Discontinuous oil passage cavity oil pressure experiment connecting device

Abstract

Provided is a discontinuous oil passage cavity oil pressure experiment connecting device, both ends of the connecting pipe are respectively provided with sealing joint one and sealing joint two in hollow tubular structure, and the inner ends of the sealing joint one and the sealing joint two are respectively in sealing communication with the connecting pipe two ends with adjustable length, and the length of the sealing joint one and the sealing joint two is adjusted to be in sealing connection with the oil passage cavity one and the oil passage cavity two orifices respectively through the extending ends, so that the sealing connection of the two discontinuous oil passage cavity one and the oil passage cavity two is realized. The utility model solves the defects that the period is long, the time and labor are consumed, and the cost is high when the sectional type sealing pressure test of the oil passage cavity which is communicated but discontinuous in the complex box type part of the diesel engine, realizes the communication of the originally discontinuous oil passage cavity, does not need sectional test, can complete the pressure test of all the connected cavities at one time, reduces the test steps, shortens the single test period, reduces the consumption of materials and human resources, and improves the production efficiency of the box type part.

Description

Technical Field

[0001] This utility model belongs to the field of diesel engine processing technology, specifically relating to a hydraulic pressure test connection device for a discontinuous oil passage cavity. Background Technology

[0002] In complex housing components of diesel engines, there are often interconnected but discontinuous cavities that require sealing pressure tests. Traditional testing methods can only increase sealing points and conduct multiple tests in segments, making it impossible to complete the pressure test for all connected cavities in one go. Segmented testing requires sealing, pressurizing, holding, testing, and unsealing each cavity separately. Given the large number of cavities in these housing components and the long testing cycle, production efficiency is severely impacted. Furthermore, each segmented test requires separate preparation of sealing components, resulting in significant material and manpower costs, further hindering housing production efficiency. Therefore, improvements are necessary to address these issues. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a connection device for hydraulic pressure testing of discontinuous oil passage cavities. This device uses adjustable-length connecting pipes with sealing joints 1 and 2 extending from both ends of two discontinuous oil passage cavities (Cavity 1 and Cavity 2), respectively, to achieve a sealed connection between these two cavities. This solves the problem of inconsistent sealing pressure testing of segmented oil passage cavities that are connected but discontinuous in complex diesel engine housings. Overcoming the drawbacks of long testing periods, high time and labor costs, this device connects previously discontinuous oil passage cavities, eliminating the need for segmented testing. It can complete pressure tests on all connected cavities in one go, reducing testing steps and avoiding the multiple sealing, pressurizing, pressure holding, testing, and unsealing processes involved in traditional segmented testing. This shortens the single test cycle, reduces material and manpower input, and helps improve the production efficiency of box-type parts. The adjustable extension length of the sealing joint can adapt to discontinuous oil passage cavities with different spacing or sizes, enhancing the versatility and practicality of the device under different operating conditions.

[0004] The technical solution adopted in this utility model is: a hydraulic test connection device for discontinuous oil passage cavities, including a connecting pipe disposed between two discontinuous oil passage cavities, namely, oil passage cavity one and oil passage cavity two. The two ends of the connecting pipe are respectively provided with a hollow tubular sealing joint one and a sealing joint two. The inner ends of sealing joint one and sealing joint two are respectively sealed and connected to the two ends of the connecting pipe with adjustable extension lengths. By adjusting the extension length of sealing joint one and sealing joint two until their extension ends are respectively sealed and connected to the orifices of oil passage cavity one and oil passage cavity two, the sealing connection of the two discontinuous oil passage cavities is realized.

[0005] The inner hole of the connecting pipe is a stepped hole formed by guide holes at both ends and threaded holes with a diameter smaller than the guide holes that connect the guide holes at both ends. The sealing joint 1 adopts a hollow stepped pipe including a threaded sleeve section, a sealing guide section and a sealing head. The external thread on the threaded sleeve section is adapted to the threaded hole, and the sealing guide section is adapted to the guide hole. It is sealed by contacting the guide hole wall with the O-ring seal 2 installed on the outer circumferential wall of the sealing guide section. The sealing head is adapted to the oil passage cavity 1, and the O-ring seal 1 installed on the outer wall of the sealing head is sealed by contacting the hole wall of the oil passage cavity 1.

[0006] Furthermore, two parallel planes are formed on the outer wall of the middle part of the connecting pipe to facilitate the rotation of the connecting pipe.

[0007] Furthermore, a hexagonal part is provided between the sealing guide section and the sealing head to facilitate the rotation of the sealing joint, and the hexagonal part is located outside the oil passage cavity.

[0008] Furthermore, each of the six sides of the outer wall is provided with a countersunk hole adapted to the lever.

[0009] Furthermore, the structures of the first and second adjusting sealing joints are the same, but the screw sleeve sections have opposite rotation directions. The extension lengths of the first and second adjusting sealing joints are adjusted by rotating the connecting pipe.

[0010] Advantages of this utility model compared to the prior art:

[0011] 1. This technical solution extends adjustable-length sealing pipes with sealing joints 1 and 2 from both ends of the two discontinuous oil passage cavities 1 and 2, respectively, and seals joints 1 and 2 to oil passage cavities 1 and 2, respectively, thus achieving a sealed connection between the two discontinuous oil passage cavities 1 and 2. This solves the problem of long cycle, time-consuming, labor-intensive and costly segmented sealing pressure tests for connected but discontinuous oil passage cavities in complex diesel engine housing parts. It connects the originally discontinuous oil passage cavities, eliminating the need for segmented tests and enabling pressure tests of all connected cavities to be completed in one go, reducing test steps.

[0012] 2. This technical solution avoids the process of sealing, pressurizing, holding pressure, testing, and unsealing multiple times in traditional segmented testing, shortens the single test cycle, reduces material and manpower input, and helps improve the production efficiency of box-type parts;

[0013] 3. This technical solution uses connecting pipes that are threadedly connected to sealing joint one and sealing joint two, while sealing with O-ring two through contact with the guide hole wall. Sealing joint one and sealing joint two are respectively adapted to oil passage cavity one and oil passage cavity two and sealed by O-ring one, forming a multi-seal structure. This can effectively prevent leakage during the oil pressure test and ensure the sealing performance of the connection. Moreover, under the guiding action of the sealing guide section and the guide hole, it can be ensured that sealing joint one and sealing joint two will not shift during the extension length adjustment, ensuring the accuracy and stability of the assembly, and thus ensuring the normal operation of the overall device.

[0014] 4. The extension lengths of sealing joint one and sealing structure two in this technical solution are easy to adjust and simple to operate. It is convenient to adjust the connection status of sealing joint one and sealing joint two with oil passage cavity one and oil passage cavity two respectively according to the actual situation, so as to meet different sealing connection requirements. The extension length of the sealing joint is adjustable, which can adapt to discontinuous oil passage cavities with different spacing or size, thereby enhancing the versatility and practicality of the device under different working conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the utility model in use;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 for Figure 1 Sectional view of AA. Detailed Implementation

[0018] The following will be based on the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Discontinuous oil passage cavity hydraulic test connection device, such as Figure 1-2 As shown, the structure includes a connecting pipe 3 located between two discontinuous oil passage cavities 1 and 2. Both ends of the connecting pipe 3 are respectively provided with hollow tubular sealing joints 4 and 5. The inner ends of sealing joints 4 and 5 are respectively connected to the ends of the connecting pipe 3 with adjustable extension lengths. By adjusting the extension lengths of sealing joints 4 and 5 until their extension ends are respectively connected to the orifices of oil passage 1 and oil passage 2, a sealed connection between the two discontinuous oil passage cavities 1 and 2 is achieved. In the above structure, sealing joints 4 and 5 are installed at both ends of the discontinuous oil passage cavities 1 and 2 with adjustable extension lengths. The connecting pipe 3 of the sealing joint 2 5, and the sealing joint 1 4 and sealing joint 2 5 respectively seal and connect with oil passage cavity 1 1 and oil passage cavity 2 2, realizing the sealed connection of two discontinuous oil passage cavities 1 1 and 2 2. This solves the defects of long cycle, time-consuming, labor-intensive and costly segmented sealing pressure test of connected but discontinuous oil passage cavities in complex housing parts of diesel engines. It realizes the connection of the originally discontinuous oil passage cavities, eliminating the need for segmented testing, and can complete the pressure test of all connected cavities at one time, reducing test steps; it avoids the process of sealing, pressurizing, holding pressure, testing and unsealing in traditional segmented testing, shortens the single test cycle, reduces material and labor input, and helps to improve the production efficiency of housing parts;

[0022] The specific structure of the connecting pipe 3 is as follows: The inner hole of the connecting pipe 3 is a stepped hole formed by guide holes 3-1 at both ends and threaded holes 3-2 with a diameter smaller than the guide holes 3-1 and connecting the guide holes 3-1 at both ends. The sealing joint 4 adopts a hollow stepped pipe including a threaded sleeve section 4-1, a sealing guide section 4-2 and a sealing head 4-3. The external thread on the threaded sleeve section 4-1 is adapted to the threaded hole 3-2, and the sealing guide section 4-2 is adapted to the guide hole 3-1. It is sealed by contacting the guide hole 3-1 through an O-ring 7 installed on the outer circumferential wall of the sealing guide section 4-2. The sealing head 4-3 is adapted to the oil passage cavity 1, and the O-ring 6 installed on the outer wall of the sealing head 4-3 is sealed by contacting the oil passage cavity 1.

[0023] In the above structure, the connecting pipe 3 is threadedly connected to sealing joint 4 and sealing joint 5 respectively, while the O-ring 7 seals against the guide hole 3-1. Sealing joint 4 and sealing joint 5 are respectively fitted into oil passage cavity 1 and oil passage cavity 2 and sealed by O-ring 6, forming a multi-seal structure. This effectively prevents leakage during the oil pressure test, ensuring the sealing performance of the connection. Furthermore, under the guidance of the sealing guide section 4-2 and the guide hole 3-1, it is ensured that sealing joint 4 and sealing joint 5 will not shift during the extension length adjustment process, guaranteeing the accuracy and stability of the assembly, and thus ensuring the normal operation of the entire device. The extension length adjustment of sealing joint 4 and sealing joint 5 is convenient and easy to operate, allowing for adjustment of the connection status between sealing joint 4 and sealing joint 5 and oil passage cavity 1 and oil passage cavity 2 respectively according to actual conditions, meeting different sealing connection requirements. The adjustable extension length of the sealing joints can adapt to discontinuous oil passage cavities with different spacing or sizes, enhancing the versatility and practicality of the device under different working conditions.

[0024] Two parallel planes are formed on the outer wall of the middle part of the connecting pipe 3 to facilitate the rotation of the connecting pipe 3; the two parallel planes make it easier to clamp the connecting pipe 3 with tools such as wrenches, so as to rotate the connecting pipe 3 more effortlessly and stably, and to facilitate the adjustment of the extension length of the sealing joint 1 4 and the sealing joint 2 5, thereby improving the convenience and efficiency of operation.

[0025] A hexagonal 4-4 is provided between the sealing guide section 4-2 and the sealing head 4-3 to facilitate the rotation of the sealing joint 4, and the hexagonal 4-4 is located outside the oil passage cavity 1; specifically, each side of the outer wall of the hexagonal 4-4 is provided with a countersunk hole adapted to the wrench; the hexagonal 4-4 is located outside the oil passage cavity 1, which facilitates the use of wrenches and other tools to clamp the rotating sealing joint 4.

[0026] The structures of the adjusting sealing joint 4 and the sealing joint 5 are the same, but the rotation direction of the threaded sleeve section 4-1 is opposite. The extension length of the adjusting sealing joint 4 and the sealing joint 5 is adjusted by rotating the connecting pipe 3.

[0027] This technical solution features a simple structure and novel design, enabling the sealed connection of two discontinuous oil passage cavities. It eliminates the need for segmented testing, allowing for the completion of pressure tests on connected cavities in a single step. This reduces testing steps, improves efficiency, and provides excellent sealing performance. Multiple seals ensure test reliability, and precise adjustments facilitate adaptation to different working conditions, enhancing versatility.

[0028] like Figure 1 , 3 As shown, in this scheme, the box, number 8 and oil passage cavity 2 are sealed with plugs using the company's patented technology CN203442410U to seal the light holes. The orifices at positions 9 and 10 are sealed with external hexagonal plugs. The orifice at position 11 is a special pipe joint connection seal at the water pressure test inlet. The continuous oil passage cavity 1 and oil passage cavity 2 are sealed and connected using this structure.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic pressure test connection device for discontinuous oil passage cavities, characterized in that: The system includes a connecting pipe (3) located between two discontinuous oil passage cavities, namely, a first (1) and a second (2). The two ends of the connecting pipe (3) are respectively provided with a hollow tubular sealing joint (4) and a second (5). The inner ends of the first (4) and the second (5) are respectively connected to the two ends of the connecting pipe (3) with adjustable extension lengths. By adjusting the extension length of the first (4) and the second (5) until their extension ends are respectively connected to the orifices of the first (1) and the second (2) oil passage cavities, the two discontinuous oil passage cavities, namely, the first (1) and the second (2), are sealed together.

2. The hydraulic test connection device for discontinuous oil passage cavity according to claim 1, characterized in that: The inner hole of the connecting pipe (3) is a stepped hole formed by the guide holes (3-1) at both ends and the threaded hole (3-2) with a diameter smaller than the guide hole (3-1) and connecting the guide holes (3-1) at both ends. The sealing joint (4) adopts a hollow stepped pipe including a threaded sleeve section (4-1), a sealing guide section (4-2) and a sealing head (4-3). The external thread on the threaded sleeve section (4-1) is adapted to the threaded hole (3-2), and the sealing guide section (4-2) is adapted to the guide hole (3-1). It is sealed by contacting the guide hole (3-1) wall with the O-ring seal (7) installed on the outer circumferential wall of the sealing guide section (4-2). The sealing head (4-3) is adapted to the oil passage cavity (1), and the O-ring seal (6) installed on the outer wall of the sealing head (4-3) is sealed by contacting the oil passage cavity (1) wall.

3. The hydraulic test connection device for discontinuous oil passage cavity according to claim 2, characterized in that: Two parallel planes are formed on the outer wall of the middle part of the connecting pipe (3) to facilitate the rotation of the connecting pipe (3).

4. The hydraulic test connection device for discontinuous oil passage cavity according to claim 3, characterized in that: A hexagonal section (4-4) is provided between the sealing guide section (4-2) and the sealing head (4-3) to facilitate the rotation of the sealing joint (4), and the hexagonal section (4-4) is located outside the oil passage cavity (1).

5. The hydraulic test connection device for discontinuous oil passage cavity according to claim 4, characterized in that: Each of the six sides (4-4) has countersunk holes on its outer wall that are adapted to the lever.

6. The hydraulic test connection device for discontinuous oil passage cavity according to claim 2, 3, 4, or 5, characterized in that: The structures of the first (4) and the second (5) of the adjusting sealing joint are the same, but the rotation direction of the threaded sleeve section (4-1) is opposite. The extension length of the first (4) and the second (5) of the adjusting sealing joint is adjusted by rotating the connecting pipe (3).

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