Turbine shell blanking cap with high sealing performance

Abstract

The utility model relates to the technical field of turbine shell blanking caps, in particular to a high-sealing-performance turbine shell blanking cap which comprises a turbine shell port, and a multi-directional extrusion sealing blanking cap is installed on the turbine shell port in a screwing mode. The multi-directional extrusion sealing plug cover comprises a cover cap, an extrusion transmission bolt rotationally installed in the cover cap, an extrusion block arranged at the tail end of the extrusion transmission bolt and a high-temperature-resistant sealing rubber concave pad installed on the cover cap, the extrusion block is connected with the high-temperature-resistant sealing rubber concave pad through a telescopic rod, and a sealing cap is installed on the upper surface of the top end of the cover cap in a clamped and embedded mode. According to the turbine shell blanking cap, the structures are matched with one another, so that the high-temperature-resistant sealing rubber concave pad can be extruded and sealed in multiple directions, and the sealing performance of the turbine shell blanking cap is greatly improved.

Description

Technical Field

[0001] This utility model relates to a turbine housing plug, and more particularly to a turbine housing plug with high sealing performance, belonging to the technical field of turbine housing plugs. Background Art

[0002] The turbine housing plug is an important component of a turbocharger. It is usually located at the exhaust end of the turbine housing and is used to seal the exhaust port. In some cases, it is connected to the exhaust manifold. The design and manufacture of the turbine housing plug must take into account harsh operating conditions such as high temperature, high pressure, and corrosive gases. Therefore, it is usually made of high-temperature and corrosion-resistant materials, such as stainless steel and special alloys.

[0003] Turbine housing plugs are typically used to seal exhaust ports, so they require extremely high sealing performance. To improve sealing, existing turbine housing plugs are usually installed with a sealing gasket between the turbine housing plug and the turbine housing port and then squeezed to seal. However, unidirectional squeezing seals are difficult to achieve a full-range sealing effect, so the sealing performance of turbine housing plugs is often poor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a turbine housing plug with high sealing performance that can perform multi-directional compression sealing of high-temperature resistant sealing rubber concave gaskets.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A high-sealing turbine housing plug includes a turbine housing port, on which a multi-directional compression sealing plug is screwed. The multi-directional compression sealing plug includes a cap, a compression drive pin rotatably installed in the cap, a compression block disposed at the end of the compression drive pin, and a high-temperature resistant sealing rubber concave gasket installed on the cap. The compression block and the high-temperature resistant sealing rubber concave gasket are connected by a telescopic rod, and a sealing cap is fitted into the upper surface of the top of the cap.

[0007] Furthermore, the extrusion drive bolt includes a drive bolt, a hexagonal groove formed on the upper surface of the drive bolt nut, and a manual lever block provided on the side of the drive bolt nut. The lower surface of the extrusion block is provided with a first receiving groove that extends into the drive bolt.

[0008] Furthermore, the cap includes a first cover buckle and an installation connecting collar sleeved on the outer side of the bottom of the first cover buckle, and the high-temperature resistant sealing rubber concave gasket is fixedly installed on the lower surface of the first cover buckle by bolts.

[0009] Furthermore, a first engagement groove is provided on the surface of the turbine housing port, and a first engagement protrusion adapted to the first engagement groove is provided on the inner wall of the mounting connecting collar.

[0010] Furthermore, the upper surface of the first cover buckle is provided with a rotating cavity, and the lower surface of the first cover buckle is provided with a second storage groove. The rotating cavity and the second storage groove are separated by a partition.

[0011] Furthermore, the partition plate has a screw-in slot, and the transmission bolt is adapted to the screw-in slot.

[0012] Furthermore, the telescopic rod includes a connecting rod disposed on the high-temperature resistant sealing rubber concave pad and a connecting sleeve disposed at the top of the inner cavity of the first storage groove, the connecting sleeve being nested on the connecting rod.

[0013] Furthermore, the sealing cap has embedded rubber rings on its upper and lower bottom surfaces, and the first cover buckle has an embedded mounting groove on its upper surface that is compatible with the embedded rubber rings.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention can achieve multi-directional compression and sealing of the high-temperature resistant sealing rubber concave gasket by the cooperation of the cap, extrusion transmission bolt, extrusion block and high-temperature resistant sealing rubber concave gasket in the sealing plug, which greatly improves the sealing performance of the turbine housing plug. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall internal cross-section of this utility model;

[0017] Figure 2 This is a schematic diagram of the appearance of the cap of this utility model;

[0018] Figure 3 This is a schematic diagram of the swivel slot structure of this utility model;

[0019] Figure 4 This is a schematic half-sectional view of the entire utility model;

[0020] Figure 5 This is a schematic diagram of the overall appearance of this utility model.

[0021] In the diagram, 1. Turbine housing port; 2. Multi-directional extrusion sealing plug; 3. Cap; 4. Extrusion drive bolt; 5. Extrusion block; 6. High-temperature resistant sealing rubber concave gasket; 7. Telescopic rod; 8. Sealing cap; 9. Drive bolt; 10. Hexagonal groove; 11. Manual lever; 12. First storage slot; 13. First cover buckle; 14. Mounting connecting collar; 15. First engagement groove; 16. First engagement protrusion; 17. Rotating cavity; 18. Second storage slot; 19. Partition plate; 20. Engagement slot hole; 21. Connecting rod; 22. Connecting sleeve; 23. Embedded rubber ring; 24. Embedded mounting groove. DETAILED DESCRIPTION

[0022] The technical solution of this utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-5 As shown, the high-sealing turbine housing plug provided in this embodiment includes a turbine housing port 1, on which a multi-directional compression sealing plug 2 is screwed and installed. The multi-directional compression sealing plug 2 includes a cap 3, a compression drive bolt 4 rotatably installed in the cap 3, a compression block 5 disposed at the end of the compression drive bolt 4, and a high-temperature resistant sealing rubber concave pad 6 installed on the cap 3. The compression block 5 and the high-temperature resistant sealing rubber concave pad 6 are connected by a telescopic rod 7. A sealing cap 8 is embedded in the upper surface of the top of the cap 3. The turbine housing port 1 facilitates the connection of various working pipes, ensuring the normal operation of the internal parts of the turbine housing; the multi-directional compression sealing plug 2 is used to perform multi-directional compression sealing on the port and inner wall of the turbine housing port 1, improving the sealing effect; the cap 3 is used to cover the turbine housing port 1; the compression drive bolt 4 is used to push the compression block 5 into the groove of the high-temperature resistant sealing rubber concave pad 6; the compression block 5 is used to enter the groove of the high-temperature resistant sealing rubber concave pad 6, so that the compression block 5 and the inner wall of the turbine housing port 1 simultaneously compress the high-temperature resistant sealing rubber concave pad 6, achieving the function of the multi-directional compression sealing plug 2; the telescopic rod 7 is used to connect the compression block 5 and the high-temperature resistant sealing rubber concave pad 6 together, and at the same time, when the compression drive bolt 4 rotates upward, it will pull the high-temperature resistant sealing rubber concave pad 6 to a certain extent to shrink, making it easier to better seal the multi-directional compression sealing plug 2 on the turbine housing port 1; the sealing cap 8 is used to cover and seal the rotating cavity 17 to prevent dust or foreign objects from entering the rotating cavity 17.

[0024] Furthermore, such as Figure 1 and Figure 4As shown, the extrusion drive bolt 4 includes a drive bolt 9, a hexagonal groove 10 formed on the upper surface of the nut of the drive bolt 9, and a manual lever 11 set on the side of the nut of the drive bolt 9. The lower surface of the extrusion block 5 has a first storage groove 12 that extends into the drive bolt 9. The drive bolt 9 is used to push the extrusion block 5 to move upward or downward, so that the extrusion block 5 enters into or detaches from the high-temperature resistant sealing rubber concave pad 6. The hexagonal groove 10 is used to tighten and fix the drive bolt 9 with a tool. The manual lever 11 facilitates manual tightening of the drive bolt 9. The first storage groove 12 is used to store the telescopic rod 7.

[0025] Furthermore, such as Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the cap 3 includes a first cover buckle 13 and an installation connecting collar 14 sleeved on the outer side of the bottom of the first cover buckle 13. The high-temperature resistant sealing rubber concave gasket 6 is fixedly installed on the lower surface of the first cover buckle 13 by bolts. The first cover buckle 13 is used to support and fix the installation connecting collar 14, and the installation connecting collar 14 is used to screw the cap 3 onto the turbine housing port 1.

[0026] Furthermore, such as Figure 1 and Figure 3 As shown, a first engagement groove 15 is provided on the surface of the turbine housing port 1, and a first engagement protrusion 16 adapted to the first engagement groove 15 is provided on the inner wall of the mounting connecting collar 14; the first engagement groove 15 and the first engagement protrusion 16 are used to screw the multi-directional extrusion sealing plug 2 onto the turbine housing port 1.

[0027] Furthermore, such as Figure 1 and Figure 4 As shown, the upper surface of the first cover buckle 13 has a rotating cavity 17, and the lower surface of the first cover buckle 13 has a second storage groove 18. The rotating cavity 17 and the second storage groove 18 are separated by a partition 19. The rotating cavity 17 is used to squeeze the cap of the transmission bolt 4 to rotate. The second storage groove 18 is used to store the extrusion block 5. The partition 19 is used to separate the rotating cavity 17 and the second storage groove 18, and at the same time, it is used to support the extrusion transmission bolt 4.

[0028] Furthermore, such as Figure 1 , Figure 3 as well as Figure 4 As shown, a screw-in slot 20 is provided in the partition 19, and the transmission bolt 9 is adapted to the screw-in slot 20; the screw-in slot 20 is used to screw the transmission bolt 9 into the partition 19.

[0029] Furthermore, such as Figure 1 and Figure 4As shown, the telescopic rod 7 includes a connecting rod 21 disposed on the high-temperature resistant sealing rubber concave pad 6 and a connecting sleeve 22 disposed at the top of the inner cavity of the first receiving groove 12. The connecting sleeve 22 is nested on the connecting rod 21. The connecting rod 21 and the connecting sleeve 22 cooperate with each other to drive the high-temperature resistant sealing rubber concave pad 6 to move upward to a certain extent when the extrusion block 5 moves upward, so as to facilitate the high-temperature resistant sealing rubber concave pad 6 to better enter the turbine housing port 1.

[0030] Furthermore, such as Figure 1 , Figure 2 as well as Figure 3 As shown, the sealing cap 8 has embedded rubber rings 23 on its upper and lower bottom surfaces, and the first cover buckle 13 has an embedded mounting groove 24 on its upper surface that is compatible with the embedded rubber rings 23. The embedded rubber rings 23 and the embedded mounting groove 24 cooperate with each other to snap the sealing cap 8 into the surface of the first cover buckle 13.

[0031] like Figures 1-5 As shown, the principle of the high-sealing turbine housing plug provided in this embodiment is as follows: When using the device, the sealing cap 8 at the top of the cap 3 should be removed first, and then the extrusion drive bolt 4 should be manually twisted upward so that the extrusion block 5 moves upward into the first receiving groove 12. The extrusion block 5 is dislodged from the groove on the high-temperature resistant sealing rubber concave pad 6. Then, under the pull of the telescopic rod 7, the high-temperature resistant sealing rubber concave pad 6 deforms and rises upward.

[0032] The multi-directional compression sealing cap 2 is rotated and installed on the turbine housing port 1 to be sealed under the action of the installation connecting collar 14. Then, the compression drive bolt 4 is manually twisted downward, so that the compression block 5 moves downward into the groove on the high-temperature resistant sealing rubber concave pad 6. Alternatively, a tool can be inserted into the hexagonal groove 10 on the drive bolt 9 for tightening and fixing, so that the compression block 5 will compress the high-temperature resistant sealing rubber concave pad 6. The compressed high-temperature resistant sealing rubber concave pad 6 will perform multi-directional compression sealing on the port and inner wall of the turbine housing port 1. Finally, the removed sealing cap 8 is put back on the top of the cap 3.

[0033] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein. Any modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A turbine housing plug with high sealing performance, comprising a turbine housing port (1), characterized in that: A multi-directional extrusion sealing plug (2) is screwed onto the turbine housing port (1). The multi-directional extrusion sealing plug (2) includes a cap (3), an extrusion drive bolt (4) rotatably installed in the cap (3), an extrusion block (5) set at the end of the extrusion drive bolt (4), and a high-temperature resistant sealing rubber concave pad (6) installed on the cap (3). The extrusion block (5) and the high-temperature resistant sealing rubber concave pad (6) are connected by a telescopic rod (7). A sealing cap (8) is fitted onto the top surface of the cap (3).

2. The turbine housing plug with high sealing performance according to claim 1, characterized in that: The extrusion drive bolt (4) includes a drive bolt (9), a hexagonal groove (10) formed on the upper surface of the nut of the drive bolt (9), and a manual lever (11) provided on the side of the nut of the drive bolt (9). The lower surface of the extrusion block (5) is provided with a first receiving groove (12) that extends into the drive bolt (9).

3. A turbine housing plug with high sealing performance according to claim 2, characterized in that: The cap (3) includes a first cap buckle (13) and an installation connecting collar (14) sleeved on the outer side of the bottom of the first cap buckle (13). The high temperature resistant sealing rubber concave pad (6) is fixedly installed on the lower surface of the first cap buckle (13) by bolts.

4. A turbine housing plug with high sealing performance according to claim 3, characterized in that: The turbine housing port (1) has a first engagement groove (15) on its surface, and the inner wall of the mounting connecting collar (14) has a first engagement protrusion (16) that is adapted to the first engagement groove (15).

5. A turbine housing plug with high sealing performance according to claim 3, characterized in that: The first cover buckle (13) has a rotating cavity (17) on its upper surface and a second storage groove (18) on its lower surface. The rotating cavity (17) and the second storage groove (18) are separated by a partition (19).

6. A turbine housing plug with high sealing performance according to claim 5, characterized in that: The partition (19) has a screw-in slot (20) and the transmission bolt (9) is adapted to the screw-in slot (20).

7. A turbine housing plug with high sealing performance according to claim 2, characterized in that: The telescopic rod (7) includes a connecting rod (21) disposed on the high-temperature resistant sealing rubber concave pad (6) and a connecting sleeve (22) disposed at the top of the inner cavity of the first storage groove (12). The connecting sleeve (22) is nested on the connecting rod (21).

8. A turbine housing plug with high sealing performance according to claim 3, characterized in that: The sealing cap (8) has embedded rubber rings (23) on its upper and lower bottom surfaces, and the first cover buckle (13) has an embedded mounting groove (24) on its upper surface that is compatible with the embedded rubber rings (23).

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