A bladder accumulator

Abstract

The present invention relates to the technical field of accumulator equipment, and specifically to a bladder-type accumulator, comprising a shell, a gas charging pipe is provided on the top of the shell, the bottom end of the gas charging pipe extends into the shell, a bladder body connected to the bottom end of the gas charging pipe is provided inside the shell, an oil pipe connected to the inside of the shell is provided at the bottom of the shell, a jacking assembly is slidably installed inside the shell, the bottom end of the jacking assembly extends into the oil pipe, a liquid inlet assembly is provided on the left outer wall of the shell, the liquid inlet assembly is connected to the inside of the oil pipe, an energy storage assembly is provided on the right outer wall of the shell, the bottom end of the energy storage assembly is connected to the inner bottom end of the shell, according to the present invention, the external oil enters the oil pipe after being buffered by the liquid inlet assembly, so as to prevent the jacking assembly and the energy storage assembly from being damaged due to excessive fluid pressure of the oil, thereby ensuring the stable operation of the entire device.

Description

Technical Field

[0001] The invention relates to the technical field of accumulator equipment, in particular to a bladder type accumulator. Background Art

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

[0003] The Chinese invention patent with patent number CN111810463B discloses a bladder accumulator based on the function of a hydraulic system, comprising a housing, a charging valve is installed through the top of the housing, a valve protection cover is fixedly sleeved on the top of the charging valve, a bladder is fixedly connected to the bottom of the charging valve, a first partition plate with a sealing ring sleeved on the inner wall of the housing is movably installed at the bottom of the bladder, and a second partition plate is fixedly connected to the lower surface of the first partition plate. The bladder accumulator based on the function of a hydraulic system has a sealing structure movably connected to the inner wall of the housing provided at the bottom of the bladder, and the bladder is completely separated from the oil filled into the housing through the sealing structure, thereby basically avoiding the contact between the bladder and the oil, effectively solving the oil corrosion caused by the long-term contact between the bladder and the oil and the impact damage to the bladder caused by tiny solid impurities in the oil, and improving the service life of the bladder.

[0004] However, the above patent still has the following shortcomings in actual use: the oil in the patent passes through the sealing concave surface through the through groove and enters the lower half of the shell. When the fluid pressure of the oil is too large, the sealing concave surface will be damaged by force, thereby affecting the normal operation of the entire device. Summary of the invention

[0005] The object of the present invention is to provide a bladder accumulator to solve the problem mentioned in the background art that when the fluid pressure of the oil is too large, the sealing concave surface will be damaged by force, thereby affecting the normal operation of the entire device.

[0006] The technical solution of the present invention is:

[0007] A bladder type accumulator comprises a shell, the top of the shell is provided with an air filling pipe, the bottom end of the air filling pipe extends into the shell, the interior of the shell is provided with a bladder body connected with the bottom end of the air filling pipe, the bottom of the shell is provided with an oil pipe connected with the interior thereof, a jacking assembly is slidably installed inside the shell, the bottom end of the jacking assembly extends into the oil pipe, a liquid inlet assembly is provided on the left outer wall of the shell, the liquid inlet assembly is connected with the interior of the oil pipe, and an energy storage assembly is provided on the right outer wall of the shell, the bottom end of the energy storage assembly is connected with the inner bottom end of the shell.

[0008] Furthermore, the liquid inlet assembly includes a fixed frame, a liquid inlet box, a first pipe, a second pipe and several buffer components, the fixed frame is installed on the left outer wall of the shell, the liquid inlet box is horizontally arranged at the bottom of the fixed frame, the first pipe is installed at the head end of the liquid inlet box, and the first pipe is connected to the interior of the liquid inlet box, the second pipe is installed at the tail end of the liquid inlet box, and the second pipe is connected to the interior of the liquid inlet box and the interior of the oil pipe, several of the buffer components are staggered in the liquid inlet box, and the top ends of several buffer components extend to the outside of the liquid inlet box.

[0009] Furthermore, the buffer component includes a buffer shaft, a buffer impeller and a counterweight, the buffer shaft is rotatably installed in the liquid inlet box, and the top end of the buffer shaft extends to the outside of the liquid inlet box, the buffer impeller is installed on the buffer shaft, and the counterweight is installed at the top end of the buffer shaft.

[0010] Furthermore, the counterweight component includes a chassis, a screw, a fixed sleeve and several counterweight plates. The chassis is installed on the top of the buffer shaft, the screw is vertically arranged at the top center of the chassis, several counterweight plates are stacked on the chassis, the fixed sleeve is arranged on the screw, and the fixed sleeve is matched with the screw thread.

[0011] Furthermore, a vertical shaft for storing the counterweight plate is vertically provided on the top of the fixing frame.

[0012] Furthermore, the jacking assembly includes a hollow disk, a jacking disk, a rotating shaft, a rotating disk, a gear, a sliding block, a rack, a vertical plate, a first mounting seat, a second mounting seat, a return spring and two elastic connecting parts. The hollow disk and the jacking disk are respectively slidably mounted in the shell, and the hollow disk is located below the jacking disk. The two elastic connecting parts are symmetrically arranged at the bottom of the jacking disk, and the bottom ends of the two elastic connecting parts are connected to the top of the hollow disk. The rotating shaft is rotatably mounted on the bottom of the hollow disk, and the top end of the rotating shaft extends into the hollow disk, and the bottom end of the rotating shaft extends into the oil pipe. The rotating disk is mounted on the bottom end of the rotating shaft. A number of through grooves are provided on the rotating disk. The gear is mounted on the top end of the rotating shaft. The sliding block is slidably mounted inside the hollow disk. The rack is horizontally arranged on the top of the sliding block, and the gear is meshed with the rack. The vertical plate is vertically arranged at the inner bottom end of the hollow disk. The first mounting seat is mounted on the outer wall of the vertical plate, and the second mounting seat is mounted on the outer wall of the sliding block. The two ends of the return spring are respectively connected to the first mounting seat and the second mounting seat.

[0013] Furthermore, the elastic connecting component includes a sleeve, a sleeve rod, a connecting plate and a connecting spring. The sleeve is vertically arranged at the bottom of the lifting plate, the sleeve rod is slidably installed in the sleeve, the connecting plate is installed at the bottom of the sleeve rod, and the bottom of the connecting plate is connected to the top of the hollow plate. The connecting spring is sleeved on the outside of the sleeve rod, and the two ends of the connecting spring are respectively connected to the sleeve and the connecting plate.

[0014] Furthermore, the energy storage assembly includes an energy storage box, an energy storage cylinder, a connecting pipe, a piston and an energy storage spring. The energy storage box is installed on the right outer wall of the shell, and the energy storage cylinder is vertically arranged in the energy storage box. The two ends of the connecting pipe are respectively connected with the inner bottom end of the shell and the inner bottom end of the energy storage cylinder. The piston is slidably installed in the energy storage cylinder. The energy storage spring is vertically arranged in the energy storage cylinder, and the two ends of the energy storage spring are respectively connected with the piston and the inner wall of the energy storage cylinder.

[0015] Furthermore, the inflation pipe is provided with an inflation valve.

[0016] The present invention provides a bladder accumulator through improvement, which has the following improvements and advantages compared with the prior art:

[0017] First, the present invention uses an inflation tube to fill a certain amount of gas into the bladder body, and then the external oil enters the oil tube after being buffered by the liquid inlet component, so as to prevent the fluid pressure of the oil from being too large and causing damage to the jacking component and the energy storage component, thereby ensuring the stable operation of the entire device. Then the oil in the oil tube enters the inner bottom end of the shell, and the oil slowly lifts the jacking component upward in the shell. A part of the oil enters the energy storage component for energy storage, and at the same time, the jacking component moves upward to contact the bottom end of the bladder body. When the gas pressure in the bladder body is consistent with the oil pressure at the inner bottom end of the shell, the liquid inlet component stops conveying oil to the oil tube. At this time, the accumulator is in a balanced state. When the oil needs to be released to supplement the pressure in the hydraulic system, the bladder body continues to be filled with gas to expand it to move the jacking component downward and reset it. At the same time, the energy storage component releases the stored oil therein to flow into the inner bottom end of the shell. Finally, the oil at the inner bottom end of the shell flows into the hydraulic system through the oil tube and the liquid inlet component to supplement the pressure.

[0018] Secondly, the oil entering the liquid inlet tank of the present invention utilizes the buffer impeller to drive the buffer shaft to rotate, and the buffer shaft drives the counterweight to rotate. Since the counterweight has a certain weight, the rotation of the counterweight buffers the fluid pressure in the oil.

[0019] Third: In the present invention, the oil enters the inner bottom end of the shell through the oil pipe, and the oil pushes the hollow plate and the lifting plate to move upward. At the same time, the oil drives the rotating plate to rotate when flowing through the through groove, and the rotating plate drives the rotating shaft and the gear to rotate. The gear drives the rack to move horizontally, and the rack drives the reset spring to compress and deform between the first mounting seat and the second mounting seat, and the reset spring performs part of the energy storage work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further explained below in conjunction with the accompanying drawings and Examples:

[0021] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a partial cross-sectional view of the present invention. Figure 1 ;

[0024] Figure 4 It is a partial cross-sectional view of the liquid inlet assembly of the present invention. Figure 1 ;

[0025] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0026] Figure 6The three-dimensional structure diagram of the lifting assembly of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 7 It is a partial cross-sectional view of the jacking assembly of the present invention. Figure 1 ;

[0028] Figure 8 It is a partial cross-sectional view of the energy storage assembly of the present invention. Figure 1 .

[0029] Description of reference numerals:

[0030] Shell 1, inflation tube 2, inflation valve 21, bladder body 3, oil pipe 4, lifting assembly 5, hollow disk 51, lifting disk 511, rotating shaft 512, rotating disk 513, gear 514, through groove 515, sliding block 52, rack 53, vertical plate 54, first mounting seat 55, second mounting seat 56, return spring 57, elastic connecting component 58, sleeve 581, sleeve rod 582, connecting plate 583, connecting spring 584, liquid inlet assembly 6, fixed frame 61, vertical shaft 611, liquid inlet box 62, first pipeline 63, second pipeline 64, buffer component 65, buffer shaft 66, buffer impeller 67, counterweight 68, chassis 681, screw 682, fixed sleeve 683, counterweight disk 684, energy storage assembly 7, energy storage box 71, energy storage cylinder 72, connecting pipe 73, piston 74, energy storage spring 75. DETAILED DESCRIPTION

[0031] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a bladder accumulator through improvement, such as Figure 1-Figure 8As shown, it includes a shell 1, a gas filling tube 2 is provided on the top of the shell 1, the bottom end of the gas filling tube 2 extends into the shell 1, a bladder body 3 connected with the bottom end of the gas filling tube 2 is provided inside the shell 1, an oil pipe 4 connected with the inside of the shell 1 is provided at the bottom of the shell 1, a lifting component 5 is slidably installed inside the shell 1, the bottom end of the lifting component 5 extends into the oil pipe 4, a liquid inlet component 6 is provided on the left outer wall of the shell 1, the liquid inlet component 6 is connected with the inside of the oil pipe 4, an energy storage component 7 is provided on the right outer wall of the shell 1, the bottom end of the energy storage component 7 is connected with the inner bottom end of the shell 1; a certain amount of gas is filled into the bladder body 3 by using the gas filling tube 2, and then the external oil enters the oil pipe 4 after being buffered by the liquid inlet component 6, so as to prevent the excessive fluid pressure of the oil from causing the lifting component 5 and the energy storage component to be Component 7 is damaged, to ensure the stable operation of the entire device, the oil in the oil pipe 4 then enters the inner bottom of the shell 1, and the oil slowly lifts the lifting component 5 upward in the shell 1, and a part of the oil enters the energy storage component 7 for energy storage, and at the same time the lifting component 5 moves upward to contact the bottom end of the bladder body 3. When the gas pressure in the bladder body 3 is consistent with the oil pressure at the inner bottom of the shell 1, the liquid inlet component 6 stops conveying oil to the oil pipe 4. At this time, the accumulator is in a balanced state. When the oil needs to be released to supplement the pressure in the hydraulic system, the bladder body 3 continues to be filled with gas to expand it to move the lifting component 5 downward and reset it. At the same time, the energy storage component 7 releases the stored oil therein to flow into the inner bottom of the shell 1. Finally, the oil at the inner bottom of the shell 1 flows into the hydraulic system through the oil pipe 4 and the liquid inlet component 6 to supplement the pressure.

[0033] Specifically, the liquid inlet assembly 6 includes a fixing frame 61, a liquid inlet box 62, a first pipe 63, a second pipe 64 and a plurality of buffer components 65. The fixing frame 61 is installed on the left outer wall of the housing 1, the liquid inlet box 62 is horizontally arranged at the bottom of the fixing frame 61, the first pipe 63 is installed at the head end of the liquid inlet box 62, and the first pipe 63 is connected to the inside of the liquid inlet box 62, the second pipe 64 is installed at the tail end of the liquid inlet box 62, and the second pipe 64 is connected to the inside of the liquid inlet box 62 and the oil The interior of the liquid pipe 4 is interconnected, and several of the buffer components 65 are staggeredly arranged in the liquid inlet box 62, and the top ends of several of the buffer components 65 extend to the outside of the liquid inlet box 62; the external oil is transported to the liquid inlet box 62 through the first pipeline 63, and then several buffer components 65 buffer the fluid pressure in the oil, and the buffered oil enters the oil pipe 4 through the second pipeline 64 to prevent the excessive fluid pressure of the oil from causing damage to the jacking assembly 5 and the energy storage assembly 7, thereby ensuring the stable operation of the entire device.

[0034] Specifically, the buffer component 65 includes a buffer shaft 66, a buffer impeller 67 and a counterweight 68. The buffer shaft 66 is rotatably installed in the liquid inlet tank 62, and the top end of the buffer shaft 66 extends to the outside of the liquid inlet tank 62. The buffer impeller 67 is installed on the buffer shaft 66, and the counterweight 68 is installed on the top end of the buffer shaft 66. The oil entering the liquid inlet tank 62 uses the buffer impeller 67 to drive the buffer shaft 66 to rotate, and the buffer shaft 66 drives the counterweight 68 to rotate. Since the counterweight 68 has a certain weight, the rotation of the counterweight 68 can buffer the fluid pressure in the oil.

[0035] Specifically, the counterweight member 68 includes a chassis 681, a screw 682, a fixing sleeve 683 and a plurality of counterweight plates 684. The chassis 681 is installed at the top end of the buffer shaft 66. The screw 682 is vertically arranged at the top center of the chassis 681. A plurality of counterweight plates 684 are stacked on the chassis 681. The fixing sleeve 683 is sleeved on the screw 682, and the fixing sleeve 683 is threadedly matched with the screw 682. The number of stacked counterweight plates 684 is determined according to actual usage requirements, and then the fixing sleeve 683 is used to fix the counterweight plates 684 on the chassis 681.

[0036] Specifically, a vertical shaft 611 for storing the counterweight plate 684 is vertically provided on the top of the fixing frame 61 ; the vertical shaft 611 is used to store redundant counterweight plates 684 .

[0037] Specifically, the lifting assembly 5 includes a hollow disk 51, a lifting disk 511, a rotating shaft 512, a rotating disk 513, a gear 514, a sliding block 52, a rack 53, a vertical plate 54, a first mounting seat 55, a second mounting seat 56, a return spring 57 and two elastic connecting parts 58. The hollow disk 51 and the lifting disk 511 are respectively slidably installed in the shell 1, and the hollow disk 51 is located below the lifting disk 511. The two elastic connecting parts 58 are symmetrically arranged at the bottom of the lifting disk 511, and the bottom ends of the two elastic connecting parts 58 are connected to the top of the hollow disk 51. The rotating shaft 512 is rotatably installed at the bottom of the hollow disk 51, and the top end of the rotating shaft 512 extends into the hollow disk 51, and the bottom end of the rotating shaft 512 extends into the oil pipe 4. The rotating disk 513 is installed at the bottom end of the rotating shaft 512. The rotating disk 513 is provided with a plurality of through grooves 515. The gear 514 is installed on the rotating shaft 51 2, the sliding block 52 is slidably installed in the interior of the hollow disk 51, the rack 53 is horizontally arranged on the top of the sliding block 52, the gear 514 is meshed with the rack 53, the vertical plate 54 is vertically arranged at the bottom end of the interior of the hollow disk 51, the first mounting seat 55 is installed on the outer wall of the vertical plate 54, the second mounting seat 56 is installed on the outer wall of the sliding block 52, and the two ends of the return spring 57 are respectively connected to the first mounting seat 55 and the second mounting seat 56; the oil enters the inner bottom end of the shell 1 through the oil pipe 4, and the oil pushes the hollow disk 51 and the lifting disk 511 to move upward. At the same time, when the oil flows through the through groove 515, it drives the rotating disk 513 to rotate, and the rotating disk 513 drives the rotating shaft 512 and the gear 514 to rotate, and the gear 514 drives the rack 53 to move horizontally, and the rack 53 drives the return spring 57 to compress and deform between the first mounting seat 55 and the second mounting seat 56, and the return spring 57 performs a part of the energy storage work.

[0038] Specifically, the elastic connecting component 58 includes a sleeve 581, a sleeve rod 582, a connecting plate 583 and a connecting spring 584. The sleeve 581 is vertically arranged at the bottom of the lifting plate 511, the sleeve rod 582 is slidably installed in the sleeve 581, the connecting plate 583 is installed at the bottom of the sleeve rod 582, and the bottom of the connecting plate 583 is connected to the top of the hollow plate 51, the connecting spring 584 is sleeved on the outside of the sleeve rod 582, and the two ends of the connecting spring 584 are respectively connected to the sleeve 581 and the connecting plate 583; when the hollow plate 51 moves upward, the hollow plate 51 uses the connecting plate 583 to drive the sleeve rod 582 to move upward until it is partially retracted into the sleeve 581, and at the same time, the connecting spring 584 is also forced to compress and deform between the connecting plate 583 and the sleeve 581, and the connecting spring 584 performs a part of the energy storage work.

[0039] Specifically, the energy storage assembly 7 includes an energy storage box 71, an energy storage cylinder 72, a connecting pipe 73, a piston 74 and an energy storage spring 75. The energy storage box 71 is installed on the right outer wall of the shell 1, and the energy storage cylinder 72 is vertically arranged in the energy storage box 71. The two ends of the connecting pipe 73 are respectively connected with the inner bottom end of the shell 1 and the inner bottom end of the energy storage cylinder 72. The piston 74 is slidably installed in the energy storage cylinder 72. The energy storage spring 75 is vertically arranged in the energy storage cylinder 72, and the two ends of the energy storage spring 75 are respectively connected with the piston 74 and the inner wall of the energy storage cylinder 72; a part of the oil at the inner bottom end of the shell 1 enters the energy storage cylinder 72 through the connecting pipe 73, and the oil squeezes the piston 74 to move upward. While the piston 74 moves upward, it compresses the energy storage spring 75, and the energy storage spring 75 is compressed and deformed to store energy.

[0040] Specifically, the inflation tube 2 is provided with an inflation valve 21 ; the inflation valve 21 is used to control the air intake of the inflation tube 2 .

[0041] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bladder accumulator, comprising a housing (1), characterized in that: The shell (1) is provided with an air filling tube (2) at the top, the bottom end of the air filling tube (2) extends into the shell (1), the shell (1) is provided with a bladder body (3) connected to the bottom end of the air filling tube (2), the shell (1) is provided with an oil pipe (4) connected to the inside of the shell (1), the shell (1) is provided with a jacking assembly (5) slidably mounted inside the shell (1), the bottom end of the jacking assembly (5) extends into the oil pipe (4), the left outer wall of the shell (1) is provided with a liquid inlet assembly (6), the liquid inlet assembly (6) is connected to the inside of the oil pipe (4), and the right outer wall of the shell (1) is provided with a liquid inlet assembly (6). An energy storage component (7) is provided on the outer wall, and the bottom end of the energy storage component (7) is connected to the inner bottom end of the shell (1); the lifting component (5) comprises a hollow disk (51), a lifting disk (511), a rotating shaft (512), a rotating disk (513), a gear (514), a sliding block (52), a rack (53), a vertical plate (54), a first mounting seat (55), a second mounting seat (56), a return spring (57) and two elastic connecting components (58); the hollow disk (51) and the lifting disk (511) are respectively slidably mounted in the shell (1), and the hollow disk (51) is located at the top Below the lifting plate (511), two elastic connection components (58) are symmetrically arranged at the bottom of the lifting plate (511), and the bottom ends of the two elastic connection components (58) are connected to the top of the hollow plate (51), the rotating shaft (512) is rotatably mounted at the bottom of the hollow plate (51), and the top end of the rotating shaft (512) extends into the hollow plate (51), and the bottom end of the rotating shaft (512) extends into the oil pipe (4), the rotating plate (513) is mounted at the bottom end of the rotating shaft (512), and a plurality of through slots (515) are provided on the rotating plate (513), and the gear ( The hollow disk (51) is provided with a first mounting seat (55) and a second mounting seat (56) which are provided on the upper end of the hollow disk (51). The first mounting seat (55) is provided on the upper end of the hollow disk (51). The second mounting seat (56) is provided on the upper end of the hollow disk (51). The first mounting seat (55) is provided on the upper end of the hollow disk (51). The second mounting seat (56) is provided on the upper end of the hollow disk (51). The two ends of the return spring (57) are respectively connected to the first mounting seat (55) and the second mounting seat (56).

2. A bladder accumulator according to claim 1, characterized in that: The liquid inlet assembly (6) comprises a fixing frame (61), a liquid inlet box (62), a first pipe (63), a second pipe (64) and a plurality of buffer components (65); the fixing frame (61) is mounted on the left outer wall of the housing (1); the liquid inlet box (62) is horizontally arranged at the bottom of the fixing frame (61); the first pipe (63) is mounted at the head end of the liquid inlet box (62), and the first pipe (63) is connected to the inside of the liquid inlet box (62); the second pipe (64) is mounted at the tail end of the liquid inlet box (62), and the second pipe (64) is connected to the inside of the liquid inlet box (62) and the inside of the oil pipe (4); and the plurality of buffer components (65) are staggeredly arranged in the liquid inlet box (62), and the top ends of the plurality of buffer components (65) extend to the outside of the liquid inlet box (62).

3. A bladder accumulator according to claim 2, characterized in that: The buffer component (65) comprises a buffer shaft (66), a buffer impeller (67) and a counterweight (68); the buffer shaft (66) is rotatably mounted in the liquid inlet box (62), and the top end of the buffer shaft (66) extends to the outside of the liquid inlet box (62); the buffer impeller (67) is mounted on the buffer shaft (66), and the counterweight (68) is mounted on the top end of the buffer shaft (66).

4. A bladder accumulator according to claim 3, characterized in that: The counterweight component (68) comprises a chassis (681), a screw rod (682), a fixing sleeve (683) and a plurality of counterweight plates (684); the chassis (681) is mounted on the top end of the buffer shaft (66); the screw rod (682) is vertically arranged at the top center of the chassis (681); a plurality of counterweight plates (684) are stacked on the chassis (681); the fixing sleeve (683) is sleeved on the screw rod (682), and the fixing sleeve (683) and the screw rod (682) are threadedly matched.

5. The bladder accumulator according to claim 4, characterized in that: A vertical shaft (611) for storing the counterweight plate (684) is vertically provided on the top of the fixing frame (61).

6. The bladder accumulator according to claim 1, characterized in that: The elastic connecting component (58) comprises a sleeve (581), a sleeve rod (582), a connecting plate (583) and a connecting spring (584); the sleeve (581) is vertically arranged at the bottom of the lifting plate (511); the sleeve rod (582) is slidably installed in the sleeve (581); the connecting plate (583) is installed at the bottom of the sleeve rod (582), and the bottom of the connecting plate (583) is connected to the top of the hollow plate (51); the connecting spring (584) is sleeved on the outside of the sleeve rod (582), and the two ends of the connecting spring (584) are respectively connected to the sleeve (581) and the connecting plate (583).

7. The bladder accumulator according to claim 1, characterized in that: The energy storage assembly (7) comprises an energy storage box (71), an energy storage cylinder (72), a connecting pipe (73), a piston (74) and an energy storage spring (75); the energy storage box (71) is mounted on the right outer wall of the housing (1); the energy storage cylinder (72) is vertically arranged in the energy storage box (71); two ends of the connecting pipe (73) are respectively connected to the inner bottom end of the housing (1) and the inner bottom end of the energy storage cylinder (72); the piston (74) is slidably mounted in the energy storage cylinder (72); the energy storage spring (75) is vertically arranged in the energy storage cylinder (72); and two ends of the energy storage spring (75) are respectively connected to the piston (74) and the inner wall of the energy storage cylinder (72).

8. The bladder accumulator according to claim 1, characterized in that: The inflation tube (2) is provided with an inflation valve (21).

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