L-shaped ring and bottom plate pressing tool

Abstract

An annular plate is coaxially arranged on one side of the bottom plate, a plurality of internal thread seats are evenly arranged at the end, away from the bottom plate, of the annular plate, the L-shaped ring is attached to the side, provided with the internal thread seats, of the bottom plate, and an annular pressing plate is connected with the internal thread seats in a fastened mode through bolts. An annular heat insulation plate is arranged at the outer end of an annular pressing plate through a first annular groove, meanwhile, an annular sealing limiting plate is limited and pressed through the first annular groove, the annular sealing limiting plate achieves installation of an annular rubber sealing plate through a second annular groove, and an L-shaped ring is pressed through the annular rubber sealing plate; meanwhile, a second inner side limiting ring of the annular sealing limiting plate is directly pressed on the surface of the bottom plate, it is guaranteed that internal air cannot enter the position between the L-shaped ring and the bottom plate, the sealing performance of the L-shaped ring and the bottom plate is further improved, the situation of air leakage cannot occur after long-term use, the L-shaped ring does not need to be perforated, and therefore the sealing performance of the L-shaped ring is improved. The processing difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology for L-shaped rings and bottom plates in chambers, specifically to a tooling for pressing L-shaped rings and bottom plates together. Background Technology

[0002] A tunnel is a horizontal tunnel with a large cross-section and a short length that does not directly connect to the surface. When a tunnel is used for power storage, the sealing performance of the bottom plate at the end of the tunnel needs to be ensured. Its structure consists of an L-shaped rubber ring on the bottom plate. The inner ring of this L-shaped ring needs to seal with the bottom plate, and the outer ring of the L-shaped ring needs to seal with the rubber lining of the tunnel. The traditional method of sealing the L-shaped ring with the bottom plate is to use adhesive bonding, and then use bolts to press an annular pressure plate onto the L-shaped ring to ensure the seal between the L-shaped ring and the bottom plate. However, this method requires opening holes in the L-shaped ring and the bottom plate, which increases the processing difficulty and causes the L-shaped ring to be pulled by pressure changes in the tunnel after the holes are opened, resulting in a decrease in the sealing performance at the opening of the L-shaped ring. Therefore, an improved technology is urgently needed to solve this problem existing in the current technology. Utility Model Content

[0003] The purpose of this invention is to provide a tooling for pressing an L-shaped ring and a base plate together, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an L-shaped ring and base plate pressing fixture, comprising a base plate, an L-shaped ring, and a pressing fixture assembly; the pressing fixture assembly includes an annular pressing plate, an annular plate, an internal thread seat, an annular sealing and limiting plate, an annular rubber sealing plate, an annular heat insulation plate, and bolts; an annular plate is coaxially arranged on one side of the base plate; a plurality of internal thread seats are evenly arranged on the end of the annular plate away from the base plate; the L-shaped ring is attached to the side of the base plate where the internal thread seats are located; the annular pressing plate is fastened to the internal thread seats by bolts; a first inner limiting ring and a first outer limiting ring are arranged on the periphery of the annular pressing plate near the end of the base plate; the annular pressing plate forms a first annular groove through the first inner limiting ring and the first outer limiting ring. The annular sealing limiting plate is disposed in a first annular groove at one end away from the bottom plate. An annular heat insulation plate is also disposed in the first annular groove. The annular heat insulation plate is pressed into the first annular groove by the annular sealing limiting plate. A second inner limiting ring and a second outer limiting ring are disposed on the outer periphery of the annular sealing limiting plate near the bottom plate. The annular sealing limiting plate forms a second annular groove through the second inner limiting ring and the second outer limiting ring. The length of the second outer limiting ring is less than that of the second inner limiting ring. The second inner limiting ring is pressed against the surface of the bottom plate. An annular rubber sealing plate is disposed in the second annular groove. The annular rubber sealing plate is pressed against the surface of the inner ring of the L-shaped ring. The second outer limiting ring is pressed against the surface of the inner ring of the L-shaped ring.

[0005] Preferably, the L-shaped ring and base plate pressing fixture provided by this utility model has an inner diameter greater than the outer diameter of the second inner limiting ring, and the inner diameter of the second inner limiting ring is greater than the outer diameter of the annular plate.

[0006] Preferably, the present invention provides an L-shaped ring and base plate pressing fixture, wherein the annular pressure plate is evenly provided with a plurality of through holes, the positions of the through holes and the internal thread seat are one-to-one, and the bolt passes through the through holes provided in the annular pressure plate.

[0007] Preferably, the L-shaped ring and base plate pressing fixture provided by this utility model includes a washer between the head of the bolt and the annular pressure plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] (1) The annular pressure plate is fastened to the internal thread seat by bolts. The outer end of the annular pressure plate is provided with an annular heat insulation plate through the first annular groove. At the same time, the annular sealing limit plate is limited and pressed through the first annular groove. The annular sealing limit plate is installed with the annular rubber sealing plate through the second annular groove. The annular rubber sealing plate is pressed to press the L-ring, which greatly improves the sealing performance between the L-ring and the base plate. At the same time, the second inner limit ring of the annular sealing limit plate directly presses the surface of the base plate, ensuring that the internal air cannot enter between the L-ring and the base plate, further improving the sealing performance between the L-ring and the base plate. There will be no air leakage after long-term use.

[0010] (2) The overall assembly method is simple and convenient. No holes are needed for the L-shaped ring and the base plate, which reduces the processing difficulty. Attached Figure Description

[0011] Figure 1 This is a schematic cross-sectional view of the present invention.

[0012] Figure 2 For the appendix Figure 1 Enlarged structural diagram of point A in the middle;

[0013] Figure 3 This is a front view structural diagram of the present invention;

[0014] Figure 4 This is a schematic diagram of a ring-shaped pressure plate structure;

[0015] Figure 5 This is a schematic diagram of the annular sealing limit plate structure.

[0016] In the diagram: 1. Base plate; 2. L-shaped ring; 3. Annular pressure plate; 4. Annular plate; 5. Internal thread seat; 6. Annular sealing and limiting plate; 7. Annular rubber sealing plate; 8. Annular heat insulation plate; 9. Bolt; 10. First inner limiting ring; 11. First outer limiting ring; 12. First annular groove; 13. Second inner limiting ring; 14. Second outer limiting ring; 15. Second annular groove; 16. Through hole; 17. Washer. Detailed Implementation

[0017] The technical solution of this 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 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.

[0018] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-5This utility model provides a technical solution: an L-shaped ring and a base plate pressing fixture, including a base plate 1, an L-shaped ring 2, and a pressing fixture assembly; the pressing fixture assembly includes an annular pressure plate 3, an annular plate 4, internal thread seats 5, an annular sealing and limiting plate 6, an annular rubber sealing plate 7, an annular heat insulation plate 8, and bolts 9. An annular plate 4 is coaxially arranged on one side of the base plate 1, and a plurality of internal thread seats 5 are evenly arranged on the end of the annular plate 4 away from the base plate 1. The L-shaped ring 2 is attached to the side of the base plate 1 where the internal thread seats 5 are located. The annular pressure plate 3 is tightly connected to the internal thread seats 5 by bolts 9. For a fixed connection, the annular pressure plate 3 is evenly provided with several through holes 16, each corresponding to a threaded seat 5. Bolts 9 pass through the through holes 16 of the annular pressure plate 3 to ensure smooth installation. A washer 17 is also provided between the head of the bolt 9 and the annular pressure plate 3 to prevent loosening, thus ensuring a press-fit seal. The annular pressure plate 3 near the bottom plate 1 has a first inner limiting ring 10 and a first outer limiting ring 11. The annular pressure plate 3 is connected by the first inner limiting ring 10 and the first outer limiting ring 11. An outer limiting ring 11 forms a first annular groove 12. An annular sealing limiting plate 6, located away from the bottom plate 1, is positioned within the first annular groove 12. An annular heat insulation plate 8 is also positioned within the first annular groove 12, pressed into the groove by the annular sealing limiting plate 6. A second inner limiting ring 13 and a second outer limiting ring 14 are positioned around the outer periphery of the annular sealing limiting plate 6 near the bottom plate 1. The annular sealing limiting plate 6, through the second inner limiting ring 13 and the second outer limiting ring 14, forms a second annular groove 15. The length of the second outer limiting ring 14 is less than the length of the second inner limiting ring 13. The second inner limiting ring 13 is pressed against the surface of the base plate 1. The inner diameter of the L-shaped ring 2 is greater than the outer diameter of the second inner limiting ring 13. The inner diameter of the second inner limiting ring 13 is greater than the outer diameter of the annular plate 4 to ensure that the second inner limiting ring 13 can be directly pressed against the surface of the base plate 1. An annular rubber sealing plate 7 is provided in the second annular groove 15. The annular rubber sealing plate 7 is pressed against the surface of the inner ring of the L-shaped ring 2. The second outer limiting ring 14 is pressed against the surface of the inner ring of the L-shaped ring 2.

[0020] Assembly method and operating principle: First, weld the internal thread seat 5 onto the annular plate 4, then coaxially weld the annular plate 4 onto the base plate 1. Drill holes in the annular pressure plate 3 according to the position of the internal thread seat 5, ensuring that the through holes 16 of the annular pressure plate 3 correspond one-to-one with the internal thread seat 5. Coaxially bond the rubber L-shaped ring 2 to the base plate 1. Then, place the annular rubber sealing plate 7 into the second annular groove 15 of the annular sealing limiting plate 6, and then place the annular heat insulation plate 8 into the second annular groove 15 of the annular pressure plate 3. Next, press the annular rubber sealing plate 7 into the second annular groove 15 of the annular pressure plate 3 and press it onto the outer surface of the annular heat insulation plate 8. Finally, align the through holes 16 of the annular pressure plate 3 with the internal thread seat 5, and pass the bolts 9 through the through holes 16 of the annular pressure plate 3 and tighten them to the internal thread seat 5. At this point, the annular pressure plate 3 presses onto the internal thread seat 5, and the annular rubber sealing plate 7 and the second outer limiting ring 14 are both pressed onto the L-shaped ring 2, completing the assembly. When the base plate 1 is installed in the chamber, the outer periphery of the L-shaped ring 2 is vulcanized and fused with the rubber sealing layer of the inner wall of the chamber, thus completing the seal at the end of the base plate 1 of the chamber. This utility model has a reasonable structure. The annular pressure plate 3 is fastened to the internal threaded seat 5 by bolts 9. An annular heat insulation plate 8 is provided at the outer end of the annular pressure plate 3 through the first annular groove 12, which also limits and presses the annular sealing limiting plate 6. The annular sealing limiting plate 6 is installed with the annular rubber sealing plate 7 through the second annular groove 15, and the annular rubber sealing plate 7 presses the L-shaped ring 2, greatly improving the sealing performance between the L-shaped ring 2 and the base plate 1. Simultaneously, the second inner limiting ring 13 of the annular sealing limiting plate 6 directly presses against the surface of the base plate 1, ensuring that internal air cannot enter between the L-shaped ring 2 and the base plate 1, further improving the sealing performance between the L-shaped ring 2 and the base plate 1, and preventing air leakage even after long-term use. The overall assembly method is simple and convenient; neither the L-shaped ring 2 nor the base plate 1 requires drilling, reducing processing difficulty.

[0021] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tooling for pressing an L-shaped ring to a base plate, characterized in that: The assembly includes a base plate (1), an L-shaped ring (2), and a pressing fixture assembly. The pressing fixture assembly includes an annular pressure plate (3), an annular plate (4), an internal thread seat (5), an annular sealing limit plate (6), an annular rubber sealing plate (7), an annular heat insulation plate (8), and bolts (9). An annular plate (4) is coaxially arranged on one side of the base plate (1). Several internal thread seats (5) are evenly arranged on the end of the annular plate (4) away from the base plate (1). The L-shaped ring (2) is attached to the base plate. (1) On one side of the internal thread seat (5), the annular pressure plate (3) is fastened to the internal thread seat (5) by bolts (9). The annular pressure plate (3) is provided with a first inner limiting ring (10) and a first outer limiting ring (11) on the periphery of the end of the annular pressure plate (3) near the bottom plate (1). The annular pressure plate (3) forms a first annular groove (12) through the first inner limiting ring (10) and the first outer limiting ring (11). The annular sealing limiting plate (6) is away from the bottom plate (1). The end is set in the first annular groove (12), and the first annular groove (12) is also provided with an annular heat insulation plate (8). The annular heat insulation plate (8) is pressed into the first annular groove (12) by an annular sealing limiting plate (6). The annular sealing limiting plate (6) is provided with a second inner limiting ring (13) and a second outer limiting ring (14) on the periphery of one end near the bottom plate (1). The annular sealing limiting plate (6) forms a second annular groove (15) through the second inner limiting ring (13) and the second outer limiting ring (14). The length of the second outer limiting ring (14) is less than that of the second inner limiting ring (13). The second inner limiting ring (13) is pressed onto the surface of the bottom plate (1). An annular rubber sealing plate (7) is provided in the second annular groove (15). The annular rubber sealing plate (7) is pressed onto the surface of the inner ring of the L-shaped ring (2). The second outer limiting ring (14) is pressed onto the surface of the inner ring of the L-shaped ring (2).

2. The L-shaped ring and base plate pressing fixture according to claim 1, characterized in that: The inner diameter of the L-shaped ring (2) is greater than the outer diameter of the second inner limiting ring (13), and the inner diameter of the second inner limiting ring (13) is greater than the outer diameter of the annular plate (4).

3. The L-shaped ring and base plate pressing fixture according to claim 1, characterized in that: The annular pressure plate (3) is evenly provided with a number of through holes (16), and the positions of the through holes (16) correspond one-to-one with the internal thread seat (5). The bolt (9) passes through the through holes (16) of the annular pressure plate (3).

4. The L-shaped ring and base plate pressing fixture according to claim 1, characterized in that: A washer (17) is also provided between the head of the bolt (9) and the annular pressure plate (3).

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