CN219369030U

CN219369030U - Automatic sealing plug device

Info

Publication number: CN219369030U
Application number: CN202320109716.XU
Authority: CN
Inventors: 陈友三; 陈常彬; 苏伟中; 傅春桥; 史永国; 史永辉
Original assignee: Tianjin New Wei San Industrial Co ltd
Current assignee: Tianjin New Wei San Industrial Co ltd
Priority date: 2023-01-19
Filing date: 2023-01-19
Publication date: 2023-07-18
Anticipated expiration: 2033-01-19

Abstract

An automatic sealing plug device, comprising: the ejector rod and the ejector sleeve are sleeved outside the ejector rod; the upper end of the ejector rod is provided with a first hole which can be screwed on the leakage testing jig cylinder, the lower end of the first hole in the ejector rod is provided with a distance, the lower end of the first hole in the ejector rod is provided with a central hole, and a spring is placed in the central hole; a pull rod is arranged in a central hole at the inner lower end of the ejector rod, and the upper end of the pull rod is provided with a pin hole for pressing the spring; the top sleeve is a columnar structure larger than the top rod and is a hollow structure which can be sleeved outside the top rod and is not sealed at the upper part and the lower part. Under the action of the air cylinder, the utility model not only can effectively seal the bushing hole without air leakage, but also eliminates the hidden quality trouble of inaccurate bushing hole air leakage data test during the workpiece leakage test; moreover, the risk of product quality degradation during workpiece leakage is avoided, and meanwhile, economic losses to companies and clients are avoided.

Description

Automatic sealing plug device

Technical Field

The utility model belongs to the field of machine manufacturing, and particularly relates to an automatic sealing plug device.

Background

Currently, there are many products such as turbine shells, intermediate shells, etc. produced in the machining industry that require leak testing to detect if the product is leaking, to ensure that the product is free of casting or machining defects. When in leakage test, each sealing surface or lining hole of the workpiece needs to be sealed, wherein two sealing modes are commonly used; one is an end face seal, and the end face seal mode is as follows: the cylinder is used for supporting a device with one end face embedded into the sealing ring and is tightly stuck on the sealing surface or the end face of the lining hole of the shell for sealing; because the end surface area of the bushing hole is smaller, the sealing is not tight, and air leakage is easy to occur during leakage test. The other is a radial sealing mode, and the end face sealing mode is as follows: the cylindrical plug is additionally arranged in the hole, a round groove is formed in the cylindrical plug, and an O-shaped sealing ring is arranged in the round groove, however, the sealing mode has the following defects: when the O-shaped ring is compared with Kong Dashi, the cylindrical plug is not easy to enter, and when the O-shaped ring is compared with Kong Xiaoshi, the sealing is not tight; leakage may occur during the leak test. Therefore, the leakage test data is inaccurate, the product quality is greatly affected, the product quality is reduced, and economic losses are caused to companies and clients.

Disclosure of Invention

The utility model aims to provide an automatic sealing plug device which is used for solving the technical problem that air leakage is easy to occur when products such as turbine shells, middle shells and the like are subjected to leakage test. In order to achieve the above purpose, the specific technical scheme of the automatic sealing plug device of the utility model is as follows:

an automatic sealing plug device comprising: the ejector rod and the ejector sleeve are sleeved outside the ejector rod; the upper end of the ejector rod is provided with a first hole which can be screwed on the leakage testing jig cylinder, the lower end of the first hole in the ejector rod is provided with a distance, the lower end of the first hole in the ejector rod is provided with a central hole, and a spring is placed in the central hole; a pull rod is arranged in a central hole at the inner lower end of the ejector rod, and the upper end of the pull rod is provided with a pin hole for pressing the spring; the top sleeve is a columnar structure larger than the top rod and is a hollow structure which can be sleeved outside the top rod and is not sealed at the upper part and the lower part.

Further, a plurality of U-shaped holes are formed in the lower end of the ejector rod and used for installing the ejector sleeve on the ejector rod; and two U-shaped holes on the ejector rod are connected with the pin holes on the pull rod, and the other end of the ejector rod is provided with a counter bore.

Further, the U-shaped hole is 10mm away from the bottom end of the counter bore, and the ejector rod is penetrated and perpendicular to the counter bore.

Further, two pin holes are formed in the two transverse ends of the top sleeve, and a fixing pin penetrates through the pin holes in the two ends of the top sleeve to fix the top sleeve on the U-shaped hole in the ejector rod.

Further, the pull rod is in a T shape, is poured into the central hole and is connected with the spring in a contact mode; and the pull rod is made of the following materials: 45# steel.

Further, a rubber ring is arranged between the pull rod and the top sleeve, and the rubber ring is sleeved on the pull rod; and the upper end of the pull rod is provided with a pin hole, and a fixing pin penetrates through the two pin holes on the top sleeve and the pin hole on the pull rod and is fixed on the U-shaped hole on the top rod.

Further, the first hole is a threaded hole, and the specification is as follows: m10 is 10mm for twist the ejector pin on leaking test tool cylinder, and lock with the nut.

Further, the pull rod is sleeved with a rubber ring and is placed on a spring in a central hole in the ejector rod.

Further, the spring is a cylindrical compression spring, and the specification of the spring is as follows: 0.5 x 6 x 10mm, and the spring is placed in the counterbore of the ejector pin.

Further, the first hole is: m10 x 10mm screw hole, the distance is set to the lower extreme of the first hole in the ejector pin to: 10mm, and this department is equipped with a centre bore, and this centre bore is: phi 6.6x50mm counter bore.

The automatic sealing plug device has the following advantages:

according to the utility model, under the action of the air cylinder, after the workpiece lining hole is jacked in, the automatic sealing plug automatically plugs the lining hole by using the rubber ring at the top under the action of the internal mechanism of the automatic sealing plug, so that the lining hole can be effectively sealed from air leakage, and the quality hidden trouble of inaccurate lining hole air leakage data test during the workpiece leakage test is eliminated; moreover, the risk of product quality degradation during workpiece leakage is avoided, and meanwhile, economic losses to companies and clients are avoided.

Drawings

FIG. 1 is a schematic diagram of the overall outline structure of the present utility model;

FIG. 2 is a schematic view of the structure A-A of the present utility model;

FIG. 3 is a schematic view of the section A-A of FIG. 2;

FIG. 4 is a schematic diagram of the present utility model in which discrete components are connected together to form an overall structure;

FIG. 5 is a schematic view of the direction of the leakage test performed on the cylinder of the leakage test fixture according to the present utility model;

FIG. 6 is a schematic diagram of a cylinder of the leak test fixture according to the present utility model.

The figure indicates:

1. the device comprises a push rod, a spring, a push sleeve, a fixing pin, a pull rod, a rubber ring, a leakage testing jig cylinder and a workpiece lining hole.

Detailed Description

For a better understanding of the objects, structure and function of the present utility model, an automatic sealing plug device according to the present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the present utility model includes: the ejector rod 1 and the ejector sleeve 3 sleeved outside the ejector rod 1; the ejector rod 1 is columnar, a first hole capable of being screwed on the leakage testing jig cylinder 7 is arranged at the upper end in the ejector rod 1, (the first hole in the embodiment is a threaded hole with the diameter of M10 x 10 mm), and the distance between the lower ends of the first hole in the ejector rod 1 is as follows: 10mm, and this department is equipped with a centre bore, and this centre bore is: a counter bore with phi of 6.6 mm and 50mm is internally provided with a spring 2; the spring 2 is a cylindrical compression spring, and has the specification of: 0.5 x 6 x 10mm (wire diameter x outer diameter x length); a pull rod 5 is arranged in a central hole at the inner lower end of the ejector rod 1, and a pin hole is arranged at the upper end of the pull rod 5 and used for pressing the spring 2; the top sleeve 3 is a columnar structure larger than the top rod 1, and is a hollow structure (namely, a through hole) which can be sleeved outside the top rod 1 and is not sealed up and down.

The lower end of the ejector rod 1 is provided with a plurality of (two in this embodiment) U-shaped holes for installing the ejector sleeve 3 on the ejector rod 1.

Two pin holes are formed in the two transverse ends of the top sleeve 3, and a fixing pin 4 penetrates through the pin holes in the two ends of the top sleeve 3 to fix the top sleeve 3 on the U-shaped hole in the ejector rod 1.

The pull rod 5 is of a T shape, is poured into the central hole and is connected with the spring 2 in a contact mode.

The pull rod 5 is made of the following materials: 45# steel.

As shown in fig. 4, a rubber ring 6 is arranged between the pull rod 5 and the top sleeve 3, and the rubber ring 6 is sleeved on the pull rod 5; and a pin hole is arranged at the upper end of the pull rod 5, the pull rod 5 is arranged in the ejector rod 1 and presses the spring 2, and a fixing pin 4 passes through the two pin holes on the ejector sleeve 3 and the pin hole on the pull rod 5 and is fixed on the U-shaped hole on the ejector rod 1.

The first hole at one end of the ejector rod 1 is a threaded hole and is used for screwing the ejector rod 1 on the leakage test jig cylinder 7 and locking the leakage test jig cylinder by using a nut, and the other end of the ejector rod 1 is drilled with a counter bore;

the ejector rod 1 is provided with a U-shaped hole which is 10mm away from the bottom end of the counter bore, and the ejector rod 1 is communicated and vertical to the counter bore; a spring 2 with the length of 10mm is placed in a counter bore of the ejector rod 1;

the pull rod 5 is sleeved with a rubber ring 6 and is placed on the spring 2 in the central hole in the ejector rod 1.

The top sleeve 3 is provided with two pin holes, the top sleeve 3 is sleeved on the ejector rod 1, and a fixing pin 4 penetrates through the two pin holes on the top sleeve 3 and the two U-shaped holes on the ejector rod 1 to be connected with the pin holes on the pull rod 5;

when the leak testing machine is started, the connected ejector rod 1 is ejected into a workpiece bushing hole 8 arranged on the jig by a leak testing jig cylinder 7; after the ejector rod 1 is ejected into the workpiece lining hole 8, the surface of the ejector rod 3 is contacted with the outer end surface of the workpiece lining hole 8, the ejector rod 1 is continuously ejected into the workpiece lining hole 8, the ejector rod 3 drives the pull rod 5 to move backwards on the U-shaped hole of the ejector rod 1 through the fixing pin 4 under the resistance of the end surface of the workpiece lining hole 8, and the pull rod 5 pulls and extrudes the rubber ring 6 to expand while moving backwards in the central hole of the ejector rod 1, so that the workpiece lining hole 8 is sealed and blocked, and the effect of sealing the workpiece lining hole 8 is achieved.

The spring 2 is arranged in the central hole of the ejector rod 1 and used for supporting the pull rod 5, and the top of the pull rod 5 is connected to the top sleeve 3 through a U-shaped hole on the ejector rod 1 by a fixing pin 4.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The working principle of the utility model is as follows:

when the leakage tester is used, after the leakage tester is started, the ejector rod 1 at the top is ejected into the workpiece lining hole 8 by the leakage test tool cylinder 7, when the ejector rod 1 advances, the ejector sleeve outside the ejector rod 1 is ejected onto the end face of the workpiece lining hole 8, the ejector rod 1 continues to be ejected forward for a distance, the fixing pin 4 on the ejector rod 3 pulls the pull rod 5 on the U-shaped hole of the ejector rod 1, the distance between the T-shaped end face at the lower end of the pull rod 5 and the lower end face of the ejector rod 1 is shortened, so that the rubber ring 6 is compressed and transversely expanded to fill the cross section of the workpiece lining hole 8, the workpiece lining hole 8 is sealed, the workpiece is tightly pressed by the leakage test tool, after the other positions of the workpiece are sealed, the leakage test tool cylinder 7 withdraws the ejector rod 1 at the top from the workpiece lining hole 8 after the leakage test is finished.

The spring and the rubber ring are in the prior art, and the unexplained technology is in the prior art, so that the description is omitted.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. An automatic sealing plug device, comprising: the ejector rod and the ejector sleeve are sleeved outside the ejector rod; the upper end of the ejector rod is provided with a first hole which can be screwed on the leakage testing jig cylinder, the lower end of the first hole in the ejector rod is provided with a distance, the lower end of the first hole in the ejector rod is provided with a central hole, and a spring is placed in the central hole; a pull rod is arranged in a central hole at the inner lower end of the ejector rod, and the upper end of the pull rod is provided with a pin hole for pressing the spring; the top sleeve is a columnar structure larger than the top rod and is a hollow structure which can be sleeved outside the top rod and is not sealed at the upper part and the lower part.

2. The automatic sealing plug device according to claim 1, wherein a plurality of U-shaped holes are formed in the lower end of the ejector rod for mounting the ejector sleeve on the ejector rod; and two U-shaped holes on the ejector rod are connected with the pin holes on the pull rod, and the other end of the ejector rod is provided with a counter bore.

3. The automatic sealing plug device according to claim 2, wherein the U-shaped hole is 10mm away from the bottom end of the counter bore, penetrates the ejector rod, and is perpendicular to the counter bore.

4. The automatic sealing plug device according to claim 1, wherein two pin holes are formed in two transverse ends of the top sleeve, and a fixing pin penetrates through the pin holes in two ends of the top sleeve to fix the top sleeve to the U-shaped hole in the ejector rod.

5. The self-sealing plug device of claim 1, wherein the pull rod is t-shaped and poured into the central hole and in contact with the spring; and the pull rod is made of the following materials: 45# steel.

6. The automatic sealing plug device according to claim 1, 4 or 5, wherein a rubber ring is arranged between the pull rod and the top sleeve, and the rubber ring is sleeved on the pull rod; and the upper end of the pull rod is provided with a pin hole, and a fixing pin penetrates through the two pin holes on the top sleeve and the pin hole on the pull rod and is fixed on the U-shaped hole on the top rod.

7. The self-sealing plug device of claim 1, wherein the first hole is a threaded hole having a specification of: m10 is 10mm for twist the ejector pin on leaking test tool cylinder, and lock with the nut.

8. The self-sealing plug device of claim 1 or 5, wherein the pull rod is sleeved with a rubber ring and placed on a spring in a central hole in the push rod.

9. The automatic sealing plug device according to claim 1 or 2, wherein the spring is a cylindrical compression spring, and the spring has the following specifications: 0.5 x 6 x 10mm, and the spring is placed in the counterbore of the ejector pin.

10. The automatic sealing plug device according to claim 1 or 7, wherein a lower end of the first hole in the ejector rod is spaced apart by a distance: 10mm, and this department is equipped with a centre bore, and this centre bore is: phi 6.6x50mm counter bore.