WO2023005861A1 - Pressure relief valve state detection structure for electric hydraulic pipe-machining tool - Google Patents
Pressure relief valve state detection structure for electric hydraulic pipe-machining tool Download PDFInfo
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- WO2023005861A1 WO2023005861A1 PCT/CN2022/107570 CN2022107570W WO2023005861A1 WO 2023005861 A1 WO2023005861 A1 WO 2023005861A1 CN 2022107570 W CN2022107570 W CN 2022107570W WO 2023005861 A1 WO2023005861 A1 WO 2023005861A1
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- WIPO (PCT)
- Prior art keywords
- pressure relief
- relief valve
- detection structure
- pipe fitting
- control system
- Prior art date
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000003754 machining Methods 0.000 title abstract 5
- 239000004020 conductor Substances 0.000 claims description 41
- 239000012212 insulator Substances 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Definitions
- the utility model relates to a pipe fitting processing tool, in particular to an electrohydraulic pipe fitting processing tool with simple structure, which can synchronously and accurately control the stoppage of the pipe fitting processing tool when the pressure relief valve is opened, thereby improving the safety and reliability of the pipe fitting processing tool.
- Pressure valve state detection structure
- the motor drives the plunger through the transmission mechanism to continuously pump oil to the working chamber, the pressure in the working chamber continues to rise with the increase of the load, and the current of the motor also continues to rise.
- the pressure in the working chamber reaches the opening pressure of the pressure relief valve, the pressure relief valve The spool of the pressure valve moves outward, and the hydraulic oil in the working chamber flows into the oil storage chamber through the pressure relief valve. At this time, the pressure in the working chamber drops sharply, and the motor current also drops rapidly.
- the monitoring circuit detects the rapid drop in current, it controls the motor. Automatic shutdown.
- the disadvantage of this control method is that: since the driving structure is driven by an eccentric wheel, the eccentric wheel rotates once to drive the plunger once, and the driving load changes from small to large and then to small, and the current will also change accordingly. This fluctuation will cause The monitoring circuit misjudgments, or stops when the pressure relief valve is not opened. If the sensitivity of the monitoring circuit is lowered, it will not automatically stop after the pressure relief valve is opened, resulting in reduced safety and reliability of pipe fitting processing tools.
- the utility model mainly provides a pressure relief valve state detection structure of an electrohydraulic pipe fitting processing tool with a simple structure, which can accurately control the shutdown of the pipe fitting processing tool synchronously and accurately when the pressure relief valve is opened, thereby improving the safety and reliability of the pipe fitting processing tool.
- the invention solves the technical problem in the prior art that the pipe fitting processing tool is easily misjudged that the pressure relief valve is opened during normal working process, thereby causing the occurrence of abnormal shutdown phenomenon and the like.
- a pressure relief valve state detection structure of an electrohydraulic pipe fitting processing tool including a body and a pressure relief valve cavity arranged on the body, and a pressure relief valve cavity
- the pressure relief valve is slidingly connected inside, and the valve core of the pressure relief valve is provided with a trigger member, which is electrically connected to the control system.
- the hydraulic pipe fitting processing tool stops.
- a trigger member electrically connected to the control system outside the spool of the pressure relief valve the trigger member is triggered when the spool moves outward, and the control system can automatically control the electro-hydraulic pipe fitting processing tool to stop according to the trigger signal of the trigger member.
- the structure It is simple, and can simultaneously and accurately control the stoppage of the pipe fitting processing tool when the pressure relief valve is opened, without misjudgment of stoppage phenomenon, high reliability, and improves the safety of the pipe fitting processing tool.
- the trigger member is a detection switch electrically connected to the control system.
- the structure is simple, the cost is low, and it is easy and safe.
- the detection switch is fixed on the body corresponding to the outer end of the valve core.
- the detection switch is directly triggered by the spool, and the structure is more streamlined when the space of the whole machine is allowed.
- a shrapnel is provided on the outer end of the spool or the body corresponding to the outer end of the spool.
- the shrapnel is driven to move outward, and the detection switch is fixed on the body corresponding to the outer side of the shrapnel.
- the detection switch is fixed on the body corresponding to the outer side of the shrapnel.
- the pressure relief valve starts to release pressure, the valve core will push the shrapnel to move or deform outward during the outward movement.
- the shrapnel will contact the detection switch, and the detection switch will trigger and control After the system detects that the detection switch is triggered, it controls the motor to stop.
- the hydraulic oil in the working chamber flows into the oil storage chamber through the pressure relief valve cavity, and the spool of the pressure relief valve moves inward under the action of the return spring to close the pressure relief valve.
- Valve, the shrapnel resets under the action of its own elasticity.
- the detection switch is triggered by the shrapnel, which optimizes the space structure and makes the structure of the whole machine more compact and reasonable.
- the trigger member includes a first elastic conductor and a second elastic conductor electrically connected to the control system, one end of the first elastic conductor and the second elastic conductor is fixed on the first insulator, and the valve core When moving outward, the other end of the first elastic conductor is driven to abut against the second elastic conductor.
- An insulator can be interposed between two elastic conductors to form a trigger member, and the valve core drives one of the elastic conductors to elastically deform and contact the other elastic conductor to form a circuit, thereby forming a trigger signal, which is beneficial to the optimization of the space structure.
- the trigger member includes a conductor electrically connected to the control system, the conductor is fixed on the body through a second insulator, the body is also electrically connected to the control system, and the valve core abuts against the conductor when it moves outward .
- the valve core By interposing an insulator between the conductor and the main body to form a trigger member, when the valve core touches the conductor, it is enough to form a circuit, thereby forming a trigger signal, and the structure is more streamlined.
- the pressure relief valve state detection structure of the electrohydraulic pipe fitting processing tool of the utility model has the following advantages: by setting a trigger member electrically connected to the control system outside the spool of the pressure relief valve, the trigger member can be a detection switch, mutual Two insulated elastic conductors, or the structure of the body itself and the conductor insulated from the body, will touch the trigger member when the valve core moves outward, and the control system can automatically control the electrohydraulic pipe fittings processing according to the trigger signal of the trigger member Tool shutdown, simple structure, synchronous and accurate control of pipe fitting processing tool shutdown when the pressure relief valve is opened, no misjudgment of shutdown, high safety and reliability, and guaranteed performance of pipe fitting processing tools.
- Fig. 1 is the structural representation when the first kind of embodiment of the utility model
- Fig. 2 is a schematic structural view of the second embodiment of the present invention.
- Fig. 3 is a schematic structural view of the third embodiment of the present invention.
- Fig. 4 is a schematic structural view of the fourth embodiment of the present invention.
- the state detection structure of the pressure relief valve of the electrohydraulic pipe fitting processing tool of the present invention includes a body 1 of the pipe fitting processing tool.
- the trigger member is electrically connected to the control system 3
- the trigger member in this embodiment is the detection switch 5, and the corresponding valve under the outer end of the valve core 21
- the body 1 is equipped with a shrapnel 6 (the shrapnel 6 can also be directly fixed on the outer end of the spool 21), the upper end of the shrapnel 6 extends beyond the outer end surface of the spool 21, and the middle part of the shrapnel 6 extends outward to form an arc-shaped contact.
- the valve is fixed on the body 1 opposite to the arc contact. There is a gap between the arc contact and the detection switch 5.
- the control system 3 controls the electro-hydraulic pipe fitting processing tool to stop automatically according to the trigger signal of the detection switch 5 .
- the shrapnel 6 in the embodiment is removed, and the detection switch 5 is directly fixed on the body 1 facing the outer end of the valve core 21.
- the valve core 21 moves outward, its outer end touches the detection switch 5, and the control system 3 That is, the electro-hydraulic pipe fitting processing tool is automatically stopped according to the trigger signal of the detection switch 5 .
- All the other parts are identical to Example 1.
- the trigger member includes a first elastic conductor 71 and a second elastic conductor 72 electrically connected to the control system 3, the first elastic conductor 71 and the second elastic conductor 72 are arranged in parallel, and both The upper end of the first elastic conductor 73 is fixed on both sides of the first insulator 73, the lower end of the first elastic conductor 71 is located outside the end of the valve core 21, and when the valve core 21 moves outward, it drives the lower end of the first elastic conductor 71 to abut against the second On the two elastic conductors 72, in order to ensure good contact between the first elastic conductor 71 and the second elastic conductor 72, there is an arc extending inwards at the lower end of the first elastic conductor 71 or the second elastic conductor 72. contacts. All the other parts are identical to Example 1.
- the trigger member includes a conductor 81 electrically connected to the control system 3 , the lower end of the conductor 81 is fixed on the corresponding body 1 below the valve core 21 through the second insulator 82 , and the upper end extends to the valve core 21 Outside the end, the body 1 is also electrically connected to the control system 3 , and the valve core 21 abuts against the conductor 81 when it moves outward. All the other parts are identical to Example 1.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Drilling And Boring (AREA)
Abstract
A pressure relief valve state detection structure for an electric hydraulic pipe-machining tool, the detection structure comprising a body (1) and a pressure relief valve cavity (4) provided in the body, wherein a pressure relief valve (2) is slidably connected in the pressure relief valve cavity; a trigger component is provided outside a valve core (21) of the pressure relief valve; and the trigger component is electrically connected to a control system (3). When the valve core moves outward, the trigger component is triggered, and the control system controls the electric hydraulic pipe-machining tool to shut down according to a touch signal of the trigger component. The detection structure improves the safety and reliability of the use of the pipe-machining tool, and solves technical problems in the prior art such as an existing pipe-machining tool being prone to misjudging the opening of a pressure relief valve during normal operation, which in turn leads to the occurrence of abnormal shutdowns.
Description
本实用新型涉及一种管件加工工具，尤其涉及一种结构简单，可在泄压阀打开时同步准确控制管件加工工具停机，从而提高了管件加工工具使用安全可靠性的电动液压管件加工工具的泄压阀状态检测结构。The utility model relates to a pipe fitting processing tool, in particular to an electrohydraulic pipe fitting processing tool with simple structure, which can synchronously and accurately control the stoppage of the pipe fitting processing tool when the pressure relief valve is opened, thereby improving the safety and reliability of the pipe fitting processing tool. Pressure valve state detection structure.
在现有的电动液压工具中，如电动液压胀管器、扩管器和液压钳等，其中部分产品采用监控电机电流的变化来判断机器是否完成工作。其工作原理为：电机通过传动机构驱动柱塞持续泵油到工作腔，工作腔内压力随负载增加持续上升，电机电流也会持续上升，当工作腔内压力达到泄压阀开启压力后，泄压阀阀芯向外移动，工作腔内液压油通过泄压阀流入到储油腔，此时工作腔内压力急剧下降，电机电流也随之快速下降，监控电路检测到电流快速下降后控制电机自动停机。Among the existing electro-hydraulic tools, such as electro-hydraulic tube expanders, tube expanders and hydraulic pliers, some of them use the monitoring of the change of the motor current to judge whether the machine has completed the work. Its working principle is: the motor drives the plunger through the transmission mechanism to continuously pump oil to the working chamber, the pressure in the working chamber continues to rise with the increase of the load, and the current of the motor also continues to rise. When the pressure in the working chamber reaches the opening pressure of the pressure relief valve, the pressure relief valve The spool of the pressure valve moves outward, and the hydraulic oil in the working chamber flows into the oil storage chamber through the pressure relief valve. At this time, the pressure in the working chamber drops sharply, and the motor current also drops rapidly. After the monitoring circuit detects the rapid drop in current, it controls the motor. Automatic shutdown.
此控制方法缺点在于：由于驱动结构采用偏心轮驱动，偏心轮旋转一周驱动柱塞一次，驱动负载是由小到大再到小的变化过程，电流也会随之相应变化，这种波动会导致监控电路误判，或在泄压阀未开启时即停机，如果将监测电路敏感度调低，则会在泄压阀开启后也不会自动停机，导致管件加工工具使用的安全可靠性降低。The disadvantage of this control method is that: since the driving structure is driven by an eccentric wheel, the eccentric wheel rotates once to drive the plunger once, and the driving load changes from small to large and then to small, and the current will also change accordingly. This fluctuation will cause The monitoring circuit misjudgments, or stops when the pressure relief valve is not opened. If the sensitivity of the monitoring circuit is lowered, it will not automatically stop after the pressure relief valve is opened, resulting in reduced safety and reliability of pipe fitting processing tools.
本实用新型主要是提供了一种结构简单，可在泄压阀打开时同步准确控制管件加工工具停机，从而提高了管件加工工具使用安全可靠性的电动液压管件加工工具的泄压阀状态检测结构，解决了现有技术中存在的管件加工工具在正常工作过程中极易误判泄压阀打开，进而引发非正常停机现象的发生等的技术问题。The utility model mainly provides a pressure relief valve state detection structure of an electrohydraulic pipe fitting processing tool with a simple structure, which can accurately control the shutdown of the pipe fitting processing tool synchronously and accurately when the pressure relief valve is opened, thereby improving the safety and reliability of the pipe fitting processing tool. The invention solves the technical problem in the prior art that the pipe fitting processing tool is easily misjudged that the pressure relief valve is opened during normal working process, thereby causing the occurrence of abnormal shutdown phenomenon and the like.
本实用新型的上述技术问题主要是通过下述技术方案得以解决的：一种电动液压管件加工工具的泄压阀状态检测结构，包括本体及设于本体上的泄压阀腔，泄压阀腔内滑动连接着泄压阀，所述泄压阀的阀芯外设有触发构件，触发构件电连接着控制***，阀芯向外移动时触动触发构件，控制***根据触发构件的触动信号控制电动液压管件加工工具停机。通过在泄压阀的阀芯外设置与控制***电连接的触发构件，当阀芯外移时即触动触发构件，控制***即可根据触发构件的触动信号自动控制电动液压管件加工工具停机，结构简单，可在泄压阀打开时同步准确控制管件加工工具停机，不会发生误判停机现象，可靠性高，提高了管件加工工具使用的安全性。The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a pressure relief valve state detection structure of an electrohydraulic pipe fitting processing tool, including a body and a pressure relief valve cavity arranged on the body, and a pressure relief valve cavity The pressure relief valve is slidingly connected inside, and the valve core of the pressure relief valve is provided with a trigger member, which is electrically connected to the control system. The hydraulic pipe fitting processing tool stops. By setting a trigger member electrically connected to the control system outside the spool of the pressure relief valve, the trigger member is triggered when the spool moves outward, and the control system can automatically control the electro-hydraulic pipe fitting processing tool to stop according to the trigger signal of the trigger member. The structure It is simple, and can simultaneously and accurately control the stoppage of the pipe fitting processing tool when the pressure relief valve is opened, without misjudgment of stoppage phenomenon, high reliability, and improves the safety of the pipe fitting processing tool.
作为优选，所述触发构件为电连接在控制***上的检测开关。触发构件为检测开关时，结构简单，成本低，易安全。Preferably, the trigger member is a detection switch electrically connected to the control system. When the trigger member is a detection switch, the structure is simple, the cost is low, and it is easy and safe.
作为更优选，所述检测开关固定在阀芯外侧端对应的本体上。由阀芯直接触发检测开关，在整机空间允许的情况下，结构更加精减。More preferably, the detection switch is fixed on the body corresponding to the outer end of the valve core. The detection switch is directly triggered by the spool, and the structure is more streamlined when the space of the whole machine is allowed.
作为更优选，在所述阀芯的外侧端或阀芯外侧端对应的本体上设有弹片，阀芯向外移动时带动弹片外移，检测开关固定在弹片外侧对应的本体上。在阀芯外端部附近设置有弹片，当泄压阀开始泄压时，阀芯向外移动过程即推动弹片外移或变形外移，弹片即抵接在检测开关上，检测开关触发，控制***检测到检测开关触发后即控制电机停机，停机后，工作腔液压油通过泄压阀腔全部流入到储油腔，泄压阀的阀芯在复位弹簧作用下再向内移动，关闭泄压阀，弹片在自身弹力的作用下复位。通过弹片触发检测开关，优化了空间结构，使整机结构更加紧凑合理。More preferably, a shrapnel is provided on the outer end of the spool or the body corresponding to the outer end of the spool. When the spool moves outward, the shrapnel is driven to move outward, and the detection switch is fixed on the body corresponding to the outer side of the shrapnel. There is a shrapnel near the outer end of the valve core. When the pressure relief valve starts to release pressure, the valve core will push the shrapnel to move or deform outward during the outward movement. The shrapnel will contact the detection switch, and the detection switch will trigger and control After the system detects that the detection switch is triggered, it controls the motor to stop. After the shutdown, the hydraulic oil in the working chamber flows into the oil storage chamber through the pressure relief valve cavity, and the spool of the pressure relief valve moves inward under the action of the return spring to close the pressure relief valve. Valve, the shrapnel resets under the action of its own elasticity. The detection switch is triggered by the shrapnel, which optimizes the space structure and makes the structure of the whole machine more compact and reasonable.
作为优选，所述触发构件包括电连接在控制***上的第一弹性导电体和第二弹性导电体，第一弹性导电体和第二弹性导电体的一端固定在第一绝缘体上，阀芯向外移动时带动第一弹性导电体的另一端抵接在第二弹性导电体上。可以通过在两个弹性导电体间夹设绝缘体构成触发构件，阀芯带动其中一个弹性导电体弹性变形后与另一个弹性导电体抵接够成回路，进而形成触动信号，利于空间结构的优化。Preferably, the trigger member includes a first elastic conductor and a second elastic conductor electrically connected to the control system, one end of the first elastic conductor and the second elastic conductor is fixed on the first insulator, and the valve core When moving outward, the other end of the first elastic conductor is driven to abut against the second elastic conductor. An insulator can be interposed between two elastic conductors to form a trigger member, and the valve core drives one of the elastic conductors to elastically deform and contact the other elastic conductor to form a circuit, thereby forming a trigger signal, which is beneficial to the optimization of the space structure.
作为优选，所述触发构件包括电连接在控制***上的导电体，导电体通过第二绝缘体固定在本体上，本体也电连接在控制***上，阀芯向外移动时抵接在导电体上。通过在导电体与本体间夹设绝缘体构成触发构件，阀芯触碰导电体时即够成回路，进而形成触动信号，结构更加精简。Preferably, the trigger member includes a conductor electrically connected to the control system, the conductor is fixed on the body through a second insulator, the body is also electrically connected to the control system, and the valve core abuts against the conductor when it moves outward . By interposing an insulator between the conductor and the main body to form a trigger member, when the valve core touches the conductor, it is enough to form a circuit, thereby forming a trigger signal, and the structure is more streamlined.
因此，本实用新型的电动液压管件加工工具的泄压阀状态检测结构具有下述优点：通过在泄压阀的阀芯外设置与控制***电连接的触发构件，触发构件可以是检测开关、相互绝缘的两个弹性导电体，或者利用本体自身和与本体绝缘的导电体等结构形式，当阀芯外移时即触动触发构件，控制***即可根据触发构件的触动信号自动控制电动液压管件加工工具停机，结构简单，泄压阀打开时同步准确控制管件加工工具停机，不会发生误判停机现象，安全可靠性高，保证了管件加工工具的使用性能。Therefore, the pressure relief valve state detection structure of the electrohydraulic pipe fitting processing tool of the utility model has the following advantages: by setting a trigger member electrically connected to the control system outside the spool of the pressure relief valve, the trigger member can be a detection switch, mutual Two insulated elastic conductors, or the structure of the body itself and the conductor insulated from the body, will touch the trigger member when the valve core moves outward, and the control system can automatically control the electrohydraulic pipe fittings processing according to the trigger signal of the trigger member Tool shutdown, simple structure, synchronous and accurate control of pipe fitting processing tool shutdown when the pressure relief valve is opened, no misjudgment of shutdown, high safety and reliability, and guaranteed performance of pipe fitting processing tools.
图1是本实用新型第一种实施方式时的结构示意图；Fig. 1 is the structural representation when the first kind of embodiment of the utility model;
图2是本实用新型第二种实施方式时的结构示意图；Fig. 2 is a schematic structural view of the second embodiment of the present invention;
图3是本实用新型第三种实施方式时的结构示意图；Fig. 3 is a schematic structural view of the third embodiment of the present invention;
图4是本实用新型第四种实施方式时的结构示意图。Fig. 4 is a schematic structural view of the fourth embodiment of the present invention.
下面通过实施例，并结合附图，对本实用新型的技术方案作进一步具体的说明。The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.
实施例1：Example 1:
如图1所示，本实用新型的电动液压管件加工工具的泄压阀状态检测结构，包括管件加工工具的本体1，本体1上带有泄压阀腔4，泄压阀腔4内滑动连接着泄压阀2，在泄压阀腔4的端口处带有触发构件，触发构件电连接着控制***3，本实施例中的触发构件为检测开关5，在阀芯21外侧端下方对应的本体1上装有弹片6（弹片6也可以直接固定在阀芯21外侧端上），弹片6的上端部延伸至阀芯21外端面外，弹片6的中部向外延伸形成弧形触点，检测开关5阀固定在与弧形触点相对的本体1上，弧形触点与检测开关5带有间隙，阀芯21向外移动时带动弹片6变形外移，弧形触点触动检测开关5，控制***3即根据检测开关5的触动信号控制电动液压管件加工工具自动停机。As shown in Figure 1, the state detection structure of the pressure relief valve of the electrohydraulic pipe fitting processing tool of the present invention includes a body 1 of the pipe fitting processing tool. Next to the pressure relief valve 2, there is a trigger member at the port of the pressure relief valve chamber 4, the trigger member is electrically connected to the control system 3, the trigger member in this embodiment is the detection switch 5, and the corresponding valve under the outer end of the valve core 21 The body 1 is equipped with a shrapnel 6 (the shrapnel 6 can also be directly fixed on the outer end of the spool 21), the upper end of the shrapnel 6 extends beyond the outer end surface of the spool 21, and the middle part of the shrapnel 6 extends outward to form an arc-shaped contact. Switch 5 The valve is fixed on the body 1 opposite to the arc contact. There is a gap between the arc contact and the detection switch 5. When the valve core 21 moves outward, it drives the shrapnel 6 to deform and move outward, and the arc contact touches the detection switch 5. , the control system 3 controls the electro-hydraulic pipe fitting processing tool to stop automatically according to the trigger signal of the detection switch 5 .
实施例2：Example 2:
如图2所示，去掉实施例中的弹片6，检测开关5直接固定在阀芯21外侧端正对的本体1上，阀芯21向外移动时其外端部触动检测开关5，控制***3即根据检测开关5的触动信号控制电动液压管件加工工具自动停机。其余部分与实施例1完全相同。As shown in Figure 2, the shrapnel 6 in the embodiment is removed, and the detection switch 5 is directly fixed on the body 1 facing the outer end of the valve core 21. When the valve core 21 moves outward, its outer end touches the detection switch 5, and the control system 3 That is, the electro-hydraulic pipe fitting processing tool is automatically stopped according to the trigger signal of the detection switch 5 . All the other parts are identical to Example 1.
实施例3：Example 3:
如图3所示，触发构件包括电连接在控制***3上的第一弹性导电体71和第二弹性导电体72，第一弹性导电体71和第二弹性导电体72平行并列设置，两者的上端部固定在第一绝缘体73的两侧，第一弹性导电体71的下端位于阀芯21端部的外侧，阀芯21向外移动时带动第一弹性导电体71的下端抵接在第二弹性导电体72上，为了确保第一弹性导电体71和第二弹性导电体72接触良好，在第一弹性导电体71或第二弹性导电体72的下端部带有向内延伸的弧形触点。其余部分与实施例1完全相同。As shown in Figure 3, the trigger member includes a first elastic conductor 71 and a second elastic conductor 72 electrically connected to the control system 3, the first elastic conductor 71 and the second elastic conductor 72 are arranged in parallel, and both The upper end of the first elastic conductor 73 is fixed on both sides of the first insulator 73, the lower end of the first elastic conductor 71 is located outside the end of the valve core 21, and when the valve core 21 moves outward, it drives the lower end of the first elastic conductor 71 to abut against the second On the two elastic conductors 72, in order to ensure good contact between the first elastic conductor 71 and the second elastic conductor 72, there is an arc extending inwards at the lower end of the first elastic conductor 71 or the second elastic conductor 72. contacts. All the other parts are identical to Example 1.
实施例4：Example 4:
如图4所示，触发构件包括电连接在控制***3上的导电体81，导电体81的下端部通过第二绝缘体82固定在阀芯21下方对应的本体1上，上端延伸至阀芯21端部外侧，本体1也电连接在控制***3上，阀芯21向外移动时抵接在导电体81上。其余部分与实施例1完全相同。As shown in FIG. 4 , the trigger member includes a conductor 81 electrically connected to the control system 3 , the lower end of the conductor 81 is fixed on the corresponding body 1 below the valve core 21 through the second insulator 82 , and the upper end extends to the valve core 21 Outside the end, the body 1 is also electrically connected to the control system 3 , and the valve core 21 abuts against the conductor 81 when it moves outward. All the other parts are identical to Example 1.
本文中所描述的具体实施例仅仅是对本实用新型的构思作举例说明。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本实用新型的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are only examples to illustrate the concept of the present utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.
Claims (6)
- 一种电动液压管件加工工具的泄压阀状态检测结构，包括本体（1）及设于本体（1）上的泄压阀腔（4），泄压阀腔（4）内滑动连接着泄压阀（2），其特征在于：所述泄压阀（2）的阀芯（21）外设有触发构件，触发构件电连接着控制***（3），阀芯（21）向外移动时触动触发构件，控制***（3）根据触发构件的触动信号控制电动液管件加工工具停机。 A pressure relief valve state detection structure for an electro-hydraulic pipe fitting processing tool, comprising a body (1) and a pressure relief valve cavity (4) arranged on the body (1), the pressure relief valve cavity (4) is slidingly connected with a pressure relief valve The valve (2) is characterized in that: the spool (21) of the pressure relief valve (2) is provided with a trigger member outside, and the trigger member is electrically connected to the control system (3), and the spool (21) triggers when it moves outwards. The trigger component, the control system (3) controls the electrohydraulic pipe fitting processing tool to stop according to the trigger signal of the trigger component.
- 根据权利要求1所述的电动液压管件加工工具的泄压阀状态检测结构，其特征在于：所述触发构件为电连接在控制***（3）上的检测开关（5）。 The state detection structure of the pressure relief valve of the electro-hydraulic pipe fitting processing tool according to claim 1, characterized in that: the trigger member is a detection switch (5) electrically connected to the control system (3).
- 根据权利要求2所述的电动液压管件加工工具的泄压阀状态检测结构，其特征在于：所述检测开关（5）固定在阀芯（21）外侧端对应的本体（1）上。 The state detection structure of the pressure relief valve of the electro-hydraulic pipe fitting processing tool according to claim 2, characterized in that: the detection switch (5) is fixed on the body (1) corresponding to the outer end of the valve core (21).
- 根据权利要求2所述的电动液压管件加工工具的泄压阀状态检测结构，其特征在于：在所述阀芯（21）的外侧端或阀芯（21）外侧端对应的本体（1）上设有弹片（6），阀芯（21）向外移动时带动弹片（6）外移，检测开关（5）固定在弹片（6）外侧对应的本体（1）上。 The state detection structure of the pressure relief valve of the electro-hydraulic pipe fitting processing tool according to claim 2, characterized in that: on the outer end of the valve core (21) or on the body (1) corresponding to the outer end of the valve core (21) A shrapnel (6) is provided, and when the valve core (21) moves outward, it drives the shrapnel (6) to move outward, and the detection switch (5) is fixed on the body (1) corresponding to the outer side of the shrapnel (6).
- 根据权利要求1所述的电动液压管件加工工具的泄压阀状态检测结构，其特征在于：所述触发构件包括电连接在控制***（3）上的第一弹性导电体（71）和第二弹性导电体（72），第一弹性导电体（71）和第二弹性导电体（72）的一端固定在第一绝缘体（73）上，阀芯（21）向外移动时带动第一弹性导电体（71）的另一端抵接在第二弹性导电体（72）上。 The pressure relief valve state detection structure of the electro-hydraulic pipe fitting processing tool according to claim 1, characterized in that: the trigger member includes a first elastic conductor (71) and a second elastic conductor electrically connected to the control system (3). The elastic conductor (72), one end of the first elastic conductor (71) and the second elastic conductor (72) are fixed on the first insulator (73), and when the valve core (21) moves outward, it drives the first elastic conductor The other end of the body (71) abuts against the second elastic conductor (72).
- 根据权利要求1所述的电动液压管件加工工具的泄压阀状态检测结构，其特征在于：所述触发构件包括电连接在控制***（3）上的导电体（81），导电体（81）通过第二绝缘体（82）固定在本体（1）上，本体（1）也电连接在控制***（3）上，阀芯（21）向外移动时抵接在导电体（81）上。 The pressure relief valve state detection structure of the electro-hydraulic pipe fitting processing tool according to claim 1, characterized in that: the trigger member includes a conductor (81) electrically connected to the control system (3), and the conductor (81) The body (1) is fixed on the body (1) through the second insulator (82), and the body (1) is also electrically connected to the control system (3), and the valve core (21) abuts against the conductor (81) when it moves outward.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121711868.4U CN215634127U (en) | 2021-07-26 | 2021-07-26 | Pressure relief valve state detection structure of electric hydraulic pipe fitting machining tool |
| CN202121711868.4 | 2021-07-26 |
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| WO2023005861A1 true WO2023005861A1 (en) | 2023-02-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721912Y (en) * | 2004-04-16 | 2005-08-31 | 胡松海 | Shut-off device for water jet with low pressure protection |
| CN207817548U (en) * | 2018-01-29 | 2018-09-04 | 天津市曼恩工贸有限公司 | A kind of temperature control equipment and the heating furnace equipped with the temperature control equipment |
| CN209261952U (en) * | 2019-01-14 | 2019-08-16 | 嘉利特荏原泵业有限公司 | A kind of Quick closing valve for steam turbine control oil circuit relief valve |
| CN110307377A (en) * | 2019-06-10 | 2019-10-08 | 武汉长江控制设备研究所有限公司 | Spool position detection device and system |
| EP3643422A1 (en) * | 2018-10-25 | 2020-04-29 | Von Arx AG | Pressing device for work pieces |
| CN215634127U (en) * | 2021-07-26 | 2022-01-25 | 浙江飞越机电有限公司 | Pressure relief valve state detection structure of electric hydraulic pipe fitting machining tool |
-
2021
- 2021-07-26 CN CN202121711868.4U patent/CN215634127U/en active Active
-
2022
- 2022-07-25 WO PCT/CN2022/107570 patent/WO2023005861A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721912Y (en) * | 2004-04-16 | 2005-08-31 | 胡松海 | Shut-off device for water jet with low pressure protection |
| CN207817548U (en) * | 2018-01-29 | 2018-09-04 | 天津市曼恩工贸有限公司 | A kind of temperature control equipment and the heating furnace equipped with the temperature control equipment |
| EP3643422A1 (en) * | 2018-10-25 | 2020-04-29 | Von Arx AG | Pressing device for work pieces |
| CN209261952U (en) * | 2019-01-14 | 2019-08-16 | 嘉利特荏原泵业有限公司 | A kind of Quick closing valve for steam turbine control oil circuit relief valve |
| CN110307377A (en) * | 2019-06-10 | 2019-10-08 | 武汉长江控制设备研究所有限公司 | Spool position detection device and system |
| CN215634127U (en) * | 2021-07-26 | 2022-01-25 | 浙江飞越机电有限公司 | Pressure relief valve state detection structure of electric hydraulic pipe fitting machining tool |
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