WO2012159324A1 - 一种活塞式速度控制器 - Google Patents

一种活塞式速度控制器 Download PDF

Info

Publication number
WO2012159324A1
WO2012159324A1 PCT/CN2011/077026 CN2011077026W WO2012159324A1 WO 2012159324 A1 WO2012159324 A1 WO 2012159324A1 CN 2011077026 W CN2011077026 W CN 2011077026W WO 2012159324 A1 WO2012159324 A1 WO 2012159324A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
pin
baffle
speed controller
type speed
Prior art date
Application number
PCT/CN2011/077026
Other languages
English (en)
French (fr)
Inventor
何少敦
Original Assignee
He Shaodun
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by He Shaodun filed Critical He Shaodun
Publication of WO2012159324A1 publication Critical patent/WO2012159324A1/zh

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/44Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/466Throttling control, i.e. regulation of flow passage geometry
    • F16F9/467Throttling control, i.e. regulation of flow passage geometry using rotary valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/20Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with the piston-rod extending through both ends of the cylinder, e.g. constant-volume dampers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/3207Constructional features
    • F16F9/3228Constructional features of connections between pistons and piston rods

Definitions

  • the present invention relates to a speed controller, and more particularly to a piston speed controller.
  • the piston type speed controller controls the speed of the piston operation by controlling the flow rate of the medium flowing through the discharge hole.
  • the known piston type speed controller includes a flow medium, a piston, a piston rod, a piston cylinder, a piston cylinder end cover, and the like.
  • the sluice chamber and the sealing member are arranged on the piston cylinder body along the length direction.
  • the flowing medium flows from the piston cylinder into the outer sluice chamber through the bleed hole or into the piston cylinder from the outer sluice chamber.
  • By controlling the flow rate of the medium the speed at which the piston is operated is realized.
  • the problem is that today's piston type speed controllers require large external flow chambers, so that the processing of parts is difficult and the manufacturing cost is high.
  • the present invention provides a piston-type speed controller, which mainly includes a flowing medium, a piston, and a double Piston rod, cylinder, piston cylinder end cap assembly, rod end connector, rotating member.
  • the drain hole is disposed on the piston.
  • the piston moves, the flowing medium flows from one side of the piston into the other side of the piston through the drain hole, and the flow rate of the medium is controlled by controlling the area of the drain hole, thereby achieving the control piston.
  • the purpose of the running speed is therefore that the piston type speed controller proposed by the present invention does not require an external flow chamber, so that the parts are easy to process and the manufacturing cost is low.
  • the technical solution adopted by the present invention to solve the technical problem thereof is as follows:
  • the piston type speed controller proposed by the present invention mainly comprises a flowing medium, a piston, a first piston rod and a second piston rod, a cylinder barrel, and a first piston cylinder end cover assembly.
  • a second piston cylinder end cap assembly a rod end connecting member, and a rotating member
  • the piston has a double piston rod, and is further provided with a baffle plate attached to the piston, and one end of the first piston rod is fixedly mounted with the piston
  • the other end is provided with a rod end connecting member
  • one end of the second piston rod is fixedly fixed with the baffle plate and the other end is provided with a rotating member
  • the piston and the baffle are respectively provided with a drain hole, a piston drain hole and a baffle drain hole
  • the alignment constitutes a medium circulation throttle pipe, and the flow passage area of the medium circulation throttle pipe changes when the piston discharge hole and the baffle discharge hole are misaligned.
  • the utility model has the beneficial effects that the piston type speed controller proposed by the invention does not need to be provided with an external flow chamber, has a simple structure, is easy to process parts, and has low manufacturing cost.
  • 1, 2, 3 and 4 are schematic views of the structure of the first embodiment of the present invention.
  • 5, 6 and 7 are schematic views showing the structure of a second embodiment of the present invention.
  • Figures 8, 9 and 10 are schematic views of the structure of a third embodiment of the present invention.
  • FIG. 1 is a front view of the present embodiment
  • FIG. 2 is a front view
  • FIG. 3 and FIG. 4 are perspective views
  • the piston type speed controller of the present embodiment mainly includes a flowing medium 7, a piston 2A, a first piston rod 1A, and a second piston rod 1B.
  • a cylinder 3 a first piston cylinder end cover assembly 4A and a second piston cylinder end cover 4B, a rod end connecting member 5, and a rotating member 6, wherein the piston type speed controller has a first piston rod 1A and a second
  • the piston rod 1B is further provided with a baffle 2B that is fitted to the piston 2A.
  • first piston rod 1A is fixedly mounted to the piston 2A and the other end is mounted with the rod end connecting member 5, and one end of the second piston rod 1B is connected to the baffle plate.
  • 2B is fixedly mounted and the other end is mounted with the rotating member 6, and the piston 2A and the baffle 2B are respectively provided with the bleed holes 2A1, 2B1, and when the piston bleed hole 2A1 and the baffle bleed hole 2B1 are aligned, the piston bleed hole 2A1 And the baffle discharge hole 2B1 constitutes a medium circulation section Pipes, drain hole when the piston 2A1 and 2B1 baffle plate drain hole offset, the medium flow through the flow area of the throttle duct changes;
  • one end of the first piston rod 1A is fixedly fixed to the piston 2A through the pin 2A2, and one end of the second piston rod 1B is fixedly fixed to the baffle 2B through the shaft pin 2B2;
  • the piston rod and the piston are fixedly mounted in other known manners; in the embodiment, a pin 2A3 is further disposed on the piston 2A, and a pin groove 2B11 is further disposed on the baffle 2B, and the pin 2A3 is disposed on the pin Inside the shaft groove 2B11, the pin 2A3 and the pin groove 2B11 cooperate with the rotation angle of the restriction baffle 2B, and the piston 2A is further provided with a snap ring 8 which engages the piston 2A and the baffle 2B.
  • the end cap assembly 4B is further provided with a mounting hole 4B1; the present invention suggests that other known forms can be used to mount the fixed piston;
  • the present invention suggests that the connection between the end cap assemblies 4A, 4B and the cylinder barrel 3 can be carried out by the currently known mounting method, in the fifth edition of the "Mechanical Design Manual” published by Cheng Daxian, editor of the Chemical Industry Press. Volume 5, Chapter 4, Parts 4 and 5, discloses the general structure of the hydraulic cylinder; the oil port of the piston is mainly used to refuel the piston and then seal the oil inside the piston with a plug.
  • the Mechanical Design Manual, Fifth Edition, Volume 5, Part 5 has a public description of the structure and location of the port, and the present invention is not specifically described in the prior art.
  • FIG 5, 6 and 7 are schematic views showing the structure of a second embodiment of the present invention, and showing that, unlike the first embodiment, in the present embodiment, a pin 2A4 is further provided on the piston 2A.
  • a pin groove 2B11 is further disposed on the baffle 2B, the pin 2A4 is disposed inside the pin groove 2B11, and the pin 2A4 and the pin groove 2B11 cooperate with the rotation angle of the restriction baffle 2B, and the pin 2A4 is Pin with end cap.
  • a pin groove 2A11 is further provided on the piston 2A.
  • the flow plate 2B is further provided with a pin 2B3, and the pin 2B3 is disposed inside the pin groove 2A11.
  • the pin 2B3 is engaged with the pin groove 2A11, and the rotation angle of the baffle 2B is restricted.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)

Abstract

一种活塞式速度控制器,具有第一活塞杆(1A)、第二活塞杆(1B),还设置有与活塞(2A)贴合的挡流板(2B),第一活塞杆(1A)的一端与活塞(2A)安装固定而另一端安装杆端连接件(5),第二活塞杆(1B)的一端与挡流板(2B)安装固定而另一端安装转动件(6),活塞(2A)和挡流板(2B)分别设置有泄流孔(2A1、2B1),活塞泄流孔(2A1)和挡流板泄流孔(2B1)对齐构成介质流通节流管道,活塞泄流孔(2A1)和挡流板泄流孔(2B1)错位时该介质流通节流管道通流面积发生变化。该活塞式速度控制器不需要设置外畜流室,结构简单,零部件加工容易,制造成本低。

Description

一种活塞式速度控制器
技术领域
本发明涉及一种速度控制器, 尤其是一种活塞式速度控制器。
背景技术
活塞式速度控制器是通过控制介质的流经泄流孔的流速来控制活塞运行的速度, 公知的活塞式速度控 制器, 包括流动介质、 活塞、 活塞杆、 活塞缸、 活塞缸端盖、 外畜流室以及密封件, 泄流孔是沿长度方向 设置在活塞缸体上,当活塞移动时,流动介质通过泄流孔从活塞缸流入外畜流室或从外畜流室流入活塞缸, 通过控制介质的流速, 实现控制活塞运行的速度, 问题是, 现今的活塞式速度控制器由于需要设置外畜流 室, 因而零部件的加工难度大, 制造成本高。
发明内容
为了克服现今的活塞式速度控制器由于需要设置外畜流室, 导致零部件的加工难度大, 制造成本高的 缺点, 本发明提出一种活塞式速度控制器, 主要包括流动介质、 活塞、 双活塞杆、 缸筒、 活塞缸端盖组件、 杆端边接件、 转动件。 泄流孔是设置活塞上, 当活塞移动时, 流动介质是通过泄流孔从活塞的一侧流入活 塞的另一侧, 通过控制泄流孔的面积来控制介质的流速, 以此达到控制活塞运行速度的目的, 因此, 本发 明提出的活塞式速度控制器, 不需要设置外畜流室, 因而零部件加工容易, 制造成本低。
本发明解决其技术问题所采用的技术方案是: 本发明提出的活塞式速度控制器, 主要包括流动介质、 活塞、 第一活塞杆和第二活塞杆、 缸筒、 第一活塞缸端盖组件和第二活塞缸端盖组件、 杆端连接件、 转动 件, 其特征是, 活塞具有双活塞杆, 还设置有与活塞贴合的挡流板, 第一活塞杆的一端与活塞安装固定而 另一端安装杆端连接件, 第二活塞杆的一端与挡流板安装固定而另一端安装转动件, 活塞和挡流板分别设 置有泄流孔, 活塞泄流孔和挡流板泄流孔对齐构成介质流通节流管道, 活塞泄流孔和挡流板泄流孔错位时 所述介质流通节流管道通流面积发生变化。 当活塞移动时, 流动介质经所述介质流通节流管道从活塞的一 侧流经活塞的另一侧, 当转动转动件时, 所述介质流通节流管道通流面积发生变化, 由此改变活塞移动的 速度。
本发明的有益效果是, 本发明提出的活塞式速度控制器不需要设置外畜流室, 结构简单, 零件加工容 易, 制造成本低。
附图说明
图 1、 图 2、 图 3和图 4是本发明第一个实施例的结构示意图。
图 5、 图 6和图 7是本发明第二个实施例的结构示意图。
图 8、 图 9和图 10是本发明第三个实施例的结构示意图。 图中: 1A第一活塞杆、 IB第二活塞杆, 2A活塞, 2B挡流板, 2A1、 2B1泄流孔, 2A2、 2B2、 2A3、 2B3、 2A4销轴, 2A11、 2B11销轴槽, 3缸筒, 4A、 4B端盖组件, 4B1活塞安装孔, 5杆端连接件, 6转动 件, 7流动介质, 8卡环。
具体实施方式
图 1、 图 2、 图 3和图 4是本发明第一个实施例的结构示意图, 图 1是本实施例的主视图, 图 2、 图 3 和图 4是本实施例的内部结构示意图, 图 2是主视图、 图 3和图 4是立体图, 在图 1中显示, 本实施例的 活塞式速度控制器, 主要包括流动介质 7、 活塞 2A、 第一活塞杆 1A和第二活塞杆 1B、 缸筒 3、 第一活塞 缸端盖组件 4A和第二活塞缸端盖 4B、 杆端连接件 5、 转动件 6, 其特征是, 活塞式速度控制器具有第一活 塞杆 1A和第二活塞杆 1B, 还设置有挡流板 2B与活塞 2A贴合, 第一活塞杆 1A的一端与活塞 2A安装固定 而另一端安装杆端连接件 5, 第二活塞杆 1B的一端与挡流板 2B安装固定而另一端安装转动件 6, 活塞 2A 和挡流板 2B分别设置有泄流孔 2A1、 2B1, 当活塞泄流孔 2A1和挡流板泄流孔 2B1对齐时,活塞泄流孔 2A1 和挡流板泄流孔 2B1构成介质流通节流管道, 当活塞泄流孔 2A1和挡流板泄流孔 2B1错位时, 所述介质流 通节流管道通流面积发生变化;
在本实施例中, 第一活塞杆 1A的一端是通过销轴 2A2与活塞 2A安装固定, 第二活塞杆 1B的一端是 通过轴销 2B2与挡流板 2B安装固定; 本发明提示, 还可以采用其它公知的方式使活塞杆与活塞安装固定; 在本实施例中, 在活塞 2A上还设置有销轴 2A3、 在挡流板 2B上还设置有销轴槽 2B11 , 销轴 2A3设置 在销轴槽 2B11里面, 销轴 2A3与销轴槽 2B11配合限制挡流板 2B的转动角度, 在活塞 2A上还设置有卡环 8, 卡环 8使活塞 2A与挡流板 2B贴合在一起。 当活塞移动时, 流动介质 7经所述介质流通节流管道从活 塞的一侧流经活塞的另一侧, 当转动转动件 6时, 所述介质流通节流管道通流面积发生变化, 由此改变活 塞移动的速度。
在本实施例中, 在端盖组件 4B上还设置有安装孔 4B1 ; 本发明提示, 还可以采用其它公知的形式来安 装固定活塞;
本发明提示, 端盖组件 4A、 4B与缸筒 3之间的连接安装方式可以采用目前公知的安装方式, 在由成 大先主编、 化学工业出版社出版的第五版《机械设手册》第 5卷第 6章第 4部份及第 5部份对液压缸的通 用结构有公开说明; 活塞的油口, 主要是用于对活塞进行加油然后用堵头将油封闭在活塞里面, 在 《机械 设手册》 第五版第 5卷第 5部份对油口的结构和位置有公开说明, 本发明对公开技术不再具体说明。
图 5、 图 6和图 7是本发明第二个实施例的结构示意图, 图中显示, 与第一个实施例不同的是, 在本 实施例中, 在活塞 2A上还设置有销轴 2A4、 在挡流板 2B上还设置有销轴槽 2B11 , 销轴 2A4设置在销轴槽 2B11里面, 销轴 2A4与销轴槽 2B11配合限制挡流板 2B的转动角度, 所述销轴 2A4是带端帽的销轴。
图 8、 图 9、 图 10是本发明第三个实施例的结构示意图, 与第一个实施例不同的是, 在本实施例中, 在活塞 2A上还设置有销轴槽 2A11 , 在挡流板 2B上还设置有销轴 2B3, 销轴 2B3设置在销轴槽 2A11里面, 销轴 2B3与销轴槽 2A11配合, 挡流板 2B的转动角度受到限制。

Claims

1. 一种活塞式速度控制器, 主要包括流动介质(7)、 活塞(2A)、 第一活塞杆(1A)和第二活塞杆(1B)、 缸筒 (3)、 第一活塞缸端盖组件 (4A) 和第二活塞缸端盖 (4B)、 杆端连接件 (5)、 转动件 (6), 其特征 是:活塞式速度控制器具有第一活塞杆(1A)、第二活塞杆(1B),还设置有与活塞(2A)贴合的挡流板(2B), 第一活塞杆 (1A) 的一端与活塞 (2A) 安装固定而另一端安装杆端连接件 (5), 第二活塞杆 (1B) 的一端 与挡流板(2B)安装固定而另一端安装转动件(6), 活塞(2A)和挡流板(2B)分别设置有泄流孔(2A1)、
(2B1), 活塞泄流孔 (2A1) 和挡流板泄流孔 (2B1) 对齐构成介质流通节流管道, 活塞泄流孔 (2A1) 和 挡流板泄流孔 (2B1) 错位时所述介质流通节流管道通流面积发生变化。
2. 根据权利要求 1 所述的活塞式速度控制器, 其特征是: 第一活塞杆 (1A) 的一端是通过销轴 (2A2) 活塞 (2A) 安装固定, 第二活塞杆 (1B) 的一端是通过轴销 (2B2) 与挡流板 (2B) 安装固定。
3. 根据权利要求 1所述的活塞式速度控制器, 其特征是: 在活塞 (2A) 上还设置有销轴 (2A3)、 在挡流 板 (2B)上还设置有销轴槽 (2B11),销轴 (2A3)设置在销轴槽 (2B11)里面, 销轴 (2A3)与销轴槽 (2B11) 配合限制挡流板 (2B) 的转动角度, 在活塞 (2A) 上还设置有卡环 (8), 卡环 (8) 使活塞 (2A) 与挡流 板 (2B) 贴合在一起。
4. 根据权利要求 1所述的活塞式速度控制器, 其特征是: 在端盖组件 (4B) 上还设置有安装孔 (4B1)。
5. 根据权利要求 1所述的活塞式速度控制器, 其特征是: 在活塞 (2A) 上还设置有销轴 (2A4)、 在挡流 板 (2B)上还设置有销轴槽 (2B11),销轴 (2A4)设置在销轴槽 (2B11)里面, 销轴 (2A4)与销轴槽 (2B11) 配合限制挡流板 (2B) 的转动角度, 所述销轴 (2A4) 是带端帽的销轴。
6. 根据权利要求 1 所述的活塞式速度控制器, 其特征是: 在活塞 (2A) 上还设置有销轴槽 (2A11), 在 挡流板 (2B)上还设置有销轴 (2B3),销轴 (2B3)设置在销轴槽(2A11)里面,销轴 (2B3)与销轴槽 (2A11) 配合限制挡流板 (2B) 的转动角度。
PCT/CN2011/077026 2011-05-23 2011-07-11 一种活塞式速度控制器 WO2012159324A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011101339565A CN102182721A (zh) 2011-05-23 2011-05-23 一种活塞式速度控制器
CN201110133956.5 2011-05-23

Publications (1)

Publication Number Publication Date
WO2012159324A1 true WO2012159324A1 (zh) 2012-11-29

Family

ID=44568991

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/077026 WO2012159324A1 (zh) 2011-05-23 2011-07-11 一种活塞式速度控制器

Country Status (2)

Country Link
CN (1) CN102182721A (zh)
WO (1) WO2012159324A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4077963A4 (en) * 2019-12-19 2024-01-10 ROM Acquisition Corporation HYDRAULIC SHOCK ABSORBER

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103486220B (zh) * 2013-08-29 2015-12-16 吉林大学 挡流板可拆卸可更换式限矩型液力偶合器
CN104534006A (zh) * 2014-12-30 2015-04-22 罗成 带控制开关的可双向驱动的气体弹簧
CN104564908A (zh) * 2014-12-31 2015-04-29 中船重工中南装备有限责任公司 一种缓冲液压缸

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU848783A1 (ru) * 1978-12-18 1981-07-23 Предприятие П/Я Г-4086 Силовой цилиндр с тормозным устройством
SU1201564A2 (ru) * 1984-06-26 1985-12-30 Предприятие П/Я Г-4086 Силовой цилиндр с тормозным устройством
CN101191509A (zh) * 2006-11-29 2008-06-04 Smc株式会社 流体压力缸
CN102012707A (zh) * 2010-06-05 2011-04-13 何少敦 一种活塞式速度控制器
CN201804278U (zh) * 2010-06-05 2011-04-20 何少敦 一种活塞式速度控制器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2235924Y (zh) * 1995-08-04 1996-09-25 兰州铁路局科学技术研究所 单向减速顶回流阻通器
CN202056134U (zh) * 2011-05-23 2011-11-30 何少敦 一种活塞式速度控制器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU848783A1 (ru) * 1978-12-18 1981-07-23 Предприятие П/Я Г-4086 Силовой цилиндр с тормозным устройством
SU1201564A2 (ru) * 1984-06-26 1985-12-30 Предприятие П/Я Г-4086 Силовой цилиндр с тормозным устройством
CN101191509A (zh) * 2006-11-29 2008-06-04 Smc株式会社 流体压力缸
CN102012707A (zh) * 2010-06-05 2011-04-13 何少敦 一种活塞式速度控制器
CN201804278U (zh) * 2010-06-05 2011-04-20 何少敦 一种活塞式速度控制器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4077963A4 (en) * 2019-12-19 2024-01-10 ROM Acquisition Corporation HYDRAULIC SHOCK ABSORBER

Also Published As

Publication number Publication date
CN102182721A (zh) 2011-09-14

Similar Documents

Publication Publication Date Title
CN102203369B (zh) 阻尼器
WO2017113606A1 (zh) 一种具有伸缩和摆动功能的一体式液压缸及其应用
WO2012159324A1 (zh) 一种活塞式速度控制器
CN204387380U (zh) 保温半球阀
CN104527630B (zh) 一种活塞式气控截止阀
WO2019128131A1 (zh) 一种具有防剪结构的液压油缸
WO2011150722A1 (zh) 一种活塞式速度控制器
CN205809718U (zh) 管道阀门用介质流速控制装置
CN201972990U (zh) 液压滑阀
CN206626241U (zh) 内置驱动轴流式调节阀
CN204472782U (zh) 一种活塞式气控截止阀
CN205026127U (zh) 一种密封旋筒阀
CN202056134U (zh) 一种活塞式速度控制器
CN203476693U (zh) 一种容积泵的单向阀
CN210566498U (zh) 一种水用减压阀
CN209800775U (zh) 一种安全密封角阀
CN208546531U (zh) 一种管道双向密封的液压控制启闭的液压阀门
CN2581762Y (zh) 直流式液控阀
CN205446005U (zh) 一种柱塞泵阀组
CN206816908U (zh) 一种旋转节流阀
CN212584343U (zh) 一种可调节的三通截止阀
CN202483980U (zh) 压力流量联动阀
CN204739245U (zh) 一种过滤球阀接头
CN103644326A (zh) 一种两阶段缓冲式防水锤同轴阀
CN201221609Y (zh) 水力控制角阀

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11866250

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11866250

Country of ref document: EP

Kind code of ref document: A1