CN112112845B - A capsule accumulator - Google Patents

Abstract

The utility model relates to a capsule accumulator belongs to the field of energy saving device, including casing and capsule, casing one end is the inlet end, the other end is the inlet end, the inlet end is provided with the admission valve, capsule and admission valve intercommunication, the air valve pole that the admission valve internal fixation both ends link up, air valve pole one end is fixed with the diffusion pole that stretches into in the capsule, the exhaust hole has been seted up on the diffusion pole, the diffusion pole includes dead lever and extension rod, the dead lever both ends link up, and one end is connected with the air valve pole, extension rod one end link up, the extension rod cover establish outside the dead lever and with dead lever sliding connection, all evenly seted up multiseriate exhaust hole along the axial on dead lever and the extension rod lateral wall, exhaust hole on dead lever and the extension rod is located the different generating line of dead lever respectively, be fixed with first spring between the tip that air valve pole was kept away from to dead lever inner wall and extension rod. The application has the effect of preventing the diffusion rod from damaging the capsule when the capsule contracts.

Description

A capsule accumulator

technical field

The present application relates to the field of energy storage devices, in particular to a capsule energy storage device.

Background technique

Accumulator is a device specially designed for accumulating liquid under pressure. Liquid is incompressible in application, and the compressibility of gas is used to achieve the goal of storing energy. An accumulator is an energy storage device in a hydropneumatic system. It converts the energy in the system into compression energy or potential energy at an appropriate time and stores it, and when the system needs it, it converts the compression energy or potential energy into hydraulic or pneumatic energy and releases it, and resupplys the system. When the pressure of the system increases instantaneously, it can absorb this part of the energy to ensure the normal pressure of the whole system.

At present, the Chinese utility model patent with the authorized publication number CN204357791U discloses a bladder-type accumulator provided with a diffuser rod, which includes a casing, a gas valve rod is arranged on the left end of the casing, the left end of the gas valve rod is open, and the other end is open. It is sealed and connected with the opening of the capsule, the air valve rod is a hollow structure, the hollow part of the air valve rod is inserted into the diffuser rod, the diffuser rod is hollow structure, the left end is open, the other end is closed, and is inserted into the capsule. The diffuser rod inserted into the capsule is provided with a plurality of exhaust holes. The gas valve rod is connected to the inflation device, and nitrogen gas is added into the capsule through the exhaust hole on the diffuser rod.

In view of the above-mentioned related technologies, the length of the diffuser rod is fixed. When the gas is charged into the capsule at the inflation end, the oil inlet end of the other end of the energy storage tank is filled with oil into the energy storage tank, the oil compresses the capsule, and the air pressure in the capsule rises. High, when the system needs oil, the air pressure will discharge the liquid. The inventor believes that the capsule may touch the diffuser rod when it shrinks, and the reciprocating for a long time may cause damage to the capsule.

SUMMARY OF THE INVENTION

In order to prevent damage to the capsule caused by the diffusion rod when the capsule shrinks, the present application provides a capsule accumulator.

A kind of capsule energy storage device provided by the application adopts the following technical scheme:

A capsule energy accumulator includes a shell and a capsule, one end of the shell is an air intake end, the other end is an oil intake end, the intake end is provided with an intake valve, the capsule is communicated with the intake valve, and two parts are fixed inside the intake valve. A gas valve rod with a through end, one end of the gas valve rod is fixed with a diffuser rod extending into the capsule, an exhaust hole is opened on the diffuser rod, the diffuser rod includes a fixed rod and an extension rod, the two ends of the fixed rod pass through, and one end is connected with the gas valve The rod is connected, one end of the extension rod passes through, the extension rod is sleeved outside the fixed rod and is slidably connected with the fixed rod. The side walls of the fixed rod and the extension rod are uniformly provided with multiple rows of exhaust holes along the axial direction. The exhaust holes are respectively located on different generatrices of the fixed rod, and a first spring is fixed between the inner wall of the fixed rod and the end of the extension rod away from the gas valve rod.

By adopting the above technical solution, nitrogen gas enters into the diffuser rod through the gas valve rod. When nitrogen is not charged, the extension rod is sleeved and overlapped outside the fixed rod. The exhaust holes are located on different bus lines of the fixed rod, that is, the exhaust holes are arranged in a staggered manner, so the exhaust holes on the fixed rod are blocked, the air pressure in the fixed rod increases, and the rate of nitrogen filling is higher than that of the diffuser rod exhaust. The speed of the extension rod is pushed, the diffuser rod is elongated, the exhaust hole is gradually exposed, and nitrogen enters the capsule through the exhaust hole, buffering the inflation process and reducing the impact on the capsule; The air pressure inside and outside the diffuser rod is balanced. Under the elastic force of the first spring, the extension rod rebounds to the outside of the fixed rod, and the diffuser rod is shortened to prevent the capsule from colliding with the diffuser rod when it shrinks.

Optionally, the distance between two adjacent exhaust holes on the fixing rod is greater than the distance between two adjacent exhaust holes on the extension rod.

By adopting the above technical solution, when nitrogen gas is charged into the fixed rod, due to the large spacing of the vent holes on the fixed rod, the quantity is small, and a small part of nitrogen enters the capsule through the vent holes on the fixed rod, However, most of the nitrogen pushes the extension rod away from the fixed rod, so that the diffuser rod is fully elongated; in addition, there are many exhaust holes on the extension rod, so the nitrogen in the extension rod is dispersed and discharged into the capsule, and the nitrogen gas enters the capsule more gently , the capsule is slowly opened.

Optionally, the number of exhaust holes in each row of the fixed rod and the extension rod is the same.

By adopting the above technical solution, when the nitrogen gas is discharged from the diffusion rod, the capsule can be opened more uniformly.

Optionally, a fixing ring is fixed on the inner wall of the fixing rod and the inner wall of the end of the extension rod away from the gas valve rod, the fixing ring is provided with a fixing groove, and the end of the first spring is fixed in the fixing groove.

By adopting the above technical solution, the fixing ring stabilizes both ends of the first spring, so that the first spring is more stably fixed in the diffuser rod.

Optionally, the outer wall of the fixing rod is provided with a chute extending axially along the fixing rod, a sliding block is fixed on the inner wall of the port of the extension rod, and the sliding block is slidably connected with the sliding groove.

By adopting the above technical solution, when the extension rod and the fixed rod slide relative to each other, the sliding block slides along the chute, so that the extension rod is more stable when sliding. out.

Optionally, a magnetic suction ring is fixed on the outer wall of one end of the fixing rod close to the air valve rod, a soft shielding cloth is sleeved on the outer wall of the fixing rod, one end of the soft shielding cloth is fixed on the end of the extension rod, and the other end is fixed. There is a metal ring, the metal ring is adsorbed on the magnetic ring, and a second spring is sleeved on the outside of the soft shielding cloth. One end of the second spring is fixed on the end of the extension rod, and the other end is fixed on the metal ring. The elastic force of the spring is smaller than the elastic force of the first spring.

By adopting the above technical solution, when nitrogen gas is filled into the diffuser rod, the second spring is pulled apart as the extension rod slides, so the soft cloth is pulled apart and wrapped around the fixed rod, and the The exhaust hole is blocked, allowing more nitrogen to enter the extension rod, pushing the extension rod to slide out from the fixed rod, so that the extension of the diffusion rod is faster; when the extension rod slides out to the farthest position, the first The second spring is stretched beyond its maximum limit, the metal ring is detached from the magnetic ring under the elastic force of the second spring, and the soft covering cloth is folded together with the second spring, so the exhaust hole on the fixing rod is exposed, so the nitrogen The air is also exhausted into the capsule through the exhaust hole on the fixed rod. Under the condition of the same amount of inflation in the diffusion rod, the inflation in the capsule is more gentle.

Optionally, the second spring is fixed on the soft shielding cloth.

By adopting the above technical solution, in the process of extending or shortening the second spring, the second spring pulls the soft shielding cloth and folds it together to prevent the soft shielding cloth from being stuck when the metal ring is separated from the magnetic ring, making the shielding soft When the cloth is expanded or contracted, it is smoother.

Optionally, an oil inlet end is also included, an oil inlet valve is provided on the oil inlet end, and both the inlet valve and the oil inlet valve are connected with a rubber support ring, and the rubber support ring is fixed on the inner walls of the air inlet end and the oil inlet end.

By adopting the above technical solution, the rubber support ring seals the connection between the intake valve and the oil intake valve, so that when the air pressure in the capsule and the oil pressure in the shell increase, the intake valve and the oil intake valve are stable.

Optionally, the oil inlet valve is connected with a bacteria valve, a snap ring is fixed inside the oil inlet valve, one end of the bacteria valve is a bonnet, the other end is a valve stem, and the end of the valve stem away from the valve cap passes through the snap ring, The end of the valve stem is fixed with a clamping block which abuts against the side wall of the retaining ring, and the connecting spring is arranged between the valve cap and the retaining ring.

By adopting the above technical solution, when the capsule is inflated and expanded, the end of the capsule touches the bacteria valve, the bacteria valve is pushed into the oil inlet valve, the valve cap blocks the oil inlet valve port, the connecting spring is compressed, and the oil inlet valve is closed; When the oil enters the housing from the oil inlet valve, the bacteria valve is pushed open, and the clamping block touches the side wall of the snap ring to prevent the bacteria valve from sliding out.

Optionally, the capsule is a rubber airbag.

By adopting the above technical solutions, the rubber airbag, also known as the concrete prefabricated hollow slab rubber inflatable core mold and the rubber inner mold, is a kind of inflatable and shrinkable shape of different shapes which is vulcanized by using the polymer properties of rubber and high-strength fiber cloth. In the inner mold, after the rubber airbag is filled with compressed air, the capsule expands and expands to meet the design requirements of its cross-section. The inflation pressure is determined according to the manufacturer's logo.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. Nitrogen enters the capsule uniformly through the exhaust holes on the diffuser rod, buffering the inflation process and reducing the impact on the capsule, and when the intake end no longer takes in air, the air pressure inside and outside the diffuser rod is balanced, and the extension rod rebounds to On the fixed rod, the diffuser rod is automatically shortened to prevent the capsule from colliding with the diffuser rod when it shrinks, reducing the possible damage to the capsule;

2. When nitrogen gas is filled into the diffuser rod, the second spring is pulled apart as the extension rod slides, so the soft cloth is pulled away and wrapped around the fixed rod, and the exhaust hole on the fixed rod is closed. Blocking, so that more nitrogen gas enters the extension rod, and pushes the extension rod to slide out of the fixed rod, so that the extension of the diffuser rod is faster;

3. A small part of nitrogen enters the capsule through the exhaust hole on the fixed rod, but most of the nitrogen pushes the extension rod away from the fixed rod, so that the diffusion rod is fully elongated; the nitrogen discharged from the extension rod is softer, which makes the filling The impact of the nitrogen on the capsule is small.

Description of drawings

Fig. 1 is the overall structure sectional view of the present application;

Fig. 2 is the partial enlarged schematic diagram of A part in Fig. 1;

Fig. 3 is the structural representation of the oil inlet valve and the bacteria valve in the present application;

Fig. 4 is the structural schematic diagram when the diffuser rod is elongated in the present application;

Fig. 5 is the structural representation when the metal ring is adsorbed on the magnetic attraction ring in the present application;

FIG. 6 is a schematic diagram of the structure of the present application when the metal ring is detached from the magnetic attraction ring after the diffusion rod is elongated and the covering soft cloth is folded.

Description of reference numerals: 1. Housing; 2. Inlet end; 3. Oil inlet; 4. Capsule; 5. Protective cap; 6. Rubber support ring; 7. Intake valve; 8. Air valve stem; 9 , Diffusion rod; 91, Fixed rod; 911, Chute; 92, Extension rod; 921, Slider; 93, Exhaust hole; 94, Magnetic suction ring; 95, Metal ring; 96, Blocking soft cloth; 97, Section Two springs; 98, connecting ring; 10, oil inlet valve; 101, snap ring; 11, bacteria valve; 111, bonnet; 112, valve stem; 113, snap; 12, connecting spring; 13, fixing ring; 131. The fixing groove; 14. The first spring.

Detailed ways

The present application will be further described in detail below in conjunction with accompanying drawings 1-6.

The embodiment of the present application discloses a capsule energy storage device. Referring to FIGS. 1 and 2 , the energy accumulator includes a casing 1 , and two ends of the casing 1 are an air intake end 2 and an oil intake end 3 respectively. A capsule 4 is also arranged in the casing 1 , and the capsule 4 communicates with the air intake end 2 . .

The air inlet end 2 is provided with a protective cap 5, the end sidewall of the protective cap 5 extending into the casing 1 is fixed with a rubber support ring 6, the rubber support ring 6 is fixed on the inner wall of the casing 1, and the rubber support ring 6 makes the air intake The connection between valve 7 and housing 1 is sealed.

An intake valve 7 is arranged inside the protective cap 5, one end of the intake valve 7 protrudes into the interior of the housing 1, the capsule 4 is fixed on the end of the intake valve 7 that protrudes into the housing 1, and an air intake valve 7 is fixed inside. The valve rod 8, the gas valve rod 8 is hollow, and the two ends are connected, and the end of the gas valve rod 8 close to the capsule 4 is fixed with a diffuser rod 9, the diffuser rod 9 extends into the capsule 4, and the diffuser rod 9 diffuses the nitrogen gas capsule 4 to the capsule 4. Inside.

The oil inlet end 3 includes an oil inlet valve 10 fixed on the casing 1 , the end of the oil inlet valve 10 extending into the casing 1 is fixed with a rubber support ring 6 , and the rubber support ring 6 is fixed on the inner wall of the casing 1 . The backing ring 6 seals the connection between the oil inlet valve 10 and the housing 1 .

The oil inlet valve 10 is hollow and has two ends that pass through. The oil inlet valve 10 is provided with a bacteria-type valve 11 , and the bacteria-type valve 11 is connected with the oil inlet valve 10 . One end of the fungus valve 11 is a bonnet 111 , and the other end is a valve stem 112 . Referring to FIG. 3 , the opening at the end of the oil inlet valve 10 is adapted to the size and shape of the bonnet 111 , and the oil inlet valve 10 is also provided with a snap ring 101 . On the inner wall of the oil inlet valve 10 , the valve stem 112 penetrates the center of the snap ring 101 and is slidably connected with the snap ring 101 .

1 and 2 , the valve stem 112 is provided with a connecting spring 12 , one end of the connecting spring 12 is in contact with the fungus valve 11 , and the other end is fixed with the snap ring 101 . When the capsule 4 is inflated and expanded, the end of the capsule 4 touches the fungus valve 11, the fungus valve 11 is pushed into the oil inlet valve 10, the connecting spring 12 is compressed, the valve cap 111 blocks the port of the oil inlet valve 10, and the oil inlet valve 10 is closed. When the oil enters the housing 1 from the oil inlet valve 10 , the fungus valve 11 is pushed open, and the clamping block 113 abuts against the retaining ring 101 to prevent the fungus valve 11 from popping out. After the oil is fed, the capsule 4 is compressed, and the gas and liquid pressures are balanced.

When the system needs oil, the oil is discharged from the oil inlet end 3, the air pressure in the housing 1 is greater than the oil pressure, and the capsule 4 pushes the oil to be discharged from the oil inlet end 3 until the air pressure and oil pressure are balanced, the capsule 4 stops expanding.

The capsule 4 is a rubber capsule, which is an inflatable and shrinkable inner mold of different shapes, which is vulcanized by using the polymer properties of rubber and high-strength fiber cloth.

1 and 2, the diffuser rod 9 includes a fixed rod 91 and an extension rod 92, the fixed rod 91 and the extension rod 92 are both hollow, the two ends of the fixed rod 91 pass through, one end is fixed on the gas valve rod 8, and is connected with the gas valve rod 8 is connected internally, one end of the extension rod 92 is penetrating, and the other end is closed.

4 , a chute 911 is formed on the outer wall of the fixed rod 91 , and a sliding block 921 protrudes from the inner wall of the open end of the extension rod 92 . Referring to FIGS. 1 and 2 , one end of the chute 911 away from the gas valve rod 8 does not pass through, so as to prevent the extension rod 92 from being detached from the fixed rod 91 .

Referring to FIG. 4 , the side walls of the fixed rod 91 and the extension rod 92 are uniformly provided with a plurality of rows of exhaust holes 93 in the axial direction, and the distance between the adjacent two exhaust holes 93 on the fixed rod 91 is greater than that of the adjacent ones on the extension rod 92 . The distance between the two exhaust holes 93, the number of the exhaust holes 93 on the fixed rod 91 and the extension rod 92 in each row is the same, and nitrogen gas enters the capsule 4 through the exhaust hole 93, so that the nitrogen gas slowly and evenly enters the various parts in the capsule 4. Orientation, the impact on the capsule 4 is small.

1 and 2, a fixing ring 13 is fixed on the inner wall of the fixing rod 91, an annular fixing groove 131 is opened on the inner wall of the fixing ring 13, and a fixing ring is also fixed on the inner wall of the end of the extension rod 92 away from the valve rod 8 13. A first spring 14 is fixed between the two fixing rings 13 , two ends of the first spring 14 are respectively clamped into the fixing grooves 131 and fixed with the fixing ring 13 , and the fixing ring 13 makes the first spring 14 firmly fixed on the diffuser rod within 9.

Referring to FIG. 5 , a magnetic ring 94 is fixed on the outer wall of the end of the fixing rod 91 close to the valve rod 8 , and a soft covering cloth 96 is sleeved on the outer wall of the fixing rod 91 , and the soft covering cloth 96 is foldable. A connecting ring 98 is fixed on one end surface of the extension rod 92 close to the magnetic attraction ring 94 . A second spring 97 is also sleeved on the outer side of the soft shielding cloth 96 , one end of the second spring 97 is fixed on the connecting ring 98 , and the other end is fixed on the metal ring 95 . The elastic force of the second spring 97 is smaller than the elastic force of the first spring 14 . Referring to FIGS. 2 and 5 , when not inflated, the elastic force of the first spring 14 pulls the extension rod 92 to be sleeved on the fixed rod 91 , while the elastic force of the second spring 97 pulls the soft covering cloth 96 to roll up together, and at this time The exhaust holes 93 on the fixed rod 91 and the extension rod 92 are located on different bus lines of the fixed rod 91 respectively, that is, the exhaust holes 93 are staggered, so the exhaust holes 93 in the fixed rod 91 are blocked. When nitrogen is filled into the capsule 4 through the diffuser rod 9, the air pressure in the fixed rod 91 increases. Referring to FIG. 1 and FIG. 5, the nitrogen gas pushes the extension rod 92 to slide out of the fixed rod 91. As the extension rod 92 slides, the second spring 97 is pulled open, the soft shielding cloth 96 is pulled open, the soft shielding cloth 96 is wrapped around the outside of the fixing rod 91, the exhaust hole 93 on the fixing rod 91 is blocked, and the air permeability of the soft shielding cloth 96 is poor, so nitrogen Continuously entering the diffuser rod 9, the extension rod 92 is pushed by nitrogen gas to slide along the chute 911, the extension rod 92 is pushed by the gas to slowly slide along the chute 911, more and more exhaust holes 93 are exposed, and the nitrogen gas is slowly filled into capsule 4.

6, when the extension rod 92 slides out to the farthest position on the fixed rod 91, the second spring 97 is stretched to the limit, at this time the metal ring 95 is separated from the magnetic ring 94, the second spring 97 shrinks and pulls The soft shielding cloth 96 is folded up, the exhaust hole 93 on the fixing rod 91 is exposed, and the nitrogen gas is discharged through the exhaust hole 93 on the fixing rod 91 . Moreover, since the speed of filling nitrogen gas is greater than the exhaust speed of the diffuser rod 9, when the diffuser rod 9 is inflated into the capsule 4, the first spring 14 is always in a stretched state.

Referring to FIG. 1 , at the same time, due to the small interval between the exhaust holes 93 on the extension rod 92 , that is, the larger number, the nitrogen gas in the extension rod 92 is dispersed, and thus enters the capsule 4 more gently.

1 and 2, when the intake valve 7 stops air intake, the air pressure inside and outside the diffuser rod 9 is balanced. Under the elastic force of the first spring 14, the extension rod 92 is pulled and slides along the chute 911 until it extends The rod 92 is sleeved on the fixed rod 91 . Therefore, the length of the diffusing rod 9 is shortened, and when the capsule 4 is compressed, it is difficult for the capsule 4 to touch the end of the diffusing rod 9, thus reducing the possible damage to the diffusing rod 9.

Referring to FIG. 5 , after the extension rod 92 is sleeved back on the fixed rod 91 , the soft cloth 96 is blocked and pushed close to the magnetic ring 94 , and the metal ring 95 is adsorbed on the magnetic ring 94 .

The implementation principle of a capsule energy storage device in the embodiment of the present application is as follows: firstly, nitrogen gas is pre-charged into the capsule 4 through the intake valve 7 , and the nitrogen gas first enters the diffuser rod 9 through the gas valve rod 8 . Before inflating, the extension rod 92 is sleeved on the fixed rod 91; with the filling of nitrogen, the air pressure in the fixed rod 91 increases, the nitrogen pushes the extension rod 92 to slide along the chute 911, the diffuser rod 9 is extended, and the air is exhausted. The holes 93 are exposed one by one, and nitrogen gas enters the capsule 4 through the exhaust holes 93 .

The capsule 4 is gradually expanded by nitrogen gas. When the intake valve 7 is no longer filled with nitrogen gas, the first spring 14 pulls the extension rod 92 and sets it back to the fixed rod 91, and the diffuser rod 9 shortens.

With the continuous filling and discharge of oil in the oil inlet valve 10 , the capsule 4 shrinks and expands repeatedly, and the capsule 4 does not touch the diffusion rod 9 .

The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the scope of the present application. Inside.

Claims (10)

1. The utility model provides a capsule energy storage ware, includes casing (1) and capsule (4), and casing (1) one end is inlet end (2), and inlet end (2) are provided with admission valve (7), and capsule (4) and admission valve (7) intercommunication, air valve rod (8) that admission valve (7) internal fixation both ends link up, and air valve rod (8) one end is fixed with diffusion pole (9) that stretch into in capsule (4), has seted up exhaust hole (93) on diffusion pole (9), its characterized in that: diffusion pole (9) are including dead lever (91) and extension rod (92), and dead lever (91) both ends link up, and one end is connected with air valve rod (8), and extension rod (92) one end link up, and extension rod (92) cover establish outside dead lever (91) and with dead lever (91) sliding connection, all evenly seted up multiseriate exhaust hole (93) along the axial on dead lever (91) and extension rod (92) lateral wall, exhaust hole (93) on dead lever (91) and extension rod (92) are located the different generating line of dead lever (91) respectively, be fixed with first spring (14) between the tip that air valve rod (8) were kept away from to dead lever (91) inner wall and extension rod (92).

2. A capsule accumulator as claimed in claim 1, characterized in that: the distance between two adjacent rows of air holes (93) on the fixing rod (91) is larger than that between two adjacent rows of air holes (93) on the extension rod (92).

3. A capsule accumulator as claimed in claim 1 or 2, characterized in that: the fixed rod (91) and the extending rod (92) are provided with the same number of exhaust holes (93) in each row.

4. A capsule accumulator as claimed in claim 1, characterized in that: the inner wall of the end part of the fixing rod (91) and the inner wall of the end part of the extension rod (92) far away from the air valve rod (8) are fixed with fixing rings (13), fixing grooves (131) are formed in the fixing rings (13), and the end part of a first spring (14) is fixed in the fixing grooves (131).

5. A capsule accumulator as claimed in claim 1, characterized in that: offer on dead lever (91) outer wall along the spout (911) of dead lever (91) axial extension, extension rod (92) port inner wall is fixed with slider (921), slider (921) and spout (911) sliding connection.

6. A capsule energy storage device as claimed in any one of claims 1, 2, 4 and 5, characterized in that: fixed with magnetism on the one end outer wall that is close to air valve pole (8) on dead lever (91) and inhale ring (94), the cover is equipped with on dead lever (91) outer wall and shelters from soft cloth (96), shelter from soft cloth (96) one end and fix at extension rod (92) tip, the other end is fixed with becket (95), becket (95) adsorbs on magnetism is inhaled ring (94), still the cover is equipped with second spring (97) in the outside of sheltering from soft cloth (96), the tip at extension rod (92) is fixed to the one end of second spring (97), the other end is fixed on becket (95), the elasticity of second spring (97) is less than the elasticity of first spring (14).

7. A capsule accumulator as claimed in claim 6, characterized in that: the second spring (97) is fixed on the shielding soft cloth (96).

8. A capsule accumulator as claimed in claim 1, characterized in that: the oil inlet valve is characterized by further comprising an oil inlet end (3), wherein the oil inlet end (3) is provided with an oil inlet valve (10), the air inlet valve (7) and the oil inlet valve (10) are both connected with rubber supporting rings (6), and the rubber supporting rings (6) are fixed on the inner walls of the air inlet end (2) and the oil inlet end (3).

9. A capsule accumulator as claimed in claim 8, characterized in that: oil inlet valve (10) are connected with bacterial type valve (11), and oil inlet valve (10) inside is fixed with snap ring (101), and bacterial type valve (11) one end is valve cap (111), and the other end is valve rod (112), and snap ring (101) are passed to the one end that valve cap (111) were kept away from in valve rod (112), and the end fixing of valve rod (112) has fixture block (113) of contradicting snap ring (101) lateral wall, and coupling spring (12) set up between valve cap (111) and snap ring (101).

10. A capsule accumulator as claimed in claim 1, characterized in that: the capsule (4) is a rubber air bag.

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