Electromagnetic relay switch structure

Abstract

The utility model discloses an electromagnetic relay switch structure which comprises a device base, the rear side of the device base is vertically connected and provided with a back plate, the middle of the front side of the back plate is provided with a sliding groove, the upper surface of the left side of the device base is provided with an electromagnetic coil, and the bottom of the electromagnetic coil is provided with a connector. The bottom of the connector is connected with a first connecting wire, the upper end of the electromagnetic coil is connected with a first connecting piece, the right side of the electromagnetic coil is provided with a connecting rod, the bottom end of the connecting rod is fixedly provided with a second connecting piece, the right side of the connecting rod is connected with a second connecting wire, and the second connecting wire is connected with a first contact. A supporting rod is installed on the right side of the upper surface of the device base, and a second contact is fixedly installed on the left side of the supporting rod. According to the electromagnetic relay switching device, the sensor starts the motor to drive the circuit connection at the upper end of the electromagnetic coil, and the synchronous linkage drives the connection between the contacts to complete the circuit connection, so that the circuit connection stability of the switch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic relays, in particular to an electromagnetic relay switch structure. Background Art

[0002] A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirements, it causes a predetermined step change in the controlled quantity in the electrical output circuit. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is usually used in automated control circuits. It is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit. However, there are still certain problems when using the existing electromagnetic relay switch device:

[0003] For example, a relay switch device with announcement number CN208093461U has the following technical scheme: it includes a device body, a mounting groove is provided on the top side of the device body, a control block is rotatably installed in the mounting groove, mounting cavities are provided on both sides of the mounting groove and are provided on the device body, a pressure block is slidably installed in the mounting cavity, both sides of the pressure block are rotatably connected with connecting rods, one end of the connecting rod away from the pressure block is rotatably connected with the sliding block, two sliding grooves are provided on the inner wall of the side of the mounting cavity away from the mounting groove, the same mounting rod is welded on the inner walls of both sides of the two sliding grooves, the sliding block is slidably sleeved on the mounting rod, a first spring is sleeved on the mounting rod, and the two ends of the first spring are respectively welded on the inner walls of the two sliding grooves away from each other and on the side of the sliding block away from the pressure block. However, existing relay switch devices mostly use springs for connection, and long-term use of the spring will cause its elastic deformation to relax, causing poor contact or connection delay.

[0004] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0005] In view of the above problems, an innovative design is carried out on the basis of the original relay switch device. Utility Model Content

[0006] The utility model aims to provide an electromagnetic relay switch structure to solve the problem in the background art that long-term use of a spring may lead to relaxation of its elastic deformation, resulting in poor contact or delayed connection.

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

[0008] An electromagnetic relay switch structure includes a device base, a back plate vertically connected and installed on the rear side of the device base, and a sliding groove is opened in the middle of the front side of the back plate, an electromagnetic coil is installed on the left upper surface of the device base, and a connector is arranged at the bottom of the electromagnetic coil, and a first connecting wire is connected and installed at the bottom of the connector, a first connecting piece is connected and installed on the upper end of the electromagnetic coil, and a connecting rod is installed on the right side of the electromagnetic coil, and a second connecting piece is fixedly installed on the bottom end of the connecting rod, a second connecting wire is connected and installed on the right side of the connecting rod, and the second connecting wire is connected and installed with a first contact, a support rod is installed on the right side of the upper surface of the device base, and a second contact is fixedly installed on the left side of the support rod.

[0009] Preferably, a motor is fixedly installed at the bottom of the device base, and the output shaft at the upper end of the motor passes through the device base and is connected to a first threaded column, a first threaded sleeve is threadedly installed above the first threaded column, and the upper end of the first threaded sleeve is connected to the bottom end of the connecting rod, and a sliding block is installed on the rear side of the connecting rod and is located in the sliding groove to form a lifting and moving structure.

[0010] By adopting the above technical solution, when the sensor needs to trigger the function of the relay during the use of the instrument, the current transmission motor is powered and started, driving the first threaded column to rotate, and then the threaded first threaded sleeve drives the connecting rod to move the second connecting piece downward to connect with the first connecting piece to trigger the circuit.

[0011] Preferably, a first straight rack is fixedly installed at the lower right side of the connecting rod, and the teeth of the first straight rack are connected to the transmission gear, and the rear side of the transmission gear is connected to the front side of the back plate through a rotating shaft.

[0012] With the above technical solution, when the connecting rod moves downward, it drives the first straight rack to move downward, and then drives the transmission gear connected with the tooth pattern to rotate, providing mechanical power for the connection between the first contact and the second contact.

[0013] Preferably, a second spur rack is connected and installed on the right side tooth pattern of the transmission gear, and the right side surface of the second spur rack is fixedly installed on the left side of the telescopic rod, and a first contact is fixedly installed on the right side of the upper end of the telescopic rod.

[0014] By adopting the above technical solution, when the transmission gear rotates, the second spur rack and the first spur rack are simultaneously driven to move in opposite directions, thereby driving the first contact point and the second contact point to touch and connect.

[0015] Preferably, a first gear is connected and installed at the bottom end of the first threaded column, a second gear is connected and installed at the right tooth pattern of the first gear, and a second threaded column is connected and installed at the upper end of the second gear.

[0016] With the above technical solution, when the first threaded column rotates, it also drives the first gear to rotate, and then the second gear connected by the tooth pattern rotates in the opposite direction, driving the second threaded column to rotate in the opposite direction, providing mechanical power for the connection between the first contact and the second contact.

[0017] Preferably, a second threaded sleeve is threadedly installed on the upper end of the second threaded column, and a second contact is fixedly installed on the top end of the second threaded sleeve, and the rear side of the second contact is located in a sliding groove on the front side of the back plate through a slider to constitute lifting and lowering movement.

[0018] By adopting the above technical solution, when the second threaded column rotates, the threaded second threaded sleeve drives the first contact to move upward and contact and connect with the second contact.

[0019] Preferably, a transmission belt is horizontally connected and installed on the bottom end of the first threaded column, and a second threaded column is connected and installed on the right side of the transmission belt, and the thread direction of the second threaded column is opposite to that of the first threaded column, and a second threaded sleeve is threadedly connected and installed on the upper end of the second threaded column, and a second contact is fixedly installed on the top end of the second threaded sleeve, and the rear side of the second contact is located in the sliding groove on the front side of the back plate through a slider to constitute lifting and lowering movement.

[0020] By adopting the above technical solution, when the first threaded column rotates, the second threaded column is driven to rotate simultaneously through the connection of the transmission belt. Since the threads are in opposite directions, the threaded second threaded sleeve drives the first contact to move upward and contact and connect with the second contact.

[0021] Compared with the prior art, the utility model has the following beneficial effects: the electromagnetic relay switch structure,

[0022] 1. A second connecting piece that can be lifted and moved is provided, a motor is fixedly installed at the bottom of the device base, and the output shaft at the upper end of the motor penetrates the device base and is connected to a first threaded column, a first threaded sleeve is threadedly installed above the first threaded column, and the upper end of the first threaded sleeve is connected to the bottom end of the connecting rod, and a sliding block is installed on the rear side of the connecting rod and is located in the sliding groove to form a lifting and moving structure. When the sensor needs to trigger the function of the relay during the use of the device, the current transmission motor is powered and started, driving the first threaded column to rotate, and then the threaded first threaded sleeve drives the connecting rod to move the second connecting piece downward to connect with the first connecting piece to trigger the circuit connection;

[0023] 2. A first contact is provided which is synchronously connected according to the second connecting piece. When the connecting rod moves downward, it drives the first spur rack to move downward, thereby driving the transmission gear connected with the tooth pattern to rotate. A second spur rack is installed on the right side of the transmission gear in tooth pattern connection, and the right side surface of the second spur rack is fixedly installed on the left side of the telescopic rod, and a first contact is fixedly installed on the right side of the upper end of the telescopic rod. When the transmission gear rotates, it drives the second spur rack and the first spur rack to move in opposite directions at the same time, driving the first contact and the second contact to touch and connect, thereby providing stability of the switch connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the base and back plate structure of the utility model device;

[0026] Figure 3 This is a schematic diagram of the connecting rod structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the front structure of the second embodiment of the utility model;

[0028] Figure 5 This is a schematic diagram of the front structure of the third embodiment of the present utility model.

[0029] In the figure: 1. device base; 2. back plate; 3. sliding groove; 4. electromagnetic coil; 5. connector; 6. first connecting line; 7. first connecting plate; 8. motor; 9. first threaded column; 10. first threaded sleeve; 11. connecting rod; 12. second connecting plate; 13. sliding block; 14. first spur rack; 15. transmission gear; 16. second spur rack; 17. telescopic rod; 18. second connecting line; 19. first contact; 20. support rod; 21. second contact; 22. first gear; 23. second gear; 24. second threaded column; 25. second threaded sleeve; 26. transmission belt. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1: Please refer to Figure 1-3 , the utility model provides a technical solution:

[0032] An electromagnetic relay switch structure includes a device base 1, a back plate 2 is vertically connected and installed on the rear side of the device base 1, and a sliding groove 3 is opened in the middle of the front side of the back plate 2, an electromagnetic coil 4 is installed on the left upper surface of the device base 1, and a connector 5 is arranged at the bottom of the electromagnetic coil 4, and a first connecting line 6 is connected and installed at the bottom of the connector 5, a first connecting piece 7 is connected and installed at the upper end of the electromagnetic coil 4, and a connecting rod 11 is installed on the right side of the electromagnetic coil 4, and a second connecting piece 12 is fixedly installed at the bottom end of the connecting rod 11, a second connecting line 18 is connected and installed on the right side of the connecting rod 11, and the second connecting line 18 is connected and installed with a first contact 19, a support rod 20 is installed on the right side of the upper surface of the device base 1, and a second contact 21 is fixedly installed on the left side of the support rod 20.

[0033] A motor 8 is fixedly installed at the bottom of the device base 1, and the output shaft at the upper end of the motor 8 penetrates the device base 1 and is connected to a first threaded column 9, a first threaded sleeve 10 is threadedly installed above the first threaded column 9, and the upper end of the first threaded sleeve 10 is connected to the bottom end of the connecting rod 11, and a sliding block 13 is installed on the rear side of the connecting rod 11 and is located in the sliding groove 3 to form a lifting and moving structure. When the sensor needs to trigger the function of the relay during the use of the device, the current transmission motor 8 is powered on and started, driving the first threaded column 9 to rotate, and then the threaded first threaded sleeve 10 drives the connecting rod 11 to move the second connecting piece 12 downward to connect with the first connecting piece 7 to trigger the circuit connection.

[0034] A first spur rack 14 is fixedly installed at the lower right side of the connecting rod 11, and the first spur rack 14 is connected to the transmission gear 15 by its teeth, and the rear side of the transmission gear 15 is connected to the front side of the back plate 2 through a rotating shaft. A second spur rack 16 is connected to the right side of the transmission gear 15 by its teeth, and the right side of the second spur rack 16 is fixedly installed on the left side of the telescopic rod 17, and a first contact 19 is fixedly installed on the right side of the upper end of the telescopic rod 17. When the connecting rod 11 moves downward, it drives the first spur rack 14 to move downward, and then drives the transmission gear 15 connected by its teeth to rotate, providing mechanical power for the connection between the first contact 19 and the second contact 21. When the transmission gear 15 rotates, it drives the second spur rack 16 and the first spur rack 14 to move in the opposite direction, driving the first contact 19 and the second contact 21 to touch and connect.

[0035] Example 2: Please refer to Figure 4 , the utility model provides a technical solution:

[0036] The first gear 22 is connected and installed at the bottom end of the first threaded column 9, and the second gear 23 is connected and installed at the right side of the first gear 22, and the second threaded column 24 is connected and installed at the upper end of the second gear 23. The second threaded sleeve 25 is threadedly connected and installed at the upper end of the second threaded column 24, and the second contact 21 is fixedly installed at the top of the second threaded sleeve 25, and the rear side of the second contact 21 is located in the front side of the back plate 2 through the slider to form a lifting movement. When the first threaded column 9 rotates, it also drives the first gear 22 to rotate, and then the second gear 23 connected with the tooth pattern rotates in the opposite direction to drive the second threaded column 24 to rotate in the opposite direction, providing mechanical power for the connection between the first contact 19 and the second contact 21. When the second threaded column 24 rotates, the threaded second threaded sleeve 25 drives the first contact 19 to move upward and contact and connect with the second contact 21.

[0037] Example 3: Please refer to Figure 5 , the utility model provides a technical solution:

[0038] The bottom end of the first threaded column 9 is horizontally connected with a transmission belt 26, and the right side of the transmission belt 26 is connected with a second threaded column 24, and the thread direction of the second threaded column 24 is opposite to that of the first threaded column 9. The upper end of the second threaded column 24 is threadedly connected with a second threaded sleeve 25, and the top of the second threaded sleeve 25 is fixedly installed with a second contact 21, and the rear side of the second contact 21 is located in the front side of the back plate 2 through a slider to form a lifting movement. When the first threaded column 9 rotates, the second threaded column 24 is driven to rotate at the same time through the connection of the transmission belt 26. Since the thread directions are opposite, the threaded second threaded sleeve 25 drives the first contact 19 to move upward and contact and connect with the second contact 21.

[0039] Working principle:

[0040] When the utility model is in use, when the sensor needs to trigger the function of the relay during the use of the instrument, the current transmission motor 8 is powered on to start, driving the first threaded column 9 to rotate, and then the threaded first threaded sleeve 10 drives the connecting rod 11 to make the second connecting piece 12 move downward and connect with the first connecting piece 7 to trigger the circuit connection. When the connecting rod 11 moves downward, it drives the first spur rack 14 to move downward, and then drives the transmission gear 15 connected by the tooth pattern to rotate, and at the same time drives the second spur rack 16 to move in the opposite direction to the first spur rack 14, driving the first contact 19 to touch and connect with the second contact 21.

[0041] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic relay switch structure, comprising a device base (1), characterized in that: A back plate (2) is vertically connected and installed on the rear side of the device base (1), and a sliding groove (3) is provided in the middle of the front side of the back plate (2); an electromagnetic coil (4) is installed on the left upper surface of the device base (1), and a connector (5) is arranged at the bottom of the electromagnetic coil (4), and a first connecting wire (6) is connected and installed at the bottom of the connector (5); a first connecting piece (7) is connected and installed on the upper end of the electromagnetic coil (4), and a connecting rod (11) is installed on the right side of the electromagnetic coil (4), and a second connecting piece (12) is fixedly installed at the bottom end of the connecting rod (11); a second connecting wire (18) is connected and installed on the right side of the connecting rod (11), and the second connecting wire (18) is connected and installed with a first contact (19); a support rod (20) is installed on the right side of the upper surface of the device base (1), and a second contact (21) is fixedly installed on the left side of the support rod (20).

2. The electromagnetic relay switch structure according to claim 1, characterized in that: A motor (8) is fixedly mounted on the bottom of the device base (1), and an output shaft at the upper end of the motor (8) passes through the device base (1) and is connected to a first threaded column (9), a first threaded sleeve (10) is threadedly mounted on the upper side of the first threaded column (9), and the upper end of the first threaded sleeve (10) is connected to the bottom end of a connecting rod (11), and a sliding block (13) is mounted on the rear side of the connecting rod (11) and is located in a sliding groove (3) to form a lifting and moving structure.

3. The electromagnetic relay switch structure according to claim 2, characterized in that: A first straight rack (14) is fixedly mounted below the right side of the connecting rod (11), and the teeth of the first straight rack (14) are connected to the transmission gear (15), and the rear side of the transmission gear (15) is connected to the front side of the back plate (2) via a rotating shaft.

4. The electromagnetic relay switch structure according to claim 3, characterized in that: A second spur rack (16) is connected and mounted on the right side of the transmission gear (15), and the right side surface of the second spur rack (16) is fixedly mounted on the left side of the telescopic rod (17), and a first contact point (19) is fixedly mounted on the right side of the upper end of the telescopic rod (17).

5. The electromagnetic relay switch structure according to claim 2, characterized in that: The first gear (22) is connected and installed at the bottom end of the first threaded column (9), the second gear (23) is connected and installed at the right tooth pattern of the first gear (22), and the second threaded column (24) is connected and installed at the upper end of the second gear (23).

6. The electromagnetic relay switch structure according to claim 5, characterized in that: The second threaded column (24) is threadedly connected to a second threaded sleeve (25) at its upper end, and a second contact (21) is fixedly mounted on the top of the second threaded sleeve (25), and the rear side of the second contact (21) is located in a sliding groove on the front side of the back plate (2) via a slider to form a lifting movement.

7. The electromagnetic relay switch structure according to claim 2, characterized in that: The bottom end of the first threaded column (9) is horizontally connected to a transmission belt (26), and a second threaded column (24) is connected to the right side of the transmission belt (26), and the thread direction of the second threaded column (24) is opposite to that of the first threaded column (9), and the upper end of the second threaded column (24) is threadedly connected to a second threaded sleeve (25), and a second contact (21) is fixedly installed on the top end of the second threaded sleeve (25), and the rear side of the second contact (21) is located in a sliding groove on the front side of the back plate (2) through a slider to form a lifting movement.

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