 21 and connected to the lifting end of the lifting drive 22. After the cover plate is placed above the detection groove 11, the lifting drive 22 drives the pressure plate 23 to descend and press the cover plate to fix it.

[0032] The air blowing mechanism 30 includes a vacuum pump 31, a pressure detector 33, and a pressure relief valve 32. An air passage 15 communicating with the detection groove 11 is provided on the detection platform of the detection box 10. The vacuum pump 31 is located on the outside of the detection box 10, and the blowing end of the vacuum pump 31 is connected to the air passage 15 through a connecting pipe 34. The pressure detector 33 and the pressure relief valve 32 are respectively inserted into the air passage 15 on the detection platform of the detection box 10. After the lifting drive 22 presses the cover plate through the pressure plate 23, the vacuum pump 31 blows air into the detection groove 11 through the connecting pipe 34 and the air passage 15. After the pressure detector 33 detects the set air pressure, the vacuum pump 31 stops blowing air. If the air pressure does not drop within a certain period of time, it means that the airtightness of the cover plate is qualified; otherwise, it is unqualified. Finally, the pressure is released through the pressure relief valve 32, the lifting drive 22 drives the pressure plate 23 to reset, and the operator can then remove the cover plate.

[0033] To ensure the airtightness between the cover plate and the testing platform of the testing box 10, this application also provides a contoured sealing gasket 14 on the outer ring of the testing groove 11 above the testing platform of the testing box 10. When the cover plate is placed above the testing groove 11, the contoured sealing gasket 14 wraps the inner cavity of the cover plate, thereby achieving a seal.

[0034] Based on the characteristics of the cover plate and in order to position the cover plate, this application provides a foolproof protrusion 12 on the detection table of the detection box 10. During the placement of the cover plate, the foolproof protrusion 12 will be inserted into the recess of the cover plate.

[0035] To ensure that the lifting drive 22 can smoothly drive the pressure plate 23 to rise and fall, this application has four smooth rod legs 211 on the frame 21, and four guide holes 231 are opened around the pressure plate 23. The four smooth rod legs 211 pass through the four guide holes 231. During the process of the lifting drive 22 driving the pressure plate 23 to rise and fall, the four smooth rods will slide in the four guide holes 231. In order to facilitate the stable pressing of the cover plate, this application provides a contoured pressing groove 232 at the bottom of the pressure plate 23. When pressing the cover plate, the upper surface of the cover plate will enter the contoured pressing groove 232.

[0036] Alternatively, the lifting drive component 22 can be one of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. Other types of drive methods can drive the pressure plate 23 of this application to move up and down. Those skilled in the art can make appropriate choices accordingly, and will not be elaborated on here.

[0037] In a preferred embodiment, the present application also provides an alarm 40 on the detection table of the detection box 10, which is connected to the air pressure detector 33. If the pressure sensor detects an unqualified air pressure value while in the pressure holding state, it will control the alarm 40 to sound an alarm. At this time, the operator can quickly find out whether the cover plate is qualified. This facilitates the subsequent sorting and unloading, and has high practicality.

[0038] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A vacuum pressure holding detection device, characterized in that, The detection box (10), the pressing mechanism (20), and the air blowing mechanism (30); The detection platform of the detection box (10) is provided with a detection groove (11) that is consistent with the shape of the cover plate, and the inside of the detection groove (11) is provided with a plug (111) for sealing the hole of the cover plate; The pressing mechanism (20) includes a frame (21), a lifting drive (22) and a pressure plate (23). The frame (21) is positioned above the testing table surface of the testing box (10) corresponding to the testing groove (11). The lifting drive (22) is positioned above the frame (21). The pressure plate (23) is located at the bottom of the frame (21) and connected to the lifting end of the lifting drive (22). The blowing mechanism (30) includes a vacuum pump (31), a pressure detector (33), and a pressure relief valve (32). The detection platform of the detection box (10) is provided with an air passage (15) that communicates with the detection groove (11). The vacuum pump (31) is located on the outside of the detection box (10), and the blowing end of the vacuum pump (31) is connected to the air passage (15) through a connecting pipe (34). The pressure detector (33) and the pressure relief valve (32) are respectively inserted into the air passage (15) on the detection platform of the detection box (10).

2. The vacuum pressure holding detection device according to claim 1, characterized in that, The detection box (10) has a contoured sealing gasket (14) above the detection table surface on the outer ring of the detection groove (11).

3. The vacuum pressure holding detection device according to claim 1, characterized in that, The testing platform of the testing box (10) is provided with a foolproof protrusion (12).

4. The vacuum pressure holding detection device according to claim 1, characterized in that, The detection platform of the detection box (10) is provided with a clearance slot (13).

5. The vacuum pressure holding detection device according to claim 1, characterized in that, The platform (21) has four bare rod legs (211), and the pressure plate (23) has four guide holes (231) around its perimeter, through which the four bare rod legs (211) pass.

6. The vacuum pressure holding detection device according to claim 1, characterized in that, The bottom of the pressure plate (23) is provided with a contoured pressure groove (232).

7. The vacuum pressure holding detection device according to claim 1, characterized in that, The lifting drive component (22) is one of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

8. The vacuum pressure holding detection device according to claim 1, characterized in that, The detection platform of the detection box (10) is equipped with an alarm (40) that is connected to the air pressure detector (33) for control.

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