Protective cover for preventing misoperation of relay protection pressing plate

Abstract

The utility model belongs to the field of relay pressure plate protection, particularly relates to a protective cover for preventing misoperation of a relay protection pressure plate, and aims to solve the problems that although the protective cover can be fixed through a spring, a positioning rod and a sliding plate in the prior art, the protective cover needs to be detached when a relay is maintained. In order to solve the problems that fixing of a protective cover can be relieved only by pulling two sliding plates in sequence, the operation is troublesome, and the disassembly efficiency is low, the following scheme is provided, the relay comprises a relay body, a base used for installing the relay body and a protective cover body used for protecting the relay body, the relay body is fixedly arranged on the base, and the protective cover body is fixedly arranged on the base. The protective cover main body is arranged on the base, a moving groove is formed in the protective cover main body, the protective cover main body can be installed and fixed through the first fixing mechanism, the protective cover main body can be conveniently disassembled, the disassembling and installing efficiency is improved, and two sliding plates do not need to be pulled in sequence; the second fixing mechanism can conduct magnet fixing on the sliding plate.

Description

Technical Field

[0001] The utility model relates to the technical field of relay pressure plate protection, in particular to a protective cover for preventing relay protection pressure plates from malfunctioning. Background Art

[0002] Relay protection is an important measure to detect faults or abnormal conditions in the power system, thereby issuing an alarm signal, or directly isolating and removing the faulty part. Relay protection needs to be used in conjunction with a protection pressure plate. The protection pressure plate is also called a protection link or a trip pressure plate. It is the bridge and link between the protection device and the external wiring. It is related to whether the protection function and action outlet can function normally. Therefore, a protective cover needs to be installed to prevent people from accidentally touching the pressure plate.

[0003] After searching, the patent with announcement number CN219394405U discloses a protective cover to prevent relay protection plate from malfunctioning. The assembly device includes two grooves, and the inside of the two grooves are slidably connected with a sliding seat. The surface of the sliding seat away from the groove is fixedly installed with a vertical rod, and the surface of the vertical rod is slidably connected with a slide plate. A spring is fixedly installed between the circular plate and the slide plate, and a positioning rod is fixedly installed on the surface of the slide plate away from the spring. The two side surfaces of the protective cover body are fixedly installed with mounting plates, and the surface of the mounting plate is provided with a through hole, and the surface of the base is provided with two positioning holes. The utility model solves the problem that the existing protective cover to prevent relay protection plate from malfunctioning and colliding with the protective cover body relies on the cooperation between the bolts and the fixing holes to realize the fixing of the protective cover body on the surface of the relay body, which leads to the problem that the bolts will be stripped after repeated disassembly and installation when the protective cover body is removed to perform comprehensive maintenance on the relay body in the future.

[0004] The technical solution has the following problems:

[0005] Although the protective cover can be fixed by a spring, a positioning rod and a slide plate, when the protective cover needs to be removed for maintenance of the relay, the two slide plates need to be pulled in sequence to release the fixation of the protective cover, which is troublesome and has low removal efficiency. Utility Model Content

[0006] The purpose of the utility model is to solve the problem in the prior art that although the protective cover can be fixed by a spring, a positioning rod and a slide plate, when the protective cover needs to be disassembled for relay maintenance, it is necessary to pull two slide plates in sequence to release the fixation of the protective cover, which is more troublesome and has low disassembly efficiency. A protective cover is proposed to prevent false operation of the relay protection pressure plate.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A protective cover for preventing relay protection plate from malfunctioning, comprising a relay body, a base for installing the relay body and a protective cover body for protecting the relay body, wherein the relay body is fixedly arranged on the base, the protective cover body is arranged on the base, a moving groove is opened on the protective cover body, and a sliding plate is slidably connected in the moving groove;

[0009] A first fixing mechanism, the first fixing mechanism is arranged on the base and is used to fix the protective cover body;

[0010] The second fixing mechanism is arranged on the protective cover body and is used for fixing the sliding plate.

[0011] In a possible design, the first fixing mechanism includes a first limit shell, a second limit shell, a short plate, a spring, a pull pin and a connecting plate, the bottom of the first limit shell is fixedly connected to the top of the base, the bottom of the second limit shell is slidably connected to the top of the base, the bottom of the short plate is fixedly connected to one side of the top of the base, a circular hole is opened on the short plate, the outer side of the pull pin is slidably connected to the inner wall of the circular hole, the pull pin is T-shaped, one side of the connecting plate is fixedly connected to one side of the second limit shell, one end of the pull pin is fixedly connected to one side of the connecting plate, the spring is sleeved on the pull pin, one end of the spring is fixedly connected to one side of the connecting plate, and the other end of the spring is fixedly connected to one side of the short plate, and the first limit bar and the second limit bar are fixedly provided on both sides of the protective cover body, the first limit bar is inserted in the first limit shell, and the second limit bar is inserted in the second limit shell.

[0012] In a possible design, the second fixing mechanism includes a magnet and an iron sheet for magnetically fixing the sliding plate, one side of the magnet is fixedly connected to an inner wall of one side of the protective cover body, and one side of the iron sheet is fixedly connected to one side of the sliding plate.

[0013] In a possible design, a slide groove is provided on the top of the base to reduce the friction generated when the second limiting shell moves, and a slider is fixedly provided on the bottom of the second limiting shell, and the bottom of the slider is slidably connected to the inner wall of the slide groove.

[0014] In a possible design, a pulling plate is fixedly provided on one side of the top of the sliding plate for facilitating pulling the sliding plate to move.

[0015] In a possible design, a ventilation hole is opened on one side of the protective cover body to facilitate ventilation of the relay body.

[0016] In the present application, during installation, first hold the protective cover body with one hand and pull the pull pin with the other hand. The movement of the pull pin drives the movement of the connecting plate. At this time, the spring is compressed, and also drives the movement of the second limit shell, so that the protective cover body is covered on the relay body, and then the protective cover body is moved slightly to the right to insert the first limit strip into the first limit shell, and then the hand pulling the pull pin is released, and the compressed spring is released, and the connecting plate and the second limit shell are pushed to move by the thrust of the spring, so that the second limit shell is inserted into the second limit strip, so that the protective cover body can be installed and fixed, and then used. When the relay body needs to be used, the pull plate is pulled by hand, and the movement of the pull plate drives the movement of the sliding plate, so that the protective cover body is opened, and the blocking of the sliding plate is lost. The relay body can be conveniently operated accordingly. When the relay body needs to be maintained and the protective cover body needs to be disassembled, the pull pin is pulled with one hand. The movement of the pull pin drives the movement of the connecting plate. At this time, the spring is compressed, and it also drives the movement of the second limit shell, so that the second limit shell leaves the second limit bar. Then, the protective cover body is held in one hand and moved slightly to the left to make the first limit bar leave the first limit shell. The protective cover body can be disassembled, which improves the efficiency of disassembly and installation. There is no need to pull the two slides in turn. The sliding plate is made of transparent acrylic material, which is easy to observe. Through the set magnet and iron sheet, when the sliding plate closes the protective cover body, the magnet and the iron sheet will attract each other to fix the sliding plate with the magnet.

[0017] The beneficial effects of the present invention are:

[0018] In the utility model, the protective cover for preventing the relay protection pressure plate from malfunctioning is provided with a first fixing mechanism, wherein one hand holds the protective cover body and the other hand pulls the pull pin, and the movement of the pull pin drives the movement of the connecting plate, at which time the spring is compressed and also drives the movement of the second limit shell, so that the protective cover body is covered on the relay body, and then the protective cover body is slightly moved to the right, so that the first limit strip is inserted into the first limit shell, and then the hand pulling the pull pin is released, and the compressed spring is released, and the connecting plate and the second limit shell are pushed to move by the thrust of the spring, so that the second limit shell is inserted into the second limit strip, so that the protective cover body can be installed and fixed, and the protective cover body is easy to disassemble, thereby improving the efficiency of disassembly and installation, and there is no need to pull the two slide plates in sequence;

[0019] In the utility model, the relay protection plate malfunction prevention protective cover, through the second fixing mechanism, through the provided magnet and iron sheet, when the sliding plate closes the protective cover body, the magnet and the iron sheet will attract each other, and the sliding plate will be fixed by magnet;

[0020] In the utility model, the protective cover body can be installed and fixed by the first fixing mechanism, and the protective cover body can be easily disassembled, thereby improving the efficiency of disassembly and installation. There is no need to pull the two slide plates in sequence, and the second fixing mechanism can fix the sliding plate with magnets. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of a protective cover for preventing relay protection pressure plate from malfunctioning proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the sliding plate of the protective cover for preventing the relay protection pressure plate from malfunctioning, which is proposed by the utility model, in the open state;

[0023] Figure 3 A schematic diagram of the partial structure of a protective cover for preventing relay protection pressure plate from malfunctioning proposed by the utility model;

[0024] Figure 4 The utility model discloses a side view structural diagram of a protective cover body of a protective cover for preventing malfunction of a relay protection pressure plate.

[0025] In the figure: 1. base; 2. protective cover body; 3. first limit shell; 4. sliding plate; 5. second limit shell; 6. short plate; 7. pull pin; 8. connecting plate; 9. spring; 10. magnet; 11. ventilation hole; 12. relay body; 13. first limit strip; 14. moving slot; 15. second limit strip. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Embodiment 1

[0028] Reference Figure 1-4 A protective cover for preventing a relay protection pressure plate from malfunctioning is used in the field of relay pressure plate protection, comprising: a base 1, a protective cover body 2 and a relay body 12, wherein the relay body 12 is fixedly arranged on the base 1, and the protective cover body 2 is installed on the base 1, providing all-round protection for the relay body 12.

[0029] A movable groove 14 is specially designed on the protective cover body 2, and a sliding plate 4 is slidably connected in the movable groove 14. The design of the sliding plate 4 enables the user to conveniently expose or cover certain parts of the relay body 12 through sliding operation for easy operation.

[0030] The first fixing mechanism is used to fix the protective cover body 2 to prevent it from accidentally moving or falling off. The mechanism includes a first limiting shell 3, a second limiting shell 5, a short plate 6, a spring 9, a pull pin 7 and a connecting plate 8.

[0031] The first limiting shell 3 and the second limiting shell 5 are respectively fixed on both sides of the top of the base 1, and the first limiting strip 13 and the second limiting strip 15 are respectively arranged on both sides of the protective cover body 2, which are respectively inserted into the first limiting shell 3 and the second limiting shell 5, so as to realize the preliminary fixation of the protective cover body 2.

[0032] The short plate 6 is fixed to one side of the top of the base 1, and a circular hole is opened on it. The pull pin 7 is T-shaped, and its outer side is slidably connected to the inner wall of the circular hole. One end of the pull pin 7 is fixedly connected to one side of the connecting plate 8, and the other side of the connecting plate 8 is fixedly connected to one side of the second limiting shell 5. The spring 9 is sleeved on the pull pin 7, and one end of the spring is fixedly connected to one side of the connecting plate 8, and the other end is fixedly connected to one side of the short plate 6. When it is necessary to fix the protective cover body 2, the user can pull the pull pin 7 to make the second limiting shell 5 approach the first limiting shell 3, and then the first limiting strip 13 and the second limiting strip 15 are firmly clamped in the first limiting shell 3 and the second limiting shell 5 respectively. At this time, the spring 9 is in a compressed state, exerting a force on the second limiting shell 5 to approach the first limiting shell 3, thereby ensuring the firmness of the fixation.

[0033] The second fixing mechanism is used to fix the sliding plate 4 to prevent it from accidentally sliding. The mechanism includes a magnet 10 and an iron sheet. One side of the magnet 10 is fixedly connected to an inner wall of one side of the protective cover body 2, and one side of the iron sheet is fixedly connected to one side of the sliding plate 4. The user can fix the sliding plate 4 in the movable groove 14 through the suction force of the magnet 10 and the iron sheet to ensure that it will not slide on its own when not affected by external force.

[0034] Embodiment 2

[0035] refer to Figure 1-4 , improved on the basis of the first embodiment:

[0036] In order to reduce the friction force generated when the second limiting shell 5 moves, a slide groove is opened on the top of the base 1, and a slider is fixedly provided on the bottom of the second limiting shell 5, and the bottom of the slider is slidably connected to the inner wall of the slide groove.

[0037] In order to facilitate the user to pull the sliding plate 4 to move, a pulling plate is fixedly provided on one side of the top of the sliding plate 4 .

[0038] In order to facilitate ventilation and heat dissipation of the relay body 12 , a ventilation hole 11 is opened on one side of the protective cover body 2 .

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A protective cover for preventing relay protection plate malfunction, comprising a relay body (12), a base (1) for mounting the relay body (12), and a protective cover body (2) for protecting the relay body (12), characterized in that: The relay body (12) is fixedly arranged on the base (1), the protective cover body (2) is arranged on the base (1), a movable groove (14) is provided on the protective cover body (2), and a sliding plate (4) is slidably connected in the movable groove (14); A first fixing mechanism, the first fixing mechanism being arranged on the base (1) and used for fixing the protective cover body (2); A second fixing mechanism is arranged on the protective cover body (2) and is used to fix the sliding plate (4).

2. The protective cover for preventing relay protection plate from malfunctioning according to claim 1, characterized in that: The first fixing mechanism comprises a first limiting shell (3), a second limiting shell (5), a short plate (6), a spring (9), a pull pin (7) and a connecting plate (8); the bottom of the first limiting shell (3) is fixedly connected to the top of the base (1); the bottom of the second limiting shell (5) is slidably connected to the top of the base (1); the bottom of the short plate (6) is fixedly connected to one side of the top of the base (1); a circular hole is opened on the short plate (6); the outer side of the pull pin (7) is slidably connected to the inner wall of the circular hole; the pull pin (7) is T-shaped; one side of the connecting plate (8) is connected to the second limiting shell (3); One side of the limit shell (5) is fixedly connected, one end of the pull pin (7) is fixedly connected to one side of the connecting plate (8), the spring (9) is sleeved on the pull pin (7), one end of the spring (9) is fixedly connected to one side of the connecting plate (8), and the other end of the spring (9) is fixedly connected to one side of the short plate (6), and the first limit strip (13) and the second limit strip (15) are fixedly arranged on both sides of the protective cover body (2), respectively, the first limit strip (13) is inserted in the first limit shell (3), and the second limit strip (15) is inserted in the second limit shell (5).

3. The protective cover for preventing relay protection plate from malfunctioning according to claim 1, characterized in that: The second fixing mechanism comprises a magnet (10) and an iron sheet for magnetically fixing the sliding plate (4), one side of the magnet (10) being fixedly connected to an inner wall of one side of the protective cover body (2), and one side of the iron sheet being fixedly connected to one side of the sliding plate (4).

4. A protective cover for preventing relay protection pressure plate from malfunctioning according to claim 2, characterized in that: The top of the base (1) is provided with a slide groove for reducing the friction generated when the second limiting shell (5) moves, and the bottom of the second limiting shell (5) is fixedly provided with a slider, and the bottom of the slider is slidably connected to the inner wall of the slide groove.

5. The protective cover for preventing relay protection pressure plate from malfunctioning according to claim 1, characterized in that: A pulling plate is fixedly provided on one side of the top of the sliding plate (4) for facilitating pulling the sliding plate (4) to move.

6. The protective cover for preventing relay protection plate from malfunctioning according to claim 1, characterized in that: A ventilation hole (11) is provided on one side of the protective cover body (2) for ventilating the relay body (12).

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