Protection device for preventing maloperation of protection pressing plate and operation method of protection pressing plate

Abstract

The invention relates to the technical field of relay protection, in particular to a protection device for preventing maloperation of a protection pressing plate and an operation method of the protection pressing plate. Comprising a protection assembly, and the protection assembly comprises at least one protection cover and a positioning seat arranged outside the protection cover. The positioning seat comprises a first positioning seat and a second positioning seat which are symmetrically arranged outside the protective cover, a positioning piece used for positioning the positions of the protective cover and the positioning seats, and a guide piece arranged between the first positioning seat and the second positioning seat. The protection device has the beneficial effects that when an operator needs to operate the protection pressing plate, the operator only needs to unlock and move the protection cover to an operation position along the sliding rail; after the operation is completed, the protection cover slides back to the original position and is locked to prevent misoperation, by means of a physical isolation mode, the protection pressing plate is effectively prevented from being mistakenly put and withdrawn due to unauthorized personnel or negligence, and the operation safety of a power system is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of relay protection, in particular to a protection device for preventing a protection pressure plate from malfunctioning and a protection pressure plate operating method. Background Art

[0002] "Power production, safety first", the safe operation of the relay protection system is the most important safety guarantee for the power system, and the safe operation of related equipment in the relay protection system is particularly important. Due to the particularity of equipment such as relay protection devices, the pressure plate that must be designed on the tripping circuit is an important means of ensuring the safe operation of the relay protection system. The pressure plate is a visible disconnection point, which is convenient for operation and maintenance personnel to judge whether the tripping circuit of the relay protection device can be connected to the tripping coil of the switch (circuit breaker), which provides great convenience for operation and maintenance, but also adds a disconnection point that cannot be completely closed in the relay protection system. Due to the particularity of the relay protection tripping pressure plate, both sides cannot be energized at the same time under normal conditions (no tripping command). However, the throwing and retreating of the pressure plate is manually operated, which depends entirely on the responsibility and actual technical level of the operator. Therefore, in the actual operation and maintenance process, due to the operator's misoperation, the pressure plate is improperly thrown and retreated, resulting in the phenomenon that the protection system cannot behave correctly. It often occurs, seriously affecting the stable operation and safety of the power system. Therefore, it is of great practical significance to design a device that can effectively prevent the protection pressure plate from being accidentally retracted. Summary of the invention

[0003] In view of the above existing technical problems, the present invention is proposed.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a protection device for preventing a protection pressure plate from misoperation, comprising a protection assembly, the protection assembly comprising at least one protection cover and a positioning seat arranged outside the protection cover, wherein the positioning seat comprises a first positioning seat and a second positioning seat symmetrically arranged outside the protection cover, a positioning member for locating the position of the protection cover and the positioning seat, and a guide member arranged between the first positioning seat and the second positioning seat.

[0005] As a preferred solution of the protection device for preventing the protection pressure plate from malfunctioning according to the present invention, the protection cover is slidably connected to the positioning member, and a mounting plate is provided at the bottom of the protection cover.

[0006] As a preferred solution of the protection device for preventing the protection pressure plate from malfunctioning according to the present invention, a connecting plate is provided between the first positioning seat and the second positioning seat, and the connecting plate is located below the mounting plate.

[0007] As a preferred solution of the protection device for preventing the protection pressure plate from malfunctioning according to the present invention, the positioning member comprises a positioning column, and the positioning column positions the mounting plate and the connecting plate.

[0008] As a preferred solution of the protection device for preventing the protection pressure plate from malfunctioning of the present invention, the guide member includes an upper guide rail and a lower guide rail, and the protective cover is slidably connected to the upper guide rail and the lower guide rail.

[0009] As a preferred solution of the protection device for preventing the protection pressure plate from malfunctioning according to the present invention, the upper guide rail includes a first upper guide rail and a second upper guide rail, and the lower guide rail includes a first lower guide rail and a second lower guide rail.

[0010] As a preferred solution of the protection device for preventing the protection pressure plate from malfunctioning according to the present invention, the first positioning seat and the second positioning seat are both provided with empty grooves.

[0011] As a preferred solution of the protection device for preventing the protection pressure plate from misoperation of the present invention, an upper bracket is arranged in the empty slot, and lower brackets are also arranged on the outer walls of the first positioning seat and the second positioning seat.

[0012] As a preferred solution of the protection device for preventing the protection pressure plate from malfunctioning according to the present invention, the upper bracket is fixedly connected to the upper guide rail, and the lower bracket is fixedly connected to the lower guide rail.

[0013] The present invention also provides the following technical solution, a method for operating a protective pressure plate, including a protective device for preventing the protective pressure plate from accidentally operating, and unlocking the protective pressure plate, sliding the protective pressure plate along the guide member to an operating position, and after the operation is completed, sliding the protective pressure plate along the guide member to an original position, and repositioning the protective pressure plate by the positioning member.

[0014] The beneficial effects of the protection device for preventing the protection pressure plate from being misoperated and the protection pressure plate operation method of the present invention are as follows: when the operator needs to operate the protection pressure plate, he only needs to unlock it and move the protection cover along the slide rail to the operating position; after the operation is completed, the protection cover is slid back to its original position and locked to prevent misoperation. Through physical isolation, the protection pressure plate can be effectively prevented from being misoperated by unauthorized personnel or due to negligence, thereby significantly improving the operating safety of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is an overall schematic diagram of the protection device for preventing the protection pressure plate from malfunctioning in the present invention.

[0017] Figure 2 It is a top view of the protection device for preventing the protection pressure plate from malfunctioning in the present invention.

[0018] Figure 3 It is a cross-sectional view of the protection device at AA for preventing the protection pressure plate from malfunctioning in the present invention.

[0019] Figure 4 It is a cross-sectional view of the protection device BB for preventing the protection pressure plate from malfunctioning in the present invention. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example 1, reference Figure 1 , which is the first embodiment of the present invention, and this embodiment provides a protection device for preventing a protection pressure plate from malfunctioning, including a protection assembly 100, including at least one protection cover 101, and a positioning seat 102 arranged outside the protection cover 101, wherein the positioning seat 102 includes a first positioning seat 102a and a second positioning seat 102b symmetrically arranged outside the protection cover 101, a positioning member 103 for positioning the positions of the protection cover 101 and the positioning seat 102, and a guide member 104 arranged between the first positioning seat 102a and the second positioning seat 102b.

[0024] Preferably, the protective cover 101 is made of a transparent material, a protective pressure plate is provided inside the protective cover 101, and the specific number of protective covers 101 is selected according to the site.

[0025] Furthermore, the protective cover 101 is slidably connected to the guide member 104 , and the guide member 104 may be provided in multiple groups, so that the protective cover 101 can slide on the guide member 104 more stably.

[0026] Preferably, the first positioning seat 102a and the second positioning seat 102b are symmetrically arranged, and the guide member 104 is fixedly arranged between the first positioning seat 102a and the second positioning seat 102b.

[0027] In summary, in the initial state, the protective cover 101 is fixed by the positioning piece 103 and cannot slide on the guide piece 104. When the protective pressure plate needs to be moved during work, the positioning piece 103 on the protective cover 101 needs to be removed to disengage the positioning piece 103 from the positioning seat 102. At this time, the protective cover 101 can slide on the guide piece 104, that is, unlock the protective cover 101 and move the protective cover 101 along the slide rail to the operating position; after the operation is completed, slide the protective cover 101 back to its original position and lock it to prevent misoperation.

[0028] Example 2, reference Figure 1 to Figure 4 , which is the second embodiment of the present invention, provides a protection device for preventing the protection pressure plate from malfunctioning, including a protection cover 101 slidably connected with a positioning member 103, and a mounting plate 101a is arranged at the bottom of the protection cover 101.

[0029] Preferably, a control handle 101d is provided on the outer wall of the protective cover 101 , and the shape of the control handle 101d is designed according to ergonomics to facilitate pushing the protective cover 101 .

[0030] Furthermore, a first mounting hole 101e is formed on the end surface of the mounting plate 101a.

[0031] A connecting plate 102c is disposed between the first positioning seat 102a and the second positioning seat 102b, and the connecting plate 102c is located below the mounting plate 101a.

[0032] Preferably, the connecting plate 102c is fixedly connected to the first positioning seat 102a and the second positioning seat 102b, and a second mounting hole 102d cooperating with the first mounting hole 101e is formed on the end surface of the connecting plate 102c, and a plurality of second mounting holes 102d are arranged in an array to adapt to different operating positions.

[0033] The positioning member 103 includes a positioning column 103 a , and the positioning column 103 a positions the mounting plate 101 a and the connecting plate 102 c .

[0034] Preferably, the positioning column 103a is movably matched with the first mounting hole 101e and the second mounting hole 102d.

[0035] Furthermore, a release button 103b is provided on the outer wall of the positioning column 103a, and a limit block 103c is provided on the end face of the positioning column 103a away from the connecting plate 102c. By pressing the release button 103b, the positioning column 103a can be disengaged from the first mounting hole 101e and the second mounting hole 102d, that is, the protective cover 101 is unlocked.

[0036] Furthermore, the entire frame of the first positioning seat 102a and the second positioning seat 102b is made of aluminum alloy.

[0037] The guide member 104 includes an upper guide rail 104a and a lower guide rail 104b, and the protective cover 101 is slidably connected to the upper guide rail 104a and the lower guide rail 104b.

[0038] Preferably, a guide rail slider 101f is provided on the end face of the protective cover 101, and a first upper guide rail slot 101g is provided on the guide rail slider 101f near the end face of the upper guide rail 104a, and there are two first upper guide rail slots 101g, which respectively cooperate with the first upper guide rail 104c and the second upper guide rail 104d.

[0039] Furthermore, a mounting seat 101b is provided inside the protective cover 101, a protective pressure plate mounting hole 101c is opened inside the mounting seat 101b, and the protective pressure plate is installed inside the protective cover 101 through the protective pressure plate mounting hole 101c.

[0040] The upper rail 104a includes a first upper rail 104c and a second upper rail 104d, and the lower rail 104b includes a first lower rail 104e and a second lower rail 104f.

[0041] In summary, when the staff is operating, by pressing the release button 103b, the positioning column 103a can unlock the protective cover 101, and the protective cover 101 can be slid along the upper guide rail 104a and the lower guide rail 104b to move the protective cover 101 to the operating position. After the operation is completed, the protective cover 101 is slid back to the original position and locked to prevent misoperation.

[0042] Example 3, reference Figure 1 to Figure 4 , which is the third embodiment of the present invention, provides a protection device for preventing the protection pressure plate from malfunctioning, including a first positioning seat 102a and a second positioning seat 102b both of which are provided with an empty groove 102e.

[0043] An upper bracket 107 is disposed in the empty slot 102e, and a lower bracket 106 is further disposed on the outer walls of the first positioning seat 102a and the second positioning seat 102b.

[0044] Preferably, the upper bracket 107 is fixedly connected inside the empty slot 102e.

[0045] Preferably, a through hole 107a is provided on the upper bracket 107 to cooperate with the upper guide rail 104a, the diameter of the through hole 107a is smaller than the area of ​​the upper bracket 107, and the through hole 107a is disconnected above, dividing the upper part of the upper bracket 107 into a first adjusting block 107b and a second adjusting block 107c, the first adjusting block 107c is provided with a first adjusting groove 107d, the second adjusting block 107c is provided with a second adjusting groove 107e, and the first adjusting groove 107d and the second adjusting groove 107e are provided with adjusting rods 107f, and the adjusting rods 107f are threadedly connected to the first adjusting groove 107d and the second adjusting groove 107, and the first adjusting groove 107d and the second adjusting groove 107 are brought closer or farther apart by adjusting the adjusting rod 107f to adjust the size of the through hole 107a to adapt to different sizes of the upper guide rails 104a.

[0046] Preferably, the lower bracket 106 is fixedly disposed on the outer wall of the first positioning seat 102a and the second positioning seat 102b, facing the side of the protective cover 101, and the lower bracket 106 is provided with a second through hole 106b and a third through hole 106c that cooperate with the first lower guide rail 104e and the second lower guide rail 104f.

[0047] Furthermore, an anti-collision strip 106a is fixedly provided on the end face of one side of the lower bracket 106 close to the protective cover 101. The thickness of the anti-collision strip 106a is higher than that of the lower bracket 106, and the anti-collision strip 106a is made of elastic material. When the protective cover 101 slides close to the first positioning seat 102a and the second positioning seat 102b, it is prevented from colliding with the first positioning seat 102a and the second positioning seat 102b, causing damage to the protective pressure plate.

[0048] The upper bracket 107 is fixedly connected to the upper guide rail 104a, and the lower bracket 106 is fixedly connected to the lower guide rail 104b.

[0049] Example 4, reference Figure 1 to Figure 4 , which is the fourth embodiment of the present invention, and further provides an operation method for preventing the protection pressure plate from malfunctioning, including unlocking the protection pressure plate, sliding the protection pressure plate along the guide member 104 to the operation position, and after the operation is completed, sliding the protection pressure plate along the guide member 104 to the original position, and repositioning the protection pressure plate through the positioning member 103.

[0050] In summary, by pressing the release button 103b, the positioning column 103a can unlock the protective cover 101, and the protective cover 101 can be slid along the upper guide rail 104a and the lower guide rail 104b to move the protective cover 101 to the operating position. After the operation is completed, the protective cover 101 is slid back to its original position and locked to prevent misoperation.

[0051] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0053] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A protection device for preventing a protection pressure plate from malfunctioning, characterized in that: include, A protective assembly (100) comprises at least one protective cover (101), a positioning seat (102) arranged outside the protective cover (101), wherein the positioning seat (102) comprises a first positioning seat (102a) and a second positioning seat (102b) symmetrically arranged outside the protective cover (101), a positioning member (103) for locating the position of the protective cover (101) and the positioning seat (102), and a guide member (104) arranged between the first positioning seat (102a) and the second positioning seat (102b).

2. The protection device for preventing the protection pressure plate from malfunctioning according to claim 1, characterized in that: The protective cover (101) is slidably connected to the positioning member (103), and a mounting plate (101a) is provided at the bottom of the protective cover (101).

3. The protection device for preventing the protection pressure plate from malfunctioning as claimed in claim 2, characterized in that: A connecting plate (102c) is provided between the first positioning seat (102a) and the second positioning seat (102b), and the connecting plate (102c) is located below the mounting plate (101a).

4. The protection device for preventing the protection pressure plate from malfunctioning as claimed in claim 3, characterized in that: The positioning member (103) comprises a positioning column (103a), and the positioning column (103a) is used to position the mounting plate (101a) and the connecting plate (102c).

5. The protection device for preventing the protection pressure plate from malfunctioning as claimed in claim 4, characterized in that: The guide member (104) comprises an upper guide rail (104a) and a lower guide rail (104b), and the protective cover (101) is slidably connected to the upper guide rail (104a) and the lower guide rail (104b).

6. The protection device for preventing the protection pressure plate from malfunctioning as claimed in claim 5, characterized in that: The upper guide rail (104a) includes a first upper guide rail (104c) and a second upper guide rail (104d), and the lower guide rail (104b) includes a first lower guide rail (104e) and a second lower guide rail (104f).

7. The protection device for preventing the protection pressure plate from malfunctioning according to claim 6, characterized in that: The first positioning seat (102a) and the second positioning seat (102b) are both provided with an empty slot (102e).

8. The protection device for preventing the protection pressure plate from malfunctioning according to claim 7, characterized in that: An upper bracket (107) is arranged in the empty groove (102e), and lower brackets (106) are also arranged on the outer walls of the first positioning seat (102a) and the second positioning seat (102b).

9. The protection device for preventing the protection pressure plate from malfunctioning as claimed in claim 8, characterized in that: The upper bracket (107) is fixedly connected to the upper guide rail (104a), and the lower bracket (106) is fixedly connected to the lower guide rail (104b).

10. A method for operating a protective pressure plate, characterized in that: A protective device for preventing the protective pressure plate from malfunctioning according to any one of claims 1 to 9; and Unlock the protective pressure plate, slide the protective pressure plate along the guide member (104) to the operating position, and after the operation is completed, slide the protective pressure plate along the guide member (104) to the original position, and then reposition the protective pressure plate through the positioning member (103).

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