An integrated permanent gas storage accumulator

Abstract

The application belongs to the field of accumulators and provides an integrated permanent gas storage accumulator, which comprises an upper shell and a lower shell, the upper shell is installed on the lower shell, the top of the upper shell is provided with a gas charging valve through hexagonal installation, the bottom of the lower shell is connected with an inlet and outlet liquid end, and a diaphragm and a gas storage mechanism are further installed between the upper shell and the lower shell; the gas storage mechanism comprises a gas storage shell and a gas valve assembly, the gas storage shell is located above the diaphragm, and the gas valve assembly is fixedly installed on the gas storage shell. When the first gas cavity is filled with gas, the gas enters the second gas cavity through the gas valve assembly, after the gas charging is completed, the gas valve assembly cuts off the communication between the first gas cavity and the second gas cavity, then, the gas in the first gas cavity is released, and the gas is stored in the second gas cavity, so that the permanent gas storage of the product can be realized, and when the product is used again after long-term storage, it is not necessary to recharge, and the use is more convenient.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of accumulators, and particularly relates to an integrated permanent gas storage accumulator. BACKGROUND

[0002] An accumulator is an energy storage device in a hydraulic pneumatic system, which converts energy in the system into compressed energy or potential energy at an appropriate time, and releases the compressed energy or potential energy into hydraulic pressure or gas pressure to supply the system again when the system needs it. When the pressure of the system increases instantaneously, the accumulator can absorb part of the energy to ensure the normal pressure of the whole system. The accumulator is widely used in aerospace, ships, medical devices, engineering machinery, construction, safety devices and other fields.

[0003] Generally, after a high-pressure gas is filled in the accumulator, the sealing of the inflation valve is only realized by a rubber sealing ring. Such a structure is not dangerous in terms of leakage in short-term use, but when stored for a long time, the rubber sealing ring, O-ring or diaphragm inside the inflation valve is hardened, cracked or deformed due to long-term pressure or contact with corrosive media, thereby losing the sealing property. For example, the moisture or oil residue in the compressed air can accelerate the corrosion of the sealing element, thereby causing the accumulator to fail. After long-term storage, the accumulator needs to be refilled when used again, which wastes manpower and material resources and is extremely inconvenient. SUMMARY

[0004] The present application aims to provide an integrated permanent gas storage accumulator, and aims to solve the technical problem that the existing accumulator in the prior art leaks after long-term storage.

[0005] The present application is implemented as follows: an integrated permanent gas storage accumulator includes an upper shell and a lower shell, the upper shell is threadedly mounted on the lower shell, a top of the upper shell is provided with a hexagonal shape, an inflation valve is mounted on the hexagonal shape, an outer side of the inflation valve is provided with an upper protective cap, the upper protective cap can protect the inflation valve and reduce corrosion of a sealing ring on the inflation valve when the device is stored, a bottom of the lower shell is connected with an inlet and outlet liquid end, the inlet and outlet liquid end is used to be mounted into a hydraulic system, an outer side surface of the inlet and outlet liquid end is sleeved with a lower protective cap for protecting the inlet and outlet liquid end and a diaphragm;

[0006] A diaphragm and a gas storage mechanism are further mounted between the upper shell and the lower shell, and the gas storage mechanism is located above the diaphragm;

[0007] The gas storage mechanism includes a gas storage shell and a gas valve assembly, the gas storage shell is a hemispherical shell, the gas storage shell is mounted above the diaphragm, and the gas valve assembly is fixedly mounted on the gas storage shell.

[0008] The air storage shell and the diaphragm form a closed second air cavity, the bottom of the diaphragm and the lower shell form a liquid cavity, and the top of the air storage shell and the upper shell form a closed first air cavity.

[0009] When the upper shell is filled with gas (nitrogen) through the inflation valve, the gas first enters the first air cavity, and the gas in the first air cavity enters the second air cavity through the gas valve assembly. When the gas in the second air cavity and the first air cavity is filled to a certain air pressure value, the inflation is stopped, the gas in the first air cavity is released through the inflation valve, and the air storage mechanism is used for permanent air storage.

[0010] Further technical solutions: the upper shell and the hexagonal are integrally formed, and the lower shell and the inlet and outlet liquid end are integrally formed.

[0011] Further technical solutions: the gas valve assembly includes a mounting cylinder and an inner column, the mounting cylinder is fixedly installed on the air storage shell, the inner column is slidably installed in the mounting cylinder, the two ends of the mounting cylinder extend into the first air cavity and the second air cavity respectively, the two ends of the mounting cylinder are provided with gas ports, and the inner top of the mounting cylinder is provided with a plugging structure, the plugging structure is used for plugging the gas port, when the first air cavity is inflated, the plugging structure is opened, the gas enters the inner cylinder through the gas port, and the gas pushes the inner column to descend.

[0012] The bottom of the inner column is provided with a gas channel, the side surface of the inner column is provided with a plurality of gas inlet holes and gas outlet holes which are in communication with the gas channel, one side of the end of the mounting cylinder in the first air cavity is provided with a plurality of gas inlet and outlet holes, and the bottom of the inner column and the mounting cylinder are connected with a first compression spring.

[0013] The gas valve assembly further includes a locking mechanism, the locking mechanism is installed on the mounting cylinder, the output end of the locking mechanism is inserted into the inner column, and the locking mechanism is used for fixing the inner column.

[0014] Further technical solutions: the plugging structure includes a plugging valve piece, the plugging valve piece is rotatably installed on the inner top of the mounting cylinder, the plugging valve piece and the mounting cylinder are connected with a torsion spring, and initially, the plugging valve piece plugs the gas port.

[0015] Further technical solutions: the locking mechanism includes a mounting box fixedly connected to the side surface of the mounting cylinder, a sliding block is slidably installed in the mounting box, the sliding block is fixedly connected with a clamping tooth close to the side surface of the inner column, the side surface of the inner column is provided with a clamping groove matched with the clamping tooth, and the clamping tooth can be inserted into the clamping groove.

[0016] The second compression spring is arranged between the sliding block and the mounting box, the side surface of the inner column is provided with a second unlocking air hole communicated with the air channel, and the side surface of the mounting box and the mounting air cylinder is provided with a first unlocking air hole.

[0017] Further technical solutions: the locking mechanism further comprises an adjusting assembly, the adjusting assembly comprises an adjusting plate slidingly mounted in the mounting box, one end of the second compression spring is connected to the adjusting plate, and the side surface of the mounting box is threadedly connected with an adjusting screw rod, and one end of the adjusting screw rod is rotationally mounted on the adjusting plate.

[0018] Compared with the prior art, the beneficial effects of the present application are as follows:

[0019] 1、The present application divides the product space into a first air cavity and a second air cavity by the air storage shell, and uses an on-off air valve assembly to communicate, when inflating the upper shell, the gas first enters the first air cavity, the gas in the first air cavity enters the second air cavity through the air valve assembly, when the air pressure reaches a certain threshold, the inflation is stopped, the air valve assembly cuts off the communication between the first air cavity and the second air cavity, then the gas in the first air cavity is released through the inflation valve, at this time, the air pressure in the first air cavity is equal to the atmospheric pressure, it no longer presses the sealing ring in the inflation valve, the service life of the sealing ring in the inflation valve is greatly improved, therefore, the permanent air storage of the product can be realized, after long-term storage, when used again, it is not necessary to re-inflate, and the use is more convenient.

[0020] 2、The present application cancels the welding between the upper shell and the hexagonal part, and the welding between the lower shell and the liquid inlet and outlet end, so that the upper shell and the hexagonal part are integrated, and the lower shell and the liquid inlet and outlet end are integrated, thereby avoiding two welding processes, improving the product performance, and reducing the processing procedures.

[0021] 3、When the locking mechanism fixes the inner column, the gas inlet hole and the gas outlet hole are blocked by the inner wall of the mounting air cylinder, the gas in the second air cavity extrudes the inner wall of the mounting air cylinder, instead of directly acting on the sealing ring on the inner column, therefore, the service life of the sealing ring on the inner column is also increased, the sealing effect of the inner column is improved, and the possibility of gas leakage from the second air cavity to the first air cavity is reduced.

[0022] 4、The present application blocks the gas port by the blocking valve piece, after the gas in the first air cavity is released, the air pressure between the top of the inner column and the mounting air cylinder is greater than the air pressure in the first air cavity, under the larger air pressure, the blocking valve piece tightly abuts against the inner top of the mounting air cylinder, the greater the air pressure difference, the tighter the blocking of the blocking valve piece, therefore, the gas leakage from the gas port and the blocking valve piece in the second air cavity can be avoided, and the sealing performance of the air storage mechanism is better.

[0023] 5、The application, by setting the adjusting assembly, the adjusting assembly can set the initial elastic force of the second compression spring, only the pressure of the gas on the sliding block is greater than the elastic force of the second compression spring, the gas can push the sliding block to move, when the using mode is adopted, the elastic force of the second compression spring can be set to be greater than the maximum oil pressure of the hydraulic system, in normal use, the first gas cavity and the second gas cavity are not communicated, when the oil pressure in the hydraulic system suddenly increases and exceeds the maximum rated value, the gas in the second gas cavity pushes the sliding block to move and releases the inner column, then the gas in the second gas cavity flows into the first gas cavity, the overall gas pressure decreases, and then the suddenly increased oil pressure can be buffered, damage of the large gas pressure to the gas storage shell is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure schematic diagram of the application.

[0025] Figure 2 It is the overall internal structure schematic diagram of the application.

[0026] Figure 3 It is the overall partial cross-section structure schematic diagram of the application.

[0027] Figure 4 It is the structure schematic diagram of the inner column in the application. Figure 3 It is the enlarged schematic diagram of A in the application.

[0028] Figure 5 It is the structure schematic diagram of the inner column in the application. Figure 4 It is the enlarged schematic diagram of B in the application.

[0029] Figure 6 It is the structure schematic diagram of the inner column in the application.

[0030] Figure 7 It is the cross-section structure schematic diagram of the upper shell in the application.

[0031] Figure 8 It is the cross-section structure schematic diagram of the lower shell in the application.

[0032] In the attached diagram: 1. Upper shell; 2. Lower shell; 3. Hexagonal; 4. Inflation valve; 5. Gas storage mechanism; 51. Gas storage shell; 52. Mounting cylinder; 53. Inner column; 54. Air inlet; 55. Sealing valve plate; 56. Air inlet; 57. Air inlet and outlet; 58. Air outlet; 59. Locking mechanism; 591. Slot; 592. Locking tooth; 593. Mounting box; 594. Second compression spring; 595. Adjusting screw; 596. Adjusting plate; 597. Slider; 598. First unlocking vent; 599. Second unlocking vent; 510. Air passage; 511. Fixing key; 512. Limiting slide groove; 513. First compression spring; 6. Diaphragm; 7. Liquid inlet / outlet; 8. First air chamber; 9. Liquid chamber; 10. Lower protective cap; 11. Upper protective cap; 12. Second air chamber; 13. First mounting ring groove; 14. Second mounting ring groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0035] like Figures 1-8 As shown, an integrated permanent gas storage accumulator provided by the present invention includes an upper shell 1 and a lower shell 2. The upper shell 1 is threaded onto the lower shell 2. A hexagonal 3 is provided on the top of the upper shell 1, and an inflation valve 4 is installed on the hexagonal 3. An upper protective cap 11 is provided on the outside of the inflation valve 4. When storing the device, the upper protective cap 11 can protect the inflation valve 4 and reduce the corrosion of the sealing ring on the inflation valve 4. The bottom of the lower shell 2 is connected to an inlet / outlet end 7. The inlet / outlet end 7 is used to install into a hydraulic system. A lower protective cap 10 is sleeved on the outer side of the inlet / outlet end 7 to protect the inlet / outlet end 7 and the diaphragm 6.

[0036] A diaphragm 6 and a gas storage mechanism 5 are also installed between the upper shell 1 and the lower shell 2, with the gas storage mechanism 5 located above the diaphragm 6.

[0037] The gas storage mechanism 5 includes a gas storage shell 51 and a valve assembly. The gas storage shell 51 is a hemispherical shell. The gas storage shell 51 is installed above the diaphragm 6. The valve assembly is fixedly installed on the gas storage shell 51.

[0038] A sealed second air chamber 12 is formed between the gas storage shell 51 and the diaphragm 6, a liquid chamber 9 is formed between the bottom of the diaphragm 6 and the lower shell 2, and a sealed first air chamber 8 is formed between the top of the gas storage shell 51 and the upper shell 1.

[0039] When the upper shell 1 is filled with gas (nitrogen) through the inflation valve 4, the gas first enters the first gas cavity 8, and when the gas pressure in the first gas cavity 8 reaches a certain threshold value, the gas enters the second gas cavity 12 through the gas valve assembly, at this time, the gas valve assembly communicates the first gas cavity 8 and the second gas cavity 12, and the gas in the second gas cavity 12 and the first gas cavity 8 is filled to a certain gas pressure value (the filling gas pressure value of the product should be greater than the rated gas pressure value of the product, the filling gas pressure value of the product is 1.2~1.4 times the rated gas pressure value, the multiple value is related to the space proportion of the first gas cavity 8, for example, the volume ratio of the first gas cavity 8 to the second gas cavity 12 is 3:7, and the multiple is 1.3), and the inflation is stopped at this time, at this time, the gas pressure in the first gas cavity 8 and the second gas cavity 12 is equal, and after stopping the inflation, the gas valve assembly cuts off the communication between the first gas cavity 8 and the second gas cavity 12, and then the gas in the first gas cavity 8 is released through the inflation valve 4, at this time, the gas storage mechanism 5 is used for permanently storing the gas.

[0040] Specifically, the bottom of the upper shell 1 is provided with a first installation ring groove 13 for installing the gas storage shell 51, and the top of the lower shell 2 is provided with a second installation ring groove 14 for installing the diaphragm 6, so that the gas storage shell 51 and the diaphragm 6 are more firmly installed and have better sealing performance.

[0041] The gas in the upper shell 1 is all gathered in the second gas cavity 12, and the gas pressure in the first gas cavity 8 should be equal to the atmospheric pressure, because there is no longer a large pressure on the sealing ring in the inflation valve 4, the service life of the sealing ring in the inflation valve 4 is greatly improved, so that the permanent gas storage of the product can be realized, and after long-term storage, the product does not need to be recharged when used again, and the use is more convenient, and when the oil pressure in the hydraulic system is greater than the gas pressure in the second gas cavity 12, the gas valve assembly communicates the first gas cavity 8 and the second gas cavity 12 again, so that the gas in the second gas cavity 12 enters the first gas cavity 8 through the gas valve assembly, at this time, the gas pressure in the first gas cavity 8 and the second gas cavity 12 is equal, at this time, the gas pressure should be equal to the rated gas pressure of the product, and then the device can be used normally.

[0042] The one-piece permanent gas storage accumulator provided by the application has the following advantages: the upper shell 1 and the hexagonal 3 are integrally formed, and the lower shell 2 and the inlet and outlet liquid end 7 are integrally formed.

[0043] Specifically, the upper shell 1 and the hexagon 3, the lower shell 2 and the liquid inlet and outlet end 7 are integrally formed by pouring process, then threads are formed in the interior of the hexagon 3 and the exterior of the liquid inlet and outlet end 7, so as to facilitate the installation of the inflation valve 4 on the hexagon 3 and the installation of the product in the hydraulic system.

[0044] The present application cancels the two welding processes, the top hexagon 3 is integrated with the upper shell 1, and the liquid inlet and outlet end 7 is integrated with the lower shell 2, thereby avoiding the two welding processes, improving the product performance, and reducing the processing procedures.

[0045] The gas valve assembly comprises a mounting cylinder 52 and an inner column 53, the mounting cylinder 52 is fixedly installed on the gas storage shell 51, the inner column 53 is slidably installed in the mounting cylinder 52, both ends of the mounting cylinder 52 extend into the first gas cavity 8 and the second gas cavity 12 respectively, gas ports 54 are formed in both ends of the mounting cylinder 52, a plugging structure is installed on the inner top of the mounting cylinder 52, the plugging structure is used for plugging the gas ports 54, when the first gas cavity 8 is inflated, the plugging structure is opened, the gas enters the interior of the mounting cylinder 52 through the gas ports 54, and the gas pushes the inner column 53 to descend.

[0046] A gas channel 510 is formed in the bottom of the inner column 53, a plurality of gas inlet holes 56 and gas outlet holes 58 which are in communication with the gas channel 510 are formed in the side surface of the inner column 53, a plurality of gas inlet and outlet holes 57 are formed in the side surface of one end of the mounting cylinder 52 which is located in the first gas cavity 8, and a first compression spring 513 is connected between the bottom of the inner column 53 and the mounting cylinder 52.

[0047] The gas valve assembly further comprises a locking mechanism 59, the locking mechanism 59 is installed on the mounting cylinder 52, the output end of the locking mechanism 59 is inserted into the inner column 53, and the locking mechanism 59 is used for fixing the inner column 53.

[0048] Specifically, a fixed key 511 is fixedly connected to the inner wall of the mounting cylinder 52, and a limiting sliding groove 512 is formed in the side surface of the inner column 53, and the fixed key 511 is slidably installed in the limiting sliding groove 512.

[0049] A plurality of sealing rings are embedded in the side surface of the inner column 53, two sealing rings are located below the gas inlet hole 56 and above the gas outlet hole 58 respectively, after the inner column 53 is fixed by the locking mechanism 59, the sealing rings between the gas inlet hole 56 and the gas outlet hole 58 are located on both sides of the gas inlet and outlet hole 57, so that the gas in the second gas cavity 12 does not leak from the gas inlet and outlet hole 57, and another sealing ring is arranged below the gas outlet hole 58.

[0050] Working principle: when the first air cavity 8 is filled with air through the inflation valve 4, the gas overcomes the blocking structure and drives the blocking structure to open the air port 54, the gas enters the installation cylinder 52 from the air port 54, the inner column 53 is pushed down to extrude the output end of the locking mechanism 59, the output end of the locking mechanism 59 exits the inner column 53, then the inlet hole 56 is communicated with the inlet and outlet hole 57, the gas in the first air cavity 8 enters the second air cavity 12 from the inlet and outlet hole 57, the inlet hole 56 and the air duct 510, when the air pressure in the first air cavity 8 reaches the rated value, stop inflating, the blocking structure reseals the air port 54, under the action of the first compression spring 513, the inner column 53 rises, then the locking mechanism 59 fixes the inner column 53, at this time, the inlet and outlet hole 57 is no longer communicated with the inlet hole 56, the first air cavity 8 and the second air cavity 12 are cut off, then the gas in the first air cavity 8 is released through the inflation valve 4, and the air pressure in the first air cavity 8 is equal to the atmospheric pressure, which avoids the damage of the large air pressure in the first air cavity 8 to the sealing ring in the inflation valve 4, prolongs the service life of the sealing ring in the inflation valve 4, solves the problem of gas leakage from the inflation valve 4, so that the product can be stored for a long time;

[0051] When the device is used, the inlet and outlet end 7 is connected to the hydraulic system, the hydraulic oil in the hydraulic system will flow into the liquid cavity 9, the diaphragm 6 will deform according to the oil pressure in the hydraulic system, and the gas in the second air cavity 12 will be extruded, so as to increase the air pressure in the second air cavity 12, when the air pressure in the second air cavity 12 reaches a certain threshold value, the locking mechanism 59 releases the inner column 53, under the action of the first compression spring 513, the inner column 53 continues to rise, so that the top of the inner column 53 contacts the bottom of the blocking structure, at the same time, the outlet hole 58 is communicated with the inlet and outlet hole 57, the gas in the second air cavity 12 enters the first air cavity 8 through the air duct 510, the outlet hole 58 and the inlet and outlet hole 57, that is, the first air cavity 8 and the second air cavity 12 are communicated, the air pressure in the first air cavity 8 and the second air cavity 12 is equal, because the gas in the second air cavity 12 diffuses into the first air cavity 8, the volume of the gas increases, so the air pressure in the first air cavity 8 and the second air cavity 12 decreases, the air pressure returns to the rated pressure, and the hydraulic system can work normally.

[0052] In addition, when the locking mechanism 59 fixes the inner column 53, the inlet hole 56 and the outlet hole 58 are sealed by the inner wall of the installation cylinder 52, the gas in the second air cavity 12 will extrude the inner wall of the installation cylinder 52, rather than directly acting on the sealing ring on the inner column 53, therefore, the service life of the sealing ring on the inner column 53 is also increased, the sealing effect of the inner column 53 is improved, and the possibility of gas leakage from the second air cavity 12 to the first air cavity 8 is reduced.

[0053] The integrated permanent gas storage accumulator provided by the application comprises a blocking structure, wherein the blocking structure comprises a blocking valve plate 55 rotatably installed on the inner top of the mounting cylinder 52, and a torsion spring is connected between the blocking valve plate 55 and the mounting cylinder 52, and the blocking valve plate 55 blocks the gas port 54 at the beginning.

[0054] Specifically, a sealing ring is embedded on the upper surface of the blocking valve plate 55, and the upper surface of the blocking valve plate 55 is in contact with the inner top of the mounting cylinder 52.

[0055] After the inflation is stopped, the gas pressures in the first gas cavity 8 and the second gas cavity 12 are equal, the blocking valve plate 55 blocks the gas port 54 under the action of the torsion spring, the inner column 53 rises under the action of the first compression spring 513, so that the inlet and outlet gas hole 57 and the inlet gas hole 56 are staggered, then the locking mechanism 59 fixes the inner column 53, and at the same time, the inlet and outlet gas hole 57 and the inlet gas hole 56 are no longer communicated; when the gas in the first gas cavity 8 is released, the gas pressure between the top of the inner column 53 and the mounting cylinder 52 is greater than the gas pressure in the first gas cavity 8, under the action of the greater gas pressure, the blocking valve plate 55 tightly abuts against the inner top of the mounting cylinder 52, the greater the gas pressure difference is, the tighter the blocking valve plate 55 blocks, so that the gas leakage of the second gas cavity 12 from the gas port 54 and the blocking valve plate 55 can be avoided.

[0056] In addition, since the space between the top of the inner column 53 and the top of the mounting cylinder 52 is not communicated with the inside of the second gas cavity 12, even if the sealing ring on the blocking valve plate 55 is aged and cracked, and has a tendency to leak, only a small amount of gas will enter the first gas cavity 8, the gas pressure in the first gas cavity 8 will slightly increase after the gas enters the first gas cavity 8, and the gas pressure has little effect on the service life of the sealing ring in the inflation valve 4, and the gas will not leak out under the blockage of the inflation valve 4, so that the product does not need to be recharged after a long time of storage, and the use is more convenient.

[0057] When the inner column 53 is fixed by the locking mechanism 59, the distance from the top of the inner column 53 to the bottom of the blocking valve plate 55 is equal to the distance from the axis of the outlet gas hole 58 to the axis of the inlet and outlet gas hole 57, so that after the locking mechanism 59 releases the inner column 53, the top of the inner column 53 is in contact with the bottom of the blocking valve plate 55 under the action of the first compression spring 513, at this time, the inlet and outlet gas hole 57 and the outlet gas hole 58 are communicated, and the first gas cavity 8 and the second gas cavity 12 are communicated, that is, the product can be used normally.

[0058] The integrated permanent gas storage accumulator provided by the application, in the embodiment, the locking mechanism 59 comprises a mounting box 593 fixedly connected to the side of the mounting cylinder 52, a sliding block 597 is slidingly mounted in the mounting box 593, the sliding block 597 is fixedly connected with a clamping tooth 592 close to the side of the inner column 53, the side of the inner column 53 is provided with a clamping groove 591 matched with the clamping tooth 592, and the clamping tooth 592 can be inserted into the clamping groove 591;

[0059] The second compression spring 594 is arranged between the sliding block 597 and the mounting box 593, the side of the inner column 53 is provided with a second unlocking gas hole 599 in communication with the gas channel 510, and the side of the mounting box 593 and the mounting cylinder 52 is provided with a first unlocking gas hole 598; when the clamping tooth 592 is inserted into the clamping groove 591, the second unlocking gas hole 599 is in communication with the first unlocking gas hole 598.

[0060] Specifically, the sliding block 597 is embedded with a square sealing ring, the end of the clamping tooth 592 is upwardly inclined, and the top edge of the clamping groove 591 is chamfered; when the inner column 53 descends, the chamfer on the clamping groove 591 is in contact with the inclined surface of the clamping tooth 592, the pushing force of the gas on the inner column 53 overcomes the elastic force of the second compression spring 594, so that the inner column 53 can extrude the inclined surface of the clamping tooth 592 and drive the clamping tooth 592 and the sliding block 597 to move, and finally the clamping tooth 592 can be extruded out of the clamping groove 591; at this time, under the action of the second compression spring 594, the end of the clamping tooth 592 abuts against the outer surface of the inner column 53.

[0061] In order to extrude the inclined surface of the clamping tooth 592, the chamfer of the clamping groove 591 must be located directly above the inclined surface; at this point, the distance from the chamfer of the clamping groove 591 to the left side of the sliding block 597 is greater than the distance from the top edge of the inclined surface of the clamping tooth 592 to the left side of the sliding block 597.

[0062] When the product is used, when the hydraulic oil extrudes the diaphragm 6, the gas pressure in the second gas cavity 12 increases, the gas in the second gas cavity 12 cannot enter the first gas cavity 8 from the gas inlet and outlet hole 57, and the gas extrudes the sliding block 597 through the second unlocking gas hole 599 and the first unlocking gas hole 598; when the gas pressure overcomes the elastic force of the second compression spring 594, the gas pushes the sliding block 597 to retreat; when the gas pressure in the second gas cavity 12 reaches a certain threshold value, the sliding block 597 drives the clamping tooth 592 to exit the clamping groove 591; under the joint action of the gas pressure in the second gas cavity 12 and the first compression spring 513, the inner column 53 is pushed to rise, so that the gas inlet and outlet hole 57 and the gas outlet hole 58 are in communication, the gas in the second gas cavity 12 flows into the first gas cavity 8, and the original gas pressure rating is restored.

[0063] The integrated permanent gas storage accumulator provided by the application can be used more flexibly, and the gas pressure of the release inner column 53 can be freely set according to different use scenarios, in the embodiment, the locking mechanism 59 further comprises an adjusting assembly, the adjusting assembly comprises an adjusting plate 596 slidingly installed in an installation box 593, one end of the second compression spring 594 is connected to the adjusting plate 596, and the side surface of the installation box 593 is threadedly connected with an adjusting screw rod 595, and one end of the adjusting screw rod 595 is rotationally installed on the adjusting plate 596.

[0064] Specifically, the adjusting screw rod 595 is rotated, the adjusting screw rod 595 drives the adjusting plate 596 to move, the adjusting plate 596 can adjust the initial length of the second compression spring 594, that is, the initial elastic force of the second compression spring 594, and only when the pressure of the gas on the sliding block 597 is greater than the elastic force of the second compression spring 594, the gas can drive the sliding block 597 to move, so that the gas pressure value of the release inner column 53 can be adjusted.

[0065] When the use mode is adopted, the elastic force of the second compression spring 594 can be set to be greater than the maximum oil pressure of the hydraulic system, in normal use, the first gas cavity 8 and the second gas cavity 12 are not communicated, and the diaphragm 6 can extrude the gas in the second gas cavity 12, but does not affect the use of the product, when the oil pressure in the hydraulic system suddenly increases and exceeds the maximum rated value, the gas in the second gas cavity 12 drives the sliding block 597 to move, the clamping tooth 592 is withdrawn from the clamping groove 591, the release inner column 53 is released, then the gas outlet hole 58 and the gas inlet and outlet hole 57 are communicated, the gas in the second gas cavity 12 flows into the first gas cavity 8, and the overall gas pressure is reduced, thereby the suddenly increased oil pressure can be buffered, and damage of the gas storage shell 51 caused by the large gas pressure can be avoided.

[0066] The above only describes preferred embodiments of the application and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

[0067] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that can be understood by the person skilled in the art.

Claims

1. An integrated permanent gas storage accumulator, comprising an upper shell and a lower shell, the upper shell being mounted on the lower shell, an inflation valve being hexagonally mounted on the top of the upper shell, and an inlet / outlet liquid terminal being connected to the bottom of the lower shell, characterized in that, A diaphragm and a gas storage mechanism are also installed between the upper and lower shells; The gas storage mechanism includes a gas storage shell and a valve assembly. The gas storage shell is located above the diaphragm, and the valve assembly is fixedly installed on the gas storage shell. A sealed second air chamber is formed between the gas storage shell and the diaphragm, a liquid chamber is formed between the bottom of the diaphragm and the lower shell, and a sealed first air chamber is formed between the top of the gas storage shell and the upper shell. Inflate the first air chamber through the inflation valve, and the gas enters the second air chamber through the air valve assembly. After inflation stops, the gas in the first air chamber is released and stored in the second air chamber. The air valve assembly includes an installation air cylinder and an inner column. The installation air cylinder is fixedly installed on the air storage shell, and the inner column is slidably installed inside the installation air cylinder. Both ends of the installation air cylinder extend into the first air chamber and the second air chamber, respectively. Both ends of the installation air cylinder are provided with air ports. A sealing structure is installed on the inner top of the installation air cylinder to seal the air ports. The bottom of the inner column is provided with an air passage, and the side of the inner column is provided with multiple air inlets and outlets that are all connected to the air passage. The side of the mounting cylinder located inside the first air chamber is provided with multiple air inlets and outlets. A first compression spring is connected between the bottom of the inner column and the mounting cylinder. The valve assembly also includes a locking mechanism, which is mounted on the mounting cylinder. The output end of the locking mechanism is inserted into the inner column, and the locking mechanism is used to fix the inner column. The sealing structure includes a sealing valve plate, which is rotatably mounted on the inner top of the installation cylinder. A torsion spring is connected between the sealing valve plate and the installation cylinder. Initially, the sealing valve plate seals the air port.

2. The integrated permanent gas storage energy accumulator according to claim 1, characterized in that, The locking mechanism includes a mounting box fixedly connected to the side of the air cylinder. A slider is slidably installed inside the mounting box. A locking tooth is fixedly connected to the side of the slider near the inner column. A slot adapted to the locking tooth is opened on the side of the inner column. A second compression spring is provided between the slider and the mounting box. A second unlocking air hole communicating with the air passage is opened on the side of the inner column. A first unlocking air hole is opened on the side of the mounting box and the mounting air cylinder. When the card tooth is inserted into the card slot, the second unlocking air hole communicates with the first unlocking air hole.

3. The integrated permanent gas storage energy accumulator according to claim 2, characterized in that, The locking mechanism further includes an adjustment assembly, which includes an adjustment plate slidably mounted inside the mounting box, one end of the second compression spring being connected to the adjustment plate, and an adjustment screw being threadedly connected to the side of the mounting box, one end of which is rotatably mounted on the adjustment plate.

4. The integrated permanent gas storage energy accumulator according to claim 1, characterized in that, The upper shell and the hexagonal structure are integrally formed, and the lower shell and the liquid inlet / outlet end are integrally formed.

5. The integrated permanent gas storage energy accumulator according to claim 1, characterized in that, An upper protective cap is provided on the outside of the air valve, and a lower protective cap is fitted on the outer side of the inlet and outlet liquid ends.

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