Air tightness testing device

Abstract

The utility model belongs to the technical field of air tightness detection, and particularly relates to an air tightness testing device which comprises a support, the support comprises a top plate, a bottom plate and connecting columns, the top plate and the bottom plate are oppositely arranged at intervals, the connecting columns are connected with the top plate and the bottom plate, and first sliding grooves are formed in the periphery of the bottom plate; the first sliding air cylinder devices comprise first sliding supports and first air cylinders, the first sliding supports are assembled in the first sliding grooves in a sliding mode, the first air cylinders are installed on the first sliding supports and can be adjusted on the first sliding supports in a lifting mode, and the air outlet ends of the first air cylinders face the interior of the bottom plate. According to the air tightness detection device, the position of the first air cylinder can be flexibly adjusted up, down, left and right, so that the air outlet ends of the air cylinders can be correspondingly plugged into the corresponding holes through adjustment even if the positions of the holes in the part are different, and the air tightness detection device is wider in adaptability, good in flexibility and capable of being widely used.

Description

Technical Field

[0001] The present application belongs to the technical field of air tightness detection, and in particular, relates to an air tightness testing device. Background Art

[0002] Shell parts often require a certain degree of sealing of the internal cavity to prevent foreign matter from entering and internal oil leakage. During the inspection process, it is necessary to seal the holes on the parts with a cylinder. The existing test device can usually only adapt to one type of part. For parts with different hole positions, special test devices are often required for inspection. This results in poor universality of traditional airtightness test devices and cannot be widely used. Utility Model Content

[0003] The embodiment of the present application provides an air tightness testing device, which has wider adaptability, good flexibility, and can be widely used.

[0004] An airtightness testing device, comprising:

[0005] A bracket, the bracket comprising a top plate, a bottom plate and a connecting column, the top plate and the bottom plate are arranged relatively spaced apart, the connecting column connects the top plate and the bottom plate, and a first sliding groove is arranged around the bottom plate;

[0006] The first sliding cylinder device is provided with a plurality of them, and the sliding cylinder device includes a first sliding bracket and a first cylinder, the first sliding bracket is slidably assembled in the first sliding groove, the first cylinder is installed on the first sliding bracket and can be raised and lowered on the first sliding bracket, and the air outlet end of the first cylinder faces the inside of the base plate.

[0007] According to some other embodiments of the air tightness testing device of the utility model, a second slide groove is provided on the top plate, a plurality of second sliding cylinder devices are connected to the second slide groove, the second sliding cylinder device includes a second sliding bracket and a second cylinder, the second sliding bracket is slidably assembled in the second slide groove, the second cylinder is installed on the second sliding bracket, and the air outlet end of the second cylinder faces downward.

[0008] According to the air tightness testing device of some other embodiments of the utility model, a first adjustment hole is provided on the first sliding bracket, and the first cylinder is slidably assembled in the first adjustment hole and locked by a fastening bolt.

[0009] According to the air tightness testing device of some other embodiments of the present invention, the first slide groove is provided with multiple layers along the plane direction of the bottom plate.

[0010] According to the air tightness testing device of some other embodiments of the present invention, the first slide grooves are distributed in a rectangular shape on the bottom plate.

[0011] According to the air tightness testing device of some other embodiments of the present invention, the first slide groove forms an opening on the side of the bottom plate.

[0012] According to the air tightness testing device of some other embodiments of the present invention, the second slide groove is opened in the middle of the top plate.

[0013] According to some other embodiments of the air tightness testing device of the utility model, an assembly step is provided in the second slide groove, the second sliding bracket includes a connecting plate and step claws connected on both sides of the connecting plate, the second sliding bracket is engaged on the assembly step through the step claws, and the second cylinder is installed on the connecting plate.

[0014] According to the air tightness testing device of some other embodiments of the utility model, an annular groove is provided on the bottom plate, and the parts are used to fit in the annular groove.

[0015] The air tightness testing device of the utility model embodiment has at least the following beneficial effects: during use, the parts are placed on the bottom plate, each first sliding cylinder device is adjusted horizontally in the first slide groove, and then the first cylinder is adjusted vertically on the first sliding bracket, so that the air outlet end of each first cylinder can be correspondingly sealed to the corresponding hole of the part, and then compressed air is introduced into the first cylinder to allow the gas to rush into the interior of the part for air tightness testing. Since the position of the first cylinder of this air tightness testing device can be flexibly adjusted up and down and left and right, even if the position of the hole on the part is different, the air outlet end of the cylinder can be correspondingly sealed to the corresponding hole through adjustment. This air tightness testing device has wider adaptability and good flexibility and can be widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an airtightness testing device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0018] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0019] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0021] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] Shell parts often require a certain degree of sealing of the internal cavity to prevent foreign matter from entering and internal oil leakage. During the inspection process, it is necessary to seal the holes on the parts with a cylinder. The existing test device can usually only adapt to one type of part. For parts with different hole positions, special test devices are often required for inspection. This results in poor universality of traditional airtightness test devices and cannot be widely used.

[0023] See also Figure 1The present application provides an air tightness testing device, including a bracket and a first sliding cylinder device 2, the bracket includes a top plate 10, a bottom plate 11 and a connecting column 12, the top plate 10 and the bottom plate 11 are arranged relatively spaced apart, the connecting column 12 connects the top plate 10 and the bottom plate 11, a first slide groove 11a is provided around the bottom plate 11, and the first sliding cylinder device 2 is provided with multiple, the first sliding cylinder device 2 includes a first sliding bracket 20 and a first cylinder 21, the first sliding bracket 20 is slidably assembled in the first slide groove 11a, the first cylinder 21 is installed on the first sliding bracket 20 and can be raised and lowered on the first sliding bracket 20, and the air outlet end of the first cylinder 21 faces the inside of the bottom plate 11.

[0024] During use, the parts are placed on the base plate 11, and each first sliding cylinder device 2 is horizontally adjusted in the first slide groove 11a, and then the first cylinder 21 is vertically adjusted on the first sliding bracket 20, so that the air outlet end of each first cylinder 21 can be sealed to the corresponding hole of the part, and then compressed air is introduced into the first cylinder 21 to allow the gas to rush into the inside of the part for air tightness detection. Since the position of the first cylinder 21 of this air tightness detection device can be flexibly adjusted up and down, left and right, even if the position of the hole on the part is different, the air outlet end of the cylinder can be sealed to the corresponding hole by adjustment. This air tightness detection device has wider adaptability and good flexibility, and can be widely used.

[0025] In some embodiments, the top plate 10 and the bottom plate 11 are both square plate structures, and four connecting columns 12 are provided. The four connecting columns 12 are respectively connected at four corners of the top plate 10 and the bottom plate 11 .

[0026] In some embodiments, the first sliding grooves 11 a are distributed in a rectangular shape on the bottom plate 11 .

[0027] Among them, four first sliding cylinder devices 2 are respectively installed in the first sliding grooves 11a on the front and rear long sides of the top plate 10, and one first sliding cylinder device 2 is respectively installed in the first sliding grooves 11a on the left and right short sides of the top plate 10.

[0028] Of course, the first slide groove 11a can also be set as an annular slide groove opened on the bottom plate 11, and multiple first sliding cylinder devices 2 are assembled in the first slide groove 11a. The relative position of the first sliding cylinder device 2 is adjusted by sliding the first sliding cylinder device 2 in the first slide groove 11a of the annular structure.

[0029] In order to adapt to parts with holes on the top, in some embodiments, a second slide groove 10a is provided on the top plate 10, and a plurality of second sliding cylinder devices 3 are connected to the second slide groove 10a. The second sliding cylinder device 3 includes a second sliding bracket 30 and a second cylinder 31. The second sliding bracket 30 is slidably assembled in the second slide groove 10a, and the second cylinder 31 is installed on the second sliding bracket 30, and the air outlet end of the second cylinder 31 faces downward.

[0030] Specifically, in some embodiments, the second slide groove 10a is a strip groove extending along the length direction of the top plate 10, and the second sliding bracket 30 slides in the second slide groove 10a to adjust the position of the second cylinder 31 so that the air outlet end of the second cylinder 31 corresponds to the hole on the top of the part.

[0031] In some embodiments, the second slide groove 10 a is opened in the middle of the top plate 10 .

[0032] Of course, the second slide groove 10a can also be set as an annular groove, and the position of the second cylinder 31 can be adjusted by sliding the second sliding bracket 30 in the second slide groove 10a of the annular structure, so that the air outlet end of the second cylinder 31 corresponds to the hole on the top of the part.

[0033] In some embodiments, a first adjustment hole 200 is provided on the first sliding bracket 20, and the first cylinder 21 is slidably assembled in the first adjustment hole 200 and is locked by a fastening bolt.

[0034] Specifically, the first adjustment hole 200 is vertically opened on the first sliding bracket 20, the first cylinder 21 is slidably assembled in the first adjustment hole 200, and then locked in the first adjustment hole by the fastening bolt. When the height of the first cylinder 21 needs to be adjusted, the fastening bolt is loosened, and then the first cylinder 21 is adjusted up and down within the travel range of the first adjustment hole 200. When it is adjusted to the right position, the fastening bolt is tightened.

[0035] In order to adjust the relative distance between the first cylinder 21 and the part, in some embodiments, the first slide groove 11 a is provided with multiple layers along the plane direction of the bottom plate 11 .

[0036] As shown in the embodiment of the present application, two layers of first slide grooves 11a are provided along the planar direction of the base plate 11. When the air outlet end of the first cylinder 21 is required to be closer to the part, the first sliding bracket 20 can be assembled into the first slide groove 11a closer to the part.

[0037] Of course, the number of layers of the first chute 11a can be adjusted according to actual usage requirements, for example, 3 layers, 4 layers, etc.

[0038] In order to facilitate the removal or assembly of the first sliding bracket 20 from the first sliding groove 11 a , in some embodiments, the first sliding groove 11 a forms an opening 110 a on the side of the bottom plate 11 .

[0039] When the first sliding cylinder device 2 needs to be installed, the first sliding bracket 20 is directly assembled into the first sliding groove 11 a from the opening 110 a .

[0040] In some embodiments, an assembly step 100a is provided in the second slide groove 10a, and the second sliding bracket 30 includes a connecting plate 300 and a step claw 301 connected on both sides of the connecting plate 300. The second sliding bracket 30 is engaged with the assembly step 100a through the step claw 301, and the second cylinder 31 is installed on the connecting plate 300.

[0041] Specifically, in the present application, the second chute 10a extends along the length direction of the top plate 10 and the second chute 10a passes through the top plate 10, an assembly step 100a is provided on the inner groove wall of the second chute 10a, the step claw 301 on the second sliding bracket 30 is matched on the assembly step 100a, and one end of the second cylinder 31 is connected to the connecting plate 300 and extends downward. During the installation process, the second sliding bracket 30 is assembled to the assembly step 100a in the second chute 10a after the tail end of the second cylinder 31 is fixed to the connecting plate 300 on the second sliding bracket 30, which is equivalent to the second cylinder 31 being directly suspended in the second chute 10a through the second sliding bracket 30. When the second cylinder 31 needs to be taken out, the second sliding bracket 30 is directly taken out from the second chute 10a.

[0042] In order to facilitate the matching of parts with an annular base, in some embodiments, an annular groove is provided on the bottom plate 11, and the parts are used to match in the annular groove.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Claims

1. An airtightness testing device, characterized in that: include: A bracket, the bracket comprising a top plate, a bottom plate and a connecting column, the top plate and the bottom plate are arranged relatively spaced apart, the connecting column connects the top plate and the bottom plate, and a first sliding groove is arranged around the bottom plate; The first sliding cylinder device is provided with a plurality of them, and the sliding cylinder device includes a first sliding bracket and a first cylinder, the first sliding bracket is slidably assembled in the first sliding groove, the first cylinder is installed on the first sliding bracket and can be raised and lowered on the first sliding bracket, and the air outlet end of the first cylinder faces the inside of the base plate.

2. The airtightness testing device according to claim 1, characterized in that: A second slide groove is provided on the top plate, and a plurality of second sliding cylinder devices are connected to the second slide groove. The second sliding cylinder device includes a second sliding bracket and a second cylinder. The second sliding bracket is slidably assembled in the second slide groove, and the second cylinder is installed on the second sliding bracket, and the air outlet end of the second cylinder faces downward.

3. The airtightness testing device according to claim 1, characterized in that: The first sliding bracket is provided with a first adjusting hole, and the first cylinder is slidably assembled in the first adjusting hole and is locked by a fastening bolt.

4. The airtightness testing device according to claim 1, characterized in that: The first slide groove is provided with multiple layers along the plane direction of the bottom plate.

5. The airtightness testing device according to claim 4, characterized in that: The first sliding grooves are distributed on the bottom plate in a rectangular shape.

6. The airtightness testing device according to claim 5, characterized in that: The first slide groove forms an opening at a side of the bottom plate.

7. The airtightness testing device according to claim 2, characterized in that: The second slide groove is opened in the middle of the top plate.

8. The airtightness testing device according to claim 7, characterized in that: An assembly step is provided in the second slide groove, the second sliding bracket includes a connecting plate and step claws connected to both sides of the connecting plate, the second sliding bracket is engaged on the assembly step through the step claws, and the second cylinder is mounted on the connecting plate.

9. The airtightness testing device according to claim 1, characterized in that: The bottom plate is provided with an annular groove, and the parts are used to fit in the annular groove.

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