A circuit breaker mechanism

Abstract

The utility model discloses a circuit breaker mechanism, which belongs to the technical field of electrical switch mechanism, solves the problem of inconvenient operation of the circuit breaker mechanism, and includes a front panel and a rear panel, an input shaft, a cam shaft and an output shaft are installed between the front panel and the rear panel, an input gear is installed on the input shaft, a transmission gear meshing with the input gear is installed on the cam shaft, a cam is also installed on the cam shaft, a ratchet wheel contacting with the cam is installed on the output shaft, the ratchet wheel is hingedly connected with one end of a switch-off spring, the other end of the switch-off spring is hinged on the rear panel, the end of the cam shaft located on the front panel is hingedly connected with one end of a closing spring, the other end of the closing spring is hinged on the front panel, and the end of the output shaft is connected with an output transmission mechanism. The utility model is used for operating the mechanism of the circuit breaker switch, which can complete automatic resetting and has smooth operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical switch operating mechanisms, and in particular relates to a circuit breaker mechanism. Background Art

[0002] High-voltage circuit breakers are electrical appliances with contacts. The purpose of opening and closing the circuit is achieved by opening and closing the contacts. Therefore, it must rely on a certain mechanical operating system to complete. The mechanical operating device outside the circuit breaker body is called the circuit breaker operating mechanism, and the transmission part connected between the circuit breaker operating mechanism and the circuit breaker moving contact is called the transmission mechanism and lifting mechanism.

[0003] The speed of circuit breaker operation is very high. In order to reduce impact and avoid damage to parts, it is necessary to install a buffer between opening and closing. The buffer is mostly installed near the lifting mechanism. The circuit breaker mechanism operates according to the opening and closing signals. According to the operation and maintenance requirements, in addition to the opening and closing electrical signal indication, the circuit breaker mechanism should also have a mechanical indicator reflecting the opening and closing position on the operating mechanism and circuit breaker.

[0004] At present, there are operating points that are prone to jamming during the opening and closing process of the circuit breaker mechanism, which requires operators to use greater force when operating the mechanism, which is not only inconvenient to operate but also easy to get injured. Utility Model Content

[0005] The purpose of the utility model is to:

[0006] In order to solve the problem that there are operating points that are prone to jamming and inconvenience in operation during the opening and closing process of a circuit breaker mechanism in the prior art, a circuit breaker mechanism is provided.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A circuit breaker mechanism comprises a front panel and a rear panel, an input shaft, a camshaft and an output shaft are installed between the front panel and the rear panel, an input gear is installed on the input shaft, a transmission gear meshing with the input gear is installed on the camshaft, a cam is also installed on the camshaft, a ratchet in contact with the cam is installed on the output shaft, the ratchet is hingedly connected to one end of an opening spring, the other end of the opening spring is hinged to the rear panel, the end of the camshaft located on the front panel is hingedly connected to one end of a closing spring, the other end of the closing spring is hinged to the front panel, and the end of the output shaft is connected to an output transmission mechanism.

[0009] Furthermore, a closing button is installed on the front panel, the closing button is connected to a closing torsion spring, the closing torsion spring is connected to a closing half-shaft through a closing button linkage mechanism, a closing buckle notch is provided at the end of the closing half-shaft, a closing tripping crank arm that cooperates with the closing buckle notch is installed between the front panel and the rear panel, a dial wheel is installed on the cam shaft, and a closing dial wheel head that cooperates with the closing tripping crank arm is installed on the dial wheel.

[0010] Furthermore, a closing coil is installed on the front panel, the closing coil is electrically connected to an electric remote operating mechanism, a closing trigger head is connected to the closing coil, and the closing trigger head cooperates with a closing button linkage mechanism.

[0011] Furthermore, a disconnect button is installed on the front panel, the disconnect button is connected to a disconnect torsion spring, the disconnect torsion spring is connected to a disconnect half-shaft through a disconnect button linkage mechanism, a disconnect half-shaft is provided with a disconnect snap notch, a disconnect tripping arm that cooperates with the disconnect snap notch is installed between the front panel and the rear panel, and the disconnect tripping arm cooperates with one end of the ratchet.

[0012] Furthermore, a trip coil is installed on the front panel, the trip coil is electrically connected to an electric remote operating mechanism, a trip trigger head is connected to the trip coil, and the trip trigger head cooperates with a trip button linkage mechanism.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model has the characteristics that when operating, the closing spring and the opening spring are driven by the mechanism, one is in a releasing state and the other is in an energy storing state. The opening spring stores energy when closing the switch, and the closing spring stores energy when opening the switch, so that the energy is released and the switch state is changed during operation more smoothly and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural view of the utility model close to the side of the opening spring;

[0016] Figure 2 A view of the front panel of the present invention;

[0017] Figure 3 It is a partial view of the button and the button linkage mechanism on the front panel of the utility model;

[0018] Figure 4 It is a cross-sectional view between the front panel and the rear panel of the utility model toward the rear panel;

[0019] Figure 5 This is a structural view of the utility model on the side away from the opening spring;

[0020] Figure 6 It is a structural diagram of the closing coil and the opening coil of the utility model.

[0021] Markings in the figure: 1-front panel, 2-rear panel, 3-input shaft, 4-camshaft, 5-output shaft, 6-input gear, 7-transmission gear, 8-cam, 9-ratchet, 10-opening spring, 11-closing spring, 12-output transmission mechanism, 13-closing button, 14-closing half-shaft, 15-closing tripping arm, 16-opening button, 17-opening half-shaft, 18-opening tripping arm, 19-closing button linkage mechanism, 20-opening button linkage mechanism, 21-closing dial wheel head, 22-closing coil, 23-opening coil. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] A circuit breaker mechanism comprises a front panel 1 and a rear panel 2, an input shaft 3, a camshaft 4 and an output shaft 5 are installed between the front panel 1 and the rear panel 2, an input gear 6 is installed on the input shaft 3, a transmission gear 7 meshing with the input gear 6 is installed on the camshaft 4, a cam 8 is also installed on the camshaft 4, a ratchet 9 in contact with the cam 8 is installed on the output shaft 5, the ratchet 9 is hingedly connected to one end of an opening spring 10, the other end of the opening spring 10 is hinged to the rear panel 2, the end of the camshaft 4 located on the front panel 1 is hingedly connected to one end of a closing spring 11, the other end of the closing spring 11 is hinged to the front panel 1, and the end of the output shaft 5 is connected to an output transmission mechanism 12.

[0024] A closing button 13 is installed on the front panel 1, and the closing button 13 is connected to a closing torsion spring. The closing torsion spring is connected to a closing half-shaft 14 through a closing button 13 linkage mechanism. A closing buckle notch is provided at the end of the closing half-shaft 14. A closing tripping arm 15 that cooperates with the closing buckle notch is installed between the front panel 1 and the rear panel 2. A dial wheel is installed on the camshaft 4, and a closing dial wheel head 21 that cooperates with the closing tripping arm 15 is installed on the dial wheel.

[0025] A closing coil 22 is installed on the front panel 1 , the closing coil 22 is electrically connected to an electric remote operating mechanism, a closing trigger head is connected to the closing coil 22 , and the closing trigger head cooperates with a closing button 13 linkage mechanism.

[0026] A disconnect button 16 is installed on the front panel 1, and the disconnect button 16 is connected to a disconnect torsion spring. The disconnect torsion spring is connected to a disconnect half-shaft 17 through a disconnect button 16 linkage mechanism. A disconnect half-shaft 17 is provided with a disconnect snap notch. A disconnect tripping arm 18 that cooperates with the disconnect snap notch is installed between the front panel 1 and the rear panel 2, and the disconnect tripping arm 18 cooperates with one end of the ratchet 9.

[0027] A trip coil 23 is installed on the front panel 1 , the trip coil 23 is electrically connected to an electric remote operating mechanism, a trip trigger head is connected to the trip coil 23 , and the trip trigger head cooperates with a linkage mechanism of the trip button 16 .

[0028] The workflow of this utility model is as follows:

[0029] The input gear 6 on the input shaft 3 drives the transmission gear 7 on the camshaft 4 to rotate, causing the ratchet 9 on the camshaft 4 to rotate. At this time, the closing spring stores energy;

[0030] Press the closing button 13, the closing button 13 linkage mechanism rotates, driving the closing half shaft 14 to rotate, the buckle notch of the closing half shaft 14 is turned open, the closing tripping arm 15 is disengaged from the buckle and rotates and turns the closing dial wheel head 21, driving the cam shaft 4 to rotate, at this time the closing spring 11 is released, the cam shaft 4 turns the ratchet 9, driving the output shaft 5 to rotate, the mechanism completes the closing, and the opening spring 10 stores energy at the same time;

[0031] Press the opening button 16, the opening button 16 linkage mechanism rotates, driving the opening half shaft 17 to rotate, the buckle notch of the opening half shaft 17 is opened, and the buckled opening tripping arm 18 is rotated, and the opening tripping arm 18 turns the ratchet 9, so that the ratchet 9 drives the output shaft 5 to rotate. At this time, the opening spring 10 is released, the mechanism completes the opening, and returns to its original position.

[0032] The closing half-shaft 14 and the opening half-shaft 17 of the mechanism are both equipped with torsion springs, which can automatically reset after the whole process is completed.

[0033] When the mechanism is closed, the closing spring 11 uses the cam 8 to move the output shaft 5, and when the mechanism is opened, the opening spring 10 directly pulls the output shaft 5.

[0034] As a preferred embodiment, the mechanism of the utility model can be operated to close and open the switch by manual operation buttons or electric remote control. When electric remote control is used, the closing coil 22 and the opening coil 23 can be energized by remote control to trigger the closing trigger head and the opening trigger head, thereby triggering the closing button 13 linkage mechanism and the opening button 16 linkage mechanism, thereby realizing electric remote control.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit breaker mechanism, characterized in that: The invention comprises a front panel (1) and a rear panel (2), wherein an input shaft (3), a cam shaft (4) and an output shaft (5) are installed between the front panel (1) and the rear panel (2); an input gear (6) is installed on the input shaft (3); a transmission gear (7) meshingly connected with the input gear (6) is installed on the cam shaft (4); a cam (8) is also installed on the cam shaft (4); a ratchet (9) in contact with the cam (8) is installed on the output shaft (5); the ratchet (9) is hingedly connected to one end of a switch-opening spring (10); the other end of the switch-opening spring (10) is hingedly connected to the rear panel (2); the end of the cam shaft (4) located on the front panel (1) is hingedly connected to one end of a switch-closing spring (11); the other end of the switch-closing spring (11) is hingedly connected to the front panel (1); and the end of the output shaft (5) is connected to an output transmission mechanism (12).

2. A circuit breaker mechanism according to claim 1, characterized in that: A closing button (13) is mounted on the front panel (1), the closing button (13) is connected to a closing torsion spring, the closing torsion spring is connected to a closing half-shaft (14) via a closing button (13) linkage mechanism, a closing snap notch is provided at the end of the closing half-shaft (14), a closing release arm (15) cooperating with the closing snap notch is mounted between the front panel (1) and the rear panel (2), a dial wheel is mounted on the cam shaft (4), and a closing dial wheel head (21) cooperating with the closing release arm (15) is mounted on the dial wheel.

3. A circuit breaker mechanism according to claim 1, characterized in that: A closing coil (22) is installed on the front panel (1), the closing coil (22) is electrically connected to an electric remote operating mechanism, a closing trigger head is connected to the closing coil (22), and the closing trigger head cooperates with a closing button (13) linkage mechanism.

4. A circuit breaker mechanism according to claim 1, characterized in that: A switch-off button (16) is installed on the front panel (1), the switch-off button (16) is connected to a switch-off torsion spring, the switch-off torsion spring is connected to a switch-off half-shaft (17) via a switch-off button (16) linkage mechanism, the switch-off half-shaft (17) is provided with a switch-off snap notch, a switch-off tripping arm (18) that cooperates with the switch-off snap notch is installed between the front panel (1) and the rear panel (2), and the switch-off tripping arm (18) cooperates with one end of the ratchet (9).

5. A circuit breaker mechanism according to claim 4, characterized in that: A gate opening coil (23) is installed on the front panel (1), the gate opening coil (23) is electrically connected to an electric remote operating mechanism, a gate opening trigger head is connected to the gate opening coil (23), and the gate opening trigger head cooperates with a gate opening button (16) linkage mechanism.

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