Airtightness detection device for a robot cleaner component

Abstract

The application discloses a kind of airtightness detection device for sweeper component, it includes frame, obturator and support block, support block is set on the top surface of frame, and the top surface of support block is provided with placing groove, one end of placing groove is flush with the side of support block, and the inner bottom wall of placing groove is vertically provided with insertion slot, and the support block is vertically provided with the air extraction hole that is communicated with insertion slot, and the support block is connected with the air extraction pipe that is communicated with air extraction hole, and the frame is vertically provided with obturation pressing plate, and the obturation pressing plate is set on the side of support block and is provided with placing groove, and obturator is set between obturation pressing plate and support block, and obturator includes vertically arranged rubber obturation plate, and the height of rubber obturation plate is greater than the height of support block.The application has the effect of realizing the rapid and accurate airtightness detection of sweeper workpiece.

Description

Technical Field

[0001] This application relates to the technical field of sweeper workpiece inspection, and in particular to an airtightness testing device for sweeper components. Background Technology

[0002] Reference Figure 1 A sweeper workpiece includes a vertically connected suction pipe 01 and a transmission pipe 02. To ensure the production quality of the sweeper, the airtightness of the sweeper workpiece needs to be tested. Generally, a specially shaped sealing component needs to be designed to seal the openings of the workpiece's suction pipe 01 and transmission pipe 02 before the airtightness of the workpiece is tested.

[0003] Regarding the aforementioned technologies, the inventors believe that during the airtightness testing of the sweeper workpieces, on the one hand, the sealing effect of the sealing components is insufficient, which can easily affect the accuracy of the airtightness test; on the other hand, different specifications of sealing components need to be designed for different workpieces, which increases the testing cost of the workpieces. Utility Model Content

[0004] In order to achieve rapid and accurate airtightness testing of sweeper components, this application provides an airtightness testing device for sweeper parts.

[0005] The airtightness testing device for sweeper components provided in this application adopts the following technical solution: An airtightness testing device for a sweeper component includes a frame, a sealing element, and a support block. The support block is disposed on the top surface of the frame, and a placement groove is provided on the top surface of the support block. One end of the placement groove is flush with one side of the support block. A vertical insertion groove is provided on the inner bottom wall of the placement groove. An air extraction hole communicating with the insertion groove is vertically provided on the support block. An air extraction pipe communicating with the air extraction hole is connected to the support block. A sealing pressure plate is vertically disposed on the frame, and the sealing pressure plate is disposed on the side of the support block where the placement groove is located. A first driving member is provided on the frame for driving the sealing pressure plate closer to or away from the support block. The sealing element is disposed between the sealing pressure plate and the support block, and the sealing element includes a vertically disposed rubber sealing plate, the height of which is greater than the height of the support block.

[0006] By adopting the above technical solution, during testing, the workpiece's transmission pipe is first inserted into the insertion slot, the workpiece's suction pipe is placed in the placement slot, and the rubber sealing plate is placed between the support block and the sealing pressure plate. Driven by the first driving component, the sealing pressure plate presses against the open end of the suction pipe, thus sealing the suction port. A vacuum is then created inside the workpiece through the extraction pipe, and the airtightness of the product is determined using the pressure difference method or vacuum degree detection. Through the cooperation of the frame, sealing components, and support block, the system achieves rapid and accurate airtightness testing of the sweeper's workpieces.

[0007] Optionally, a pressing plate is horizontally arranged above the frame, the pressing plate corresponds to the position of the supporting block in the vertical direction, and a second driving member is provided on the frame for driving the pressing plate to move in the vertical direction.

[0008] By adopting the above technical solution, during the test, the pressing plate descends under the action of the second driving component, and the pressing plate presses the workpiece, so that the end of the transmission pipe abuts against the inner bottom wall of the insertion groove, which improves the sealing between the two and helps to improve the accuracy of the device's test.

[0009] Optionally, the sealing component further includes a rubber top plate, which is horizontally and vertically disposed on the side of the rubber sealing plate near the support block, and the rubber top plate is disposed between the support block and the pressing plate.

[0010] By adopting the above technical solution, the rubber top plate is pressed onto the top surface of the suction pipe during testing, reducing the possibility of the pressing plate damaging the suction pipe during the testing process.

[0011] Optionally, the cross-section of the air extraction hole is smaller than the cross-section of the insertion groove, and a sealing gasket is connected to the inner bottom wall of the insertion groove.

[0012] By adopting the above technical solution, the sealing gasket fills the gap between the end of the transmission pipe and the inner bottom wall of the insertion groove, which helps to improve the accuracy of the airtightness test of the device.

[0013] Optionally, a plurality of alignment posts are vertically arranged on the bottom surface of the rubber top plate, and a plurality of alignment holes are vertically arranged on the top surface of the support block. The plurality of alignment posts and the plurality of alignment holes are arranged in a vertical direction and are inserted and fitted together.

[0014] By adopting the above technical solution, the alignment hole and the alignment post cooperate with each other to achieve rapid positioning of the sealing component, so that the sealing component can accurately seal the end of the suction pipe during the testing process.

[0015] Optionally, an installation strip is provided on the top surface of the frame, the installation strip is provided on one side of the support block, and an extension plate is horizontally connected to the vertical side wall of the support block. The extension plate is placed close to the top of the installation strip, and the extension plate is detachably connected to the installation strip through a connector.

[0016] By adopting the above technical solution, the installation strip and extension plate enable the detachable connection between the support block and the frame. For workpieces of different specifications, support blocks of different specifications can be installed on the frame.

[0017] Optionally, a receiving hole is vertically formed on the inner bottom wall of the placement groove, an ejector block is slidably disposed in the receiving hole, an elastic element is disposed in the receiving hole, the elastic element is connected to the ejector block, and in the natural state, the top end of the ejector block extends out of the receiving hole under the action of the elastic element.

[0018] By adopting the above technical solution, after the airtightness test is completed, the pressure plate is raised, the sealing part is removed, and the workpiece is pushed out of the placement slot under the action of the elastic element and the ejector block, thus realizing the rapid unloading of the workpiece.

[0019] Optionally, the sealing component further includes a connecting angle steel, which includes two vertically arranged connecting plates. The two connecting plates correspond one-to-one with the rubber sealing plate and the rubber top plate and are detachably connected.

[0020] By adopting the above technical solution, the setting of the connecting angle steel protects the rubber sealing plate and the rubber top plate, reducing the possibility of damage to both by the pressing plate and the sealing pressure plate. After the rubber sealing plate and the rubber top plate are damaged, they can be removed from the connecting angle steel for replacement.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the frame, sealing parts and supporting blocks, it can achieve the effect of rapid and accurate airtightness detection of sweeping machine workpieces; 2. The alignment column enables rapid positioning of the sealing component, allowing it to accurately seal the end of the suction pipe during the testing process; 3. The installation strip and extension plate enable a detachable connection between the support block and the frame. Support blocks of different specifications can be installed on the frame for workpieces of different sizes. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram illustrating a component of a sweeping machine in this application.

[0023] Figure 2This is a schematic diagram of the structure of an airtightness testing device for a sweeper component, as shown in Embodiment 1 of this application.

[0024] Figure 3 This is a partial sectional view / structural diagram used to illustrate the internal structure of the support block in Embodiment 1 of this application.

[0025] Figure 4 This is a partial cross-sectional view used to illustrate the ejector block in Embodiment 1 of this application.

[0026] Figure 5 This is a schematic diagram of the structure of an airtightness testing device for a sweeper component, as shown in Embodiment 2 of this application.

[0027] Figure 6 yes Figure 5 Enlarged view of part A Explanation of reference numerals in the attached drawings: 01, suction pipe; 02, transfer pipe; 1, frame; 2, sealing component; 21, rubber sealing plate; 22, rubber top plate; 3, support block; 31, placement groove; 32, insertion groove; 33, air extraction hole; 34, alignment hole; 35, receiving hole; 4, sealing gasket; 5, air extraction pipe; 6, vertical cylinder; 7, pressing plate; 8, horizontal cylinder; 9, sealing pressure plate; 10, abutment post; 11, alignment post; 12, ejection block; 13, ejection spring; 14, connecting plate; 15, dovetail groove; 16, dovetail strip; 17, mounting strip; 18, extension plate. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-6 This application will be further described in detail below. Embodiments of this application provide an airtightness testing device for sweeper components, which enables rapid and accurate airtightness testing of sweeper workpieces.

[0029] Example 1 Reference Figure 2 and Figure 3An airtightness testing device for sweeping machine components includes a frame 1, a sealing component 2, and a support block 3. The support block 3 is disposed on the top surface of the frame 1. An extension plate 18 is horizontally disposed on the vertical side wall of the support block 3. An mounting strip 17 is connected to the top surface of the frame 1. The extension plate 18 rests on the top surface of the mounting strip 17. The extension plate 18 and the mounting strip 17 are detachably connected by connectors including but not limited to bolts. A placement groove 31 for accommodating a suction pipe 01 is provided on one side of the top surface of the support block 3. One side of the placement groove 31 is flush with the vertical end wall of the support block 3. A insertion groove 32 for accommodating a transmission pipe 02 is provided on the bottom wall of the placement groove 31. A sealing gasket 4 is provided on the inner bottom wall of the insertion groove 32. An air extraction hole 33 is provided on the inner bottom wall of the insertion slot 32. An air extraction pipe 5 connected to the bottom end of the support block 3 is connected to the air extraction hole 33. The air extraction pipe 5 is connected to a vacuum negative pressure device (not shown in the attached figure). When the workpiece is placed in the support block 3, the end of the transfer pipe 02 abuts against the sealing gasket 4, and the suction pipe 01 is embedded in the placement slot 31. The open end of the suction pipe 01 extends horizontally out of the support block 3.

[0030] Reference Figure 2 and Figure 3 A vertical cylinder 6 is installed above the frame 1. The output shaft of the vertical cylinder 6 extends vertically downward and is connected to a horizontal pressing plate 7. The pressing plate 7 is vertically aligned with the support block 3. A horizontal cylinder 8 is installed on the frame 1. The output shaft of the horizontal cylinder 8 extends horizontally and is connected to a sealing pressure plate 9. The sealing pressure plate 9 is vertically positioned.

[0031] Reference Figure 3 and Figure 4 The sealing component 2 includes a rubber sealing plate 21 and a rubber top plate 22. The rubber sealing plate 21 is disposed between the sealing pressure plate 9 and the support block 3. The rubber top plate 22 is disposed on the top edge of the rubber sealing plate 21 near the support block 3, and is disposed between the pressing plate 7 and the support block 3. Two abutment posts 10 are vertically connected to the bottom surface of the rubber top plate 22, and alignment posts 11 are vertically connected to the bottom surface of the abutment posts 10. The diameter of the alignment posts 11 is smaller than the diameter of the abutment posts 10. Two alignment holes 34 are vertically formed on the top surface of the support block 3. The two alignment holes 34 correspond one-to-one with the two alignment posts 11 and are inserted into each other.

[0032] Reference Figure 4 Two receiving holes 35 are vertically formed on the inner bottom wall of the placement groove 31, and an ejector block 12 is slidably disposed in the receiving hole 35. An ejector spring 13 is provided in the receiving hole 35, one end of the ejector spring 13 is connected to the bottom surface of the receiving hole 35, and the other end is connected to the bottom surface of the ejector block 12. In the natural state, the top of the ejector block 12 protrudes out of the receiving hole 35 under the action of the ejector spring 13.

[0033] Reference Figure 3 andFigure 4 When testing the airtightness of a workpiece, the workpiece is placed in the corresponding groove on the support block 3. The transfer pipe 02 is inserted into the insertion groove 32 and abuts against the sealing gasket 4, while the suction pipe 01 is embedded in the placement groove 31. The sealing component 2 is placed in the corresponding position on the support block 3, and the alignment post 11 is inserted into the corresponding alignment hole 34. The abutment post 10 abuts against the top surface of the support block 3. The alignment block enables rapid positioning of the sealing component 2.

[0034] Reference Figure 3 and Figure 4 The horizontal cylinder 8 activates and drives the sealing plate 9 to move closer to the support block 3. The sealing plate 9 presses the rubber sealing plate 21 against the opening end of the suction port, achieving rapid and stable sealing of the suction port. The pressing plate 7, driven by the vertical cylinder 6, descends and presses the rubber top plate 22 against the top surface of the workpiece. The rubber top plate 22 reduces the possibility of damage to the workpiece during the pressing process. The pressing plate 7 and the vertical cylinder 6 press the workpiece firmly into the groove of the support block 3, ensuring a tight fit between the opening end of the transmission pipe 02 and the sealing gasket 4, which helps improve the accuracy of subsequent inspections. Air is evacuated from the workpiece through the evacuation pipe 5, and the pressure change inside the workpiece is detected using the vacuum method to accurately test its airtightness. After the workpiece inspection is completed, the sealing plate 9 and the pressing plate 7 retract, removing the sealing component 2 from the support block 3. At this time, the ejector block 12 moves upward under the action of the ejector spring 13, ejecting the workpiece out of the groove of the support block 3, facilitating the rapid unloading of the workpiece. The installation strip 17 and the extension plate 18 enable a detachable connection between the frame 1 and the support block 3, making it convenient for operators to install support blocks 3 of different specifications on the frame 1, thus expanding the applicability of the device.

[0035] The implementation principle of the airtightness testing device for a sweeper component in Embodiment 1 of this application is as follows: When testing the airtightness of a workpiece, the workpiece is placed in the corresponding groove on the support block 3. The transmission pipe 02 is inserted into the insertion groove 32 and abuts against the sealing gasket 4, and the suction pipe 01 is embedded in the placement groove 31. The sealing member 2 is placed in the corresponding position on the support block 3.

[0036] The sealing plate 9 presses the rubber sealing plate 21 tightly against the open end of the suction port, achieving rapid and stable sealing of the suction port. The pressing plate 7, driven by the vertical cylinder 6, descends and presses the rubber top plate 22 tightly against the top surface of the workpiece. Air is evacuated from the workpiece through the suction pipe 5, and the pressure change inside the workpiece is detected using a vacuum method to accurately test its airtightness.

[0037] Example 2 Reference Figure 5 and Figure 6The difference between Embodiment 2 and Embodiment 1 is that the sealing component 2 further includes a connecting angle steel. The connecting angle steel includes two vertically connected connecting plates 14. The two connecting plates 14 are respectively arranged in a one-to-one correspondence with the rubber sealing plate 21 and the rubber top plate 22. The connecting plate 14 is provided with a dovetail groove 15. The rubber sealing plate 21 and the rubber top plate 22 are provided with a dovetail strip 16 corresponding to the dovetail groove 15 on the side near the connecting plate 14. The dovetail strip 16 and the dovetail groove 15 are inserted and matched to realize the detachable connection between the rubber top plate 22 and the rubber sealing plate 21 and the connecting angle steel.

[0038] Reference Figure 5 and Figure 6 The use of connecting angle steel reduces the likelihood of damage to the rubber top plate 22 and rubber sealing plate 21 from the sealing pressure plate 9 and pressing plate 7 during the testing process. Furthermore, if the rubber sealing plate 21 and rubber top plate 22 are damaged, they can be replaced, helping to extend the service life of the sealing components 2.

[0039] The implementation principle of the airtightness testing device for a sweeper component in Embodiment 2 of this application is as follows: The setting of the connecting angle steel reduces the possibility of damage to the rubber top plate 22 and the rubber sealing plate 21 by the sealing pressure plate 9 and the pressing plate 7 during the testing process. On the other hand, when the rubber sealing plate 21 and the rubber top plate 22 are damaged, they can be replaced, which helps to extend the service life of the sealing component 2.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An airtightness testing device for a sweeper component, characterized in that: The assembly includes a frame (1), a sealing component (2), and a support block (3). The support block (3) is disposed on the top surface of the frame (1). A placement groove (31) is provided on the top surface of the support block (3). One end of the placement groove (31) is flush with one side of the support block (3). A vertical insertion groove (32) is provided on the inner bottom wall of the placement groove (31). A vertical air extraction hole (33) communicating with the insertion groove (32) is provided on the support block (3). An air extraction device communicating with the air extraction hole (33) is connected to the support block (3). The tube (5) has a sealing pressure plate (9) vertically arranged on the frame (1). The sealing pressure plate (9) is located on the side of the support block (3) where the placement groove (31) is opened. The frame (1) is provided with a first driving member for driving the sealing pressure plate (9) to move closer to or away from the support block (3). The sealing member (2) is located between the sealing pressure plate (9) and the support block (3). The sealing member (2) includes a vertically arranged rubber sealing plate (21). The height of the rubber sealing plate (21) is greater than the height of the support block (3).

2. The airtightness testing device for a sweeper component according to claim 1, characterized in that: A pressing plate (7) is horizontally arranged above the frame (1). The pressing plate (7) corresponds to the position of the support block (3) in the vertical direction. A second driving member is provided on the frame (1) for driving the pressing plate (7) to move in the vertical direction.

3. The airtightness testing device for a sweeper component according to claim 2, characterized in that: The sealing component (2) also includes a rubber top plate (22), which is horizontally and vertically disposed on the side of the rubber sealing plate (21) near the support block (3) and is disposed between the support block (3) and the pressing plate (7).

4. The airtightness testing device for a sweeper component according to claim 1, characterized in that: The cross-section of the air extraction hole (33) is smaller than the cross-section of the insertion groove (32), and a sealing gasket (4) is connected to the inner bottom wall of the insertion groove (32).

5. The airtightness testing device for a sweeper component according to claim 3, characterized in that: The bottom surface of the rubber top plate (22) is vertically provided with a plurality of alignment posts (11), and the top surface of the support block (3) is vertically provided with a plurality of alignment holes (34). The plurality of alignment posts (11) and the plurality of alignment holes (34) are vertically aligned and interlocked.

6. The airtightness testing device for a sweeper component according to claim 1, characterized in that: An installation strip (17) is provided on the top surface of the frame (1). The installation strip (17) is provided on one side of the support block (3). An extension plate (18) is horizontally connected to the vertical side wall of the support block (3). The extension plate (18) is placed close to the top of the installation strip (17). The extension plate (18) is detachably connected to the installation strip (17) through a connector.

7. The airtightness testing device for a sweeper component according to claim 3, characterized in that: The inner bottom wall of the placement groove (31) is vertically provided with a receiving hole (35), and a push-out block (12) is slidably disposed in the receiving hole (35). An elastic element is disposed in the receiving hole (35), and the elastic element is connected to the push-out block (12). In the natural state, the top end of the push-out block (12) extends out of the receiving hole (35) under the action of the elastic element.

8. The airtightness testing device for a sweeper component according to claim 3, characterized in that: The sealing component (2) also includes a connecting angle steel, which includes two vertically arranged connecting plates (14). The two connecting plates (14) correspond one-to-one with the rubber sealing plate (21) and the rubber top plate (22) and are detachably connected.

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