Protection device for energy accumulator

Abstract

The utility model relates to the field of energy accumulators, and discloses a protection device for an energy accumulator, which comprises a shell and an air bag, a large spacer is arranged in the shell, the air bag is positioned below the large spacer, a working cavity is arranged below the large spacer, a buffer cavity is arranged above the large spacer, the large spacer is broken from the shell when the shell has the maximum working pressure, and the buffer cavity is arranged below the large spacer. A protruding ring is fixedly installed at the position, located above the large spacer, in the shell, the large spacer is fixedly connected with the protruding ring, the middle of the air bag is connected with and penetrates through a hose, and the hose extends to the position above the large spacer. According to the protection device for the energy accumulator, when the pressure of the shell is gradually increased and exceeds the standard pressure, the large spacer and the shell can be broken, and the buffer cavity behind the large spacer is opened at the moment, so that the pressure in the shell can be reduced, and the energy accumulator is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the field of accumulators, in particular to a protective device for accumulators. Background Art

[0002] The accumulator is an energy storage device in the hydraulic and pneumatic system. It converts the energy in the system into compression energy or potential energy and stores it at the right time. When the system needs it, it converts the compression energy or potential energy into hydraulic or air pressure energy and releases it to replenish the system. When the system pressure increases instantly, it can absorb this part of the energy to ensure the normal pressure of the entire system.

[0003] After the accumulator has been used for a long time, the pressure will be too low and nitrogen needs to be added. However, in the process of filling the accumulator with nitrogen, it is easy to make some mistakes, such as: filling with nitrogen under pressure, filling with nitrogen at too high a pressure, etc., which will damage the accumulator and pipeline. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a protective device for an accumulator, which has the advantage of buffering the accumulator and solves the problem of damage caused by excessive accumulator pressure.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for an accumulator, comprising a shell and an airbag, a large diaphragm is arranged inside the shell, the airbag is located below the large diaphragm, below the large diaphragm is a working cavity, above the large diaphragm is a buffer cavity, and the large diaphragm breaks from the shell when the shell is at the maximum working pressure.

[0008] In some embodiments, a raised ring is fixedly installed inside the shell above the large diaphragm, the large diaphragm is fixedly connected to the raised ring, and a hose is connected to and penetrates the middle of the airbag, and the hose extends to above the large diaphragm.

[0009] In some embodiments, a fracture groove is provided on the edge of the upper surface of the raised ring, and the cross-sectional shape of the fracture groove is triangular.

[0010] In some embodiments, the diameter of the large diaphragm is larger than the inner diameter of the raised ring, and the bottom edge of the large diaphragm is arc-shaped.

[0011] In some embodiments, a threaded opening is provided on one side of the top end of the shell, a sleeve is threadedly connected to the inner part of the threaded opening, an edge ring is fixedly installed inside the sleeve, and a small spacer is fixedly installed inside the edge ring.

[0012] In some embodiments, the small spacer is fixedly connected to the inner top wall of the sleeve via a compressed air bag.

[0013] In some embodiments, a whistle is fixedly mounted on the exhaust end of the compressed airbag, and the whistle extends to the outside of the sleeve.

[0014] In some embodiments, the small spacer and the sleeve are fixedly connected via a spring telescopic rod.

[0015] In some embodiments, an upwardly protruding groove is provided at the top of the sleeve, and the spring telescopic rod is fixedly installed inside the groove.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a protective device for an accumulator, which has the following beneficial effects:

[0018] 1. The accumulator protection device can break the large diaphragm and the shell when the pressure of the shell gradually increases and exceeds the standard pressure. At this time, the buffer cavity behind the large diaphragm is opened, thereby reducing the pressure in the shell to avoid damage to the accumulator.

[0019] 2. The accumulator protection device has a threaded opening on one side of the top end of the shell, the internal thread of the threaded opening is connected to a sleeve, an edge ring is fixedly installed inside the sleeve, and a small spacer is fixedly installed inside the edge ring. When the air pressure increases, the small spacer is separated from the edge ring. Through such an arrangement, the buffer component can be replaced after being used. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the hose connection of the utility model;

[0022] Figure 3 This is a schematic diagram of the raised ring connection of the utility model;

[0023] Figure 4 It is a schematic diagram of the threaded connection of the utility model.

[0024] In the figure:

[0025] 1. Shell; 2. Air bag; 3. Large spacer; 4. Raised ring; 5. Hose; 6. Fracture groove; 7. Threaded mouth; 8. Sleeve; 9. Edge ring; 10. Compression air bag; 11. Whistle; 12. Spring telescopic rod; 13. Groove; 14. Small spacer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] When the pressure of the shell 1 gradually increases and exceeds the standard pressure, the large diaphragm 3 and the shell 1 can be broken. At this time, the buffer cavity behind the large diaphragm 3 is opened, thereby reducing the pressure in the shell 1 to avoid damage to the accumulator.

[0030] In the related art, in the process of charging the accumulator with nitrogen, some misoperations are easy to occur, for example, charging with nitrogen under pressure, charging with nitrogen at too high a pressure, etc., which may damage the accumulator and the pipeline.

[0031] In order to solve the problems in the related art to a certain extent, an embodiment of the present application provides a protection device for an accumulator. When it is needed, only a small repairable active damage needs to be actively performed to reduce the pressure in the accumulator.

[0032] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0033] Combination Figure 1-Figure 4 An embodiment of the present application provides a protective device for an accumulator, including a shell 1 and an airbag 2. A large diaphragm 3 is provided inside the shell 1, and the airbag 2 is located below the large diaphragm 3. Below the large diaphragm 3 is a working cavity, and above the large diaphragm 3 is a buffer cavity. The large diaphragm 3 breaks from the shell 1 when the shell 1 is at the maximum working pressure.

[0034] In some embodiments, a raised ring 4 is fixedly installed inside the shell 1 above the large diaphragm 3, the large diaphragm 3 is fixedly connected to the raised ring 4, and a hose 5 is connected and penetrated in the middle of the airbag 2, and the hose 5 extends to the top of the large diaphragm 3. Through such an arrangement, the connection between the large diaphragm 3 and the raised ring 4 can have a buffering effect.

[0035] Specifically, a fracture groove 6 is provided on the edge of the upper surface of the raised ring 4 , and the cross-sectional shape of the fracture groove 6 is a triangle. This arrangement enables the raised ring 4 to fracture at a preset position.

[0036] Specifically, the diameter of the large spacer 3 is larger than the inner diameter of the raised ring 4 , and the bottom edge of the large spacer 3 is arc-shaped. This arrangement can avoid scratching the airbag 2 .

[0037] In some embodiments, the airbag 2 is directly arranged on the inner top wall of the outer shell 1, and a threaded opening 7 is arranged on one side of the top end of the outer shell 1. The internal thread of the threaded opening 7 is connected with a sleeve 8. An edge ring 9 is fixedly installed inside the sleeve 8, and a small spacer 14 is fixedly installed inside the edge ring 9. When the air pressure increases, the small spacer 14 is separated from the edge ring 9. Through such a setting, the buffer component can be replaced after being used.

[0038] Specifically, the small spacer 14 is fixedly connected to the inner top wall of the sleeve 8 via the compressed air bag 10, and the compressed air bag 10 can provide a buffering effect.

[0039] Specifically, a whistle 11 is fixedly installed at the exhaust end of the compressed air bag 10, and the whistle 11 extends to the outside of the sleeve 8. Through such an arrangement, the whistle 11 can emit a sound when the compressed air bag 10 is working.

[0040] Specifically, the small spacer 14 and the sleeve 8 are fixedly connected via a spring telescopic rod 12, and the spring telescopic rod 12 has the functions of buffering and resetting.

[0041] Specifically, the top of the sleeve 8 is provided with an upwardly protruding groove 13, and the spring telescopic rod 12 is fixedly installed inside the groove 13. Such an arrangement can increase the use space of the sleeve 8.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0043] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for an accumulator, comprising a housing (1) and an airbag (2), characterized in that: A large diaphragm (3) is arranged inside the shell (1), the airbag (2) is located below the large diaphragm (3), below the large diaphragm (3) is a working cavity, and above the large diaphragm (3) is a buffer cavity, and the large diaphragm (3) breaks away from the shell (1) when the shell (1) is at maximum working pressure.

2. The accumulator protection device according to claim 1, characterized in that: A raised ring (4) is fixedly installed inside the shell (1) above the large diaphragm (3), the large diaphragm (3) is fixedly connected to the raised ring (4), and a hose (5) is connected to and penetrates the middle of the airbag (2), and the hose (5) extends to the top of the large diaphragm (3).

3. The accumulator protection device according to claim 2, characterized in that: The edge of the upper surface of the raised ring (4) is provided with a fracture groove (6), and the cross-sectional shape of the fracture groove (6) is a triangle.

4. An accumulator protection device according to claim 2 or 3, characterized in that: The diameter of the large spacer (3) is greater than the inner diameter of the raised ring (4), and the bottom edge of the large spacer (3) is in an arc shape.

5. The accumulator protection device according to claim 1, characterized in that: A threaded opening (7) is provided on one side of the top end of the housing (1), a sleeve (8) is connected to the inner thread of the threaded opening (7), an edge ring (9) is fixedly installed inside the sleeve (8), and a small spacer (14) is fixedly installed inside the edge ring (9).

6. The accumulator protection device according to claim 5, characterized in that: The small spacer (14) is fixedly connected to the inner top wall of the sleeve (8) via a compressed air bag (10).

7. The accumulator protection device according to claim 6, characterized in that: A whistle (11) is fixedly mounted on the exhaust end of the compressed air bag (10), and the whistle (11) extends to the outside of the sleeve (8).

8. An accumulator protection device according to any one of claims 5 to 7, characterized in that: The small spacer (14) and the sleeve (8) are fixedly connected via a spring telescopic rod (12).

9. The accumulator protection device according to claim 8, characterized in that: The top end of the sleeve (8) is provided with an upwardly protruding groove (13), and the spring telescopic rod (12) is fixedly installed inside the groove (13).

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