CN218919781U - Relay protection terminal lifting device - Google Patents

Relay protection terminal lifting device Download PDF

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Publication number
CN218919781U
CN218919781U CN202221992183.6U CN202221992183U CN218919781U CN 218919781 U CN218919781 U CN 218919781U CN 202221992183 U CN202221992183 U CN 202221992183U CN 218919781 U CN218919781 U CN 218919781U
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rod
fixedly connected
relay protection
transition
telescopic rod
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戴鹏
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Abstract

本实用新型公开了一种继电保护端子提起器,包括外部框架,所述外部框架的内部插接有竖向伸缩杆,所述竖向伸缩杆的表面活动连接有旋转盘,所述旋转盘的表面开设有移动槽,所述移动槽的内部活动连接有支撑杆,所述支撑杆端部的一侧螺纹连接有凸起螺纹杆。本实用新型通过设置的竖向伸缩杆、支撑杆、电机本体、过渡盘、过渡杆、安装盘、横向伸缩杆、提起板、连接柱和旋转环,避免装置对内部的其它电子元件产生损坏,装置内部的连接柱的作用为辅助旋转盘与旋转环之间进行连接,旋转环与竖向伸缩杆内部的宣战空间之间配合,使得支撑杆可以带动凸起螺纹杆发生偏转,进而进行下一力的延续改变,达到了装置使用时可以更加精确的对装置进行调节的目的。

Figure 202221992183

The utility model discloses a relay protection terminal lifter, which comprises an external frame, a vertical telescopic rod is plugged inside the external frame, the surface of the vertical telescopic rod is movably connected with a rotating disk, and the rotating disk A moving groove is provided on the surface of the moving groove, and a supporting rod is movably connected inside the moving groove, and a raised threaded rod is threaded on one side of the end of the supporting rod. The utility model prevents the device from damaging other internal electronic components through the vertical telescopic rod, support rod, motor body, transition plate, transition rod, installation plate, horizontal telescopic rod, lifting plate, connecting column and rotating ring. The role of the connecting column inside the device is to assist the connection between the rotating disk and the rotating ring. The rotating ring cooperates with the declaration space inside the vertical telescopic rod, so that the supporting rod can drive the raised threaded rod to deflect, and then proceed to the next step. The continuous change of force achieves the purpose of adjusting the device more accurately when the device is in use.

Figure 202221992183

Description

一种继电保护端子提起器A relay protection terminal lifter

技术领域technical field

本实用新型涉及继电保护端子技术领域,具体为一种继电保护端子提起器。The utility model relates to the technical field of relay protection terminals, in particular to a lifter for relay protection terminals.

背景技术Background technique

随着国民经济的高速发展,电力工业也得到了高速发展,我国也已建成了以超高压输电线路为主网的电网。以前输电线路中的继电保护大多采用国内产品,由于该国内产品的继电保护端子一般用螺丝固定,所以只需用螺丝刀将固定螺丝下掉,即可将继电保护端子提起。With the rapid development of the national economy, the power industry has also developed rapidly, and my country has also built a power grid with ultra-high voltage transmission lines as the main network. In the past, most of the relay protection in transmission lines used domestic products. Since the relay protection terminals of domestic products were generally fixed with screws, the relay protection terminals could be lifted only by removing the fixing screws with a screwdriver.

现有的装置进行调节时,不够精确,使得装置本身在使用时,容易对装置内部的另外的电子元件产生损坏。因此,需要设计一种继电保护端子提起器。When the existing device is adjusted, it is not precise enough, so that the device itself is easy to cause damage to other electronic components inside the device when it is in use. Therefore, it is necessary to design a relay protection terminal lifter.

实用新型内容Utility model content

本实用新型的目的在于提供一种继电保护端子提起器,具备装置使用时可以更加精确的对装置进行调节的优点,解决了背景技术中的问题。The purpose of the utility model is to provide a relay protection terminal lifter, which has the advantage of being able to adjust the device more accurately when the device is in use, and solves the problems in the background technology.

为实现上述目的,本实用新型提供如下技术方案:一种继电保护端子提起器,包括外部框架,所述外部框架的内部插接有竖向伸缩杆,所述竖向伸缩杆的表面活动连接有旋转盘,所述旋转盘的表面开设有移动槽,所述移动槽的内部活动连接有支撑杆,所述支撑杆端部的一侧螺纹连接有凸起螺纹杆,所述凸起螺纹杆的端部安装有电机本体。In order to achieve the above purpose, the utility model provides the following technical solutions: a relay protection terminal lifter, including an external frame, a vertical telescopic rod is plugged inside the external frame, and the surface of the vertical telescopic rod is movably connected There is a rotating disk, the surface of the rotating disk is provided with a moving groove, the inside of the moving groove is movably connected with a support rod, and one side of the end of the support rod is threaded with a protruding threaded rod, and the protruding threaded rod The end of the motor body is installed.

优选的,所述支撑杆的外表面连接有过渡盘,所述过渡盘的表面开设有过渡槽,所述过渡槽的内部活动连接有过渡杆。Preferably, a transition plate is connected to the outer surface of the support rod, a transition groove is formed on the surface of the transition plate, and a transition rod is movably connected inside the transition groove.

优选的,所述过渡杆的表面连接有安装盘,所述安装盘的两侧均固定连接有横向伸缩杆。Preferably, a mounting plate is connected to the surface of the transition rod, and transverse telescopic rods are fixedly connected to both sides of the mounting plate.

优选的,所述外部框架的内部开设有与横向伸缩杆相适配的插接槽,所述横向伸缩杆端部的表面固定连接有提起板。Preferably, the interior of the outer frame is provided with an insertion slot compatible with the horizontal telescopic rod, and a lifting plate is fixedly connected to the surface of the end of the lateral telescopic rod.

优选的,所述旋转盘的背面固定连接有连接柱,所述连接柱的端部固定连接有旋转环。Preferably, a connecting post is fixedly connected to the back of the rotating disk, and a rotating ring is fixedly connected to the end of the connecting post.

优选的,所述外部框架的底部固定连接有第一支撑柱,所述第一支撑柱的端部固定连接有限位板。Preferably, the bottom of the external frame is fixedly connected with a first support column, and the end of the first support column is fixedly connected with a limiting plate.

优选的,所述外部框架的顶部固定连接有第二支撑柱,所述第二支撑柱的顶端固定连接有安装板,所述安装板底部的中部安装有电动伸缩柱,所述安装板的上表面安装有外部开关。Preferably, the top of the external frame is fixedly connected with a second support column, the top end of the second support column is fixedly connected with a mounting plate, the middle part of the bottom of the mounting plate is equipped with an electric telescopic column, and the upper part of the mounting plate Surface mount with external switch.

与现有技术相比,本实用新型的有益效果如下:Compared with the prior art, the beneficial effects of the utility model are as follows:

一、本实用新型通过设置的竖向伸缩杆、支撑杆、凸起螺纹杆、电机本体、过渡盘、过渡杆、安装盘、横向伸缩杆、提起板、连接柱和旋转环,工作人员将装置进行使用时,首先将装置内部的电机本体进行启动,之后装置内部的电机本体带动凸起螺纹杆进行旋转,使得装置内部的支撑杆在凸起螺纹杆的外表面进行平移,支撑杆进行平移的时候会带动装置内部的设备发生角度的偏转,支撑杆带动过渡盘发生偏转,使得装置内部的过渡杆发生偏转,使得竖向伸缩杆下降相同的距离,但是最后支撑杆带动安装盘以及横向伸缩杆发生左右移动的距离增加,在装置本身通过提起板对继电保护器进行提起时可以改变装置内部的产生的距离,使得工作人员可以控制提起板对继电保护器本体的提起距离的更改,避免装置对内部的其它电子元件产生损坏,装置内部的连接柱的作用为辅助旋转盘与旋转环之间进行连接,旋转环与竖向伸缩杆内部的宣战空间之间配合,使得支撑杆可以带动凸起螺纹杆发生偏转,进而进行下一力的延续改变,达到了装置使用时可以更加精确的对装置进行调节的目的。1. The utility model is equipped with a vertical expansion rod, a support rod, a raised threaded rod, a motor body, a transition plate, a transition rod, a mounting plate, a horizontal expansion rod, a lifting plate, a connecting column and a rotating ring. When in use, first start the motor body inside the device, and then the motor body inside the device drives the raised threaded rod to rotate, so that the support rod inside the device translates on the outer surface of the raised threaded rod, and the support rod moves in translation Sometimes it will drive the equipment inside the device to deflect at an angle, and the support rod will drive the transition plate to deflect, causing the transition rod inside the device to deflect, so that the vertical telescopic rod will drop the same distance, but finally the support rod will drive the mounting plate and the horizontal telescopic rod The distance of left and right movement increases, and when the device itself lifts the relay protector by the lifting plate, the generated distance inside the device can be changed, so that the staff can control the change of the lifting distance of the relay protector body by the lifting plate, avoiding The device will cause damage to other electronic components inside. The connecting column inside the device is used to assist the connection between the rotating disk and the rotating ring. The threaded rod is deflected, and then the next force is continuously changed, so that the purpose of adjusting the device more accurately when the device is in use is achieved.

二、本实用新型通过设置的外部框架、竖向伸缩杆、提起板、第一支撑柱、限位板和外部开关,在装置内部的提起板与继电保护器本体之间产生连接关系时,工作人员将装置内部的外部开关启动,使得装置内部的电动伸缩柱进行升降进而对外部框架内部的竖向伸缩杆进行按压,而装置底部的第一支撑柱以及限位板辅助装置内部的竖向伸缩杆在移动之后对竖向伸缩杆产生限位的作用,达到了装置不需要进行人工操作,工作效率提高的目的。2. The utility model creates a connection relationship between the lifting plate inside the device and the relay protector body through the set external frame, vertical telescopic rod, lifting plate, first support column, limit plate and external switch, The staff activates the external switch inside the device, so that the electric telescopic column inside the device lifts and then presses the vertical telescopic rod inside the external frame, while the first support column at the bottom of the device and the vertical position inside the limit plate auxiliary device After the telescopic rod moves, the vertical telescopic rod has a position-limiting effect, so that the device does not need to be manually operated and the purpose of improving work efficiency is achieved.

附图说明Description of drawings

图1为本实用新型立体结构示意图;Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

图2为本实用新型旋转盘结构示意图;Fig. 2 is a structural schematic diagram of the utility model rotating disc;

图3为本实用新型过渡盘结构示意图;Fig. 3 is a structural schematic diagram of the utility model transition plate;

图4为本实用新型旋转盘背面结构示意图。Fig. 4 is a schematic diagram of the back structure of the rotary disk of the present invention.

图中:1、外部框架;2、竖向伸缩杆;3、旋转盘;4、移动槽;5、支撑杆;6、凸起螺纹杆;7、电机本体;8、过渡盘;9、过渡槽;10、过渡杆;11、安装盘;12、横向伸缩杆;13、插接槽;14、提起板;15、连接柱;16、旋转环;17、第一支撑柱;18、限位板;19、第二支撑柱;20、安装板;21、电动伸缩柱;22、外部开关。In the figure: 1. External frame; 2. Vertical telescopic rod; 3. Rotary disc; 4. Moving slot; 5. Support rod; 6. Raised threaded rod; 7. Motor body; 8. Transition plate; 9. Transition Groove; 10, transition rod; 11, mounting plate; 12, horizontal telescopic rod; 13, socket slot; 14, lifting plate; 15, connecting column; 16, rotating ring; 17, first support column; 19, the second support column; 20, the mounting plate; 21, the electric telescopic column; 22, the external switch.

具体实施方式Detailed ways

下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

请参阅图1至图2,本实用新型提供一种技术方案:一种继电保护端子提起器,Please refer to Figure 1 to Figure 2, the utility model provides a technical solution: a relay protection terminal lifter,

包括外部框架1,外部框架1的内部插接有竖向伸缩杆2,竖向伸缩杆2的表面活动连接有旋转盘3,旋转盘3的表面开设有移动槽4,移动槽4的内部活动连接有支撑杆5,支撑杆5端部的一侧螺纹连接有凸起螺纹杆6,凸起螺纹杆6的端部安装有电机本体7。Including the external frame 1, the interior of the external frame 1 is plugged with a vertical telescopic rod 2, the surface of the vertical telescopic rod 2 is movably connected with a rotating disk 3, and the surface of the rotating disk 3 is provided with a moving groove 4, and the internal movement of the moving groove 4 A support rod 5 is connected, and one side of the end of the support rod 5 is threaded with a raised threaded rod 6 , and a motor body 7 is mounted on the end of the raised threaded rod 6 .

进一步的,工作人员将装置进行使用时,首先将装置内部的电机本体7进行启动,之后装置内部的电机本体7带动凸起螺纹杆6进行旋转,使得装置内部的支撑杆5在凸起螺纹杆6的外表面进行平移,支撑杆5进行平移的时候会带动装置内部的设备发生角度的偏转。Further, when the staff uses the device, they first start the motor body 7 inside the device, and then the motor body 7 inside the device drives the protruding threaded rod 6 to rotate, so that the support rod 5 inside the device is on the protruding threaded rod The outer surface of 6 is translated, and when the support rod 5 is translated, it will drive the equipment inside the device to deflect at an angle.

请参阅图1、图3至图4,本实用新型提供一种技术方案:一种继电保护端子提起器,Please refer to Figure 1, Figure 3 to Figure 4, the utility model provides a technical solution: a relay protection terminal lifter,

支撑杆5的外表面连接有过渡盘8,过渡盘8的表面开设有过渡槽9,过渡槽9的内部活动连接有过渡杆10,过渡杆10的表面连接有安装盘11,安装盘11的两侧均固定连接有横向伸缩杆12,外部框架1的内部开设有与横向伸缩杆12相适配的插接槽13,横向伸缩杆12端部的表面固定连接有提起板14。The outer surface of the support rod 5 is connected with a transition plate 8, and the surface of the transition plate 8 is provided with a transition groove 9, and the interior of the transition groove 9 is movably connected with a transition rod 10, and the surface of the transition rod 10 is connected with a mounting plate 11, and the mounting plate 11 Both sides are fixedly connected with horizontal telescopic rods 12 , the inside of the outer frame 1 is provided with an insertion slot 13 compatible with the lateral telescopic rods 12 , and the surface of the ends of the lateral telescopic rods 12 is fixedly connected with a lifting plate 14 .

进一步的,支撑杆5带动过渡盘8发生偏转,使得装置内部的过渡杆10发生偏转,使得竖向伸缩杆2下降相同的距离,但是最后支撑杆5带动安装盘11以及横向伸缩杆12发生左右移动的距离增加,在装置本身通过提起板14对继电保护器进行提起时可以改变装置内部的产生的距离,使得工作人员可以控制提起板14对继电保护器本体的提起距离的更改,避免装置对内部的其它电子元件产生损坏。Further, the support rod 5 drives the transition plate 8 to deflect, causing the transition rod 10 inside the device to deflect, so that the vertical telescopic rod 2 drops the same distance, but finally the support rod 5 drives the mounting plate 11 and the horizontal telescopic rod 12 to move left and right. The distance of movement increases, and when the device itself lifts the relay protector through the lifting plate 14, the generated distance inside the device can be changed, so that the staff can control the change of the lifting distance of the lifting plate 14 to the relay protector body, avoiding The device will cause damage to other electronic components inside.

旋转盘3的背面固定连接有连接柱15,连接柱15的端部固定连接有旋转环16。A connecting post 15 is fixedly connected to the back of the rotating disk 3 , and a rotating ring 16 is fixedly connected to the end of the connecting post 15 .

进一步的,装置内部的连接柱15的作用为辅助旋转盘3与旋转环16之间进行连接,旋转环16与竖向伸缩杆2内部的宣战空间之间配合,使得支撑杆5可以带动凸起螺纹杆6发生偏转,进而进行下一力的延续改变。Further, the connection column 15 inside the device is used to assist the connection between the rotating disk 3 and the rotating ring 16, and the rotating ring 16 cooperates with the war declaration space inside the vertical telescopic rod 2, so that the supporting rod 5 can drive the protrusion The threaded rod 6 is deflected, and then the next continuous change of force is carried out.

外部框架1的底部固定连接有第一支撑柱17,第一支撑柱17的端部固定连接有限位板18,外部框架1的顶部固定连接有第二支撑柱19,第二支撑柱19的顶端固定连接有安装板20,安装板20底部的中部安装有电动伸缩柱21,安装板20的上表面安装有外部开关22。The bottom of the external frame 1 is fixedly connected with a first support column 17, the end of the first support column 17 is fixedly connected with a limiting plate 18, the top of the external frame 1 is fixedly connected with a second support column 19, and the top of the second support column 19 Fixedly connected with a mounting plate 20, the middle part of the bottom of the mounting plate 20 is equipped with an electric telescopic column 21, and the upper surface of the mounting plate 20 is equipped with an external switch 22.

进一步的,在装置内部的提起板14与继电保护器本体之间产生连接关系时,工作人员将装置内部的外部开关22启动,使得装置内部的电动伸缩柱21进行升降进而对外部框架1内部的竖向伸缩杆2进行按压,而装置底部的第一支撑柱17以及限位板18辅助装置内部的竖向伸缩杆2在移动之后对竖向伸缩杆2产生限位的作用。Further, when a connection relationship is generated between the lifting plate 14 inside the device and the relay protector body, the staff activates the external switch 22 inside the device, so that the electric telescopic column 21 inside the device is lifted and then the external frame 1 is opened. The vertical telescopic rod 2 of the device is pressed, and the vertical telescopic rod 2 in the auxiliary device inside the first support column 17 and the limit plate 18 at the bottom of the device will limit the vertical telescopic rod 2 after moving.

工作原理:该一种继电保护端子提起器使用时,工作人员将装置进行使用时,首先将装置内部的电机本体7进行启动,之后装置内部的电机本体7带动凸起螺纹杆6进行旋转,使得装置内部的支撑杆5在凸起螺纹杆6的外表面进行平移,支撑杆5进行平移的时候会带动装置内部的设备发生角度的偏转,支撑杆5带动过渡盘8发生偏转,使得装置内部的过渡杆10发生偏转,使得竖向伸缩杆2下降相同的距离,但是最后支撑杆5带动安装盘11以及横向伸缩杆12发生左右移动的距离增加,在装置本身通过提起板14对继电保护器进行提起时可以改变装置内部的产生的距离,使得工作人员可以控制提起板14对继电保护器本体的提起距离的更改,避免装置对内部的其它电子元件产生损坏,装置内部的连接柱15的作用为辅助旋转盘3与旋转环16之间进行连接,旋转环16与竖向伸缩杆2内部的宣战空间之间配合,使得支撑杆5可以带动凸起螺纹杆6发生偏转,进而进行下一力的延续改变,在装置内部的提起板14与继电保护器本体之间产生连接关系时,工作人员将装置内部的外部开关22启动,使得装置内部的电动伸缩柱21进行升降进而对外部框架1内部的竖向伸缩杆2进行按压,而装置底部的第一支撑柱17以及限位板18辅助装置内部的竖向伸缩杆2在移动之后对竖向伸缩杆2产生限位的作用。Working principle: When using this kind of relay protection terminal lifter, when the staff uses the device, first start the motor body 7 inside the device, and then the motor body 7 inside the device drives the raised threaded rod 6 to rotate, The support rod 5 inside the device is translated on the outer surface of the raised threaded rod 6. When the support rod 5 is translated, it will drive the equipment inside the device to deflect at an angle, and the support rod 5 will drive the transition plate 8 to deflect, making the inside of the device The transition rod 10 deflects, so that the vertical telescopic rod 2 drops the same distance, but finally the support rod 5 drives the mounting plate 11 and the horizontal telescopic rod 12 to move left and right. When the device is lifted, the generated distance inside the device can be changed, so that the staff can control the change of the lifting distance of the relay protector body by the lifting plate 14, so as to avoid damage to other electronic components inside the device. The connecting column 15 inside the device The function is to assist the connection between the rotating disk 3 and the rotating ring 16, and the cooperation between the rotating ring 16 and the declaration space inside the vertical telescopic rod 2, so that the supporting rod 5 can drive the protruding threaded rod 6 to deflect, and then proceed to the next step. A continuous change of force, when the connection relationship between the lifting plate 14 inside the device and the relay protector body is generated, the staff will start the external switch 22 inside the device, so that the electric telescopic column 21 inside the device will be raised and lowered to the outside. The vertical telescopic rod 2 inside the frame 1 is pressed, and the first support column 17 at the bottom of the device and the limiting plate 18 assist the vertical telescopic rod 2 inside the device to limit the vertical telescopic rod 2 after moving.

本实施例中使用的标准零件可以从市场上直接购买,而根据说明书和附图的记载的非标准结构部件,也可以直根据现有的技术常识毫无疑义的加工得到,同时各个零部件的连接方式采用现有技术中成熟的常规手段,而机械、零件及设备均采用现有技术中常规的型号,故在此不再作出具体叙述。The standard parts used in this embodiment can be directly purchased from the market, and the non-standard structural parts according to the instructions and drawings can also be processed without any doubt based on existing technical common sense. The connection method adopts mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description is made here.

尽管已经示出和描述了本实用新型的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本实用新型的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. Relay protection terminal lifts ware, including external frame (1), its characterized in that: a vertical telescopic rod (2) is inserted into the outer frame (1);
the movable type telescopic support is characterized in that the surface of the vertical telescopic rod (2) is movably connected with a rotary disc (3), a movable groove (4) is formed in the surface of the rotary disc (3), a support rod (5) is movably connected in the movable groove (4), a protruding threaded rod (6) is connected to one side of the end portion of the support rod (5) in a threaded mode, and a motor body (7) is mounted at the end portion of the protruding threaded rod (6).
2. The relay protection terminal lifter according to claim 1, wherein: the outer surface of bracing piece (5) is connected with transition dish (8), transition groove (9) have been seted up on the surface of transition dish (8), the inside swing joint of transition groove (9) has transition pole (10).
3. The relay protection terminal lifter according to claim 2, wherein: the surface of the transition rod (10) is connected with a mounting plate (11), and two sides of the mounting plate (11) are fixedly connected with transverse telescopic rods (12).
4. The relay protection terminal lifter according to claim 1, wherein: the inside of the outer frame (1) is provided with a splicing groove (13) matched with the transverse telescopic rod (12), and the surface of the end part of the transverse telescopic rod (12) is fixedly connected with a lifting plate (14).
5. The relay protection terminal lifter according to claim 1, wherein: the back of rotary disk (3) fixedly connected with spliced pole (15), the tip fixedly connected with rotatory ring (16) of spliced pole (15).
6. The relay protection terminal lifter according to claim 1, wherein: the bottom of the outer frame (1) is fixedly connected with a first support column (17), and the end part of the first support column (17) is fixedly connected with a limiting plate (18).
7. The relay protection terminal lifter according to claim 1, wherein: the top fixedly connected with second support column (19) of external frame (1), the top fixedly connected with mounting panel (20) of second support column (19), the mid-mounting of mounting panel (20) bottom has electric telescopic column (21), the upper surface of mounting panel (20) installs external switch (22).
CN202221992183.6U 2022-07-29 2022-07-29 Relay protection terminal lifting device Expired - Fee Related CN218919781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221992183.6U CN218919781U (en) 2022-07-29 2022-07-29 Relay protection terminal lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221992183.6U CN218919781U (en) 2022-07-29 2022-07-29 Relay protection terminal lifting device

Publications (1)

Publication Number Publication Date
CN218919781U true CN218919781U (en) 2023-04-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221992183.6U Expired - Fee Related CN218919781U (en) 2022-07-29 2022-07-29 Relay protection terminal lifting device

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Country Link
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