Relay with locking function

Abstract

The utility model relates to the technical field of relays, and discloses a relay with a locking function, which comprises a shell, a switch is arranged on the shell, a rotating plate and an electrical element are arranged in the shell, a moving piece and a static piece are arranged on the electrical element, when the switch moves, the rotating plate drives the moving piece and the static piece to be separated from each other or abut against each other through the electrical element, and a locking piece is arranged on the shell. The locking piece can be located in the moving path of the switch, when the locking piece is located on the moving path of the switch, the switch cannot drive the rotating plate to move, and at the moment, the circuit is switched off, workers move the locking piece to enable the locking piece to be located in the moving path of the switch, so that the locking piece limits the movement of the switch; therefore, the switch cannot drive the rotating plate to move, the rotating plate is difficult to close a circuit through an electrical element, the circuit can be kept in an open state, the switch cannot be driven to move when a worker mistakenly touches the switch, the danger caused by the fact that the worker mistakenly touches the switch is reduced, and potential safety hazards are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of relays, and in particular to a relay with a lock. Background Art

[0002] A relay is a structure that controls switches. Based on the electromagnetic principle, it connects or disconnects large currents or voltages by controlling smaller current or voltage signals. A magnetic latching relay is a type of relay that is able to maintain the state of a magnetic field.

[0003] In the related technology, the relay includes a shell, in which a rotating plate, an electrical component, a switch, a moving plate and a static plate are arranged. The switch is arranged on the rotating plate, and the moving plate and the static plate are connected to the electrical component. The electrical component can drive the rotating plate to move, and the rotating plate can realize the abutment or separation of the moving plate and the static plate. When the switch moves, the rotating plate rotates, and the rotating plate realizes the abutment or separation of the moving plate and the static plate through the electrical component, thereby realizing the disconnection or connection of the circuit.

[0004] When the relay needs to be disconnected during maintenance, people use a switch to close the circuit. However, when repairing the relay, the staff may accidentally touch the switch, causing the circuit to open, which may put the staff in danger and pose a safety hazard. Utility Model Content

[0005] In order to improve the problem that the switch may be opened due to accidental touch, the present application provides a relay with locking.

[0006] The present application provides a relay with locking, which adopts the following technical solution:

[0007] A relay with a lock comprises a shell, a switch is arranged on the shell, a rotating plate and an electrical component are arranged in the shell, a moving plate and a static plate are arranged on the electrical component, when the switch moves, the rotating plate drives the moving plate and the static plate to separate from or abut each other through the electrical component, a locking piece is arranged on the shell, and the locking piece can be located in the moving path of the switch, when the locking piece is located in the moving path of the switch, the switch cannot drive the rotating plate to move, and the circuit is disconnected at this time.

[0008] By adopting the above technical solution, the staff moves the locking piece so that the locking piece is located in the moving path of the switch, so that the locking piece limits the movement of the switch, thereby preventing the switch from driving the rotating plate to move, making it difficult for the rotating plate to close the circuit through electrical components, and thus allowing the circuit to remain in an open state. When the staff accidentally touches the switch, it will not cause the switch to move, thereby reducing the danger caused by the staff accidentally touching the switch and reducing safety hazards.

[0009] Optionally, the locking member includes a locking rod, the housing is provided with a through hole for the locking rod to pass through, the switch is provided with a locking groove for the locking rod to be inserted into, and when the locking rod is inserted into the locking groove, the circuit is disconnected.

[0010] By adopting the above technical solution, the locking rod is inserted into the locking groove through the through hole, so that the groove wall of the locking groove restricts the locking rod, and the hole wall of the through hole restricts the locking rod, so that the switch and the locking rod are fixed to each other, making it difficult for the switch to move on the housing, making it difficult for the staff to accidentally touch the switch and cause the circuit to be closed.

[0011] Optionally, the locking member also includes a stop block, a stop groove is provided on the shell, and a groove wall of the stop groove is provided with a groove, when the stop block is located in the stop groove, the locking rod can be located in the locking groove, and when the stop block is located in the groove, the locking rod can be disengaged from the locking groove.

[0012] By adopting the above technical solution, the stop block moves from the groove to the stop groove, so that the locking rod can be inserted into the locking groove, so that the locking rod and the switch are fixed to each other, and the stop block moves from the stop groove to the groove, so that the locking rod moves in the through hole, so that the locking rod is disengaged from the locking groove, thereby allowing the switch to move, and the switch can drive the electrical component to move, so that the switch realizes the closing of the circuit.

[0013] Optionally, the groove extends along the length direction of the locking rod, and the stop block can move along the groove into the stop slot.

[0014] By adopting the above technical solution, when the staff moves the switch, the locking groove can be aligned with the perforation, and the groove extends along the length direction of the locking rod. The stop block can move from the groove to the stop groove, so that the switch can be locked, thereby achieving automatic locking when the circuit is disconnected, so that the staff does not need to manually drive the locking rod to move, so that the locking rod can be inserted into the locking groove, thereby reducing the situation where the staff forgets to move the locking rod and causes danger.

[0015] Optionally, an operating groove is provided on the end surface of the locking rod, and the operating groove is used for taking the tool out of the shell.

[0016] By adopting the above technical solution, the staff inserts a tool into the operating slot to move the locking rod, making it difficult for the staff to directly pull out the locking rod, further reducing the situation where the staff accidentally takes out the locking rod, and strengthening the locking effect of the locking rod on the switch.

[0017] Optionally, a rotating block is provided on the end surface of the rotating plate, and a rotating groove for inserting the rotating block is provided on the switch.

[0018] By adopting the above technical solution, when the switch is moving, the rotating block is inserted into the rotating groove, and the groove wall of the rotating groove restricts the rotating block, so that the switch can drive the rotating block to move, that is, the switch can drive the rotating plate to rotate.

[0019] Optionally, the end surface of the rotating block has an arc surface, and the arc surface is located in the rotating groove.

[0020] By adopting the above technical solution, the arc surface is located in the rotating groove, so that the groove wall of the rotating groove abuts the arc surface, which can reduce the wear on the rotating block, so that the rotating block is not easily damaged when rotating in the rotating groove for a long time, thereby extending the service life of the rotating block.

[0021] Optionally, a placement groove is provided on the shell, the electrical component and the rotating plate are both arranged in the placement groove, the shell is provided with a mounting cover for sealing the placement groove, the mounting cover is provided with a fixing member, and the fixing member is used to limit the separation of the mounting cover from the shell.

[0022] By adopting the above technical solution, the mounting cover and the shell are fixed to each other through the fixing parts, so that the mounting cover can stably cover the placement groove, thereby protecting the electrical components and the rotating plate, and reducing the damage to the electrical components and the rotating plate caused by external debris.

[0023] Optionally, the fixing member includes a fixing block, which is arranged on the mounting cover, the shell is provided with a clamping block, and the fixing block is provided with a clamping hole for the clamping block to pass through, and when the clamping block is inserted into the clamping hole, the mounting cover and the shell are fixed to each other.

[0024] By adopting the above technical solution, the card block is inserted into the card hole, and the hole wall of the card hole restricts the card block, so that the fixing block can be fixed to the card block, and the installation cover can be firmly fixed on the shell.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The locking piece is located in the moving path of the switch, so that the locking piece limits the movement of the switch, so that the switch cannot drive the rotating plate to move, and it is difficult for the rotating plate to achieve mutual contact between the moving piece and the static piece through the electrical components, so that even if the staff accidentally touches the switch, it will not cause the switch to move, thereby reducing the danger caused by the staff accidentally touching the switch and reducing safety hazards.

[0027] 2. The stop block moves from the groove into the stop groove, so that the locking rod can be inserted into the locking groove, so that the locking rod and the switch are fixed to each other. The stop block moves from the stop groove into the groove, so that the locking rod moves in the through hole, so that the locking rod is disengaged from the locking groove, so that the switch can move, and the switch drives the electrical component to move, so that the switch realizes the closing of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0029] Figure 2 is an exploded schematic diagram highlighting the placement slot in an embodiment of the present application;

[0030] Figure 3 It is a structural schematic diagram highlighting the stop block in the embodiment of the present application.

[0031] Figure numerals: 1, shell; 11, placement groove; 12, electrical component; 13, moving plate; 14, static plate; 15, driving hole; 16, clamping block; 161, guide surface; 17, perforation; 2, rotating plate; 21, rotating block; 211, arc surface; 3, switch; 31, rotating groove; 32, locking groove; 4, mounting cover; 41, fixing piece; 42, clamping hole; 5, locking piece; 51, locking rod; 52, stop block; 53, limit block; 531, first locking part; 532, second locking part; 533, locking hole; 534, stop groove; 535, groove; 54, operating groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] This embodiment discloses a relay with a lock. Figure 1 and Figure 2 A relay with locking includes a housing 1, a placement groove 11 is opened on the housing 1, an electrical component 12 is fixedly connected in the placement groove 11, a moving piece 13 and a static piece 14 are provided on the electrical component 12, the moving piece 13 is connected to a wire, and the static piece 14 is connected to another wire. When the moving piece 13 and the static piece 14 abut against each other, the circuit is closed.

[0034] Reference Figure 1 and Figure 2 A rotating plate 2 is provided in the housing 1, and a rotating block 21 is fixedly connected to the end surface of the rotating plate 2, and an arc surface 211 is provided on the end surface of the rotating block 21 away from the rotating block 21. A switch 3 is provided on the housing 1, and a driving hole 15 is provided on the housing 1. The switch 3 extends into the placement groove 11 through the driving hole 15. A rotating groove 31 for inserting the rotating block 21 is provided on the end surface of the switch 3. The arc surface 211 is located in the rotating groove 31. When the switch 3 moves, the switch 3 drives the rotating block 21 to move, so that the rotating plate 2 rotates, and the rotating plate 2 realizes the opening or closing of the circuit through the electrical component 12.

[0035] Reference Figure 1, a mounting cover 4 is provided on the shell 1, and the mounting cover 4 can block the opening of the placement groove 11. A fixing member 41 is provided on the mounting cover 4, and the fixing member 41 can limit the mounting cover 4 from detaching from the shell 1. The fixing member 41 includes a plurality of fixing blocks, and the plurality of fixing blocks are distributed in a circumferential array along the mounting cover 4. A clamping hole 42 is provided on the end face of the fixing block. A clamping block 16 is fixedly connected to the outer surface of the shell 1, and the clamping block 16 can be inserted into the clamping hole 42. A guide surface 161 is provided on the end face of the clamping block 16, and the guide surface 161 is inclined in the installation direction of the mounting cover 4 and in the direction away from the shell 1. The guide surface 161 is located in the installation path of the fixing block, that is, the fixing block can extend along the inclined direction of the guide surface 161, so that the clamping block 16 can be inserted into the clamping hole 42, thereby fixing the fixing block.

[0036] Reference Figure 1 , Figure 2 and Figure 3 , a locking member 5 is provided on the housing 1, and the locking member 5 can be located on the moving path of the switch 3. The locking member 5 includes a locking rod 51 and a stop block 52, and the stop block 52 is fixedly connected to the outer surface of the locking rod 51. A through hole 17 for the locking rod 51 to pass through is provided on the housing 1, and a limit block 53 is provided on the housing 1. The limit block 53 includes a first locking portion 531 and a second locking portion 532. A locking hole 533 is provided on the limit block 53, and the locking hole 533 is for the locking rod 51 to pass through. In this embodiment, the first locking portion 531 is fixedly connected to the housing 1, and the second locking portion 532 is fixedly connected to the mounting cover 4. In other embodiments, the limit block 53 is fixedly connected to the housing 1, or the limit block 53 is fixedly connected to the mounting cover 4.

[0037] Reference Figure 2 and Figure 3 The locking hole 533 has a retaining groove 534 on its wall for the retaining block 52 to be inserted into. The retaining groove 534 extends along the circumference of the limiting block 53 and penetrates the outer surface of the limiting block 53. The locking hole 533 has a groove 535 on its wall for communicating with the retaining groove 534. The groove 535 extends along the length direction of the limiting block 53 and penetrates the outer surface of the limiting block 53. The groove 535 is located on the side of the retaining groove 534 away from the housing 1. The end surface of the switch 3 has a locking groove 32 on its end for the locking rod 51 to be inserted into.

[0038] Reference Figure 2 and Figure 3When the stop block 52 is located in the stop groove 534, one end of the locking rod 51 passes through the through hole 17 and is inserted into the locking groove 32. When the stop block 52 is located in the groove 535, the locking rod 51 is not in the locking groove 32, and the locking rod 51 abuts against the end surface of the switch 3. When the switch 3 moves, the locking groove 32 is aligned with the through hole 17, allowing the stop block 52 to move from the groove 535 to the stop groove 534, so that one end of the locking rod 51 is inserted into the locking groove 32.

[0039] Reference Figure 3 An operation groove 54 is provided on the end surface of the locking rod 51, and the operation groove 54 is for inserting a tool. When the tool is inserted into the operation groove 54, the locking rod 51 can be taken out from the locking hole 533.

[0040] The implementation principle of a locked relay in an embodiment of the present application is as follows: a staff member drives the switch 3 to move so that the locking groove 32 is aligned with the through hole 17, so that the stop block 52 moves from the groove 535 to the stop groove 534, and one end of the locking rod 51 is inserted into the locking groove 32.

[0041] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A relay with a lock, comprising a housing (1), a switch (3) being provided on the housing (1), a rotating plate (2) and an electrical component (12) being provided inside the housing (1), a moving piece (13) and a stationary piece (14) being provided on the electrical component (12), when the switch (3) moves, the rotating plate (2) drives the moving piece (13) and the stationary piece (14) to separate from or abut against each other through the electrical component (12), characterized in that: The housing (1) is provided with a locking member (5), and the locking member (5) can be located in the moving path of the switch (3). When the locking member (5) is located in the moving path of the switch (3), the switch (3) cannot drive the rotating plate (2) to move, and the circuit is disconnected at this time.

2. A locking relay according to claim 1, characterized in that: The locking member (5) comprises a locking rod (51), the housing (1) is provided with a through hole (17) for the locking rod (51) to pass through, the switch (3) is provided with a locking groove (32) for the locking rod (51) to be inserted into, and when the locking rod (51) is inserted into the locking groove (32), the circuit is disconnected.

3. A locking relay according to claim 2, characterized in that: The locking member (5) further comprises a stop block (52), a stop groove (534) is provided on the housing (1), a groove wall of the stop groove (534) is provided with a groove (535), when the stop block (52) is located in the stop groove (534), the locking rod (51) can be located in the locking groove (32), when the stop block (52) is located in the groove (535), the locking rod (51) can be separated from the locking groove (32).

4. A locking relay according to claim 3, characterized in that: The groove (535) extends along the length direction of the locking rod (51), and the stop block (52) can move along the groove (535) into the stop slot (534).

5. A locking relay according to claim 2, characterized in that: An operating groove (54) is provided on the end surface of the locking rod (51), and the operating groove (54) is used to remove the tool from the housing (1).

6. A locking relay according to claim 1, characterized in that: A rotating block (21) is provided on the end surface of the rotating plate (2), and a rotating groove (31) for inserting the rotating block (21) is provided on the switch (3).

7. A locking relay according to claim 6, characterized in that: The end surface of the rotating block (21) is provided with an arc surface (211), and the arc surface (211) is located in the rotating groove (31).

8. A locking relay according to claim 1, characterized in that: The housing (1) is provided with a placement groove (11), the electrical component (12) and the rotating plate (2) are both arranged in the placement groove (11), the housing (1) is provided with a mounting cover (4) for blocking the placement groove (11), the mounting cover (4) is provided with a fixing member (41), and the fixing member (41) is used to limit the separation of the mounting cover (4) from the housing (1).

9. A locking relay according to claim 8, characterized in that: The fixing member (41) comprises a fixing block, the fixing block is arranged on the mounting cover (4), the housing (1) is provided with a clamping block (16), the fixing block is provided with a clamping hole (42) for the clamping block (16) to pass through, and when the clamping block (16) is inserted into the clamping hole (42), the mounting cover (4) and the housing (1) are fixed to each other.

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