Protection device for preventing misoperation of relay protection pressing plate

Abstract

The utility model relates to the technical field of relay protection, in particular to a protection device for preventing misoperation of a relay protection pressing plate. The device comprises a protection cover used for accommodating relay protection voltage, a fixing shaft is arranged at the protection cover, and an overturning plate is rotatably arranged at the fixing shaft; a positioning groove is formed in the fixing shaft, a communicating groove communicating with the positioning groove is formed in the overturning plate, and a positioning piece is arranged in the communicating groove in a sliding mode and used for being matched with the positioning groove and limiting the overturning plate. The positioning piece slides in the communicating groove, so that the positioning piece can be matched with the positioning groove in the fixing shaft, the overturning plate is limited, and compared with the prior art, the fixing shaft and the overturning plate can be quickly locked through the positioning piece, and therefore the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relay protection, in particular to a protection device for preventing malfunction of a relay protection pressure plate. Background Art

[0002] The relay protection pressure plate is an important component of the relay protection device in the power system. If the staff accidentally touches the relay protection pressure plate during routine maintenance, it may cause damage to the power equipment or instability of the power grid, resulting in serious power system accidents.

[0003] In order to prevent the relay protection pressure plate from malfunctioning, a protective shell is usually set outside the relay protection pressure plate to isolate the protection pressure plate. A flip plate for flipping open is provided on the protective shell. When the staff operates the relay protection pressure plate, the flip plate needs to be limited to avoid affecting the staff's subsequent operations. However, the opening and closing and closing state limits of the flip plate on the existing protective shell are relatively cumbersome, which affects the maintenance efficiency of the relay protection pressure plate. Utility Model Content

[0004] The utility model provides a protection device for preventing malfunction of a relay protection pressure plate, which can overcome the defect of complicated position limiting of the relay protection pressure plate in the prior art.

[0005] According to the utility model, a protection device for preventing the relay protection pressure plate from malfunctioning includes a protection cover for accommodating the relay protection pressure, a fixed shaft is provided at the protection cover, and a flip plate is rotated at the fixed shaft; a positioning groove is provided at the fixed shaft, and a connecting groove connected to the positioning groove is provided at the flip plate, and a positioning piece is provided for sliding in the connecting groove, and the positioning piece is used to cooperate with the positioning groove and form a limit for the flip plate.

[0006] The positioning piece slides in the connecting groove so that the positioning piece can cooperate with the positioning groove on the fixed shaft to limit the flip plate. Compared with the existing technology, the positioning piece can quickly lock the fixed shaft and the flip plate, thereby improving the convenience of using the device.

[0007] Preferably, the protective cover includes a first shell and a second shell that are detachably arranged.

[0008] In the utility model, the first shell and the second shell are detachable, so that the protective cover can be quickly installed on the fixed shaft.

[0009] Preferably, mounting grooves are provided at the first shell and the second shell, mounting portions cooperating with the mounting grooves are formed at both ends of the fixed shaft, and positioning pieces for positioning the mounting portions are provided at the mounting grooves.

[0010] In the utility model, the mounting parts at both ends of the fixed shaft are matched with the mounting grooves, and the fixed shaft is fixed by the positioning piece.

[0011] Preferably, the flip plate includes a first folding plate and a second folding plate that are slidably connected, and the connecting groove includes a sliding groove formed at the opposite positions of the first folding plate and the second folding plate.

[0012] In the utility model, after the first folding plate and the second folding plate are separated, the positioning member can be quickly installed in the sliding groove, which facilitates the assembly and disassembly of the positioning member and the flip plate.

[0013] Preferably, the positioning member includes a sliding block sliding in the sliding groove, and the top of the sliding block has a limiting portion that cooperates with the positioning groove.

[0014] In the present invention, the limiting portion on the sliding block is engaged in the positioning groove, thereby realizing rapid positioning of the flip plate and the fixed shaft.

[0015] Preferably, the positioning groove includes a first groove and a second groove which are provided on the outer wall of the fixed shaft and cooperate with the limiting portion.

[0016] In the present invention, the limiting portion is engaged with the first groove and the second groove for positioning, thereby limiting the opening and closing of the flip plate and improving the convenience of device operation.

[0017] Preferably, a manipulation groove communicating with the outside is provided in the sliding groove located at the first folding plate, a manipulation rod connected to the outer wall of the sliding block is slidably provided in the manipulation groove, and a handle is provided at the end of the manipulation rod.

[0018] In the utility model, when the handle is pulled, the operating rod will drive the sliding block to move in the sliding groove, thereby canceling the limit on the flip plate.

[0019] Preferably, an extrusion hole is provided at the bottom of the sliding groove of the first folding plate and the second folding plate, an extrusion rod sliding with the extrusion hole is formed at the bottom of the sliding block, and a reset spring for pushing the extrusion rod to reset is provided in the extrusion hole.

[0020] In the utility model, the return spring in the extrusion hole pushes the extrusion rod to move toward the fixed axis, thereby realizing automatic position limiting of the flip plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the protective cover in Example 1;

[0022] Figure 2 Schematic diagram of the flip plate in Example 1;

[0023] Figure 3 Schematic diagram of the positioning sheet in Example 1;

[0024] Figure 4 is a schematic diagram of a side cross-section of the fixed axis in Example 1;

[0025] Figure 5 This is a schematic diagram of the explosion of the flip plate in Example 1. DETAILED DESCRIPTION

[0026] In order to further understand the content of the present invention, the present invention is described in detail with reference to the embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0027] Example 1

[0028] like Figure 1-4 As shown, this embodiment provides a protection device for preventing the relay protection pressure plate from malfunctioning, which includes a protective cover 110 for accommodating the relay protection pressure, a fixed shaft 210 is provided at the protective cover 110, and a flip plate 130 is rotated at the fixed shaft 210; a positioning groove 410 is provided at the fixed shaft 210, and a connecting groove 420 connected to the positioning groove 410 is provided at the flip plate 130, and a positioning member 430 is slidingly provided in the connecting groove 420, and the positioning member 430 is used to cooperate with the positioning groove 410 and form a limit for the flip plate 130.

[0029] The present invention discloses a protection device for preventing the relay protection pressure plate from malfunctioning. In this device, the positioning member 430 slides in the connecting groove 420 so that the positioning member 430 can cooperate with the positioning groove 410 on the fixed shaft 210, thereby limiting the flip plate 130. Compared with the prior art, the positioning member 430 can quickly lock the fixed shaft 210 and the flip plate 130, thereby improving the convenience of using the device.

[0030] Combine Figure 1-2 As shown, in this embodiment, the protective cover 110 includes a first shell 111 and a second shell 112 that can be detachably arranged; a mounting groove 220 is provided at the first shell 111 and the second shell 112, and mounting portions 211 that cooperate with the mounting groove 220 are formed at both ends of the fixed shaft 210, and a positioning piece 230 for positioning the mounting portion 211 is provided at the mounting groove 220.

[0031] Through the above structure, the first shell 111 and the second shell 112 are detachable, so that the protective cover 110 can be quickly installed on the fixed shaft 210. At the same time, the mounting parts 211 at both ends of the fixed shaft 210 are matched with the mounting grooves 220, and then the fixed shaft 210 is fixed by the positioning piece 230.

[0032] Combine Figure 2-5As shown, in this embodiment, the flip plate 130 includes a first folding plate 240 and a second folding plate 250 that can be slidably spliced, and the connecting groove 420 includes a sliding groove 510 formed at the opposite positions of the first folding plate 240 and the second folding plate 250; the positioning member 430 includes a sliding block 520 sliding in the sliding groove 510, and the top of the sliding block 520 has a limiting portion 530 that cooperates with the positioning groove 410; the positioning groove 410 includes a first groove 411 and a second groove 412 provided on the outer wall of the fixed shaft 210 and cooperating with the limiting portion 530.

[0033] Through the above structure, when installing the positioning member 430, after separating the first folding plate 240 and the second folding plate 250, the positioning member 430 can be quickly installed in the sliding groove 510, which facilitates the assembly and disassembly of the positioning member 430 and the flip plate 130; push the sliding block 520 in the direction of the positioning groove 410, and the limiting portion 530 on the sliding block 520 will be engaged in the positioning groove 410, thereby realizing rapid positioning of the flip plate 130 and the fixed shaft 210; at the same time, when the flip plate 130 is flipped to the open and closed states, the limiting portion 530 will be engaged and positioned with the first groove 411 and the second groove 412 respectively, thereby realizing limiting the opening and closing of the flip plate 130, thereby improving the convenience of device operation.

[0034] Combine Figure 2-5 As shown, in this embodiment, an operating groove 540 connected to the outside is opened in the sliding groove 510 located at the first folding plate 240, and an operating rod 550 connected to the outer wall of the sliding block 520 is slidingly provided in the operating groove 540, and a handle 560 is provided at the end of the operating rod 550; an extrusion hole 570 is provided at the bottom of the sliding groove 510 at the first folding plate 240 and the second folding plate 250, and an extrusion rod 580 sliding with the extrusion hole 570 is formed at the bottom of the sliding block 520, and a return spring 590 for pushing the extrusion rod 580 to return to its original position is provided in the extrusion hole 570.

[0035] Through the above structure, when the staff needs to change the limit state of the flip plate 130, they pull the handle 560, and the operating rod 550 will drive the sliding block 520 to move in the sliding groove 510, thereby canceling the limit on the flip plate 130; at the same time, when the flip plate 130 flips to the set position, release the handle 560, and the return spring 590 in the extrusion hole 570 will push the extrusion rod 580 to move toward the fixed axis 210, thereby realizing automatic limit of the flip plate 130.

[0036] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0037] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The embodiments shown are only part of the embodiments of the present invention, and the actual structure is not limited to them. Therefore, if a person skilled in the art is inspired by the above and designs a structure and embodiment similar to the technical solution without creatively designing it without departing from the inventive purpose of the present invention, it shall fall within the scope of protection of the present invention.

Claims

1. A protection device for preventing relay protection pressure plate from malfunctioning, characterized in that: It comprises a protective cover (110) for accommodating a relay protection voltage, a fixed shaft (210) being provided at the protective cover (110), and a flip plate (130) being rotatable at the fixed shaft (210); A positioning groove (410) is provided at the fixed shaft (210), a connecting groove (420) communicating with the positioning groove (410) is provided at the flip plate (130), a positioning member (430) is slidably provided in the connecting groove (420), and the positioning member (430) is used to cooperate with the positioning groove (410) and form a limit for the flip plate (130).

2. The device for preventing malfunction of a relay protection pressure plate according to claim 1, characterized in that: The protective cover (110) comprises a first shell (111) and a second shell (112) which are detachably arranged.

3. A relay protection pressure plate malfunction protection device according to claim 1 or 2, characterized in that: The first housing (111) and the second housing (112) are provided with mounting grooves (220), and mounting portions (211) that cooperate with the mounting grooves (220) are formed at both ends of the fixed shaft (210). Positioning pieces (230) for positioning the mounting portions (211) are provided at the mounting grooves (220).

4. The device for preventing relay protection pressure plate from malfunctioning according to claim 1, characterized in that: The flip plate (130) includes a first folding plate (240) and a second folding plate (250) that are slidably connected, and the connecting groove (420) includes a sliding groove (510) formed at opposite positions of the first folding plate (240) and the second folding plate (250).

5. The device for preventing relay protection pressure plate from malfunctioning according to claim 4, characterized in that: The positioning member (430) includes a sliding block (520) that slides in the sliding groove (510), and a limiting portion (530) that cooperates with the positioning groove (410) is provided on the top of the sliding block (520).

6. The device for preventing relay protection pressure plate from malfunctioning according to claim 1, characterized in that: The positioning groove (410) comprises a first groove (411) and a second groove (412) provided on the outer wall of the fixed shaft (210) and cooperating with the limiting portion (530).

7. The device for preventing relay protection pressure plate from malfunctioning according to claim 4, characterized in that: A manipulation groove (540) communicating with the outside is provided in the sliding groove (510) located at the first folding plate (240). A manipulation rod (550) connected to the outer wall of the sliding block (520) is slidably provided in the manipulation groove (540). A handle (560) is provided at the end of the manipulation rod (550).

8. The device for preventing relay protection pressure plate from malfunctioning according to claim 5, characterized in that: An extrusion hole (570) is provided at the bottom of the sliding groove (510) at the first folding plate (240) and the second folding plate (250), an extrusion rod (580) is formed at the bottom of the sliding block (520) and slides with the extrusion hole (570), and a return spring (590) is provided in the extrusion hole (570) for pushing the extrusion rod (580) to return to its original position.

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