CN218152326U

CN218152326U - Utensil is assisted in leak testing shutoff of oil duct unthreaded hole

Info

Publication number: CN218152326U
Application number: CN202221442738.XU
Authority: CN
Inventors: 朱惠春
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-12-27
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses an oil duct unthreaded hole leakage test shutoff assistive device belongs to mechanical parts technical field, including screwing up the nut, compressing tightly stopper, fixed block, sealed stifled and connecting screw, the connecting screw inversion is in the oil duct unthreaded hole, and connecting screw is last from the bottom up to be equipped with fixed block, sealed stifled, compress tightly stopper and screw up the nut in proper order, fixed block and sealed stifled all are located the oil duct unthreaded hole, compress tightly the stopper and be located the tip of oil duct unthreaded hole, be used for limiting the shutoff position of sealed stifled in the unthreaded hole; the tightening nut is located outside the oil passage unthreaded hole. The plugging assistive device adopts the screw as a support to ensure that the connecting nut and the compression limiting block generate moderate deformation when applying compression force on the sealing plug, thereby completing the sealing performance, being convenient and fast to operate, having good sealing effect and being low in manufacturing cost of the assistive device.

Description

Utensil is assisted in leak testing shutoff of oil duct unthreaded hole

Technical Field

The utility model belongs to the technical field of mechanical parts, concretely relates to utensil is assisted in leak testing shutoff of oil duct unthreaded hole.

Background

In the trial-manufacturing in-process in earlier stage of the product, because main oil gallery hole machine adds the completion back, the restriction of product structural design, unable shutoff, generally do not carry out the leak test when the machine adds in earlier stage, carry out the whole machine leak test when the installation, the whole machine leaks when leaking, and the problem of seeking and tear open all bring a lot of difficulties and work load.

In the trial production processing stage of the product, as the investment fund is low, a leak tester is adopted to test the leakage by combining a manual leak testing and plugging method; the leakage test in the general machining process is carried out by designing and manufacturing some simple plugging aids for leakage test; the periphery has a plurality of screw holes, can borrow a plurality of screw holes tightly, seals up the unthreaded hole with the mode of sealing pad on the clamp plate. However, because the blocking unthreaded hole of the main oil gallery press-fitting cylinder ball is not provided with adjacent fixed tightening holes on the same plane, blocking cannot be realized, leakage test can only be carried out on the whole machine, if a leakage point occurs, the test performance of the whole machine is seriously influenced, and the disassembly is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

In order to overcome the unable shutoff scheduling problem that realizes of shutoff unthreaded hole of main oil gallery pressure equipment jar ball that exists among the prior art, the utility model provides an utensil is assisted to manual leak testing shutoff of engine trial-manufacturing main oil gallery unthreaded hole, this shutoff is assisted the utensil and has been avoidd the risk that little hourglass and big hourglass appear in the complete machine leak testing, and the many-sided practice of process is verified, adopts this shutoff to assist the utensil leak testing reliable, and the shutoff is changed conveniently, and suitable small batch is trial-manufactured and is used.

The utility model discloses a following technical scheme realizes:

an auxiliary tool for leak testing and plugging of an oil duct unthreaded hole comprises a screwing nut 1, a compression limiting block 2, a fixing block 4, a sealing plug 3 and a connecting screw 5, wherein the connecting screw 5 is inverted in the oil duct unthreaded hole, the fixing block 4, the sealing plug 3, the compression limiting block 2 and the screwing nut 1 are sequentially sleeved on the connecting screw 5 from bottom to top, the fixing block 4 and the sealing plug 3 are both positioned in the oil duct unthreaded hole, and the compression limiting block 2 is positioned at the end part of the oil duct unthreaded hole and used for limiting the plugging position of the sealing plug in the unthreaded hole; the tightening nut 1 is located outside the oil passage unthreaded hole.

Furthermore, the compressing limiting block 2 is of a T-shaped structure, the lower section of the T-shaped structure is located in the oil duct unthreaded hole, and the upper section of the T-shaped structure is located on the outer end face of the oil duct unthreaded hole and used for limiting the blocking position of the sealing plug in the unthreaded hole.

Furthermore, the inner diameters of the tightening nut 1, the compression limiting block 2, the fixing block 4 and the sealing plug 3 are provided with inner threads, and the inner threads are matched with the outer threads of the connecting screw 5 to realize tight attachment.

Further, the outer diameter of the lower section of the T-shaped structure of the pressing limiting block 2 and the outer diameter of the fixing block 4 are both smaller than the diameter of the oil duct unthreaded hole.

Furthermore, the diameter of the outer circle of the sealing plug 3 is 0.1mm-0.2mm smaller than the diameter of the oil duct unthreaded hole.

Further, the lower section of the T-shaped structure of the pressing limiting block 2 and the end face of the fixing block 4 contacting with the sealing plug 3 are both wedge-shaped end faces.

Further, the sealing plug 3 is made of polyurethane material, and the Shore hardness is 70-80.

Further, the material of the pressing limiting block 2 and the fixing block 4 is copper.

Compared with the prior art, the utility model has the advantages as follows:

the utility model discloses an utensil is assisted to oil duct unthreaded hole leak test shutoff adopts the screw as the support to guarantee that coupling nut and compress tightly the stopper and produce the deformation of moderate degree when applying the packing force to sealed stifled, thereby accomplish sealing performance, the simple operation, sealed effect is good, and it is with low costs to assist the utensil preparation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of an oil duct unthreaded hole leak testing and plugging assistive device of the present invention;

in the figure: the device comprises a screwing nut 1, a pressing limiting block 2, a fixing block 4, a sealing plug 3 and a connecting screw 5.

Detailed Description

For clear and complete description of the technical solution and the specific working process of the present invention, the following embodiments are provided in conjunction with the accompanying drawings of the specification:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Example 1

As shown in fig. 1, the embodiment provides an oil duct unthreaded hole leakage-testing plugging assistive device, which includes a tightening nut 1, a pressing limiting block 2, a fixed block 4, a sealing plug 3 and a connecting screw 5, wherein the connecting screw 5 is inverted in the oil duct unthreaded hole, the fixed block 4, the sealing plug 3, the pressing limiting block 2 and the tightening nut 1 are sequentially sleeved on the connecting screw 5 from bottom to top, the fixed block 4 and the sealing plug 3 are both located in the oil duct unthreaded hole, and the pressing limiting block 2 is located at an end of the oil duct unthreaded hole and used for limiting a plugging position of the sealing plug in the unthreaded hole; the tightening nut 1 is located outside the oil passage unthreaded hole.

Example 2

As shown in fig. 1, the embodiment provides an auxiliary tool for leak testing and plugging of an oil duct unthreaded hole, which comprises a screwing nut 1, a pressing limiting block 2, a fixed block 4, a sealing plug 3 and a connecting screw 5, wherein the connecting screw 5 is inverted in the oil duct unthreaded hole, the fixed block 4, the sealing plug 3, the pressing limiting block 2 and the screwing nut 1 are sequentially sleeved on the connecting screw 5 from bottom to top, the fixed block 4 and the sealing plug 3 are both positioned in the oil duct unthreaded hole, and the pressing limiting block 2 is positioned at the end part of the oil duct unthreaded hole and used for limiting the plugging position of the sealing plug in the unthreaded hole; the tightening nut 1 is located outside the oil passage unthreaded hole.

In this embodiment, the compressing and limiting block 2 is a T-shaped structure, a lower segment of the T-shaped structure is located in the oil duct unthreaded hole, and an upper segment of the T-shaped structure is located at an external end face of the oil duct unthreaded hole and used for limiting the plugging position of the sealing plug in the unthreaded hole.

In this embodiment, the internal diameters of the tightening nut 1, the compression limiting block 2, the fixing block 4 and the sealing plug 3 are provided with internal threads, and the internal threads are matched with the external threads of the connecting screw 5 to realize tight attachment.

In this embodiment, the outer diameter of the lower segment of the T-shaped structure of the pressing limiting block 2 and the outer diameter of the fixing block 4 are both smaller than the diameter of the oil duct unthreaded hole.

In this embodiment, the diameter of the outer circle of the sealing plug 3 is 0.1mm-0.2mm smaller than the diameter of the oil passage unthreaded hole.

In this embodiment, the lower section of the T-shaped structure of the pressing and limiting block 2 and the end surface of the fixing block 4 contacting the sealing plug 3 are both wedge-shaped end surfaces.

In this embodiment, the sealing plug 3 is made of a polyurethane material, and the shore hardness is 70-80.

In this embodiment, the material of the pressing limiting block 2 and the fixing block 4 is copper.

The utility model discloses a working principle of utensil is assisted in leak testing shutoff of oil duct unthreaded hole is as follows:

the tightening wrench is used for tightening the tightening nut, and the connecting nut and the tightening limiting block generate moderate deformation when exerting pressing force on the sealing plug, and generate radial deformation to realize sealing;

the compressing limiting block penetrates through the connecting screw, the limiting block limits the blocking position of the sealing plug in the unthreaded hole on the outer end face of the workpiece, and the limiting block, the fixing block and the sealing plug are in contact with each other through the wedge-shaped end face to extrude the sealing plug to be sealed.

The plugging assistive device adopts the screw as a support to ensure that the sealing plug generates proper deformation when the connecting nut compresses the limiting block to apply pressing force, thereby completing the sealing performance, having convenient operation and good sealing effect, and having low manufacturing cost.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The auxiliary tool for leak testing and plugging of the oil duct unthreaded hole is characterized by comprising a screwing nut (1), a pressing limiting block (2), a fixed block (4), a sealing plug (3) and a connecting screw (5), wherein the connecting screw (5) is inverted in the oil duct unthreaded hole, the fixed block (4), the sealing plug (3), the pressing limiting block (2) and the screwing nut (1) are sequentially sleeved on the connecting screw (5) from bottom to top, the fixed block (4) and the sealing plug (3) are both positioned in the oil duct unthreaded hole, and the pressing limiting block (2) is positioned at the end part of the oil duct unthreaded hole and used for limiting the plugging position of the sealing plug in the unthreaded hole; the tightening nut (1) is located outside the oil duct unthreaded hole.

2. The leakage testing and plugging assistive device for the oil duct unthreaded hole is characterized in that the pressing limiting block (2) is of a T-shaped structure, the lower section of the T-shaped structure is located in the oil duct unthreaded hole, and the upper section of the T-shaped structure is located on the outer end face of the oil duct unthreaded hole and used for limiting the plugging position of the sealing plug in the unthreaded hole.

3. The oil duct unthreaded hole leakage-testing plugging assistive device of claim 1, wherein the inner diameters of the tightening nut (1), the pressing limiting block (2), the fixing block (4) and the sealing plug (3) are all provided with internal threads which are matched with external threads of the connecting screw (5) to realize tight fit.

4. The leakage-testing plugging aid for the oil duct unthreaded hole as claimed in claim 2, wherein the outer diameter of the lower section of the T-shaped structure of the pressing limiting block (2) and the outer diameter of the fixing block (4) are both smaller than the diameter of the oil duct unthreaded hole.

5. The leakage testing and plugging assistive device for the oil passage unthreaded hole as claimed in claim 1, wherein the excircle diameter of the sealing plug (3) is 0.1mm-0.2mm smaller than the diameter of the oil passage unthreaded hole.

6. The oil passage unthreaded hole leakage-testing and plugging assistive device as claimed in claim 2, wherein the lower section of the T-shaped structure of the pressing limiting block (2) and the end surface of the fixed block (4) contacting the sealing plug (3) are both wedge-shaped end surfaces.

7. The leakage test plugging assistive device for the oil passage unthreaded hole is characterized in that the sealing plug (3) is made of a polyurethane material and has the Shore hardness of 70-80.

8. The leakage-testing plugging assistive device for the oil passage unthreaded hole according to claim 1, wherein the pressing limiting block (2) and the fixing block (4) are made of copper.