Manual test switch structure for electromagnetic relay

Abstract

The utility model discloses a manual test switch structure of electromagnetic relay, including shell and bidirectional push piece switch, the bidirectional push piece switch is located the top of shell, the top fixedly connected with two limit rails of shell, the recess is seted up in the top near left side place of bidirectional push piece switch, the top near left side place of bidirectional push piece switch is equipped with the presser plate, the presser plate is equipped with the limit rod that is set up and is movable and penetrates, the top fixedly connected with the limit plate of limit rod, the top fixedly connected with the fixed frame of presser plate, the bottom near the both sides place of presser plate all is equipped with the movable plate, the movable plate swing joint is in the top of bidirectional push piece switch, the utility model discloses a kind of manual test switch structure of electromagnetic relay, the fixed frame of this device presses down can be to unfasten the fixation of bidirectional push piece switch, then push the fixed frame and drive bidirectional push piece switch to move, unfasten the fixed frame can also be to bidirectional push piece switch fixation, three get, operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a manual test switch structure for an electromagnetic relay. Background Technology

[0002] V6T relays are widely used in smart home appliances. In practical applications, when a device malfunctions, in addition to fault detection of the device itself, it is also necessary to perform abnormality testing on the relay. This involves performing abnormality testing on the relay under non-energized conditions. To do this, a test switch is installed on the relay housing. This switch actuates the moving spring of the electromagnetic relay and checks whether the contacts can make normal contact. This determines whether the relay is malfunctioning, i.e., whether the relay has failed.

[0003] Chinese Patent Publication No. CN219591325U discloses a manual test switch structure for an electromagnetic relay, including a housing of the electromagnetic relay, a bidirectional push switch for driving a rotating top shaft of the electromagnetic relay along a moving spring of the electromagnetic relay, an opening groove on one side of the housing, a bidirectional push switch mounted on the opening groove, a slide rail and a push piece slidingly engaging with the slide rail within a mounting block, the push piece sliding along the slide rail and driving the rotating top shaft to rotate, the rotating top shaft having a pushing part for driving the moving spring of the electromagnetic relay to move, a mating groove at the lower end of the pushing part, the mating groove engaging with the limiting part of a limiting spring, and a self-locking structure on the bidirectional push switch. In use: using a direct-push switch instead of a bidirectional push switch not only makes the status more intuitive and reduces the risk of accidental operation, but also allows operation with a single finger.

[0004] However, in actual use, the device fixes the bidirectional push plate by the cooperation of the limiting protrusion and the limiting groove. However, this fixing method is inconvenient. It requires a lot of force to push the bidirectional push plate to deform the limiting protrusion and jam the limiting protrusion into the inner cavity of the next limiting groove. Moreover, over time, the limiting protrusion will wear down, affecting the normal use of the switch. Summary of the Invention

[0005] The technical problem solved by this utility model is to overcome the defects of the prior art and provide a manual test switch structure for an electromagnetic relay.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A manual test switch structure for an electromagnetic relay includes a housing and a bidirectional push-plate switch. The bidirectional push-plate switch is located on the top of the housing. Two limit rails are fixedly connected to the top of the housing. A groove is formed on the top of the bidirectional push-plate switch near the left side. A pressure plate is provided on the top of the bidirectional push-plate switch near the left side. A limit rod is movably connected through the pressure plate. A limit plate is fixedly connected to the top of the limit rod. A fixing frame is fixedly connected to the top of the pressure plate. Movable plates are provided on the bottom of the pressure plate near the front and rear sides. The movable plates are movably connected to the top of the bidirectional push-plate switch. A limit block is fixedly connected to the bottom of the movable plates. Several limit grooves are formed on the top of the limit rails. A slot is formed on the movable plate. A vertical rod is movably inserted into the bottom of the inner cavity of the slot. A spring is movably sleeved on the outer edge of the vertical rod.

[0007] Preferably, the front and rear sides of the bidirectional pusher switch are respectively movably inserted into the inner cavity of the adjacent limiting rail, and the limiting rail and the bidirectional pusher switch are matched with each other.

[0008] Preferably, the limiting rod is fixedly connected to the bottom of the inner cavity of the groove, and the bottom of the limiting plate is in contact with the top of the pressure plate.

[0009] Preferably, the cross-section of the fixing frame is U-shaped, the top of the fixing frame is fixedly connected with an anti-slip strip, and the vertical distance between the top of the inner side of the fixing frame and the top of the limiting plate is greater than the thickness of the limiting block.

[0010] Preferably, the movable plate is provided with support plates on both the left and right sides. The support plates are fixedly connected to the top of the bidirectional push plate switch. A rotating shaft is rotatably connected to the movable plate, and the two ends of the rotating shaft are fixedly connected through the adjacent support plates.

[0011] Preferably, the limiting block is movably inserted into the inner cavity of an adjacent limiting groove, and the limiting block and the limiting groove are matched with each other.

[0012] Preferably, the vertical rod and the spring are both fixedly connected to the bottom of the inner cavity of the groove, and the top of the spring is in contact with the bottom of the movable plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model provides a manual test switch structure for an electromagnetic relay. The device can release the bidirectional push-plate switch by pressing the fixing bracket downwards, and then push the fixing bracket to move the bidirectional push-plate switch. Releasing the fixing bracket can also fix the bidirectional push-plate switch, achieving three benefits in one go and making the operation more convenient. 2. This utility model discloses a manual test switch structure for an electromagnetic relay. When the pressure plate moves downward, it moves downward at the outer edge of the limiting rod. The setting of the limiting rod ensures that the pressure plate moves within a limited trajectory, thereby ensuring the normal operation of the component. Attached Figure Description

[0014] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a frontal perspective view of the limiting rail of the component of this utility model; Figure 3 This is a front perspective view of the bidirectional push-plate switch component of this utility model; Figure 4 This is a front perspective view of the pressure plate component of this utility model; Figure 5 This is a bottom perspective view of the pressure plate component of this utility model; Figure 6 This is a front perspective view of the limiting rod of this utility model component; Figure 7 This is a front view of the limiting rod of this utility model component; Figure 8 This is a front perspective view of the movable plate of the component of this utility model; Figure 9 This is a bottom perspective view of the movable plate of the component of this utility model.

[0015] The following are the labels in the diagram: 1. Outer shell; 2. Limit rail; 3. Two-way push switch; 4. Limit groove; 5. Groove; 6. Pressure plate; 7. Limit rod; 8. Limit plate; 9. Fixing frame; 10. Anti-slip strip; 11. Movable plate; 12. Limit block; 13. Rotating shaft; 14. Support plate; 15. Spring; 16. Vertical rod; 17. Slot. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-9 This utility model provides a technical solution: A manual test switch structure for an electromagnetic relay includes a housing 1 and a bidirectional push switch 3. The bidirectional push switch 3 is located on the top of the housing 1. Two limit rails 2 are fixedly connected to the top of the housing 1. The front and rear sides of the bidirectional push switch 3 are respectively movably inserted into the inner cavity of the adjacent limit rails 2. The limit rails 2 and the bidirectional push switch 3 are matched with each other. A groove 5 is provided on the top of the bidirectional push switch 3 near the left side. A pressure plate 6 is provided on the top of the bidirectional push switch 3 near the left side. A limit rod 7 is movably inserted through the pressure plate 6. A limit plate 8 is fixedly connected to the top of the limit rod 7. The limit rod 7 is fixedly connected to the bottom of the inner cavity of the groove 5. The bottom of the limit plate 8 is in contact with the top of the pressure plate 6. A fixing frame 9 is fixedly connected to the top of the pressure plate 6. The cross-section of the fixing frame 9 is U-shaped. An anti-slip strip 10 is fixedly connected to the top of the fixing frame 9.

[0018] Movable plates 11 are provided near the bottom and front and rear sides of the pressure plate 6. The movable plates 11 are movably connected to the top of the bidirectional push plate switch 3. Support plates 14 are provided on the left and right sides of the movable plates 11. The support plates 14 are fixedly connected to the top of the bidirectional push plate switch 3. A rotating shaft 13 is rotatably connected to the movable plate 11. The two ends of the rotating shaft 13 are fixedly connected through the adjacent support plates 14. Limit blocks 12 are fixedly connected to the bottom of the movable plate 11. Several limit grooves 4 are opened on the top of the limit rail 2. Limit blocks 12 are fixedly connected to the bottom of the pressure plate 11. 2. The limiting block 12 is movably inserted into the inner cavity of the adjacent limiting groove 4. The limiting block 12 matches the limiting groove 4. The vertical distance between the top of the inner side of the fixing frame 9 and the top of the limiting plate 8 is greater than the thickness of the limiting block 12. The movable plate 11 has a slot 17. The bottom of the inner cavity of the slot 17 is movably inserted with a vertical rod 16. The outer edge of the vertical rod 16 is movably sleeved with a spring 15. The vertical rod 16 and the spring 15 are both fixedly connected to the bottom of the inner cavity of the groove 5. The top of the spring 15 is in contact with the bottom of the movable plate 11.

[0019] Working Principle: This utility model discloses a manual test switch structure for an electromagnetic relay. During use, when the bidirectional push switch 3 needs to be pushed, the fixing frame 9 is pressed down. The fixing frame 9 drives the pressure plate 6 to move downward. The pressure plate 6 moves downward at the outer edge of the limit rod 7. The pressure plate 6 drives the movable plate 11 to flip. The movable plate 11 flips around the pivot 13. When the movable plate 11 flips, the spring 15 is compressed. The movable plate 11 drives the limit block 12 to flip upward away from the limit groove 4, thereby releasing the fixation of the bidirectional push switch 3. Then, the downward force of the fixing frame 9 is maintained, and the fixing frame 9 is pushed. The fixing frame 9 drives the bidirectional push switch 3 to move, pushing the bidirectional push switch 3 to the open or closed position. At this time, the limit block 12 also moves with the bidirectional push switch 3 to the top of the corresponding limit groove 4. Then, the downward force on the fixing frame 9 is released, and the movable plate 11 flips upward under the elastic action of the spring 15. The movable plate 11 drives the limit block 12 to insert into the inner cavity of the limit groove 4. The movable plate 11 drives the pressure plate 6 to move upward to reset.

[0020] The device releases the bidirectional push switch 3 by pressing down on the fixing frame 9, causing the movable plate 11 to rotate upwards and away from the limiting groove 4, thus releasing the bidirectional push switch 3. Then, the fixing frame 9 pushes the bidirectional push switch 3 to the open or closed position. After releasing the downward force on the fixing frame 9, the movable plate 11 rotates upwards under the elastic action of the spring 15, and the movable plate 11 drives the limiting block 12 to insert into the inner cavity of the limiting groove 4, thus fixing the bidirectional push switch 3. In other words, pressing down on the fixing frame 9 can release the bidirectional push switch 3, then pushing the fixing frame 9 can move the bidirectional push switch 3, and releasing the fixing frame 9 can fix the bidirectional push switch 3. This achieves three benefits in one go, making the operation more convenient.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A manual test switch structure for an electromagnetic relay, comprising a housing (1) and a bidirectional push-plate switch (3), wherein the bidirectional push-plate switch (3) is located on top of the housing (1), characterized in that: The top of the outer shell (1) is fixedly connected to two limiting rails (2). The top of the bidirectional push switch (3) is provided with a groove (5) near the left side. The top of the bidirectional push switch (3) is provided with a pressure plate (6) near the left side. A limiting rod (7) is movably passed through the pressure plate (6). A limiting plate (8) is fixedly connected to the top of the limiting rod (7). A fixing frame (9) is fixedly connected to the top of the pressure plate (6). Movable plates (11) are provided near the front and rear sides of the bottom of the pressure plate (6). The movable plates (11) are movably connected to the top of the bidirectional push switch (3). A limiting block (12) is fixedly connected to the bottom of the movable plates (11). Several limiting grooves (4) are provided on the top of the limiting rails (2). A slot (17) is provided on the movable plates (11). A vertical rod (16) is movably inserted into the bottom of the inner cavity of the slot (17). A spring (15) is movably sleeved on the outer edge of the vertical rod (16).

2. The manual test switch structure for an electromagnetic relay according to claim 1, characterized in that: The bidirectional pusher switch (3) is movably inserted into the inner cavity of the adjacent limit rail (2) on both the front and rear sides, and the limit rail (2) and the bidirectional pusher switch (3) are matched with each other.

3. The manual test switch structure for an electromagnetic relay according to claim 1, characterized in that: The limiting rod (7) is fixedly connected to the bottom of the inner cavity of the groove (5), and the bottom of the limiting plate (8) is in contact with the top of the pressure plate (6).

4. The manual test switch structure for an electromagnetic relay according to claim 1, characterized in that: The cross-section of the fixing frame (9) is U-shaped, and the top of the fixing frame (9) is fixedly connected with an anti-slip strip (10). The vertical distance between the top of the inner side of the fixing frame (9) and the top of the limiting plate (8) is greater than the thickness of the limiting block (12).

5. The manual test switch structure for an electromagnetic relay according to claim 1, characterized in that: The movable plate (11) is provided with support plates (14) on both the left and right sides. The support plates (14) are fixedly connected to the top of the bidirectional push plate switch (3). A rotating shaft (13) is rotatably connected to the movable plate (11). The two ends of the rotating shaft (13) are fixedly connected through the adjacent support plates (14).

6. The manual test switch structure for an electromagnetic relay according to claim 1, characterized in that: The limiting block (12) is movably inserted into the inner cavity of the adjacent limiting groove (4), and the limiting block (12) and the limiting groove (4) are matched with each other.

7. The manual test switch structure for an electromagnetic relay according to claim 1, characterized in that: The vertical rod (16) and the spring (15) are both fixedly connected to the bottom of the inner cavity of the groove (5), and the top of the spring (15) is in contact with the bottom of the movable plate (11).

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