CN205452147U - Side dress handcart -type vacuum circuit breaker interlocking device - Google Patents

Abstract

The utility model discloses a side dress handcart -type vacuum circuit breaker interlocking device, it relates to circuit breaker interlocking gear technical field. Interlocking guide rail rod's upper portion lies in the square hole of limiting plate, interlocking guide rail rod's lower part is located lower limit plate's square hole, interlocking guide rail rod's lower part is through the round pin, the packing ring is installed on lower limit plate with the pressure spring cooperation that resets, lower limit plate fixes on side dress handcart -type vacuum circuit breaker's bottom curb plate, the main shaft turning arm is installed to the right -hand member of main shaft, install fixing bent plate on the circuit breaker curb plate, the last closing electromagnet that installs of fixing bent plate, the bottom bent plate is installed in side dress handcart -type vacuum circuit breaker's climbing mechanism base, it wins in succession to install two interlockings on the interlocking guide rail rod. The utility model provides a side dress handcart -type vacuum circuit breaker problem of preventing the mistake interlocking, handcart -type vacuum circuit breaker provides the guarantee in the application of the miniaturized design of distribution for the side dress, the reliability is high.

Description

Side-mounted handcart type vacuum circuit breaker interlock mechanism

technical field

The utility model relates to the technical field of circuit breaker interlocking mechanisms, in particular to a side-mounted handcart type vacuum circuit breaker interlocking mechanism.

Background technique

Most of the existing handcart-type vacuum circuit breakers are installed in a front-mounted manner. The bottom uses a chassis to move back and forth in the horizontal direction. There is a problem of anti-misoperation interlock during the moving process of the handcart vacuum circuit breaker. Therefore, the necessary anti-misoperation interlock is required during the propulsion process of the handcart vacuum circuit breaker, that is, the circuit breaker cannot be moved when the circuit breaker is closed, and the circuit breaker cannot be closed when it is moved. , based on this, it is still necessary to design a side-mounted handcart type vacuum circuit breaker interlock mechanism.

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a side-mounted handcart-type vacuum circuit breaker interlock mechanism, which has a simple structure and reasonable design, and solves the problem of preventing misinterlocking of the side-mounted handcart-type vacuum circuit breaker. problem, high reliability.

In order to achieve the above object, the utility model is realized through the following technical scheme: the interlocking mechanism of the side-mounted handcart type vacuum circuit breaker, including the interlocking guide rail rod, the upper limit plate, the lower limit plate, the circuit breaker side plate, the main shaft turning Arm, screw rod, return compression spring, closing electromagnet, fixed bending plate, main shaft, interlocking lever, bottom bending plate, elastic pin, upper interlocking square rod, lower interlocking square rod and rollers, side loading handcart The right side of the type vacuum circuit breaker is equipped with an interlocking guide rail rod. The upper part of the interlocking guide rail rod is located in the square hole of the upper limit plate, the lower part of the interlocking guide rail rod is located in the square hole of the lower limit plate, and the lower part of the interlocking guide rail rod It is installed on the lower limit plate through the cooperation of pins, washers and return compression springs. The lower limit plate is fixed on the bottom side plate of the side-mounted handcart vacuum circuit breaker. The right end of the main shaft is equipped with a main shaft crank arm. There is a fixed bent plate, on which a closing electromagnet is installed, and the bottom bent plate is installed in the base of the jacking mechanism of the side-mounted handcart vacuum circuit breaker; two interlocking levers are installed on the interlocking guide rail rod, The interlocking lever corresponds to the crank arm of the main shaft when the vacuum circuit breaker is in the working position and the test position.

As a preference, the upper interlocking square bar is installed through the fixed bent plate and the side plate of the circuit breaker, the front end of the upper interlocked square bar is installed with a first roller, and the rear end of the upper interlocked square bar is installed on the fixed bent plate through a compression spring. On the board, when the circuit breaker is in the working or testing position, the front end of the upper interlocking square rod and the first roller are located in the guide groove of the interlocking guide rail rod; the front end of the lower interlocking square rod is equipped with a second roller, and the lower interlocking square rod The rear end of the rod is slidingly set in the square hole on the side of the bottom bent plate. When the circuit breaker is in the open state, the front end of the lower interlocking square rod and the second roller are located in the guide groove at the lower end of the interlocking guide rail rod.

As a preference, the interlocking guide rail rod is a square rod, two guide rail grooves are opened in the middle and upper part of the interlocking guide rail rod, corresponding to the test position and the working position of the circuit breaker respectively, and the lower end of the interlocking guide rail rod is provided with guide rail grooves Corresponding to the positions of the front end of the lower interlocking square rod and the second roller, the upper limit plate and the lower limit plate limit the interlocking guide rail rod to a certain position.

Preferably, the screw rod is provided with an elastic pin, and the elastic pin part is exposed to a certain distance from the screw rod, and the position of the elastic pin corresponds to the center position of the lower interlocking square rod.

The beneficial effects of the utility model: solve the problem of anti-mistaken interlocking of the side-mounted handcart type vacuum circuit breaker. The type vacuum circuit breaker provides protection in the application of power distribution miniaturization design.

Description of drawings

The utility model is described in detail below in conjunction with accompanying drawing and specific embodiment;

Fig. 1 is a schematic plan view of the utility model opening state;

Fig. 2 is the side view of Fig. 1;

Fig. 3 and Fig. 4 are three-dimensional schematic diagrams of the opening state of the utility model;

Figure 5 is a schematic plan view of the closing state of the utility model;

Figure 6 is a side view of Figure 5;

Fig. 7 is a structural schematic diagram of the intermediate position of the utility model.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

Referring to Figures 1-7, this specific embodiment adopts the following technical solutions: side-mounted handcart type vacuum circuit breaker interlock mechanism, including interlock guide rail rod 1, upper limit plate 2, lower limit plate 3, circuit breaker side plate 4, Main shaft crank arm 5, screw rod 6, reset compression spring 7, closing electromagnet 8, fixed bent plate 9, main shaft 10, interlocking lever 11, bottom bent plate 12, elastic pin 13, upper interlocking square bar 14, The lower interlocking square bar 15 and rollers, the upper part of the interlocking guide rail bar 1 is located in the square hole of the upper limit plate 2, the lower part of the interlocking guide rail bar 1 is located in the square hole of the lower limit plate 3, and the lower part of the interlocking guide rail bar 1 The lower limit plate 3 is fixed on the bottom side plate of the side-mounted handcart vacuum circuit breaker through the cooperation of the pin, the washer and the reset compression spring 7. The right end of the main shaft 10 is equipped with the main shaft arm 5, and The crank arm 5 rotates within a certain range with the rotation of the main shaft 10. The fixed curved plate 9 is fixedly installed on the circuit breaker side plate 4. The upper interlocking square rod 14 is set through the fixed curved plate 9 and the circuit breaker side plate 4. The upper interlock The front end of the square rod 14 is equipped with a first roller 16-1, and the rear end of the upper interlocking square rod 14 is installed on the fixed curved plate 9 through a compression spring. The closing electromagnet 8 is installed on the fixed curved plate 9, and the bottom curved plate 12 is installed in the base of the jacking mechanism of the side-mounted handcart-type vacuum circuit breaker. There is a square hole on the side of the bottom curved plate 12, so that the lower interlocking square rod 15 slides in the square hole, and the front end of the lower interlocking square rod 15 It is installed together with the second roller 16-2, and a spring is installed in the middle to reset the lower interlocking square bar 15 in a free state. The connecting lever 11 corresponds to the spindle arm 5 when the vacuum circuit breaker is in the working position and the test position; the screw rod 6 is provided with an elastic pin 13, and part of the elastic pin 13 is exposed from the screw rod 6 for a certain distance. The central position of the interlocking square bar 15 is corresponding.

It is worth noting that the interlocking guide rail rod 1 is a square rod and is installed on the right side of the side-mounted handcart type vacuum circuit breaker. The test position corresponds to the working position. The lower end of the interlock guide rail rod 1 has a guide rail groove corresponding to the front end of the lower interlock square rod 15 and the position of the second roller 16-2. The upper limit plate 2 and the lower limit plate 3 will interlock The rail bar 1 is limited to a certain position.

In addition, when the circuit breaker is in the working or testing position, the front end of the upper interlocking square rod 14 and the first roller 16-1 are located in the guide rail groove of the interlocking guide rail rod 1. When the circuit breaker is in the open state, the lower interlocking square rod The front end of the rod 15 and the second roller 16-2 are located in the guide rail groove at the lower end of the interlock guide rail rod 1 .

This specific implementation mode realizes the functions that the circuit breaker cannot be moved up and down when it is closed and cannot be closed when the circuit breaker is moved:

1. When the side-mounted handcart-type vacuum circuit breaker is closed, the main shaft 10 of the circuit breaker drives the main shaft arm 5 to rotate. When the circuit breaker is in the closing position, the front end of the main shaft arm 5 presses down to place the interlocking lever 11, Make it drive the interlocking guide rail rod 1 to move downward, thereby pushing the lower interlocking square rod 15 and the second roller 16-2 in the guide rail groove at the lower end of the interlocking guide rail rod 1 out of the guide rail groove, and make the lower interlocking The square rod 15 moves a certain distance horizontally to the left; after the lower interlocking square rod 15 moves to a certain distance, its rear end restricts the rotation of the elastic pin 13, so that the screw mandrel 6 cannot continue to rotate, hindering its advancement, and making the side The handcart-type vacuum circuit breaker cannot move up and down; after the circuit breaker is opened, all parts reset under the action of the spring, so as to realize the function that the side-mounted handcart-type vacuum circuit breaker cannot be moved up and down when it is closed.

2. When the side-mounted handcart vacuum circuit breaker moves up and down, the upper interlocking square rod 14 and the first roller 16-1 are pushed out from the track groove of the interlocking guide rail rod 1, so that the upper interlocking square rod 14 moves horizontally to a certain position to block the iron core of the closing electromagnet 8 so that it cannot be closed; when the side-mounted handcart vacuum circuit breaker moves to the working position or test position, the upper interlocking square rod 14 and the first roller 16- 1 is reset to the track groove of the interlocking guide rail rod 1 under the action of the spring, which removes the restriction on the closing electromagnet 8, thereby realizing the function that the operating circuit breaker cannot be closed when it moves.

This specific implementation has a reasonable structural design and high reliability, which solves the problem of anti-mistaken interlocking of the side-mounted handcart vacuum circuit breaker, and provides a guarantee for the application of the side-mounted handcart vacuum circuit breaker in the miniaturization design of power distribution. It has broad market application prospects.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The side-mounted handcart type vacuum circuit breaker interlock mechanism is characterized in that it includes an interlock guide rail rod (1), an upper limit plate (2), a lower limit plate (3), a circuit breaker side plate (4), and a main shaft Knuckle arm (5), screw rod (6), return pressure spring (7), closing electromagnet (8), fixed bent plate (9), main shaft (10), interlocking lever (11), bottom bent plate (12), elastic pin (13), upper interlocking square rod (14), lower interlocking square rod (15) and rollers, the right side of the side-mounted handcart vacuum circuit breaker is equipped with an interlocking guide rail rod (1) , the upper part of the interlocking guide rail rod (1) is located in the square hole of the upper limit plate (2), the lower part of the interlocking guide rail rod (1) is located in the square hole of the lower limit plate (3), and the interlocking guide rail rod (1) The lower part of the main shaft (10) is mounted on the lower limit plate (3) through pins, washers and the reset compression spring (7). The fixed curved plate (9), the upper interlocking square rod (14) is set through the fixed curved plate (9) and the circuit breaker side plate (4), and the front end of the upper interlocking square rod (14) is equipped with a first roller (16- 1), the rear end of the upper interlocking square rod (14) is installed on the fixed curved plate (9) through a compression spring, the closing electromagnet (8) is installed on the fixed curved plate (9), and the lower interlocking square rod ( The rear end of 15) is slidingly arranged on the square hole on the side of the bottom curved plate (12), the front end of the lower interlocking square bar (15) is equipped with a second roller (16-2), and the screw mandrel (6) is provided with an elastic Pin (13), two interlocking connecting pulls (11) are installed on the interlocking guide rail bar (1). 2. The interlocking mechanism of the side-mounted handcart type vacuum circuit breaker according to claim 1, characterized in that the lower limit plate (3) is fixed on the bottom side plate of the side-mounted handcart type vacuum circuit breaker. 3. The side-mounted handcart type vacuum circuit breaker interlocking mechanism according to claim 1, characterized in that the center position of the upper interlocking square rod (14) and the iron core of the closing electromagnet (8) The positions are consistent, and the front end and the first roller (16-1) of the upper interlocking square bar (14) are positioned in the guide rail groove of the interlocking guide rail bar (1). 4. The side-mounted handcart type vacuum circuit breaker interlock mechanism according to claim 1, characterized in that the front end of the lower interlock square bar (15) and the second roller (16-2) are located at the interlock In the guide rail groove at the lower end of the guide rail rod (1). 5. The interlocking mechanism of the side-mounted handcart type vacuum circuit breaker according to claim 1, characterized in that the bottom bent plate (12) is installed in the base of the jacking mechanism of the side-mounted handcart type vacuum circuit breaker . 6. The interlocking mechanism of side-mounted handcart type vacuum circuit breaker according to claim 1, characterized in that the position of the elastic pin (13) corresponds to the center position of the lower interlocking square bar (15).