Air tightness detection tool for filter element plastic shell

Abstract

The utility model relates to the technical field of filters, in particular to a filter element plastic shell air tightness detection tool which is composed of an upper die structure and a lower die structure, the lower die is fixed, a plastic shell can be quickly assembled, meanwhile, an inner area and an outer area of the plastic shell are isolated through a sealing ring, a glass cover plate is arranged above the detection tool, and the detection tool can be used for detecting the air tightness of the plastic shell. And meanwhile, an air cylinder is further arranged to press the guide shaft and the linear bearing movement assembly downwards so that the upper die can move up and down. Compared with the prior art, the plastic shell can be quickly assembled and disassembled through up-down switching of the upper die, the profiling sealing soft rubber is attached to the plastic shell to play a role in sealing the interior of the plastic shell, the sealing effect is good, and the sealing performance of the plastic shell can be efficiently detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field, concretely is a kind of filter core plastic shell air tightness detection tool. BACKGROUND

[0002] The existing filter generally adopts semicircular filter core, and the filter core plastic shell shape is special and contains soft rubber sealing structure, which plays a crucial role in filtering, so the sealing performance of the plastic shell needs to be verified, but due to the special shape of the plastic shell, it is difficult to ensure that it is in a sealed environment through simple clamping test, the test process is relatively complex, and the sealing performance test of the plastic shell is relatively difficult, and usually the filter is tested in batches in the same batch, so the filter core needs to be quickly assembled and disassembled to facilitate improving the test efficiency. SUMMARY

[0003] The utility model discloses a kind of filter core plastic shell air tightness detection tool to overcome the deficiency of prior art, it is composed of upper and lower die structure, lower die is fixed, plastic shell can be quickly assembled, the inner and outer areas of plastic shell are isolated by sealing ring simultaneously, the upper side of detection tool is equipped with the cover plate of glass, can observe inside tool at any time, it is also equipped with cylinder to realize the up-down movement of upper die by the lower pressure of guide shaft and linear bearing movement component.

[0004] To achieve the above object, a kind of filter core plastic shell air tightness detection tool is designed, including upper die, lower die, the lower die side is equipped with air vent one, lower die left and right sides are slidably connected with guide shaft, the upper end of left and right guide shaft is respectively connected with the both ends of cylinder fixed plate by passing through upper die, the upper side of upper die is equipped with several cover plates, the lower side of upper die is connected with profiled soft rubber, upper die is equipped with several through holes, through hole is sealed by several cover plates, one cover plate is equipped with air vent two that is connected with inside and outside.

[0005] The lower die is a box structure, and an inner cavity for accommodating the filter core plastic shell is arranged inside.

[0006] The upper side of the cylinder fixed plate is equipped with a pressing cylinder, and the piston rod in the pressing cylinder is connected with the upper die by passing through the cylinder fixed plate.

[0007] The left and right sides of the filter core plastic shell are respectively equipped with concave soft rubber, the shape of the concave soft rubber is matched with the profiled soft rubber, the two ports of the filter core plastic shell are equipped with arc convex surfaces, and the lower surface of the upper die is equipped with arc concave surfaces matched with the arc convex surfaces.

[0008] The air vent one and the air vent two are coated with sealing adhesive at the connection with the lower die.

[0009] The linear bearing is sleeved on the connection between the guide shaft and the upper die.

[0010] Compared with the prior art, the upper mold can be switched up and down to realize quick mounting and dismounting of the plastic shell, the profiled sealing soft rubber is attached to the plastic shell to play a sealing role in the plastic shell, the sealing effect is good, and the sealing property of the plastic shell can be efficiently detected. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the utility model.

[0012] Figure 2 It is a lower mold sectional view.

[0013] Figure 3 It is an upper mold schematic view.

[0014] Figure 4 It is a filter plastic shell.

[0015] Referring to Figures 1 to 4 , 1 is a lower mold, 2 is a vent one, 3 is a filter plastic shell, 4 is a guide shaft, 5 is a linear bearing, 6 is an upper mold, 7 is a cover plate, 8 is a cylinder fixing plate, 9 is a vent two, 10 is a downward pressing cylinder, 11 is a profiled soft rubber, 12 is a concave soft rubber, 13 is a circular arc convex surface, and 14 is a circular arc concave surface. DETAILED DESCRIPTION

[0016] The utility model will be further described below according to the drawings.

[0017] As Figure 1 shown, the lower mold 1 side is equipped with the vent one 2, the vent one 2 is used for connecting the test tube of leakage tester, the lower mold 1 left and right sides are slidably connected with guide shaft 4 respectively, the upper end of left and right guide shaft 4 is connected with the both ends of cylinder fixing plate 8 respectively through upper mold 6, guide shaft 4 passes through the corresponding hole of upper mold 6 and lower mold 1 respectively, linear bearing 5 is sleeved on the connecting place of guide shaft 4 and upper mold 6, linear bearing 5 is used to guide upper mold 6 and play the role of reducing friction, as Figure 3 shown, the upper mold 6 lower side is connected with profiled soft rubber 11, profiled soft rubber 11 can play a sealing role in cooperation with concave soft rubber 12, the upper mold 6 is equipped with a plurality of through holes, the through hole is sealed through a plurality of cover plates 7, the number of through holes can be two, the cover plate can be organic glass cover plate, the inside of tooling can be observed at any time, which is convenient for technical personnel to collect data and record, a cover plate 7 is equipped with vent two 9 that communicates inside and outside.

[0018] The lower mold 1 is a box structure, and an inner cavity capable of accommodating the filter plastic shell 3 is arranged in the box structure.

[0019] The cylinder fixing plate 8 is provided with a downward pressing cylinder 10, a piston rod in the downward pressing cylinder 10 is connected with the upper mold 6 through the cylinder fixing plate 8, and the downward pressing cylinder 10 is used to drive the upper mold 6 to move up and down.

[0020] AsFigure 4 As shown, the filter plastic shell 3 is provided with concave soft glue 12 on both sides, and the two ports of the filter plastic shell 3 are provided with circular arc convex surface 13, and the lower surface of the upper die 6 is provided with circular arc concave surface 14 matched with the circular arc convex surface 13, and the circular arc concave surface 13 and the circular arc concave surface 14 are matched and sealed.

[0021] The air vent one 2 and the air vent two 9 are coated with sealing adhesive at the connection with the lower die 1.

[0022] The specific implementation manner of the utility model is as follows: firstly, the leakage tester suction pipe is connected to the air vent two 9, and the leakage tester test tube is connected to the air vent one 2, the filter plastic shell 3 to be measured is placed in the lower die 1, the equipment is started, the lower pressure cylinder 10 drives the upper die 6 to descend, the upper die 6 descends to the bottom, the plastic shell circular arc convex surface 13 and the circular arc concave surface 14 are matched and sealed, the concave soft glue 12 of the filter plastic shell 3 and the profiled soft glue 11 of the upper die 6 are matched and sealed, as shown in the figure, Figure 2 As shown, at this time, the upper and lower dies are completely closed and sealed, the leakage tester is started, the air is sucked at the air vent two 9 through the leakage tester suction pipe, at this time, the leakage tester test tube at the air vent one 2 is observed, since the leakage tester test tube is also a closed space, whether there is leakage between the closed space formed by the upper die 6 and the lower die 1 and the closed space of the test tube can be judged by observation, after the test is completed, the unlocking button is pressed on the equipment, the lower pressure cylinder 10 drives the upper die 6 to rise, and the technician can take out the measured part.

Claims

1. A filter core plastic shell air tightness detection tool, comprising an upper die and a lower die, characterized in that: The lower mold (1) is provided with a vent (2) on one side, and the left and right sides of the lower mold (1) are respectively connected with guide shafts (4) in a sliding mode, the upper ends of the left and right guide shafts (4) are respectively connected with the two ends of a cylinder fixing plate (8) through the upper mold (6), two cover plates (7) are arranged above the upper mold (6), the lower mold (6) is connected with profiled soft rubber (11) on the two sides below the upper mold (6), the upper mold (6) is provided with a plurality of through holes, the through holes are sealed by the cover plates (7), and one cover plate (7) is provided with a vent (9) for communication between the inside and the outside.

2. The filter core plastic shell air tightness detection tool of claim 1, wherein: The lower mold (1) is a box structure, and is internally provided with an inner cavity capable of accommodating the filter plastic shell (3).

3. The filter core plastic shell air tightness detection tool of claim 1, wherein: The lower surface of the upper mold (6) is provided with a circular arc concave surface (14) matched with the circular arc convex surface (13).

4. The filter core plastic shell air tightness detection tool of claim 2, wherein: The vents (2) and (9) are coated with sealing adhesive at the connection with the lower mold (1).

5. The filter core plastic shell air tightness detection tool of claim 1, wherein: The guide shafts (4) are respectively provided with linear bearings (5) at the connection with the upper mold (6).

6. The filter core plastic shell air tightness detection tool of claim 1, wherein: The lower mold (1) is provided with a vent (2) on one side, and the left and right sides of the lower mold (1) are respectively connected with guide shafts (4) in a sliding mode, the upper ends of the left and right guide shafts (4) are respectively connected with the two ends of a cylinder fixing plate (8) through the upper mold (6), two cover plates (7) are arranged above the upper mold (6), the lower mold (6) is connected with profiled soft rubber (11) on the two sides below the upper mold (6), the upper mold (6) is provided with a plurality of through holes, the through holes are sealed by the cover plates (7), and one cover plate (7) is provided with a vent (9) for communication between the inside and the outside. The lower mold (1) is a box structure, and is internally provided with an inner cavity capable of accommodating the filter plastic shell (3). The lower surface of the upper mold (6) is provided with a circular arc concave surface (14) matched with the circular arc convex surface (13). The vents (2) and (9) are coated with sealing adhesive at the connection with the lower mold (1). The guide shafts (4) are respectively provided with linear bearings (5) at the connection with the upper mold (6).

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