CN114165488A

CN114165488A - Bag type energy accumulator

Info

Publication number: CN114165488A
Application number: CN202111557258.8A
Authority: CN
Inventors: 江志杰
Original assignee: Zhejiang Aolaier Hydraulic Co ltd
Current assignee: Zhejiang Aolaier Hydraulic Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2022-03-11

Abstract

The application relates to a bag type energy accumulator which comprises a shell, an inflation valve positioned on the upper side of the shell, a capsule positioned in the shell and a hydraulic oil valve arranged at the bottom of the shell, wherein a fixed cavity used for containing the capsule is arranged in the shell, a mounting hole communicated with the fixed cavity is formed in the top of the shell, a mounting seat is detachably connected in the mounting hole, a positioning seat is detachably connected to the inner side of the mounting seat, and a flow distribution piece used for dispersing air flow is detachably connected in the positioning seat; the reposition of redundant personnel piece includes the intake pipe and fixes the hollow reposition of redundant personnel ball that sets up in the intake pipe bottom, the inflation valve intercommunication sets up the upside at the intake pipe, capsule fixed connection is in the intake pipe, the inner chamber of hollow reposition of redundant personnel ball and the middle part through-hole intercommunication of intake pipe, and evenly distributed has a plurality of diffluence holes on the ball wall of hollow reposition of redundant personnel ball, the inner chamber of diffluence hole and hollow reposition of redundant personnel ball and the inner chamber intercommunication of capsule. This application has capsule long service life's effect.

Description

Bag type energy accumulator

Technical Field

The application relates to the technical field of energy accumulators, in particular to a bag type energy accumulator.

Background

The bag type accumulator is an energy storage device in a hydraulic pneumatic system, is usually arranged in a hydraulic pipeline and is used for absorbing pulsation generated by fluid in the pipeline so as to prevent the hydraulic pipeline from being influenced by pressure, noise, vibration and the like.

The existing bladder accumulator generally includes a housing, a bladder sealingly disposed in the housing, an inflation valve disposed at a top of the housing and in communication with the bladder, and a hydraulic oil valve disposed at a bottom of the housing and in communication with an interior cavity of the housing. When in use, the energy accumulator is connected to a pipeline, nitrogen is filled into the capsule through the inflation valve, and the capsule expands under the action of the nitrogen. When the oil pressure in the pipeline is larger, the hydraulic oil valve is opened under the action of the oil pressure, and part of the oil in the pipeline enters the shell through the hydraulic oil valve; along with the gradual increase of the volume of the oil liquid between the shell and the capsule, the capsule can be pressed and deformed, so that the volume of the nitrogen in the capsule is reduced along with the increase of the pressure, and the oil liquid is gradually stored; when the oil pressure in the pipeline is reduced, the oil in the shell can be discharged through the hydraulic oil valve under the action of the capsule, so that the oil pressure energy in the pipeline is compensated.

However, in most of the bag-type accumulators on the market, the air inlet direction from the charging valve to the capsule is single, and the capsule is subjected to the air inlet pressure in the single direction for a long time, so that the risk of local strength reduction and even bursting easily occurs, the service life of the capsule is shortened, and improvement is needed.

Disclosure of Invention

To extend the service life of the capsule, the present application provides a bladder accumulator.

The application provides a capsule type energy accumulator adopts following technical scheme:

a bag type energy accumulator comprises a shell, an inflation valve, a capsule and a hydraulic oil valve, wherein the inflation valve is positioned on the upper side of the shell, the capsule is positioned in the shell, the hydraulic oil valve is arranged at the bottom of the shell, a fixing cavity for containing the capsule is arranged in the shell, the top of the shell is provided with an installation hole communicated with the fixing cavity, an installation seat is detachably connected in the installation hole, the inner side of the installation seat is detachably connected with a positioning seat, and a flow distribution piece for dispersing air flow is detachably connected in the positioning seat; the reposition of redundant personnel piece includes the intake pipe and fixes the hollow reposition of redundant personnel ball that sets up in the intake pipe bottom, the inflation valve intercommunication sets up the upside at the intake pipe, capsule fixed connection is in the intake pipe, the inner chamber of hollow reposition of redundant personnel ball and the middle part through-hole intercommunication of intake pipe, and evenly distributed has a plurality of diffluence holes on the ball wall of hollow reposition of redundant personnel ball, the inner chamber of diffluence hole and hollow reposition of redundant personnel ball and the inner chamber intercommunication of capsule.

By adopting the technical scheme, when the energy accumulator works, nitrogen can be input into the air inlet pipe through the inflation valve, then is discharged into the inner cavity of the hollow shunting ball through the air inlet pipe, and finally is uniformly diffused into the capsule through the shunting holes. The flow dividing piece can disperse and uniformly output the nitrogen input by the inflation valve into the capsule, so that the capsule is not easy to weaken local strength due to long-term single air inlet pressure, and the service life of the capsule is effectively prolonged. After the capsule is aged due to long-term use, an operator can remove the mounting seat from the shell, the positioning seat from the mounting seat and the flow dividing piece from the positioning seat so as to replace the flow dividing piece and the air bag with new ones, thereby prolonging the service life of the energy accumulator.

Optionally, the capsule includes an inner bag and an outer bag covering the outer side of the inner bag, and the top ends of the inner bag and the outer bag are both connected to the air inlet pipe in a sealing manner.

By adopting the technical scheme, the capsule is of a double-layer structure, so that the overall thickness of the capsule can be enhanced, and the structural strength of the capsule can be improved; after the inner capsule is burst and damaged, the outer capsule can also play the energy storage role of the capsule, and the service life of the capsule is further prolonged.

Optionally, a plurality of first reinforcing ribs are integrally formed on the side wall of the inner bag, and a plurality of second reinforcing ribs are integrally formed on the side wall of the outer bag.

By adopting the technical scheme, the first reinforcing ribs play a role in enhancing the structural strength of the inner bag and are used for prolonging the service life of the inner bag; the second reinforcing rib plays the effect of reinforcing outer bag structural strength for the life of extension outer bag.

Optionally, a thread groove is formed in the circumferential side wall of the air inlet pipe, the top ends of the inner bag and the outer bag are fixed in the thread groove, and a pressing ring used for pressing the fixed ends of the inner bag and the outer bag is connected to the thread groove in a threaded mode.

Through adopting above-mentioned technical scheme, behind the open end of inner bag and outer bag was fixed in the circumference lateral wall of intake pipe, operating personnel can will support the stiff end precession of pressing the hoop inner bag and outer bag to make the butt ring compress tightly the stiff end of inner bag and outer bag, thereby further improve the sealed effect of inner bag and outer bag, not do when avoiding inner bag and outer bag because of operating personnel installs and seal and cause gas leakage.

Optionally, the mounting seat includes a first mounting ring and a second mounting ring which are integrally formed, an outer diameter of the first mounting ring is larger than an inner diameter of the mounting hole, an outer diameter of the second mounting ring is smaller than the inner diameter of the mounting hole, and the mounting seat is provided with a connecting hole which penetrates through the first mounting ring and the second mounting ring; a plurality of horizontally extending pushing grooves are formed in the circumferential inner wall of the second mounting ring, horizontally extending limiting holes are formed in the wall, away from the connecting hole, of each pushing groove, a pushing block is arranged in each pushing groove in a sliding mode, a limiting block fixedly connected with each pushing block is arranged in each limiting hole in a sliding mode, a reset spring is arranged between each pushing block and the wall of each pushing groove, and a guide inclined surface facing obliquely upwards is arranged at one end, away from the limiting block, of each pushing block; when the reset spring is in a natural state, the guide inclined plane is positioned in the connecting hole, and the limiting block is positioned in the limiting hole; when the return spring is in a compressed state, the limiting block extends out of the second mounting ring.

Through adopting above-mentioned technical scheme, during the assembly mount pad, stretch into the mounting hole with the second collar earlier, until first collar and casing butt, reset spring is in the natural state that does not receive tensile or compression this moment, and the stopper is accomodate in spacing hole, can not disturb being connected of mount pad and casing. Then stretch into the connecting hole with the positioning seat from top to bottom, at the in-process that the positioning seat removed, the direction inclined plane received the pressure effect of positioning seat and can progressively compress reset spring for the ejector pad is released the stopper second collar, and the stopper butt plays the effect that hinders mount pad and casing separation on the inner wall of casing this moment. The fastening connection of the mounting seat and the shell can be synchronously realized during the assembly of the positioning seat, and the device has the advantages of simple and convenient operation, high assembly efficiency and good connection stability.

Optionally, the lower side of the first mounting ring is fixedly connected with a first sealing ring, and the circumferential outer wall of the second mounting ring is fixedly connected with a second sealing ring.

Through adopting above-mentioned technical scheme, the mount pad is connected the back that targets in place with the casing, and first sealing washer can produce compression deformation and support tightly between first collar and casing, and the second sealing washer can produce compression deformation and support tightly between the pore wall of second collar and mounting hole to fill the gap that mount pad and casing formed, so as to avoid the gas in the capsule or in the fixed chamber to reveal from above-mentioned clearance, help the leakproofness of guarantee energy storage ware.

Optionally, the diameter of the hollow shunt ball is smaller than the inner diameter of the mounting hole and larger than the inner diameter of the connecting hole.

Through adopting above-mentioned technical scheme, during the equipment energy storage ware, operating personnel can stretch into fixed chamber with the hollow reposition of redundant personnel ball in the reposition of redundant personnel piece earlier, stretch into the mounting hole with the mount pad again, assembles the positioning seat at last. After the assembly is in place, the hollow shunting ball is prevented from moving upwards to be separated from the shell due to the fact that the diameter of the hollow shunting ball is larger than the inner diameter of the connecting hole and is blocked by the mounting seat, and therefore when the capsule moves towards the hollow shunting ball under the action of air suction, the hollow shunting ball cannot move out of the shell under the action of pressure formed by negative pressure, and the accumulator is good in integrity.

Optionally, the positioning seat includes a first positioning ring, a connecting thread is arranged on a hole wall of the connecting hole, and a positioning external thread matched with the connecting thread is arranged on a circumferential outer wall of the first positioning ring; the air inlet pipe is characterized in that fastening threads are arranged on the circumferential outer wall of the air inlet pipe, and positioning internal threads matched with the fastening threads are arranged on the circumferential inner wall of the first positioning ring.

Through adopting above-mentioned technical scheme, the positioning seat passes through the location external screw thread with the mount pad and links to each other with connecting thread, and the positioning seat passes through the location internal thread with the intake pipe and links to each other with fastening thread. When the positioning seat is assembled, an operator only needs to keep the mounting seat and the air inlet pipe still and rotate the positioning seat independently, and the positioning seat is easy and convenient to operate and high in stability after being assembled in place.

Optionally, the positioning seat further comprises a second positioning ring integrally formed at the top end of the circumferential side wall of the first positioning ring, the outer diameter of the second positioning ring is larger than the inner diameter of the connecting hole, and a rubber pad is fixedly connected to the lower side of the second positioning ring.

By adopting the technical scheme, after the first positioning ring is screwed in place, the second positioning ring is abutted against the upper side of the mounting seat, so that the limiting effect can be achieved, and the second positioning ring is not easy to be detached due to the fact that the second positioning ring is screwed too deeply; still play the effect of hard seal for gaseous being difficult for overflowing from the connecting gap of positioning seat and mount pad, improved the leakproofness of energy storage ware. The rubber pad separates and keeps off between second holding ring and mount pad, and after the positioning seat was screwed, the rubber pad received the pressure effect of second holding ring and can produce deformation to fill the clearance of second holding ring and first mount pad, thereby further improve the leakproofness between positioning seat and the mount pad.

Optionally, the top surface of the positioning seat is provided with an inner hexagonal groove.

Through adopting above-mentioned technical scheme, hexagonal recess can supply to stretch into with the screwdriver of its adaptation, makes things convenient for operating personnel rotating positioning seat.

In summary, the present application includes at least one of the following beneficial technical effects:

the energy accumulator is provided with a flow dividing member for dispersing air flow, and air input by the inflation valve can be uniformly diffused into the capsule through different flow dividing holes, so that the condition that the strength of the capsule is reduced due to the fact that the capsule is locally subjected to air inlet pressure in a single direction for a long time is avoided, and the service life of the capsule is prolonged;

the capsule is of a double-layer structure of an inner capsule and an outer capsule, the capsule is large in thickness and high in strength, is not easy to burst and damage under the action of gas pressure during inflation, and is long in service life;

the positioning seat is assembled between the mounting seat and the air inlet pipe in a threaded connection mode, and the positioning seat is easy and convenient to operate during disassembly and assembly and high in relative stability of all parts after being assembled in place.

Drawings

Fig. 1 is a schematic cross-sectional view of an embodiment of the present application.

Fig. 2 is an enlarged schematic view at a in fig. 1.

Description of reference numerals:

1. a housing; 11. a fixed cavity; 12. mounting holes; 2. an inflation valve; 3. a capsule; 31. an inner bag; 311. a first reinforcing rib; 32. an outer bladder; 321. a second reinforcing rib; 4. a hydraulic oil valve; 5. a mounting seat; 51. a first mounting ring; 511. a first seal ring; 52. a second mounting ring; 521. a second seal ring; 53. connecting holes; 531. connecting threads; 54. a pushing groove; 55. a limiting hole; 56. a push block; 561. a guide slope; 57. a return spring; 58. a limiting block; 6. positioning seats; 61. a first positioning ring; 611. positioning the external thread; 612. positioning the internal thread; 62. a second positioning ring; 621. a rubber pad; 63. an inner hexagonal groove; 7. a flow divider; 71. an air inlet pipe; 711. a thread groove; 712. pressing the ring; 713. fastening threads; 72. a hollow shunt ball; 73. and a shunt hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a bag type energy accumulator. Referring to fig. 1 and 2, the bag accumulator includes a housing 1, an inflation valve 2 located on the upper side of the housing 1, a bag 3 located inside the housing 1, and a hydraulic oil valve 4 disposed at the bottom of the housing 1, where the inflation valve 2 and the hydraulic oil valve 4 in this embodiment are conventional structures in the prior art, and detailed descriptions thereof are omitted here. The top of casing 1 can be dismantled and be connected with mount pad 5, and the inboard of mount pad 5 can be dismantled and be connected with positioning seat 6, and the inboard of positioning seat 6 can be dismantled and be connected with reposition of redundant personnel 7, and wherein reposition of redundant personnel 7 is used for the dispersion by the gas-charging valve 2 combustion gas to avoid capsule 3 to break damage because of enduring the air inlet pressure of unidirectional for a long time.

Referring to fig. 1 and 2, a fixing cavity 11 for accommodating the capsule 3 is formed in the housing 1, a mounting hole 12 communicated with the fixing cavity 11 is formed in the top of the housing 1, and the mounting seat 5 is assembled in the mounting hole 12. The mounting seat 5 includes a first mounting ring 51 and a second mounting ring 52 which are integrally formed, the first mounting ring 51 and the second mounting ring 52 are coaxially disposed, and the first mounting ring 51 is located on the upper side of the second mounting ring 52. The outer diameter of the first mounting ring 51 is larger than the inner diameter of the mounting hole 12, and the outer diameter of the second mounting ring 52 is smaller than the inner diameter of the mounting hole 12, so that the second mounting ring 52 can extend into the mounting hole 12, but the first mounting ring 51 cannot extend into the mounting hole 12.

Referring to fig. 1 and 2, the mounting seat 5 is provided with a connection hole 53 penetrating through the first mounting ring 51 and the second mounting ring 52, and the connection hole 53 extends in a vertical direction. Seted up a plurality of grooves 54 of advancing on the circumference inner wall of second collar 52, a plurality of grooves 54 of advancing are the circumference equipartition along the axis of second collar 52, and every groove 54 of advancing all has seted up spacing 55 on keeping away from the cell wall of connecting hole 53, and spacing hole 55 all extends along the horizontal direction with advancing groove 54. The minimum distance between the limiting hole 55 and the first mounting ring 51 is slightly larger than the thickness of the housing 1, and when the first mounting ring 51 abuts against the housing 1, the limiting hole 55 is located in the fixing cavity 11.

Referring to fig. 1 and 2, a pushing block 56 is slidably disposed in the pushing groove 54, a limiting block 58 is slidably disposed in the limiting hole 55, and the limiting block 58 is fixedly connected to a side of the pushing block 56 away from the connecting hole 53. Two return springs 57 are arranged on one side of the push block 56 close to the limiting block 58, one end of each return spring 57 is fixedly connected to the push block 56, and the other end of each return spring 57 is fixedly connected to the wall of the pushing groove 54 far away from the connecting hole 53. When the return spring 57 is in a natural state, one end of the push block 56 is located in the connection hole 53, and the limit block 58 is received in the limit hole 55, so that the limit block 58 does not interfere with the second mounting ring 52 extending into the mounting hole 12.

Referring to fig. 1 and 2, one end of the push block 56 away from the stopper 58 is provided with a guide inclined surface 561, the guide inclined surface 561 faces obliquely upward, and when the return spring 57 is in the natural state, one end of the guide inclined surface 561 is located in the connection hole 53. When the subsequent positioning seat 6 extends into the connecting hole 53, the guiding inclined plane 561 is pressed by the positioning seat 6 to push the limiting block 58 out of the second mounting ring 52, and at this time, the limiting block 58 abuts against the inner side of the housing 1 to prevent the mounting seat 5 from coming off the housing 1.

Referring to fig. 1 and 2, in order to improve the sealing performance between the mounting seat 5 and the housing 1 when the mounting seat is assembled to the housing 1, a first seal ring 511 is fixedly connected to a lower side surface of the first mounting ring 51, a second seal ring 521 is fixedly connected to a circumferential outer wall of the second mounting ring 52, and the first seal ring 511 and the second seal ring 521 are made of the same material and are made of polytetrafluoroethylene rings. After the mounting seat 5 is assembled in place, the first sealing ring 511 is tightly abutted between the first mounting ring 51 and the housing 1, and the second sealing ring 521 is tightly abutted between the second mounting ring 52 and the hole wall of the mounting hole 12, so that the effect of preventing gas from leaking from the gap between the mounting hole 12 and the mounting seat 5 is achieved, and the sealing effect is good.

Referring to fig. 1 and 2, the flow divider 7 includes an air inlet pipe 71 and a hollow flow dividing ball 72 fixedly disposed at the bottom of the air inlet pipe 71, wherein the hollow flow dividing ball 72 is made of stainless steel and is provided with an inner cavity communicated with a through hole in the middle of the air inlet pipe 71. A plurality of shunting holes 73 are uniformly distributed on the ball wall of the hollow shunting ball 72. The gas supplied from the gas inlet pipe 71 enters the hollow flow dividing ball 72 and is uniformly discharged out of the hollow flow dividing ball 72 through the flow dividing holes 73.

Referring to fig. 1 and 2, the capsule 3 includes an inner bag 31 and an outer bag 32 covering the outer side of the inner bag 31, a hollow diverting ball 72 is located in the inner bag 31, and a diverting hole 73 communicates with the cavity of the inner bag 31, and gas discharged from the diverting hole 73 enters the inner bag 31. The circumferential outer wall of the air inlet pipe 71 is provided with a threaded groove 711, the top ends of the inner bag 31 and the outer bag 32 are hermetically connected to the wall of the threaded groove 711, and the fixed end of the outer bag 32 is positioned right above the fixed end of the inner bag 31. In order to further improve the sealing performance when the inner bag 31 and the outer bag 32 are assembled in the air inlet pipe 71, the pressing ring 712 is screwed in the screw groove 711, and after the inner bag 31 and the outer bag 32 are assembled in place, the pressing ring 712 can be screwed to abut against the fixed ends of the inner bag 31 and the outer bag 32, so that the sealing performance of the capsule 3 is further improved.

Referring to fig. 1 and 2, in order to improve the structural strength of the capsule 3, a plurality of first beads 311 are integrally formed on the outer sidewall of the inner bag 31, the first beads 311 are uniformly distributed along the circumferential sidewall of the inner bag 31, and the first beads 311 may be disposed at positions corresponding to the diversion holes 73 in order to improve the reinforcing effect of the first beads 311. The outer side wall of the outer bag 32 is integrally formed with a second reinforcing rib 321, and the second reinforcing rib 321 is arranged at the bottom of the outer bag 32 to play a role in enhancing the compressive strength of the bottom end of the outer bag 32.

Referring to fig. 1 and 2, the positioning seat 6 includes a first positioning ring 61 and a second positioning ring 62 which are integrally formed, the second positioning ring 62 is coaxially disposed at the top end of the circumferential side wall of the first positioning ring 61, the outer diameter of the first positioning ring 61 is slightly smaller than the inner diameter of the connecting hole 53, and the outer diameter of the second positioning ring 62 is larger than the inner diameter of the connecting hole 53, so that the first positioning ring 61 can extend into the connecting hole 53, and the second positioning ring cannot extend into the connecting hole 53.

Referring to fig. 1 and 2, a positioning external thread 611 is arranged on the circumferential outer wall of the first positioning ring 61, and a connecting thread 531 matched with the positioning external thread 611 is arranged on the hole wall of the connecting hole 53; the circumferential inner wall of the first positioning ring 61 is provided with a positioning inner thread 612, the circumferential outer wall of the air inlet pipe 71 is provided with a fastening thread 713 which is matched with the positioning inner thread 612, and the spiral directions of the positioning outer thread 611 and the positioning inner thread 612 are the same in this embodiment. Before assembling the positioning seat 6, the flow divider 7 extends into the fixing cavity 11, the mounting seat 5 extends into the mounting hole 12, the air inlet pipe 71 and the second mounting ring 52 are kept stationary, and an operator can rotate the positioning seat 6 to synchronously mount the flow divider on the air inlet pipe 71 and the second mounting ring 52, so that the operation is simple and convenient. In order to facilitate the rotation of the positioning seat 6, an inner hexagonal groove 63 is formed on the top surface of the positioning seat 6, and the inner hexagonal groove 63 can be inserted by a screwdriver adapted to the inner hexagonal groove 63, so as to rotate the positioning seat 6 by the screwdriver.

Referring to fig. 1 and 2, a rubber pad 621 is fixedly connected to a lower side of the second positioning ring 62, the material of the rubber pad 621 is the same as that of the first sealing ring 511, and after the positioning seat 6 is assembled in place, the rubber pad 621 deforms and abuts against between the second positioning ring 62 and the first mounting ring 51, so as to block the gas from leaking out from a gap between the mounting seat 5 and the positioning seat 6.

Referring to fig. 1 and 2, the inflation valve 2 in this embodiment is detachably connected to the positioning seat 6, and specifically, the inflation valve 2 and the positioning seat 6 may be connected by bolts. After the connection is in place, the air outlet of the inflation valve 2 is communicated with the middle through hole of the positioning seat 6, so that the air exhausted by the inflation valve 2 can enter the capsule 3 through the positioning seat 6, the air inlet pipe 71 and the diversion hole 73 in sequence.

The implementation principle of the bag type energy accumulator in the embodiment of the application is as follows: when the energy accumulator is assembled, the shunt part 7 assembled with the capsule 3 is firstly inserted into the mounting hole 12, so that the hollow shunt ball 72 and the capsule 3 extend into the fixed cavity 11; then the second mounting ring 52 is extended into the mounting hole 12 until the first mounting ring 51 is abutted against the shell 1; then, the air inlet pipe 71 and the mounting seat 5 are kept still, the first positioning ring 61 is screwed between the air inlet pipe 71 and the mounting seat 5 until the second positioning ring 62 abuts against the first mounting ring 51, and finally, the inflation valve 2 is mounted on the positioning seat 6. When nitrogen is input from the charging valve 2, the gas enters the holes of the hollow diversion ball 72 through the first positioning ring 61 and the air inlet pipe 71 in sequence, and is finally output to the capsule 3 through the diversion hole 73. The diversion holes 73 play a role in dispersing the air inlet pressure borne by the capsule 3, so that the capsule 3 is not easy to be damaged by local rupture caused by the long-term air inlet pressure in a single direction, and the service lives of the capsule 3 and the energy accumulator are long.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pocket type energy storage ware, includes casing (1), is located inflation valve (2) of casing (1) upside, is located inside capsule (3) of casing (1) and installs hydraulic oil valve (4) in casing (1) bottom, be equipped with fixed chamber (11) that are used for holding capsule (3) in casing (1), its characterized in that: the top of the shell (1) is provided with a mounting hole (12) communicated with the fixed cavity (11), the mounting hole (12) is detachably connected with a mounting seat (5), the inner side of the mounting seat (5) is detachably connected with a positioning seat (6), and the positioning seat (6) is detachably connected with a flow distribution piece (7) used for dispersing air flow; reposition of redundant personnel piece (7) are including intake pipe (71) and fixed hollow reposition of redundant personnel ball (72) that set up in intake pipe (71) bottom, inflation valve (2) intercommunication sets up the upside at intake pipe (71), capsule (3) fixed connection is in intake pipe (71), the inner chamber of hollow reposition of redundant personnel ball (72) and the middle part through-hole intercommunication of intake pipe (71), and evenly distributed has a plurality of reposition of redundant personnel holes (73) on the ball wall of hollow reposition of redundant personnel ball (72), reposition of redundant personnel hole (73) and the inner chamber intercommunication of hollow inner chamber of reposition of redundant personnel ball (72) and capsule (3).

2. A bladder accumulator according to claim 1 wherein: the capsule (3) comprises an inner bag (31) and an outer bag (32) covering the outer side of the inner bag (31), and the top ends of the inner bag (31) and the outer bag (32) are hermetically connected to an air inlet pipe (71).

3. A bladder accumulator according to claim 2 wherein: a plurality of first reinforcing ribs (311) are integrally formed on the side wall of the inner bag (31), and a plurality of second reinforcing ribs (321) are integrally formed on the side wall of the outer bag (32).

4. A bladder accumulator according to claim 2 wherein: threaded groove (711) have been seted up on the circumference lateral wall of intake pipe (71), the top of inner bag (31) and outer bag (32) is all fixed in threaded groove (711), threaded connection has in threaded groove (711) and is used for compressing tightly the ring (712) that supports of inner bag (31) and outer bag (32) stiff end.

5. A bladder accumulator according to claim 1 wherein: the mounting seat (5) comprises a first mounting ring (51) and a second mounting ring (52) which are integrally formed, the outer diameter of the first mounting ring (51) is larger than the inner diameter of the mounting hole (12), the outer diameter of the second mounting ring (52) is smaller than the inner diameter of the mounting hole (12), and a connecting hole (53) penetrating through the first mounting ring (51) and the second mounting ring (52) is formed in the mounting seat (5); a plurality of horizontally extending pushing grooves (54) are formed in the circumferential inner wall of the second mounting ring (52), horizontally extending limiting holes (55) are formed in the wall, far away from the connecting hole (53), of each pushing groove (54), pushing blocks (56) are arranged in the pushing grooves (54) in a sliding mode, limiting blocks (58) fixedly connected with the pushing blocks (56) are arranged in the limiting holes (55) in a sliding mode, a reset spring (57) is arranged between each pushing block (56) and the wall of each pushing groove (54), and a guide inclined plane (561) facing obliquely upwards is arranged at one end, far away from the limiting blocks (58), of each pushing block (56); when the return spring (57) is in a natural state, the guide inclined plane (561) is positioned in the connecting hole (53), and the limiting block (58) is positioned in the limiting hole (55); when the return spring (57) is in a compressed state, the limiting block (58) extends out of the second mounting ring (52).

6. A bladder accumulator according to claim 5 wherein: the lower side of the first mounting ring (51) is fixedly connected with a first sealing ring (511), and the circumferential outer wall of the second mounting ring (52) is fixedly connected with a second sealing ring (521).

7. A bladder accumulator according to claim 5 wherein: the diameter of the hollow shunt ball (72) is smaller than the inner diameter of the mounting hole (12) and larger than the inner diameter of the connecting hole (53).

8. A bladder accumulator according to claim 5 wherein: the positioning seat (6) comprises a first positioning ring (61), a connecting thread (531) is arranged on the hole wall of the connecting hole (53), and a positioning external thread (611) matched with the connecting thread (531) is arranged on the circumferential outer wall of the first positioning ring (61); the air inlet pipe is characterized in that fastening threads (713) are arranged on the circumferential outer wall of the air inlet pipe (71), and positioning internal threads (612) matched with the fastening threads (713) are arranged on the circumferential inner wall of the first positioning ring (61).

9. The accumulator of claim 8, wherein: the positioning seat (6) further comprises a second positioning ring (62) which is integrally formed at the top end of the circumferential side wall of the first positioning ring (61), the outer diameter of the second positioning ring (62) is larger than the inner diameter of the connecting hole (53), and a rubber pad (621) is fixedly connected to the lower side of the second positioning ring (62).

10. The accumulator of claim 8, wherein: the top surface of the positioning seat (6) is provided with an inner hexagonal groove (63).