Connecting shaft transmission mechanism of outgoing line cabinet

Abstract

The utility model provides a connecting shaft transmission mechanism of an outgoing line cabinet, the outgoing line cabinet comprises a cabinet body and an operation board arranged above the cabinet body, the transmission mechanism is connected between the operation board and a microswitch, the transmission mechanism comprises a rotating convex shaft arranged in a water drop shape, and a connecting shaft arranged on the rotating convex shaft, the striking part comprises a protruding part for striking the micro switch and an avoiding part for avoiding the micro switch; the main shaft is coaxially connected with the rotating convex shaft; one end of the transmission shaft is connected with the operation board, the other end of the transmission shaft is connected with the main shaft, and when the operation board rotates, the transmission shaft can be driven to rotate to drive the rotating convex shaft to impact the microswitch; the transmission mechanism can overcome the defects that in the prior art, a contact of a microswitch is small, the requirement for the connecting precision between the microswitch and the transmission shaft is high, in the rotating process of the transmission shaft, the contact of the microswitch is not large, and the contact of the microswitch is not large. And the defect that the transmission shaft and the microswitch are not installed in place possibly can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of outlet cabinets, in particular to a connecting shaft transmission mechanism of an outlet cabinet. Background Art

[0002] The outgoing line cabinet refers to the switch cabinet that distributes electric energy from the busbar, which includes a variety of equipment such as disconnectors, circuit breakers, grounding switches, current transformers, lightning arresters, etc. In the prior art, a microswitch is installed in the outgoing line cabinet to display the opening and closing status of the cabinet. However, the contacts of the microswitch are small, and the connection accuracy requirements between the microswitch and the transmission shaft are relatively high. When the transmission shaft is rotating, the transmission shaft and the microswitch may not be installed in place, so that the transmission shaft does not hit the microswitch contacts during the swinging process, and the opening and closing status of the outgoing line cabinet cannot be correctly displayed. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the contacts of the microswitch in the prior art are small, and the connection accuracy requirements between the microswitch and the transmission shaft are relatively high. When the transmission shaft is rotating, the transmission shaft and the microswitch may not be installed in place, resulting in the transmission shaft not hitting the microswitch contacts during the swinging process, thereby failing to correctly display the opening and closing status of the wiring cabinet. Thus, a connecting shaft transmission mechanism is provided that does not require high-precision determination of the position of the transmission shaft and the microswitch, but can also ensure the accurate operation of the microswitch.

[0004] To this end, the utility model provides a connecting shaft transmission mechanism of an outlet cabinet, the outlet cabinet comprises a cabinet body and an operating panel arranged above the cabinet body, a transmission mechanism is connected between the operating panel and the micro switch, and the transmission mechanism comprises: a rotating cam shaft, which is arranged in a "," shape, and comprises a protrusion for hitting the micro switch and an avoidance portion for avoiding the micro switch; a main shaft, which is coaxially connected with the rotating cam shaft; a transmission shaft, one end of which is connected to the operating panel, and the other end of which is connected to the main shaft, when the operating panel rotates, it can drive the transmission shaft to rotate to drive the rotating cam shaft to hit the micro switch; the rotating cam shaft has a first end and a second end, an arc surface is formed from the first end to the second end, and the distance from the first end to the central axis point of the rotating cam shaft gradually increases to the distance from the second end to the central axis point.

[0005] Further: the second end is located at a connection position between the protruding portion and the avoiding portion, and a avoiding arc surface for avoiding the micro switch is provided at the connection position between the second end and the avoiding portion.

[0006] Furthermore: a fastening nail is provided between the main shaft and the rotating cam shaft for connecting the two and making the two move synchronously.

[0007] Furthermore: the fastening nail is provided with a screwing groove for inserting an external tool to screw the fastening nail, and the screwing groove is a hexagonal structure.

[0008] The technical solution of the utility model has the following advantages:

[0009] 1. The utility model provides a connecting shaft transmission mechanism for an outlet cabinet. Compared with the prior art, the rotating cam shaft has a protrusion and an avoidance portion. During the continuous rotation of the rotating cam shaft, the protrusion will slowly approach the micro switch until it hits the micro switch. Finally, when the avoidance portion is opposite to the micro switch, it will no longer hit the micro switch. When it is necessary to switch the opening or closing state, the external operator rotates the operating disk again, the operating disk drives the transmission shaft to move, the transmission shaft drives the main shaft to move, and the main shaft drives the rotating cam shaft to rotate. At this time, the protrusion hits the micro switch. If the micro switch originally indicated a closed state, it will now indicate a closed state. If it was originally in the open state, it will now indicate the closed state (the indication state is set manually). The rotating cam continues to rotate and the avoidance portion is opposite to the microswitch, so the microswitch will not be pressed. By setting the protrusion and the avoidance portion on the rotating cam, the distance between the microswitch and the rotating cam can have a certain tolerance. It is sufficient to ensure that the rotating cam can hit the microswitch during the rotation. The rotating cam is used for transmission, with small transmission torque, stable transmission speed and relatively simple assembly method. When it is found that the distance between the rotating cam and the microswitch is too far or too close, the distance between the microswitch can be flexibly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 The overall structural diagram of the outlet cabinet is shown in FIG.

[0012] Figure 2 It is a schematic diagram of the micro switch not contacting the rotating cam shaft;

[0013] Figure 3 This is a structural diagram of the contact between the micro switch and the rotating cam shaft.

[0014] Description of reference numerals:

[0015] 1. Cabinet; 2. Operation panel; 3. Micro switch; 4. Rotating cam; 41. Protruding portion; 42. Avoiding portion; 43. First end; 44. Second end; 5. Main shaft; 6. Transmission shaft; 7. Avoiding arc surface; 8. Fastening nail; 9. Twist groove. DETAILED DESCRIPTION

[0016] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0017] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] Example

[0021] The present embodiment provides a connecting shaft transmission mechanism of an outlet cabinet, the outlet cabinet includes a cabinet body 1 and an operating panel 2 arranged above the cabinet body 1, a transmission mechanism is connected between the operating panel 2 and the micro switch 3, and the transmission mechanism includes: a rotating cam 4, which is arranged in a water drop shape, and includes a protrusion 41 for hitting the micro switch 3 and an avoidance portion 42 for avoiding the micro switch 3; a main shaft 5, which is coaxially connected to the rotating cam 4; a transmission shaft 6, one end of which is connected to the operating panel 2, and the other end of which is connected to the main shaft 5, when the operating panel 2 rotates, it can drive the transmission shaft 6 to rotate to drive the rotating cam 4 to hit the micro switch 3; the rotating cam 4 has a first end 43 and a second end 44, and an arc surface is formed from the first end 43 to the second end 44, and the distance from the first end 43 to the central axis point of the rotating cam 4 to the distance from the second end 44 to the central axis point gradually increases.

[0022] The above specific improvements are: Figure 2 and Figure 3 As shown, during operation, an external person is required to rotate the operating disk 2 (using a special tool to rotate), and then the transmission shaft 6 rotates to drive the main shaft 5 to rotate, and the main shaft 5 rotates to drive the rotating cam 4 to rotate. When the rotating cam 4 rotates, its protrusion 41 will knock the micro switch 3, thereby triggering the micro switch 3, so that the device displays an opening or closing indication. Compared with the prior art, the rotating cam 4 has a protrusion 41 and an avoidance portion 42. During the continuous rotation of the rotating cam 4, the protrusion 41 will slowly approach the micro switch 3 until it knocks the micro switch 3, and finally rotate until the avoidance portion 42 is opposite to the micro switch 3, and then it will no longer hit the micro switch 3. When it is necessary to switch the opening or closing state, the external operator rotates the operating disk 2 again, and the operating disk 2 drives the transmission shaft 6 to move, and the transmission shaft 6 drives the main shaft 5 to move, and the main shaft 5 drives the rotating cam 4 to rotate (the rotation of the operating disk 2 drives the rotating cam 4 is a prior art, and its transmission relationship is not further described here. At this time, the protruding portion 41 hits the micro switch 3. If the micro switch 3 originally indicated a closed state, it will now indicate an open state. If it was originally an open state, it will now indicate a closed state (the indicated state is manually set). The rotating cam 4 continues to rotate. When the avoidance portion 42 is opposite to the micro switch 3, the micro switch 3 will not be pressed. By setting the protruding portion 41 and the avoidance portion 42 on the rotating cam 4, the distance between the micro switch 3 and the rotating cam 4 can have a certain tolerance. It is sufficient to ensure that the rotating cam 4 can hit the micro switch 3 during the rotation process. In addition, the rotating cam 4 is used for transmission, the transmission torque is small, the transmission speed is stable, and the assembly method is relatively simple. When it is found that the distance between the rotating cam 4 and the micro switch 3 is too far or too close, the distance between the micro switch 3 can be flexibly adjusted.

[0023] On the basis of the above embodiment: the second end 44 is located at the connection position between the protrusion 41 and the avoidance portion 42 , and an avoidance arc surface 7 for avoiding the micro switch 3 is provided at the connection position between the second end 44 and the avoidance portion 42 .

[0024] The above specific improvements are: Figure 2 and Figure 3 As shown, after the first end 43 and the second end 44 have struck the micro switch 3, during the rotation of the rotating cam 4, as long as the second end 44 has completed contact with the micro switch 3, the rotating cam 4 continues to rotate, and the avoidance arc surface 7 will be opposite to the micro switch 3. When the avoidance arc surface 7 is opposite to the micro switch 3, the rotating cam 4 will not contact the micro switch 3 even if it continues to rotate.

[0025] On the basis of the above embodiment: a fastening nail 8 is provided between the main shaft 5 and the rotating cam shaft 4 for connecting the two and making the two move synchronously.

[0026] On the basis of the above embodiment: the fastening nail 8 is provided with a screwing groove 9 for inserting an external tool to screw the fastening nail 8, and the screwing groove 9 is a hexagonal structure.

[0027] The above-mentioned specific improvements are: through the setting of the fastening nail 8, the main shaft 5 and the rotating cam 4 can be connected to ensure that when the transmission shaft 6 drives the main shaft 5 to rotate, it can drive the rotating cam 4 to rotate synchronously with the main shaft 5. The screwing groove 9 is set to a hexagonal structure, which can be adapted to the general hexagonal tooling components, making it convenient to screw or tighten the screws.

[0028] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A connecting shaft transmission mechanism for an outlet cabinet, characterized in that: The outlet cabinet comprises a cabinet body (1) and an operating panel (2) arranged above the cabinet body (1), wherein a transmission mechanism is connected between the operating panel (2) and the micro switch (3), and the transmission mechanism comprises: The rotating convex shaft (4) is arranged in a "", shape, and comprises a protruding portion (41) for striking the micro switch (3) and an avoiding portion (42) for avoiding the micro switch (3); A main shaft (5) is coaxially connected to the rotating cam shaft (4); A transmission shaft (6) is connected to the operating panel (2) at one end and to the main shaft (5) at the other end. When the operating panel (2) rotates, the transmission shaft (6) can be driven to rotate so as to drive the rotating cam shaft (4) to hit the micro switch (3); The rotating cam shaft (4) has a first end (43) and a second end (44), an arc surface is formed from the first end (43) to the second end (44), and the distance from the first end (43) to the central axis point of the rotating cam shaft (4) gradually increases as the distance from the second end (44) to the central axis point increases.

2. The connecting shaft transmission mechanism of the outlet cabinet according to claim 1, characterized in that: The second end (44) is located at the connection position between the protruding portion (41) and the avoiding portion (42), and a avoiding arc surface (7) for avoiding the micro switch (3) is provided at the connection position between the avoiding portion (42) and the second end (44).

3. The connecting shaft transmission mechanism of the outlet cabinet according to claim 2 is characterized in that: A fastening pin (8) is provided between the main shaft (5) and the rotating cam shaft (4) for connecting the two so as to enable the two to move synchronously.

4. The connecting shaft transmission mechanism of the outlet cabinet according to claim 3 is characterized in that: The fastening nail (8) is provided with a screwing groove (9) for inserting an external tool to screw the fastening nail (8), and the screwing groove (9) is in a hexagonal structure.

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