CN204327955U - The accumulator of a kind of seal piston apparatus and use sealing piston apparatus - Google Patents

The accumulator of a kind of seal piston apparatus and use sealing piston apparatus Download PDF

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Publication number
CN204327955U
CN204327955U CN201420686523.1U CN201420686523U CN204327955U CN 204327955 U CN204327955 U CN 204327955U CN 201420686523 U CN201420686523 U CN 201420686523U CN 204327955 U CN204327955 U CN 204327955U
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CN
China
Prior art keywords
piston
radial
seal ring
spring seat
longitudinal
Prior art date
Application number
CN201420686523.1U
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Chinese (zh)
Inventor
顾根泉
王亚辉
张全民
李海文
王海军
杨俊朋
Original Assignee
河南平高电气股份有限公司
国家电网公司
平高集团有限公司
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Priority to CN201420686523.1U priority Critical patent/CN204327955U/en
Application granted granted Critical
Publication of CN204327955U publication Critical patent/CN204327955U/en

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Abstract

The utility model provides the accumulator of a kind of seal piston apparatus and use sealing piston apparatus, seal piston apparatus comprises piston, piston is provided with radial direction seal ring, piston is provided with the thrust surface that coordinate spacing with radial direction seal ring thrust, seal piston apparatus also comprises the stage clip extended along the longitudinal direction being arranged in described radial direction seal ring front, top, stage clip front end is pressed on fixing spring seat, fixing spring seat is at fore-and-aft direction and described piston orientation assemble, stage clip rear end is pushed up to press-fit and is fitted on the movable spring seat of guiding movement along the longitudinal direction, the rear end of movable spring seat to have under the effect of stage clip backward radial direction seal ring described in pushing tow to coordinate the pushing tow face of locating and clamping described radial direction seal ring with described thrust surface.Movable spring seat can push up pressure radial direction seal ring, impels radial direction seal ring to carry out compression compensation, ensures its sealability, can also control the decrement of radial direction seal ring, effectively reduce frictional force, ensures normal movement and the speed of response of piston.

Description

The accumulator of a kind of seal piston apparatus and use sealing piston apparatus

Technical field

The utility model relates to the accumulator of a kind of seal piston apparatus and use sealing piston apparatus.

Background technique

In ultrahigh pressure, breaker in extra high voltage, multiselect hydraulic actuating mechanism, the actuating mode of hydraulic actuating mechanism is that normal high pressure keeps, snap action, this carrys out the energy needed for long-time storage actuating with regard to needs energy-storage travelling wave tube, stored energy form has two kinds, and one adopts Compress Spring energy storage, and another kind adopts pressurized gas energy storage, the mode of Compress Spring energy storage also exists spring is produced creep for a long time possibility by compression, and the mode of pressurized gas energy storage also exists the possibility of Leakage Gas.To the hydraulic actuating mechanism mode adopting pressurized gas energy storage at present of large operating work more.

The accumulator of the pressurized gas energy storage that hydraulic system is commonly used is different from the mode of gas barrier according to hydraulic oil, there are gasbag isolation formula and isolated two kinds of piston, for ensureing the operation requirements of circuit breaker, accumulator in hydraulic actuating mechanism often need be filled with the pressurized gas of certain pressure in advance, to improve its working efficiency, so piston separated accumulator need be adopted.

If Authorization Notice No. is disclose a kind of piston accumulator in the Chinese invention patent specification of CN100376807C, it comprises the cylinder body extended along the vertical direction, the upper and lower two ends of cylinder body are respectively fitted with, lower end cap, the sealing that two two end cap realize itself and cylinder body respectively by the mode of radial seal is assembled, in cylinder body, move back and forth sealing be along the vertical direction equipped with piston, inner chamber of cylinder block is divided into the air cavity being positioned at top and the oil cylinder being positioned at below by piston, upper end cap is provided with the gas charging valve be communicated with air cavity for being filled with pressurized gas in air cavity, lower end cap is provided with and is communicated with the oil inlet hole to injection liquid force feed in oil pocket with oil pocket.During use, pressurized gas are injected air cavity, then to injection liquid force feed in oil pocket, along with oil pressure in oil pocket raises, promote piston and move to upper end cap one side, gas pressurized air pressure becomes large, until reach new balance, realizes accumulation of energy.When hydraulic actuating mechanism works, hydraulic oil discharges pushing mechanical device acting, high pressure gas expansion, promotes piston and moves, keep the working pressure of hydraulic system.

In above-mentioned piston accumulator, the radial seal to piston is realized mainly through the seal ring be arranged between piston and cylinder body, the selection of seal ring just seems particular importance, the hardness of seal ring can not be too high, otherwise, although the frictional force be subject to when piston moves is less, otherwise the words of much higher hard can cause the compensation performance after ring wear poor, if and the seal ring selecting hardness to tell somebody what one's real intentions are, although it is better compensatory, but its frictional force is larger, the speed of response of piston can be affected, radial direction seal ring selects comparatively difficulty, cause existing piston accumulator to the processing of cylinder body and the performance requirement of Sealing higher, design and manufacture cost is higher.

Model utility content

The utility model provides a kind of seal piston apparatus, selects the technical problem of comparatively difficulty with the radial direction seal ring solved on the piston that exists in prior art; Meanwhile, the utility model also provides a kind of accumulator using above-mentioned seal piston apparatus.

The technological scheme of seal piston apparatus provided by the utility model is: seal piston apparatus, comprise the piston axially extended along the longitudinal direction, on the outer circumferential face of piston, coaxial sleeve is equipped with radial direction seal ring, described piston is provided with the thrust surface that coordinate spacing with described radial direction seal ring thrust in described radial direction seal ring rear, seal piston apparatus also comprises the stage clip extended along the longitudinal direction being arranged in described radial direction seal ring front, top, stage clip front end is pressed on fixing spring seat, fixing spring seat is at fore-and-aft direction and described piston orientation assemble, stage clip rear end is pushed up to press-fit and is fitted on the movable spring seat of guiding movement along the longitudinal direction, the rear end of movable spring seat to have under the effect of stage clip backward radial direction seal ring described in pushing tow to coordinate the pushing tow face of locating and clamping described radial direction seal ring with described thrust surface.

The leading flank of described piston is convexly equipped with the guiding attachment post extended forward along the longitudinal direction, described movable spring seat guiding movement is sleeved on described guiding attachment post, described fixing spring cover for seat is contained on described guiding attachment post, is provided with the collar realizing described fixing spring seat and piston orientation assemble in the longitudinal direction between fixing spring seat and guiding attachment post.

The radial dimension of the outer circumferential face of described movable spring seat is less than the radial dimension of described radial direction seal ring, and the outer circumferential face in movable spring seat front portion is by the rear cone structure diminished gradually to front radial dimension.

Described radial direction seal ring comprises the multiple seal washers superposing successively along the longitudinal direction and be sleeved on described piston.

The technological scheme of the accumulator of the above-mentioned seal piston apparatus of use provided by the utility model is: accumulator, comprise the cylinder body extended along the longitudinal direction, packed-piston structure is provided with in cylinder body, packed-piston structure comprises movement along the longitudinal direction and is assemblied in piston inner chamber of cylinder block being divided into oil pocket and air cavity in cylinder body, on the outer circumferential face of piston, coaxial sleeve is equipped with the radial direction seal ring coordinated with cylinder body hydrodynamic reciprocating sealing, described piston is provided with the thrust surface that coordinate spacing with described radial direction seal ring thrust in described radial direction seal ring rear, seal piston apparatus also comprises the stage clip extended along the longitudinal direction being arranged in described radial direction seal ring front, top, stage clip front end is pressed on fixing spring seat, fixing spring seat is at fore-and-aft direction and described piston orientation assemble, stage clip rear end is pushed up to press-fit and is fitted on the movable spring seat of guiding movement along the longitudinal direction, the rear end of movable spring seat to have under the effect of stage clip backward radial direction seal ring described in pushing tow to coordinate the pushing tow face of locating and clamping described radial direction seal ring with described thrust surface.

The leading flank of described piston is convexly equipped with the guiding attachment post extended forward along the longitudinal direction, described movable spring seat guiding movement is sleeved on described guiding attachment post, described fixing spring cover for seat is contained on described guiding attachment post, is provided with the collar realizing described fixing spring seat and piston orientation assemble in the longitudinal direction between fixing spring seat and guiding attachment post.

Described air cavity is positioned at the front of described oil pocket, the rear and front end of cylinder body seals respectively and is equipped with front cover structure and rear end cover structure, front cover structure is provided with the air-supported structure for inflating to described air cavity, rear end cover structure is provided with for the oil transportation hole to oiling in described oil pocket, and described stage clip, movable spring seat and fixing spring seat are arranged in described air cavity.

Described radial direction seal ring comprises the multiple seal washers superposing successively along the longitudinal direction and be sleeved on described piston.

Described front cover structure comprises the Inflation plug being installed on cylinder body front port place and the locking cap being fixedly assemblied in cylinder body front end, locking cap is provided with the through hole extended along the longitudinal direction, through hole is ladder surface shoulder hole backwards, the front portion of Inflation plug is provided with the boss extended forward, boss has outer circumferential face and the step surface forward of the inserting that to coincide with the path section of described through hole, the step surface of described boss, the outer circumferential face of boss, the ladder surface of shoulder hole and the inner peripheral surface of cylinder body surround the groove structure accommodating end-face seal ring, Inflation plug is coordinated with the unidirectional thrust of described locking cap is spacing by described end-face seal ring, described air-supported structure is arranged on described Inflation plug.

Described air-supported structure comprises the vent be arranged at along the longitudinal direction on described Inflation plug, vent comprises the front extension diameter section arranged successively along the longitudinal direction, middle necking segment and rear extension diameter section, be disposed with housing screw and sealed steel ball along the longitudinal direction in front extension diameter section, be provided with inflation one-way valve at the open rearward end place of rear extension diameter section.

The beneficial effects of the utility model are: in seal piston apparatus provided by the utility model, fixing spring seat in the longitudinal direction with piston orientation assemble, by the positioning action of fixing spring seat, stage clip pushes up pressure movable spring seat backward, thrust surface forward on the pushing tow face backward of movable spring seat and piston coordinates and realizes clamping the location of radial direction seal ring, after radial direction seal ring is worn, movable spring seat can push up pressure radial direction seal ring, radial direction seal ring is impelled to carry out compression compensation, ensure its sealability, and, by selecting suitable stage clip, movable spring seat can be adjusted to the top pressure active force that radial direction seal ring applies, the decrement of radial direction seal ring can be controlled, under the prerequisite ensureing sealability, frictional force can be effectively reduced, ensure normal movement and the speed of response of piston, so, just effectively expand the range of choice of radial direction seal ring, reduce the choice criteria of radial direction seal ring, what decrease seal piston apparatus designs and produces cost.Further, in seal piston apparatus provided by the utility model, stage clip is by fixing spring seat together with Piston assembling, and after selected stage clip, the decrement of stage clip self changes not quite in piston reciprocating moving process, effectively can extend the working life of stage clip.

Time in the cylinder body above-mentioned seal piston apparatus being applied to accumulator, by self stage clip and movable spring seat, can adjust decrement and the compensation rate of radial direction seal ring, under the prerequisite of sealability ensureing seal piston apparatus, reduction radial direction seal ring acts on the frictional force on cylinder body.

Further, the leading flank of piston is convexly equipped with guiding attachment post, realized the guiding guiding of movable spring seat and the axially locating to fixing spring seat by this this guiding attachment post, project organization is simple, is convenient to processing and fabricating and assembling.

Further, the air cavity that inner chamber of cylinder block is separated is positioned at oil pocket front by the piston in piston sealing structure, stage clip, movable spring seat and fixing spring seat are all positioned at the front of radial direction seal ring, this makes stage clip, movable spring seat and fixing spring seat be arranged in air cavity, avoids hydraulic oil in oil pocket on the pollution of stage clip, movable spring seat and fixing spring seat and impact.

Further, Inflation plug coordinates by the unidirectional thrust of end-face seal ring and locking cap is spacing, pressurized gas enter in inflatable chamber by air-supported structure, pressurized gas act on the ear end face of Inflation plug, pushed away forward by Inflation plug, end-face seal ring pressurized realizes end face seal to Inflation plug, the compression of end-face seal ring by gas pressure in air cavity to the effect of Inflation plug, sealability is more reliable, and the dismounting of Inflation plug and safeguard also more convenient.

Accompanying drawing explanation

Fig. 1 is the structural representation being provided with the accumulator of seal piston apparatus provided by the utility model;

Fig. 2 is A place enlarged view in Fig. 1;

Fig. 3 is B place enlarged view in Fig. 1.

Embodiment

As shown in Figure 1 to Figure 3, a kind of embodiment being provided with the accumulator of seal piston apparatus, accumulator in this embodiment comprises the cylinder body 3 extended along the longitudinal direction, packed-piston structure is provided with in cylinder body 3, packed-piston structure comprises movement along the longitudinal direction and is assemblied in the piston 2 inner chamber of cylinder block being divided into oil pocket 30 and air cavity 11 in cylinder body 3, on the outer circumferential face of piston 2, coaxial sleeve is equipped with the radial direction seal ring 32 coordinated with cylinder body 3 hydrodynamic reciprocating sealing, piston 2 is provided with the thrust surface that coordinate spacing with the thrust of described radial direction seal ring 32 in described radial direction seal ring 32 rear, in the present embodiment, the leading flank of piston 2 is convexly equipped with the guiding attachment post 31 extended forward along the longitudinal direction, guiding attachment post 31 is set with the stage clip 14 extended along the longitudinal direction, top, stage clip 14 front end is pressed on fixing spring seat 13, fixing spring seat 13 passes through collar 12 and guiding attachment post 31 orientation assemble at fore-and-aft direction, and top, stage clip 14 rear end press-fits and fits on the movable spring seat 15 of guiding movement along the longitudinal direction, movable spring seat 15 guiding movement is sleeved on described guiding attachment post, movable spring seat 15 is provided with the stage clip pilot hole be sleeved on described stage clip 14 extended back by front-end face, the rear end of described stage clip 14 coordinates with pushing tow at the bottom of the hole of described stage clip pilot hole, the radial dimension of the outer circumferential face of movable spring seat 15 is less than the radial dimension of described radial direction seal ring herein, the outer circumferential face of movable spring seat 15 front portion is in the cone structure diminished gradually by backward front radial dimension, the rear end of movable spring seat 15 to have under the effect of stage clip 14 backward radial direction seal ring 32 described in pushing tow to coordinate the pushing tow face of locating and clamping described radial direction seal ring 32 with described thrust surface.

In the present embodiment, the leading flank of piston 2 is provided with step surface positioning step forward, and described radial direction seal ring 32 coaxial positioning is sleeved on described positioning step, and the step surface of this positioning step is described thrust surface.

Radial direction seal ring in the present embodiment comprises along superposing the multiple seal washers be sleeved on described piston along the longitudinal direction successively, multiple seal washers herein specifically comprise interlaced the first seal washer 17 and the second seal washer 19 be superimposed, and in the both sides up and down of first, second seal washer, also correspondence is provided with the 3rd seal washer 20 and the 4th seal washer 18.

In the present embodiment, the air cavity 11 separated by piston 2 is positioned at the front of oil pocket 30, the rear and front end correspondence sealing of cylinder body 3 is equipped with front cover structure and rear end cover structure, front cover structure is provided with the air-supported structure for inflating to described air cavity, and rear end cover structure 16 is provided with for the oil transportation hole to oiling in described oil pocket.

Front cover structure herein comprises the Inflation plug 7 being installed on cylinder body front port place and the locking cap 6 being fixedly assemblied in cylinder body front end, locking cap 6 is provided with the through hole 61 extended along the longitudinal direction, through hole 61 is ladder surface shoulder hole backwards, the front portion of Inflation plug 7 is provided with the boss 71 extended forward, boss 71 has outer circumferential face and the step surface forward of the inserting that to coincide with the path section of described through hole, the step surface of described boss 71, the outer circumferential face of boss, the ladder surface of shoulder hole and the inner peripheral surface of cylinder body 3 surround the groove structure accommodating end-face seal ring, Inflation plug 7 is coordinated with the unidirectional thrust of described locking cap 6 is spacing by described end-face seal ring, the air-supported structure be arranged on described Inflation plug comprises the vent be arranged at along the longitudinal direction on described Inflation plug, vent comprises the front extension diameter section arranged successively along the longitudinal direction, middle necking segment and rear extension diameter section, housing screw 10 and sealed steel ball 5 is disposed with along the longitudinal direction in front extension diameter section, inflation one-way valve 4 is provided with at the open rearward end place of rear extension diameter section, spiral plug 9 is also added at the front port place of front extension diameter section.

Specifically, end-face seal ring herein comprises the first back-up ring 21 and the second back-up ring 22 that primary seal circle 23 and correspondence are arranged in the medial and lateral of primary seal circle 23.

During concrete use, in air cavity 11, high pressure nitrogen is washed away by air-supported structure, high pressure nitrogen belongs to inert gas, other gases or moisture content can be avoided the corrosion of inner components, high pressure nitrogen is encapsulated in air cavity 11, high pressure nitrogen acts on Inflation plug 7, and Inflation plug 7 compresses forward end-face seal ring and assembles with the sealing realizing front cover structure and cylinder body.After shutoff main gas charge structure, in oil pocket 30, high pressure oil is inputted by the oil transportation hole on rear end cover structure 16 by high pressure oil pump, promote piston 2 to move forward, compression high pressure nitrogen carrys out stored energy, after reaching setting pressure, high pressure oil pump stops suppressing, high pressure oil applies active force on the piston 2 and keeps balancing with high pressure nitrogen reality active force on the piston 2, when hydraulic actuating mechanism action, hydraulic oil discharges pushing mechanical device acting, high pressure nitrogen expands, and by piston action in hydraulic system, still can keep the working pressure of hydraulic system.

In the present embodiment, to be compressed by movable spring seat 15 by stage clip 14 due to radial direction seal ring and control its decrement by stage clip 14, the frictional force of radial direction seal ring is made to keep stable, and, movable spring seat 15 is made to compress radial direction seal ring by stage clip 14, the compensation of the radial direction seal ring after to wearing and tearing can be realized like this, thus effectively can ensure the sealability of radial direction seal ring.

In the present embodiment, input pressurized gas by air-supported structure in air cavity, these pressurized gas will act on Inflation plug, realize the location to Inflation plug,, remained Inflation plug applied pressure by pressurized gas meanwhile, make the sealability of end-face seal ring more reliable.

In above-described embodiment, the orientation assemble of fixing spring seat and piston is realized by guiding attachment post, in other embodiments, also can by other means or structure realize the orientation assemble of fixing spring seat and piston as being directly assemblied on piston by screw-tightened linkage structure by fixing spring seat.

In above-described embodiment, radial direction seal ring adopts multiple seal washer arranged successively along the longitudinal direction to combine, and can select seal washer that is dissimilar, size so as required, meet sealability requirement.

The utility model also provides a kind of seal piston apparatus, and the structure of the seal piston apparatus in this embodiment is identical with the structure of the seal piston apparatus in above-mentioned accumulator, does not repeat them here.

Claims (10)

1. seal piston apparatus, comprise the piston axially extended along the longitudinal direction, on the outer circumferential face of piston, coaxial sleeve is equipped with radial direction seal ring, it is characterized in that: described piston is provided with the thrust surface that coordinate spacing with described radial direction seal ring thrust in described radial direction seal ring rear, seal piston apparatus also comprises the stage clip extended along the longitudinal direction being arranged in described radial direction seal ring front, top, stage clip front end is pressed on fixing spring seat, fixing spring seat is at fore-and-aft direction and described piston orientation assemble, stage clip rear end is pushed up to press-fit and is fitted on the movable spring seat of guiding movement along the longitudinal direction, the rear end of movable spring seat to have under the effect of stage clip backward radial direction seal ring described in pushing tow to coordinate the pushing tow face of locating and clamping described radial direction seal ring with described thrust surface.
2. seal piston apparatus according to claim 1, it is characterized in that: the leading flank of described piston is convexly equipped with the guiding attachment post extended forward along the longitudinal direction, described movable spring seat guiding movement is sleeved on described guiding attachment post, described fixing spring cover for seat is contained on described guiding attachment post, is provided with the collar realizing described fixing spring seat and piston orientation assemble in the longitudinal direction between fixing spring seat and guiding attachment post.
3. seal piston apparatus according to claim 1, it is characterized in that: the radial dimension of the outer circumferential face of described movable spring seat is less than the radial dimension of described radial direction seal ring, the outer circumferential face in movable spring seat front portion is by the rear cone structure diminished gradually to front radial dimension.
4. the seal piston apparatus according to claim 1 or 2 or 3, is characterized in that: described radial direction seal ring comprises the multiple seal washers superposing successively along the longitudinal direction and be sleeved on described piston.
5. accumulator, comprise the cylinder body extended along the longitudinal direction, packed-piston structure is provided with in cylinder body, packed-piston structure comprises movement along the longitudinal direction and is assemblied in piston inner chamber of cylinder block being divided into oil pocket and air cavity in cylinder body, on the outer circumferential face of piston, coaxial sleeve is equipped with the radial direction seal ring coordinated with cylinder body hydrodynamic reciprocating sealing, it is characterized in that: described piston is provided with the thrust surface that coordinate spacing with described radial direction seal ring thrust in described radial direction seal ring rear, seal piston apparatus also comprises the stage clip extended along the longitudinal direction being arranged in described radial direction seal ring front, top, stage clip front end is pressed on fixing spring seat, fixing spring seat is at fore-and-aft direction and described piston orientation assemble, stage clip rear end is pushed up to press-fit and is fitted on the movable spring seat of guiding movement along the longitudinal direction, the rear end of movable spring seat to have under the effect of stage clip backward radial direction seal ring described in pushing tow to coordinate the pushing tow face of locating and clamping described radial direction seal ring with described thrust surface.
6. accumulator according to claim 5, it is characterized in that: the leading flank of described piston is convexly equipped with the guiding attachment post extended forward along the longitudinal direction, described movable spring seat guiding movement is sleeved on described guiding attachment post, described fixing spring cover for seat is contained on described guiding attachment post, is provided with the collar realizing described fixing spring seat and piston orientation assemble in the longitudinal direction between fixing spring seat and guiding attachment post.
7. the accumulator according to claim 5 or 6, it is characterized in that: described air cavity is positioned at the front of described oil pocket, the rear and front end of cylinder body seals respectively and is equipped with front cover structure and rear end cover structure, front cover structure is provided with the air-supported structure for inflating to described air cavity, rear end cover structure is provided with for the oil transportation hole to oiling in described oil pocket, and described stage clip, movable spring seat and fixing spring seat are arranged in described air cavity.
8. accumulator according to claim 7, is characterized in that: described radial direction seal ring comprises the multiple seal washers superposing successively along the longitudinal direction and be sleeved on described piston.
9. accumulator according to claim 7, it is characterized in that: described front cover structure comprises the Inflation plug being installed on cylinder body front port place and the locking cap being fixedly assemblied in cylinder body front end, locking cap is provided with the through hole extended along the longitudinal direction, through hole is ladder surface shoulder hole backwards, the front portion of Inflation plug is provided with the boss extended forward, boss has outer circumferential face and the step surface forward of the inserting that to coincide with the path section of described through hole, the step surface of described boss, the outer circumferential face of boss, the ladder surface of shoulder hole and the inner peripheral surface of cylinder body surround the groove structure accommodating end-face seal ring, Inflation plug is coordinated with the unidirectional thrust of described locking cap is spacing by described end-face seal ring, described air-supported structure is arranged on described Inflation plug.
10. accumulator according to claim 9, it is characterized in that: described air-supported structure comprises the vent be arranged at along the longitudinal direction on described Inflation plug, vent comprises the front extension diameter section arranged successively along the longitudinal direction, middle necking segment and rear extension diameter section, be disposed with housing screw and sealed steel ball along the longitudinal direction in front extension diameter section, be provided with inflation one-way valve at the open rearward end place of rear extension diameter section.
CN201420686523.1U 2014-11-17 2014-11-17 The accumulator of a kind of seal piston apparatus and use sealing piston apparatus CN204327955U (en)

Priority Applications (1)

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CN201420686523.1U CN204327955U (en) 2014-11-17 2014-11-17 The accumulator of a kind of seal piston apparatus and use sealing piston apparatus

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Application Number Priority Date Filing Date Title
CN201420686523.1U CN204327955U (en) 2014-11-17 2014-11-17 The accumulator of a kind of seal piston apparatus and use sealing piston apparatus

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329458A (en) * 2014-11-17 2015-02-04 河南平高电气股份有限公司 Sealing piston device and energy accumulator using sealing piston device
CN108167263A (en) * 2017-12-08 2018-06-15 中国航天空气动力技术研究院 A kind of adjustable movable sealing structure of decrement
CN108323188A (en) * 2017-07-07 2018-07-24 京瓷办公信息系统株式会社 Developer container and the image forming apparatus for having the developer container

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329458A (en) * 2014-11-17 2015-02-04 河南平高电气股份有限公司 Sealing piston device and energy accumulator using sealing piston device
CN108323188A (en) * 2017-07-07 2018-07-24 京瓷办公信息系统株式会社 Developer container and the image forming apparatus for having the developer container
CN108167263A (en) * 2017-12-08 2018-06-15 中国航天空气动力技术研究院 A kind of adjustable movable sealing structure of decrement

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