Overpressure protector for belleville spring

Abstract

The utility model provides a belleville spring overpressure protector which comprises an installation base and a cover plate, an installation groove is formed in the upper portion of the installation base, a springback washer is installed at the bottom of the installation groove, a limiting disc is installed in a groove in the middle of the installation base, and a belleville spring is placed in the groove in the middle of the installation base. The circle center of the limiting disc and the circle center of the round part of the belleville spring are collinear, through grooves are formed in the left side and the right side of the mounting base correspondingly, the two through grooves communicate with the mounting groove correspondingly, guide plates are slidably mounted in the two through grooves correspondingly, and guide grooves are formed in the opposite inner sides of the two L-shaped plates correspondingly. According to the disc spring, the problems that the service life of the disc spring is shortened due to the fact that the service life of the disc spring is affected when the disc spring is stressed are solved, the structure is reasonable, practicability is good, pressure borne by the disc spring is buffered conveniently through the springback assembly, and the service life of the disc spring is prolonged.

Description

Technical Field

[0001] The utility model relates to a disc spring overpressure protector, belonging to the technical field of overpressure protection. Background Art

[0002] Disc spring, also known as Belleville return spring washer, was invented by the Frenchman Belleville. It is a washer-type return spring with a truncated cone cross-section made of metal sheet or forged blank. It can be used alone or in series or parallel. It bears static or dynamic loads acting in the axial direction at the upper inner edge and lower outer edge. After being compressed, it deforms until it is flattened, storing energy as a live load. When necessary, it is automatically converted into the additional compression load required for sealing, thereby reducing the continuous tightening requirements of gaskets and packings during use.

[0003] However, when the disc spring is subjected to too much pressure, the service life of the disc spring will be affected, resulting in a reduction in the service life of the disc spring. Now a disc spring over-pressure protector is urgently needed to solve the above problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a disc spring overpressure protector to solve the problems raised in the above background technology. The utility model has a reasonable structure and good practicality. By setting a rebound component, it is convenient to buffer the pressure exerted on the disc spring and extend the life of the disc spring.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a disc spring overpressure protector, comprising a mounting base and a cover plate, a mounting groove is provided above the mounting base, a rebound washer is installed at the bottom of the mounting groove, a limit plate is installed in the groove in the middle of the mounting base, a disc spring is placed in the groove in the middle of the mounting base, the center of the limit plate is collinear with the center of the circular part of the disc spring, through grooves are respectively provided on the left and right sides of the mounting base, the two through grooves are respectively connected to the mounting grooves, guide plates are respectively slidably installed in the two through grooves, an extrusion ring is installed under the cover plate, connecting plates are installed on the left and right sides of the cover plate, linkage columns are respectively installed under the two connecting plates, L-shaped plates are respectively installed on the left and right sides of the mounting base, rectangular blocks are respectively installed on the relative outer sides of the two L-shaped plates, and guide grooves are respectively provided on the relative inner sides of the two L-shaped plates.

[0006] Furthermore, the two guide plates are respectively slidably connected inside the two guide grooves.

[0007] Furthermore, the extrusion ring is connected to the rebound washer.

[0008] Furthermore, a receiving groove is provided inside the two rectangular blocks, and an extension groove is provided on the bottom surface of the receiving groove.

[0009] Furthermore, the annular sides of the two linkage columns are respectively sleeved with extrusion columns, and return springs are respectively installed under the two extrusion columns. The two linkage columns are respectively slidably installed in the two extension grooves, and the lower ends of the two return springs are respectively connected to the bottom surfaces of the accommodating grooves, and the two return springs are respectively sleeved with the two linkage columns.

[0010] Furthermore, the two guide plates are respectively connected to the extrusion ring, and a pressure sensor is movably installed above the cover plate.

[0011] The beneficial effects of the utility model: the utility model is a disc spring over-pressure protector. Since the utility model adds a reset spring, a linkage column, an extrusion column, a rebound washer, a guide groove and a limit plate, our design improvement and actual use have shown that the device has a reasonable structure and good practicality. By setting the rebound component, it is convenient to buffer the pressure on the disc spring and extend the life of the disc spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a disc spring overpressure protector of the utility model;

[0014] Figure 2 This is a three-dimensional schematic diagram of the cross-sectional structure of the mounting base of a disc spring overpressure protector of the utility model;

[0015] Figure 3 This utility model is a disc spring overpressure protector Figure 2 A three-dimensional enlarged schematic diagram of the structure at A;

[0016] Figure 4 This is a three-dimensional schematic diagram of the mounting base structure of a disc spring overpressure protector of the utility model;

[0017] Figure 5 This is a three-dimensional schematic diagram of the cover structure of a disc spring overpressure protector of the utility model;

[0018] Figure 6 This is a three-dimensional schematic diagram of the connecting plate structure of a disc spring overpressure protector of the present utility model.

[0019] In the figure: 1-mounting base, 2-rectangular block, 3-L-shaped plate, 4-connecting plate, 5-through slot, 6-cover plate, 7-pressure sensor, 8-mounting slot, 9-guide plate, 10-limiting plate, 11-linkage column, 12-extrusion column, 13-reset spring, 14-rebound washer, 15-extrusion ring, 16-disc spring, 17-extension slot, 18-accommodation slot, 19-guide slot. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1-6 The utility model provides a technical solution: a disc spring overpressure protector, including a mounting base 1 and a cover plate 6. The mounting base 1 is provided with a mounting groove 8 above the mounting base 1, and a rebound washer 14 is installed at the bottom of the mounting groove 8. A limit plate 10 is installed in the groove in the middle of the mounting base 1, and a disc spring 16 is placed in the groove in the middle of the mounting base 1. The center of the limit plate 10 is collinear with the center of the circular part of the disc spring 16. A through groove 5 is respectively provided on the left and right sides of the mounting base 1, and the two through grooves 5 are respectively connected to the mounting groove 8. Guide plates 9 are respectively slidably installed in the two through grooves 5. An extrusion ring 15 is installed under the cover plate 6. A connecting plate 4 is installed on the left and right sides of the cover plate 6. Linkage columns 11 are respectively installed under the two connecting plates 4. L-shaped plates 3 are respectively installed on the left and right sides of the mounting base 1. Rectangular blocks 2 are respectively installed on the outer sides of the two L-shaped plates 3. Guide grooves 19 are respectively opened on the inner sides of the two L-shaped plates 3. This design solves the problem that when the disc spring is subjected to excessive pressure, the life of the disc spring is affected, resulting in a reduction in the life of the disc spring.

[0022] As a first embodiment of the present invention, two guide plates 9 are slidably connected within two guide grooves 19. By slidably connecting the two guide plates 9 to the two guide grooves 19, the stability of the extrusion ring 15 during movement is enhanced. The extrusion ring 15 is connected to the rebound washer 14. This connection facilitates the bearing of a certain pressure on the disc spring 16. The two rectangular blocks 2 have a receiving groove 18 formed within them, and an extension groove 17 is formed on the bottom surface of the receiving groove 18. The provision of the extension groove 17 facilitates the installation of the linkage column 11. The annular side surfaces of the two linkage columns 11 are respectively sleeved with the extrusion column 12, and the lower ends of the two return springs 13 are respectively installed below the two extrusion columns 12. The two linkage columns 11 are slidably mounted within the two extension grooves 17, and the lower ends of the two return springs 13 are respectively connected to the bottom surface of the receiving groove 18. The two return springs 13 are respectively sleeved with the two linkage columns 11. The cooperation of the linkage columns 11, the extrusion column 12, and the return springs 13 facilitates the auxiliary reset of the extrusion ring 15. The two guide plates 9 are connected to the extrusion rings 15 respectively. A pressure sensor 7 is movably installed above the cover plate 6. By setting the pressure sensor 7, it is convenient to know the external pressure value.

[0023] As a second embodiment of the present invention: the pressure sensor 7 is electrically connected to the external alarm. When the cover plate 6 is subjected to pressure, the extrusion ring 15 squeezes the rebound washer 14, and the two linkage columns 11 drive the corresponding extrusion columns 12 to move down along the two extension grooves 17. The two extrusion columns 12 squeeze the two return springs 13, and the two guide plates 9 move down along the two guide grooves 19. Then the cover plate 6 squeezes the disc spring 16. At this time, the disc spring 16 is compressed and deformed. When the disc spring 16 is continuously compressed and is about to reach its limit, the limit plate 10 will press the disc spring 16, thereby limiting the disc spring 16 from continuing to move. Continue to deform. At this time, the external pressure reaches the preset threshold of the pressure sensor 7. The alarm connected to the pressure sensor 7 in advance will sound an alarm to protect the disc spring 16 from overpressure. The pressure sensor 7 can also be removed, and corresponding circular mounting holes are opened in the middle of the cover 6, the middle of the disc spring 16, the middle of the limit plate 10 and the bottom of the mounting base 1. Several of these devices are connected to external equipment. At this time, multiple devices are in a superimposed state. When the force is applied, the first disc spring 16 reaches the pressure limit and will continue to apply pressure to the next disc spring 16. And so on. When the pressure disappears, the multiple disc springs 16 are reset.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0025] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A disc spring overpressure protector, comprising a mounting base (1) and a cover plate (6), characterized in that: A mounting groove (8) is provided above the mounting base (1), a rebound washer (14) is installed at the bottom of the mounting groove (8), a limit plate (10) is installed in the groove in the middle of the mounting base (1), a disc spring (16) is placed in the groove in the middle of the mounting base (1), the center of the limit plate (10) is collinear with the center of the circular portion of the disc spring (16), and through grooves (5) are respectively provided on the left and right sides of the mounting base (1), and the two through grooves (5) are respectively connected to the mounting groove (8); Guide plates (9) are slidably mounted in the two through grooves (5), an extrusion ring (15) is mounted below the cover plate (6), connecting plates (4) are mounted on the left and right sides of the cover plate (6), and linkage columns (11) are mounted below the two connecting plates (4). L-shaped plates (3) are mounted on the left and right sides of the mounting base (1), rectangular blocks (2) are mounted on the opposite outer sides of the two L-shaped plates (3), and guide grooves (19) are provided on the opposite inner sides of the two L-shaped plates (3).

2. The disc spring overpressure protector according to claim 1, characterized in that: The two guide plates (9) are respectively slidably connected inside the two guide grooves (19).

3. The disc spring overpressure protector according to claim 1, characterized in that: The extrusion ring (15) is connected to the rebound washer (14).

4. The disc spring overpressure protector according to claim 1, characterized in that: The two rectangular blocks (2) are provided with a receiving groove (18) inside, and the bottom surface of the receiving groove (18) is provided with an extension groove (17).

5. The disc spring overpressure protector according to claim 1, characterized in that: The annular side surfaces of the two linkage columns (11) are respectively sleeved with extrusion columns (12), and the lower parts of the two extrusion columns (12) are respectively installed with return springs (13). The two linkage columns (11) are respectively slidably installed in the two extension grooves (17), and the lower ends of the two return springs (13) are respectively connected to the bottom surface of the accommodating groove (18), and the two return springs (13) are respectively sleeved with the two linkage columns (11).

6. The disc spring overpressure protector according to claim 1, characterized in that: The two guide plates (9) are respectively connected to the extrusion ring (15), and a pressure sensor (7) is movably installed above the cover plate (6).

Images