Bag type energy accumulator

Abstract

The utility model relates to the technical field of energy accumulators, in particular to a bag type energy accumulator which comprises a shell, a cavity with an opening in the upper end is formed in the shell, a detachable plug is arranged at the opening of the cavity, a porous oil pipe is arranged in the cavity, an air bag located in the cavity is wrapped outside the porous oil pipe, and a first air chamber is formed between the porous oil pipe and the air bag. A second air chamber is formed between the air bag and the side wall of the cavity, a damping hole communicated with the first air chamber is formed in the porous oil pipe, and an inflation valve used for inflating the second air chamber is arranged on the outer side wall of the shell. According to the bag type energy accumulator, through the arrangement of the detachable plug, when the air bag in the shell needs to be overhauled, the air bag can be rapidly taken out to be overhauled and replaced, compared with an existing bag type energy accumulator, the air bag does not need to be taken out after the installation base, the positioning base and the flow dividing piece are taken out, operation steps are reduced, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of accumulators, in particular to a bladder-type accumulator. Background Art

[0002] An accumulator is an energy storage device in a 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] Patent number CN114165488A discloses a bladder accumulator, including a shell, an air charging valve located on the upper side of the shell, a capsule located inside the shell, and a hydraulic oil valve installed inside the shell, the inner cavity of the hollow diverter ball is connected to the middle through hole of the air intake pipe, and a number of diverter holes are evenly arranged on the ball wall of the hollow diverter ball, and the diverter holes are connected to the inner cavity of the hollow diverter ball and the inner cavity of the capsule. Although the bladder accumulator has the effect of long service life of the capsule, in actual use, the capsule is installed at the top of the shell. When the airbag in the capsule is damaged, the mounting seat, positioning seat, and diverter need to be removed before the airbag in the capsule can be repaired or replaced, which is troublesome and needs to be improved. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a bladder-type accumulator.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bladder accumulator comprises a shell, a cavity with an upper opening is provided in the shell, a detachable plug is provided at the opening of the cavity, a porous oil pipe is provided in the cavity, an air bag located in the cavity is covered on the porous oil pipe, a first air chamber is formed between the porous oil pipe and the air bag, a second air chamber is formed between the air bag and the side wall of the cavity, a damping hole connected to the first air chamber is provided on the porous oil pipe, and an inflation valve for inflating air into the second air chamber is provided on the outer side wall of the shell.

[0007] Furthermore, the shell outer shell is provided with a protective component, which includes an upper shell and a lower shell that can be spliced ​​with each other, and the upper shell and the lower shell are spliced ​​together through an assembling component. The assembling component includes a mounting shell arranged on the upper shell, a mounting cavity is arranged in the mounting shell, and a connecting block is relatively arranged in the mounting cavity. The connecting block extends out of the mounting shell and is arranged in an L shape. A connecting shell is provided on the lower shell, and a connecting cavity is provided in the connecting shell for the corresponding connecting block to be inserted.

[0008] Furthermore, a spring for driving the connecting blocks to separate from each other is provided in the installation cavity, a movable groove connecting the installation cavity is provided on the outer side of the installation shell along its length direction, and an operating rod movable along the movable groove is provided on the connecting block, and the operating rod is used to drive the connecting blocks to approach each other.

[0009] Furthermore, the protection component includes longitudinal reinforcing ribs arranged on the outer surfaces of the upper shell and the lower shell, and transverse reinforcing ribs are installed between the longitudinal reinforcing ribs.

[0010] Furthermore, a plurality of longitudinal reinforcing ribs are equidistantly arranged on the surface of the shell, and the transverse reinforcing ribs are in a circular ring shape.

[0011] Furthermore, the plug is provided with an external thread, and the side wall at the cavity opening is provided with an internal thread.

[0012] Furthermore, an O-ring is provided at the contact point between the plug and the shell, and the O-ring is used to prevent oil leakage.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model provides a detachable plug, so that when the airbag inside the shell needs to be repaired, the airbag can be quickly taken out for repair and replacement. Compared with the existing bladder accumulator, it is not necessary to remove the mounting seat, the positioning seat, and the diverter before taking out the airbag, which reduces the operation steps and improves work efficiency.

[0015] 2. The utility model can protect the shell by setting the protection component, so that the external structural strength of the shell is improved and the service life of the shell is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the structure of a bladder accumulator.

[0017] Figure 2 It is a cross-sectional schematic diagram of the shell in the utility model.

[0018] Figure 3 It is a structural schematic diagram of the protection component in the utility model.

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] Figure 5 It is a structural schematic diagram of the connecting block in the utility model.

[0021] Figure 6 It is a structural schematic diagram of the installation shell and the connection shell in the utility model.

[0022] The meaning of the symbols in the figure is:

[0023] 100, shell; 110, inlet and outlet pipes; 111, flange; 120, plug; 121, handle; 201, notch; 210, cavity; 211, first air chamber; 212, second air chamber; 230, inflation valve; 240, porous oil pipe; 241, damping hole; 250, air bag; 251, clamping part; 310, upper shell; 320, lower shell; 400, mounting shell; 410, connecting shell; 411, movable groove; 420, longitudinal reinforcement rib; 421, transverse reinforcement rib; 501, connecting block; 502, bending part; 503, spring; 504, operating rod; 505, slider; 600, mounting cavity; 601, slide groove; 610, connecting cavity; 611, step part. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0028] The utility model provides a technical solution:

[0029] See also Figure 1 and Figure 2 A bladder accumulator in this embodiment includes a shell 100, a cavity 210 with an upper opening is provided in the shell 100, a detachable plug 120 is provided at the opening of the cavity 210, a porous oil pipe 240 is provided in the cavity 210, and an air bag 250 located in the cavity 210 is covered on the porous oil pipe 240, a first air chamber 211 is formed between the porous oil pipe 240 and the air bag 250, a second air chamber 212 is formed between the air bag 250 and the side wall of the cavity 210, a damping hole 241 connected to the first air chamber 211 is provided on the porous oil pipe 240, and an inflation valve 230 for inflating the second air chamber 212 is provided on the outer wall of the shell 100.

[0030] In actual use of this embodiment, the shell 100 and the cavity 210 are both cylindrical, the upper end opening of the cavity 210 is blocked by the plug 120, the lower end surface of the cavity 210 is provided with a through hole at the center, and the porous oil pipe 240 is coaxially arranged in the cavity 210 with the shell 100, wherein the lower end surface of the porous oil pipe 240 is provided with an inlet and outlet pipe 110, the inlet and outlet pipe 110 passes through the through hole and is connected to the existing oil pipeline, so that the oil in the oil pipeline can enter the porous oil pipe 240 through the inlet and outlet pipe 110;

[0031] The diameter of the inlet and outlet pipe 110 is smaller than the diameter of the porous oil pipe 240, so that in actual use, the plug 120 abuts against the upper end surface of the porous oil pipe 240, and the lower end surface of the porous oil pipe 240 overlaps the lower end surface of the cavity 210. Through this arrangement, the porous oil pipe 240 is fixed in the cavity 210;

[0032] The middle part of the airbag 250 is fixedly connected to the middle part of the outer wall of the porous oil pipe 240, so that a second air chamber 212 is formed between the airbag 250 and the side wall of the cavity 210. The side wall of the cavity is provided with notches 201 at both ends along its circumference. The upper and lower ends of the airbag 250 are bent to form a clamping part 251 fixed in the corresponding notch 201, so that the first air chamber 211 located at the upper and lower ends of the cavity is preferably formed between the airbag 250 and the porous oil pipe 240;

[0033] In this embodiment, the oil in the oil pipeline enters and exits the porous oil pipe 240 through the inlet and outlet pipe 110 by setting the first air chamber 211, the second air chamber 212 and the airbag 250. When the pressure in the oil pipeline is high, the oil in the porous oil pipe 240 enters the first air chamber 211 through the damping hole 241, squeezes the airbag 250, and reduces the space in the second air chamber 212, that is, the excess energy in the oil pipeline is absorbed by the deformation of the airbag 250. When the pressure in the oil pipeline is low, air is injected into the second air chamber 212 through the inflation valve 230 to increase the pressure, and the airbag 250 is squeezed in the opposite direction, so that the space in the first air chamber 211 is reduced, and the oil in the first air chamber 211 enters the porous oil pipe 240 through the damping hole 241, and enters the oil pipeline through the inlet and outlet pipe 110, and the stored energy is returned to the oil pipeline.

[0034] Among them, the airbag 250 and the inflation valve 230 are prior art, and their working principles are not described in detail here;

[0035] In actual use of this embodiment, the plug 120 is provided with an external thread, and the upper opening of the cavity 210 is provided with an internal thread. The plug 120 is preferably detachable by the cooperation of the external thread and the internal thread. An O-ring is provided at the contact point between the plug 120 and the housing 100 to prevent oil leakage.

[0036] A handle 121 is provided on the upper end surface of the plug 120. With this arrangement, when the connection between the plug 120 and the housing 100 needs to be made or released, the plug 120 can be rotated by holding the handle 121, which is convenient for personnel to operate; wherein, the detachable plug 120 is provided, so that when the airbag 250 inside the housing 100 needs to be repaired, the airbag 250 can be quickly taken out for repair and replacement. Compared with the existing bladder accumulator, it is not necessary to take out the mounting seat, the positioning seat, and the diverter before taking out the airbag 250, which reduces the operation steps and improves the work efficiency;

[0037] The O-ring can be used to seal the gap between the plug 120 and the upper opening of the housing 100 to prevent oil leakage.

[0038] A flange 111 is provided at the bottom end of the inlet and outlet pipe 110, and the inlet and outlet pipe 110 is connected to the oil pipeline by bolts passing through the flange holes. This arrangement makes the connection strength between the inlet and outlet pipe 110 and the oil pipeline higher;

[0039] Among them, an elastic gasket is arranged between the inlet and outlet pipe 110 and the oil pipeline. Through this arrangement, the sealing between the two is better, and the oil in the oil pipeline will not easily leak out.

[0040] See also Figure 2-Figure 6In this embodiment, a protective component is disposed on the outer cover of the shell 100, and the protective component includes an upper shell 310 and a lower shell 320 that can be spliced ​​with each other. The upper shell 310 and the lower shell 320 are spliced ​​together by an assembling component. The assembling component includes a mounting shell 400 arranged on the upper shell 310, a mounting cavity 600 is arranged in the mounting shell 400, and a connecting block 501 is relatively arranged in the mounting cavity 600, and the connecting block 501 extends out of the mounting shell 400 and is arranged in an L shape. A connecting shell 410 is provided on the lower shell 320, and a connecting cavity 610 is provided in the connecting shell 410 for the corresponding connecting block 501 to be inserted, and a spring 503 for driving the connecting blocks 501 to separate from each other is provided in the mounting cavity 600. The outer side surface of the mounting shell 400 is provided with a movable groove 411 connected to the mounting cavity 600 along its length direction, and an operating rod 504 that can move along the movable groove 411 is provided on the connecting block 501, and the operating rod 504 is used to drive the connecting blocks 501 to approach each other.

[0041] In this embodiment, by disposing the protection component, the structural strength of the housing 100 can be improved outside the housing 100, which is beneficial to improving the service life of the housing 100;

[0042] Among them, by setting the assembly components, the protection component can be detachably installed outside the housing 100, so that the protection component can be reused without causing waste of resources;

[0043] In actual use of this embodiment, a step portion 611 is provided at the upper opening of the connection cavity 610, and one end of the connection block 501 extending into the connection cavity 610 is bent to form a bent portion 502 that matches the corresponding step portion 611;

[0044] When the upper shell 310 and the lower shell 320 are connected, the two operating rods 504 are moved along the moving grooves 411 to make them approach each other, thereby driving the connecting blocks 501 to approach each other. After the extended ends of the connecting blocks 501 are inserted into the connecting cavity 610, the operating rods 504 are released, and the two connecting blocks 501 are separated from each other under the action of the springs 503, so that the bent portions 502 are clamped at the bottom ends of the corresponding step portions 611, thereby achieving the fixing between the mounting shell 400 and the connecting shell 410, that is, completing the connection between the upper shell 310 and the lower shell 320;

[0045] A slide groove 601 is provided through the side wall of the installation cavity 600, and the slide groove 601 is arranged along the sliding direction of the connection block 501. A slider 505 that can move in the slide groove 601 is provided on one side wall of the connection block 501. Through this arrangement, the connection block 501 can move smoothly in the installation cavity 600.

[0046] The two ends of the spring 503 are respectively fixedly connected to the opposite sides of the connecting block 501 . This arrangement prevents the spring 503 from being separated from the connecting block 501 , thereby achieving the installation of the spring 503 in the installation cavity 600 .

[0047] Combination Figure 1-Figure 3 As shown, in this embodiment, the protection component includes longitudinal reinforcing ribs 420 arranged on the outer surfaces of the upper shell 310 and the lower shell 320, and transverse reinforcing ribs 421 are installed between the longitudinal reinforcing ribs 420. A plurality of longitudinal reinforcing ribs 420 are equidistantly arranged on the surface of the shell 100, and the transverse reinforcing ribs 421 are in a circular ring shape.

[0048] In this embodiment, the longitudinal reinforcing ribs 420 and the transverse reinforcing ribs 421 are provided to strengthen the strength of the upper shell 310 and the lower shell 320, so that the outer surface of the shell 100 is better protected, and the shell 100 is prevented from being deformed and damaged due to external impact during use.

[0049] Among them, the outer surface of the shell 100 is provided with a first curved surface at the upper and lower ends, and the upper end of the inner side surface of the upper shell 310 and the lower end of the inner side surface of the lower shell 320 are respectively provided with a second curved surface matching the first curved surface. Through this arrangement, the upper shell 310 and the lower shell 320 can fit the outer surface of the shell 100 and will not fall off, thereby ensuring the protection of the shell 100.

[0050] Working principle: First, install the lower shell 320 on the lower end of the shell 100, and install the upper shell 310 on the upper end of the shell 100. Connect the upper shell 310 and the lower shell 320 to each other through assembling components to protect the outer surface of the shell 100. Connect the inlet and outlet pipes 110 to the oil pipeline through bolts passing through the flange holes. Absorb excess energy in the oil pipeline through the air bag 250, the first air chamber 211 and the second air chamber 212, and release the energy into the oil pipeline when needed. When the air bag 250 is damaged, unscrew the plug 120, take out the air bag 250 and carry out maintenance.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bladder accumulator, characterized in that: The invention comprises a shell (100), wherein a cavity (210) with an upper opening is provided in the shell (100), a detachable plug (120) is provided at the opening of the cavity (210), a multi-hole oil pipe (240) is provided in the cavity (210), an air bag (250) located in the cavity (210) is coated on the multi-hole oil pipe (240), a first air chamber (211) is formed between the multi-hole oil pipe (240) and the air bag (250), a second air chamber (212) is formed between the air bag (250) and the side wall of the cavity (210), a damping hole (241) communicating with the first air chamber (211) is provided on the multi-hole oil pipe (240), and an inflation valve (230) for inflating air into the second air chamber (212) is provided on the outer side wall of the shell (100).

2. A bladder accumulator according to claim 1, characterized in that: The outer cover of the shell (100) is provided with a protective component, the protective component comprises an upper shell (310) and a lower shell (320) which can be spliced ​​with each other, the upper shell (310) and the lower shell (320) are spliced ​​with each other through an assembling component, the assembling component comprises a mounting shell (400) arranged on the upper shell (310), a mounting cavity (600) is arranged in the mounting shell (400), a connecting block (501) is arranged in the mounting cavity (600), the connecting block (501) extends out of the mounting shell (400) and is arranged in an L shape, the lower shell (320) is provided with a connecting shell (410), and a connecting cavity (610) is arranged in the connecting shell (410) for the corresponding connecting block (501) to be inserted.

3. A bladder accumulator according to claim 2, characterized in that: A spring (503) for driving the connection blocks (501) to separate from each other is arranged in the installation cavity (600); a movable groove (411) communicating with the installation cavity (600) is arranged on the outer side surface of the installation shell (400) along its length direction; an operating rod (504) movable along the movable groove (411) is arranged on the connection block (501); and the operating rod (504) is used to drive the connection blocks (501) to approach each other.

4. A bladder accumulator according to claim 2, characterized in that: The protection component comprises longitudinal reinforcing ribs (420) arranged on the outer surfaces of the upper shell (310) and the lower shell (320), and transverse reinforcing ribs (421) are installed between the longitudinal reinforcing ribs (420).

5. The bladder accumulator according to claim 4, characterized in that: A plurality of longitudinal reinforcing ribs (420) are equidistantly arranged on the surface of the shell (100), and the transverse reinforcing ribs (421) are in the shape of a circular ring.

6. The bladder accumulator according to claim 1, characterized in that: The plug (120) is provided with an external thread, and the side wall at the opening of the cavity (210) is provided with an internal thread.

7. The bladder accumulator according to claim 5, characterized in that: An O-ring is provided at the contact point between the plug (120) and the housing (100), and the O-ring is used to prevent oil from leaking out.

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