Airtight automatic plugging device

Abstract

The utility model discloses an airtight automatic plugging device which comprises an air cylinder, the top of the output end of the air cylinder is fixedly connected with a flange plate, the top of the flange plate is fixedly connected with a butt joint seat, the interior of the butt joint seat is slidably connected with a floating seat, and the top of the floating seat is fixedly connected with a connecting column. A strip-shaped hole is formed in the outer wall of the connecting column, a threaded hole is formed in the outer wall of the butt joint seat, and the inner wall of the threaded hole is in threaded connection with an inner hexagon bolt. When the plug is in contact with the outer wall of a product, the position of the floating seat is automatically adjusted under the guiding action of the spring and the strip-shaped hole, deflection compensation of a certain inclination angle is allowed through the spherical design of the bottom of the floating seat, and it is ensured that the plug can be attached to the surface of the non-planar product in a self-adaptive mode; the plug always keeps stable contact pressure in the propelling process, and self-adaptive sealing of the non-parallel hole channel can be completed without manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, and in particular to an airtight automatic sealing device. Background Technology

[0002] Air tightness testing is an important means of measuring the sealing performance of a product. When using an air tightness tester to test the sealing performance of automotive and other industrial products, it is necessary to seal the product's vents, oil passages, and water passages. This is to ensure the accuracy of the test and to avoid the presence of these holes affecting the reliability of the test results.

[0003] If the vent is not sealed during testing, the airtightness tester may misjudge a leak because gas escapes through the vent, rather than leaking through the product's own sealing structure. Therefore, sealing the vent ensures that the test results reflect only the performance of the product's sealing structure, rather than the influence of external factors.

[0004] In existing technologies, when sealing the vent holes, oil passage holes, and water passage holes of a product, if the vent holes, oil passage holes, and water passage holes are not parallel, the sealing surface may not be flat, resulting in air leakage. Therefore, we propose an airtight automatic sealing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an airtight automatic sealing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An airtight automatic sealing device includes a cylinder, a flange fixedly connected to the top of the cylinder's output end, a mating seat fixedly connected to the top of the flange, a floating seat slidably connected inside the mating seat, a connecting column fixedly connected to the top of the floating seat, a strip-shaped hole on the outer wall of the connecting column, a threaded hole on the outer wall of the mating seat, an internal hexagon bolt threaded to the inner wall of the threaded hole, a spring sleeved on the outer wall of the connecting column, and a sealing assembly on the top of the connecting column.

[0008] Preferably, the sealing assembly includes a plug, and a connecting sleeve is fixedly sleeved on the top of the connecting column. The inner wall of the connecting sleeve is fixedly connected to the outer wall of the plug. The sealing assembly is used to seal the vent holes, oil passage holes, and water passage holes of the product.

[0009] Preferably, one end of the internal hex bolt is located inside the slotted hole.

[0010] Preferably, the outer wall of the internal hexagonal bolt is threaded with a nut, and the outer wall of the nut is pressed against the outer wall of the mating seat. Through the threaded connection between the internal hexagonal bolt and the threaded hole, the depth of the threaded end of the internal hexagonal bolt in the strip hole can be adjusted, and the nut fixes the position of the internal hexagonal bolt.

[0011] Preferably, the top of the spring is pressed against the bottom of the connecting sleeve, and the bottom of the spring is pressed against the top of the mating seat, so that the spring provides stable contact pressure to the plug.

[0012] Preferably, the outer wall of the connecting sleeve has an assembly hole.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] In this solution, when the plug contacts the outer wall of the product, the floating seat automatically adjusts its position under the guidance of the spring and the strip hole. Its bottom spherical design allows for a certain tilt angle deflection compensation, ensuring that the plug can adaptively fit the non-planar product surface. The synergistic effect of the gap fit of the connecting column and the spring preload ensures that the plug maintains a stable contact pressure during the pushing process, and can achieve adaptive sealing of non-parallel channels without manual intervention. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded structural diagram of an airtight automatic sealing device proposed in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of an airtight automatic sealing device proposed in this utility model;

[0018] Figure 3 This is a front view structural diagram of an airtight automatic sealing device proposed in this utility model.

[0019] In the diagram: 1. Cylinder; 2. Flange; 3. Dating seat; 4. Floating seat; 5. Connecting column; 6. Strip hole; 7. Socket head bolt; 8. Nut; 9. Spring; 10. Connecting sleeve; 11. Assembly hole; 12. Plug. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Depend on Figures 1-3 As shown, an airtight automatic sealing device is disclosed, including a cylinder 1. An existing PLC controller can be added and electrically connected to the cylinder 1. A flange 2 is fixedly connected to the top of the output end of the cylinder 1. A mating seat 3 is fixedly connected to the top of the flange 2. The mating seat 3 has a hollow structure. A floating seat 4 is slidably connected inside the mating seat 3. There is a certain distance between the floating seat 4 and the flange 2. The bottom of the floating seat 4 is machined into a spherical surface to form a spherical pair with the inner cavity of the mating seat 3 to satisfy the compression of the spring 9. A connecting column 5 is fixedly connected to the top of the floating seat 4. There is a sufficient gap between the connecting column 5 and the mating seat 3.

[0023] The outer wall of the connecting column 5 has a strip hole 6, and the outer wall of the mating seat 3 has a threaded hole. The inner wall of the threaded hole is threaded with an internal hex bolt 7. One end of the internal hex bolt 7 is located inside the strip hole 6. The internal hex bolt 7 plays an auxiliary guiding role, and the diameter of the threaded end is smaller than the width of the strip hole 6. The outer wall of the internal hex bolt 7 is threaded with a nut 8. The outer wall of the nut 8 is pressed against the outer wall of the mating seat 3. The internal hex bolt 7 and the nut 8 form an adjustable limiting structure.

[0024] A spring 9 is fitted on the outer wall of the connecting column 5. The top of the spring 9 is pressed against the bottom of the connecting sleeve 10, and the bottom of the spring 9 is pressed against the top of the mating seat 3. When the cylinder 1 drives the plug 12 to seal, the spring 9 provides contact pressure.

[0025] The top of the connecting column 5 is provided with a sealing assembly, which includes a plug 12. The plug 12 can be made of rubber to provide a seal. The top of the connecting column 5 is fixedly fitted with a connecting sleeve 10. The inner wall of the connecting sleeve 10 is fixedly connected to the outer wall of the plug 12. The outer wall of the connecting sleeve 10 is provided with an assembly hole 11.

[0026] Working principle: In use, cylinder 1 is installed on the existing frame or equipment, and the plug 12 is positioned in front of the product's vent or other air outlet. The operation of cylinder 1 drives flange 2 and docking seat 3 to move outward. The outward movement of docking seat 3 drives connecting sleeve 10 and plug 12 to move outward. When plug 12 contacts the outer wall of the product, if the product is not in a relatively horizontal position with plug 12, as plug 12 gradually presses against the outer wall of the product, plug 12 is locally stressed. At this time, floating seat 4 is first pressed by spring 9 and internal hex bolt 7 and moves along the strip hole 6. During the movement, due to the gap between connecting column 5, floating seat 4 (the bottom of floating seat 4 is spherical) can tilt within docking seat 3, thereby playing a compensating role. As cylinder 1 drives plug 12 forward, plug 12 can fit against the outer wall of the product and seal the product's vent or other air outlet.

[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An airtight automatic sealing device, comprising a cylinder (1), characterized in that, A flange (2) is fixedly connected to the top of the output end of the cylinder (1). A mating seat (3) is fixedly connected to the top of the flange (2). A floating seat (4) is slidably connected inside the mating seat (3). A connecting column (5) is fixedly connected to the top of the floating seat (4). A strip hole (6) is opened on the outer wall of the connecting column (5). A threaded hole is opened on the outer wall of the mating seat (3). An internal hex bolt (7) is threadedly connected to the inner wall of the threaded hole. A spring (9) is sleeved on the outer wall of the connecting column (5). A sealing component is provided on the top of the connecting column (5).

2. The airtight automatic sealing device according to claim 1, characterized in that, The sealing assembly includes a plug (12), and a connecting sleeve (10) is fixedly sleeved on the top of the connecting column (5). The inner wall of the connecting sleeve (10) is fixedly connected to the outer wall of the plug (12).

3. The airtight automatic sealing device according to claim 1, characterized in that, One end of the internal hex bolt (7) is located inside the strip hole (6).

4. The airtight automatic sealing device according to claim 1, characterized in that, The outer wall of the internal hex bolt (7) is threaded with a nut (8), and the outer wall of the nut (8) is pressed against the outer wall of the mating seat (3).

5. The airtight automatic sealing device according to claim 2, characterized in that, The top of the spring (9) is pressed against the bottom of the connecting sleeve (10), and the bottom of the spring (9) is pressed against the top of the mating seat (3).

6. The airtight automatic sealing device according to claim 2, characterized in that, The outer wall of the connecting sleeve (10) is provided with an assembly hole (11).

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