Anti-error terminal

Abstract

The utility model relates to the technical field of wiring terminals, in particular to an anti-misoperation terminal, which comprises an installation back plate, a terminal assembly arranged on the installation back plate, a locking assembly arranged in the installation back plate, and a clamping assembly arranged on the terminal assembly and matched with the locking assembly, the terminal assembly comprises a terminal arranged on the installation backboard, a test jack arranged on the terminal, and an anti-error baffle plate arranged on the terminal and matched with the test jack. According to the utility model, the anti-error baffle plate is arranged on the wiring terminal; according to the utility model, the connection and disconnection states of the wiring terminals and the test wiring loop are mutually limited, the double-end anti-error wiring locking function is realized, the operation risks such as error short circuit can be effectively avoided, the accidents of the current loop can be prevented, and the anti-error baffle plate is further locked through the arrangement of the locking assembly and the clamping assembly, so that the misoperation can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring terminals, in particular to an anti-mistake terminal. Background Art

[0002] At present, wiring terminals are usually used to realize the transfer and connection of secondary circuit cables. Misoperation events caused by the wiring terminals of secondary equipment being disconnected, short-circuited, or adding electrical quantities by mistake frequently occur. Existing conventional current terminals have certain defects. They are simply disconnected without any anti-misoperation measures. "Connection" and "disconnection" are not restricted by whether the circuit is connected or not, and can be switched at will, which is high-risk. All anti-misoperation measures rely on the subjective control of personnel, and there is no technical anti-misoperation. The main work of secondary maintenance personnel is on the terminals, and misoperation basically occurs on the terminals, which seriously affects the reliability of power supply. It is necessary to study new anti-misoperation terminals to solve this hidden danger.

[0003] In the relay protection of power system, 500kV lines generally adopt the "one and a half circuit breaker wiring" method, that is, two line intervals share three circuit breakers (one "circuit breaker" and two "side circuit breakers") as a "string". Due to the characteristics of convenient primary operation and maintenance, flexible dispatching and operation, and high power supply reliability, it is widely used in 500kV and above AC systems, but the current transformer configuration is relatively large, the secondary wiring is complicated, and the metering, measurement, stability, fault recording and related protection often adopt the sum current wiring method, that is, the secondary side of two sets of current transformers are directly connected in parallel according to phases and then connected to the corresponding secondary equipment. The corresponding protection uses the two currents of one of the side circuit breaker side CT and the middle circuit breaker side CT for combined collection, that is, "sum current" calculation.

[0004] When working in the summing current loop, maintenance personnel often neglect to disconnect the inspection branch in the summing current loop first, and directly perform short-circuiting or testing operations, resulting in abnormal summing current of the connected secondary equipment, causing protection misoperation, and seriously threatening the safety of the power grid. This patent is mainly used for line protection, stability, fault recording and other protection equipment in power plants and substations. These devices often use summing current wiring. The "connection" and "disconnection" states of the new terminal we proposed are mutually restricted with the test wiring loop, and have a double-end anti-miswiring locking function, which can effectively avoid the risk of operation such as mis-shorting and reduce the occurrence of accidents in the summing current loop.

[0005] In view of the above problems, we propose an anti-mistake terminal. Utility Model Content

[0006] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0007] In view of the problem that the existing connection terminals in the above or prior art are prone to misoperation, the present utility model is proposed.

[0008] Therefore, the purpose of the utility model is to provide a mis-installation-proof terminal.

[0009] In order to solve the above technical problems, the utility model provides the following technical solutions: comprising a mounting back plate, a terminal assembly arranged on the mounting back plate, a locking assembly arranged in the mounting back plate, and a clamping assembly arranged on the terminal assembly and matching with the locking assembly;

[0010] The terminal assembly comprises a terminal arranged on the mounting back plate, a test socket arranged on the terminal, and an anti-misoperation baffle plate arranged on the terminal and matching with the test socket.

[0011] As a preferred solution of the anti-mistake terminal of the utility model, wherein: a through hole is opened at one end of the anti-mistake baffle, and the through hole matches the test jack.

[0012] As a preferred solution of the anti-misoperation terminal of the utility model, the locking assembly includes a pressing piece arranged in the mounting back plate, an unlocking piece arranged on the pressing piece, and a locking piece arranged on the pressing piece.

[0013] As a preferred solution of the anti-misoperation terminal of the utility model, the pressing piece includes a pressing piece groove opened in the installation back plate, a pressing rod movably inserted in the pressing piece groove, and a pressing spring arranged at the bottom end of the pressing piece groove and one end of which is fixedly connected to the pressing rod.

[0014] As a preferred solution of the anti-misoperation terminal of the utility model, the unlocking member includes an unlocking member groove opened in the mounting back plate and communicated with the pressing member groove, and a conical unlocking ring fixedly sleeved on one end of the pressing rod and located in the unlocking member groove.

[0015] As a preferred solution of the anti-misinstallation terminal of the utility model, the locking member includes a locking member groove opened in the installation back plate and communicated with the pressing member groove, and a wedge-shaped locking groove opened on the side of one end of the pressing rod.

[0016] As a preferred solution of the anti-misoperation terminal of the utility model, the clamping assembly includes a clamping member arranged in the anti-misoperation baffle, and a reset member arranged on the clamping member.

[0017] As a preferred solution of the anti-mistake terminal of the utility model, the clamping part includes a clamping part groove opened in the anti-mistake baffle, a clamping rod movably inserted in the clamping part groove, and a wedge-shaped clamping block fixedly arranged at one end of the clamping rod and extending into the wedge-shaped locking groove.

[0018] As a preferred solution of the anti-misoperation terminal of the utility model, the reset member includes a reset member groove opened in the anti-misoperation baffle and communicated with the clamping member groove, and a reset spring movably sleeved on the clamping rod and located in the reset member groove.

[0019] As a preferred solution of the anti-mistake terminal of the utility model, one end of the reset spring is fixedly connected to the wedge-shaped clamping block, and the other end is fixedly connected to the inner wall of the reset member groove.

[0020] The beneficial effects of the anti-misoperation terminal of the utility model: the utility model sets an anti-misoperation baffle on the wiring terminal, so that the "connection" and "disconnection" states of the wiring terminal and the test wiring circuit are mutually restricted, and has a double-end anti-misoperation locking function, which can effectively avoid operational risks such as accidental short circuit and prevent accidents with the current circuit. By setting a locking component and a clamping component, the anti-misoperation baffle is further locked to prevent misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is the overall schematic diagram to prevent mis-connection of terminals.

[0023] Figure 2 A partial cross-sectional diagram to prevent mis-connection of terminals.

[0024] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0025] Figure 4 A partial schematic diagram to prevent mis-connection of terminals.

[0026] Figure 5 for Figure 4 Enlarged schematic diagram of point B in the middle.

[0027] Figure 6 This is a schematic diagram of the connection status to prevent incorrect terminal connection.

[0028] Figure 7 This is a schematic diagram of the disconnection status to prevent accidental terminal disconnection. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, 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.

[0030] 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.

[0031] 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.

[0032] Example 1

[0033] Reference Figures 1-2 , is the first embodiment of the utility model, which provides an anti-misconnection terminal that can achieve a locking effect for preventing misconnection of both ends of the wiring terminal, including an installation backplane 100, a terminal assembly 200 arranged on the installation backplane 100, a locking assembly 300 arranged in the installation backplane 100, and a clamping assembly 400 arranged on the terminal assembly 200 and matching with the locking assembly 300; the terminal assembly 200 includes a terminal 201 arranged on the installation backplane 100, a test socket 202 arranged on the terminal 201, and an anti-misconnection baffle 203 arranged on the terminal 201 and matching with the test socket 202, a through hole 203a is opened at one end of the anti-misconnection baffle 203, and the through hole 203a matches with the test socket 202.

[0034] In this embodiment, the mounting backplate 100 serves as a mounting carrier for the entire terminal, the terminal assembly 200 is arranged on the mounting backplate 100, and the locking assembly 300 has two groups C1 and C2. The locking assembly 300 is arranged in the mounting backplate 100 and matches with the snap-in assembly 400 arranged in the terminal assembly 200, and is used to cooperate with the snap-in assembly 400 to achieve locking of the anti-mistake baffle 203. The test socket 202 has two S1 and S2 for circuit connection during testing. The anti-mistake baffle 203 is arranged on the terminal 201, and a through hole 203a is opened at one end thereof, and the through hole 203a matches the test socket 202.

[0035] During use, when the terminal 201 is in a connected state, the anti-error baffle 203 is in an initial position. At this time, the anti-error baffle 203 blocks S1 and S2, making the test socket 202 unable to be connected to prevent misoperation. When the terminal 201 needs to be disconnected, the locking assembly 300 is pressed, that is, C1 is pressed to allow the anti-error baffle 203 to move, and the anti-error baffle 203 is moved to the other end so that the through hole 203a coincides with S2. At this time, the terminal 201 is in a disconnected state, and the test socket 202 can be plugged in, thereby achieving the anti-misoperation effect of the terminal 201.

[0036] Example 2

[0037] Reference Figures 1 to 5 , which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a locking assembly for preventing mis-installation of the terminal, including a locking assembly 300, which includes a pressing member 301 arranged in the mounting back plate 100, an unlocking member 302 arranged on the pressing member 301, and a locking member 303 arranged on the pressing member 301, the pressing member 301 includes a pressing member slot 301a opened in the mounting back plate 100, a pressing rod 301b movably plugged into the pressing member slot 301a, and a locking member 303 arranged on the pressing member slot 301a. The bottom end and one end of a pressing spring 301c are fixedly connected to the pressing rod 301b, the unlocking member 302 includes an unlocking member groove 302a which is opened in the mounting back plate 100 and communicates with the pressing member groove 301a, and a conical unlocking ring 302b which is fixedly sleeved on one end of the pressing rod 301b and located in the unlocking member groove 302a, the locking member 303 includes a locking member groove 303a which is opened in the mounting back plate 100 and communicates with the pressing member groove 301a, and a wedge-shaped locking slot 303b which is opened on the side of one end of the pressing rod 301b.

[0038] In this embodiment, the pressing member 301 is used to cooperate with the clamping member 401 to achieve locking and unlocking of the anti-mistake baffle 203. The unlocking member 302 is arranged on the pressing member 301 and is used to unlock the clamping member 401 after being clamped. The locking member 303 is arranged on the pressing member 301 and is used to match the clamping member 401 to achieve locking of the anti-mistake baffle 203 to prevent the anti-mistake baffle 203 from shifting. The pressing member slot 301a is opened at The back plate 100 is used for inserting and installing the pressing rod 301b. The pressing rod 301b is movably inserted into the pressing member slot 301a, and a certain distance is left from the bottom end of the pressing member slot 301a. A pressing spring 301c is arranged therein. One end of the pressing spring 301c is fixedly connected to the pressing rod 301b, and the other end is fixedly connected to the inner wall of the bottom end of the pressing member slot 301a. The pressing rod 301b is opened near the side wall of one end of the pressing spring 301c. A wedge-shaped locking card slot 303b is provided, and the wedge-shaped locking card slot 303b is communicated with the unlocking member slot 302a, and is used to cooperate with the wedge-shaped clamping block 401c to realize the locking function of the anti-mistake baffle 203. The locking member slot 303a is opened on the mounting back plate 100 and communicates with the wedge-shaped locking card slot 303b, and is used for the wedge-shaped clamping block 401c to slide in the mounting back plate 100 when the anti-mistake baffle 203 moves, so as to realize the anti-mistake baffle 203. The movement trajectory is restricted so that it does not separate from the terminal 201. The unlocking member groove 302a is opened in the mounting back plate 100 and communicates with the pressing member groove 301a, which is used for the installation and movement of the conical unlocking ring 302b. The conical unlocking ring 302b is fixedly sleeved on the pressing rod 301b, and is used to squeeze the wedge-shaped clamping block 401c so that it separates from the clamping connection with the wedge-shaped locking clamping groove 303b, thereby realizing the unlocking of the locked state of the anti-mistake baffle 203.

[0039] The rest of the structure is the same as that of Example 1.

[0040] When in use, in the initial state, the terminal 201 is in a connected state, and the wedge-shaped clamping block 401c is clamped in the wedge-shaped locking groove 303b. At this time, the anti-mistake baffle 203 is immovable. When a test is required, the pressing rod 301b is pressed to drive the conical unlocking ring 302b to move, thereby squeezing the wedge-shaped clamping block 401c so that the wedge-shaped clamping block 401c is disengaged from the wedge-shaped locking groove 303b. At this time, the anti-mistake baffle 203 can be moved. The anti-mistake baffle 203 is moved so that the through hole 203a thereon coincides with S2. At this time, the wedge-shaped clamping block 401c is clamped in the wedge-shaped locking groove 303b in C2, and the anti-mistake baffle 203 is locked again. At this time, the terminal 201 is in a disconnected state, and the test socket 202 is no longer blocked by the anti-mistake baffle 203, and a test plug-in can be performed.

[0041] Example 3

[0042] Reference Figures 1 to 7, which is the third embodiment of the utility model. Different from the previous embodiment, this embodiment provides a clamping assembly 400 for preventing misoperation of the terminal, which includes a clamping member 401 arranged in the anti-misoperation baffle 203, and a reset member 402 arranged on the clamping member 401. The clamping member 401 includes a clamping member slot 401a opened in the anti-misoperation baffle 203, a clamping rod 401b movably inserted in the clamping member slot 401a, and a clamping rod 401b fixedly arranged on the clamping rod 401. b and extends to one end of the wedge-shaped clamping block 401c in the wedge-shaped locking slot 303b, the reset member 402 includes a reset member slot 402a which is opened in the anti-mistake baffle 203 and communicates with the clamping member slot 401a, and a reset spring 402b which is movably sleeved on the clamping rod 401b and located in the reset member slot 402a, one end of the reset spring 402b is fixedly connected to the wedge-shaped clamping block 401c, and the other end is fixedly connected to the inner wall of the reset member slot 402a.

[0043] In this embodiment, the clamping member 401 is used to lock the anti-mistake baffle 203, the reset member 402 is used to reset the clamping member 401, the clamping member slot 401a is used to insert and install the clamping rod 401b, one end of the clamping rod 401b is fixedly connected with a wedge-shaped clamping block 401c, the clamping rod 401b and the wedge-shaped clamping block 401c penetrate the anti-mistake baffle 203 and are used to lock the anti-mistake baffle 203, and the reset member slot 402a is used to install a reset spring 402b. The reset spring 402b is used to reset the wedge-shaped clamping block 401c, so that the anti-mistake baffle 203 can be locked again after moving.

[0044] The rest of the structure is the same as that of Example 2.

[0045] When in use, when it is necessary to move the anti-mistake baffle 203, pressing the pressing rod 301b drives the conical unlocking ring 302b to move, thereby squeezing the wedge-shaped clamping block 401c, and further squeezing the return spring 402b, so that the wedge-shaped clamping block 401c breaks away from the wedge-shaped locking groove 303b and enters the clamping member groove 401a. At this time, the anti-mistake baffle 203 can be moved, and the anti-mistake baffle 203 is moved so that the through hole 203a thereon coincides with S2. At this time, the wedge-shaped clamping block 401c reaches C2. At the wedge-shaped locking slot 303b, the relaxation tension of the reset spring 402b resets the wedge-shaped clamping block 401c so that it is clamped into the wedge-shaped locking slot 303b in C2, and the anti-mistake baffle 203 is locked again. At this time, the terminal 201 is in a disconnected state, and the test socket 202 is no longer blocked by the anti-mistake baffle 203, so a test plug-in can be performed. When the test socket 202 needs to be blocked, just press the pressing rod 301b again, and then move the anti-mistake baffle 203 to the initial position to achieve it.

[0046] 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 ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, 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 utility model. 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 substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Additionally, in order to provide a concise description of example 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.

[0048] 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.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A mis-installation prevention terminal, characterized in that: It comprises a mounting back plate (100), a terminal assembly (200) arranged on the mounting back plate (100), a locking assembly (300) arranged in the mounting back plate (100), and a clamping assembly (400) arranged on the terminal assembly (200) and matching with the locking assembly (300); The terminal assembly (200) comprises a terminal (201) arranged on the mounting back plate (100), a test socket (202) arranged on the terminal (201), and an anti-misoperation baffle (203) arranged on the terminal (201) and matching the test socket (202).

2. The anti-misuse terminal according to claim 1, characterized in that: A through hole (203a) is provided at one end of the anti-misoperation baffle (203), and the through hole (203a) matches the test plug hole (202).

3. The anti-misuse terminal according to claim 1 or 2, characterized in that: The locking assembly (300) comprises a pressing member (301) arranged in the mounting back plate (100), an unlocking member (302) arranged on the pressing member (301), and a locking member (303) arranged on the pressing member (301).

4. The anti-misuse terminal according to claim 3, characterized in that: The pressing member (301) comprises a pressing member slot (301a) opened in the mounting back plate (100), a pressing rod (301b) movably inserted in the pressing member slot (301a), and a pressing spring (301c) arranged at the bottom end of the pressing member slot (301a) and one end of which is fixedly connected to the pressing rod (301b).

5. The anti-misuse terminal according to claim 4, characterized in that: The unlocking member (302) comprises an unlocking member groove (302a) opened in the mounting back plate (100) and communicating with the pressing member groove (301a), and a conical unlocking collar (302b) fixedly sleeved on one end of the pressing rod (301b) and located in the unlocking member groove (302a).

6. The anti-misuse terminal according to claim 4 or 5, characterized in that: The locking member (303) comprises a locking member slot (303a) opened in the mounting back plate (100) and communicating with the pressing member slot (301a), and a wedge-shaped locking slot (303b) opened on the side surface of one end of the pressing rod (301b).

7. The anti-misuse terminal according to claim 6, characterized in that: The clamping assembly (400) comprises a clamping component (401) arranged in the anti-misalignment baffle (203), and a reset component (402) arranged on the clamping component (401).

8. The anti-misuse terminal according to claim 7, characterized in that: The clamping member (401) comprises a clamping member slot (401a) provided in the anti-misalignment baffle (203), a clamping rod (401b) movably inserted in the clamping member slot (401a), and a wedge-shaped clamping block (401c) fixedly arranged at one end of the clamping rod (401b) and extending into the wedge-shaped locking clamping slot (303b).

9. The anti-misuse terminal according to claim 8, characterized in that: The reset member (402) comprises a reset member slot (402a) opened in the anti-misalignment baffle (203) and communicating with the clamping member slot (401a), and a reset spring (402b) movably sleeved on the clamping rod (401b) and located in the reset member slot (402a).

10. The anti-misuse terminal according to claim 9, characterized in that: One end of the return spring (402b) is fixedly connected to the wedge-shaped clamping block (401c), and the other end is fixedly connected to the inner wall of the return member groove (402a).

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