Reliable switch opening mechanism

Abstract

The utility model discloses a reliable switch opening mechanism, comprising a switch opening part which comprises a main shaft, a handle operation rod, a push-pull rod, a movable spring and a disconnecting link; a handle operating rod is fixed to the middle of the lower end of the spindle, an opening penetrates through the middle of one end of the handle operating rod, and a push-pull rod is fixedly arranged on one side of the lower portion of the outer surface of the spindle. The disconnecting link comprises a connecting block, an upper brake block, a lower brake block, a telescopic spring and a guide ball; an upper brake block is fixed to the upper portion of one end of the connecting block, a lower brake block is fixed to the lower portion of one end of the connecting block, telescopic springs are arranged on the inner side of the upper brake block and the inner side of the lower brake block at equal intervals, guide balls are fixed to one ends of the telescopic springs, the movable spring is arranged in front of the main shaft, and a disconnecting link is fixed to one side of the upper portion of the outer surface of the main shaft. According to the utility model, the push-pull rod is short, the operation is reduced, the opening of the switch can be conveniently completed in a time-saving and labor-saving manner, and the use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment switches, in particular to a reliable switch opening mechanism. Background Art

[0002] An electrical equipment switch is a mechanical device used to control the ON / OFF state of a circuit, and is used to operate or switch the power-on and power-off states of a circuit. Isolating switches, earthing switches, etc. are electrical equipment switches. Currently, the mechanisms of isolating switches and earthing switches use springs to push the knife switches to the opening position after the spring passes the dead point. The earthing switch mechanism and the isolating switch mechanism do not act in advance, resulting in insufficient applicability and affecting the effect of application. Therefore, it is necessary to provide a switch opening mechanism that can act in advance to meet usage requirements. Utility Model Content

[0003] The purpose of the present utility model is to provide a reliable switch tripping mechanism to solve the problem raised in the above background technology that the current isolating switch and earthing switch mechanism use the spring to push the knife switch to the knife tripping position after the spring passes the dead point, and the earthing switch mechanism and the isolating switch mechanism do not act in advance, resulting in insufficient applicability and affecting the application effect.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model is a reliable switch opening mechanism, comprising:

[0006] The switch opening part includes a main shaft, a handle operating rod, a push-pull rod, a movable spring and a knife switch; a handle operating rod is fixed to the middle part of the lower end of the main shaft, an opening is passed through the middle part of one end of the handle operating rod, a push-pull rod is fixed to one side of the lower part of the outer surface of the main shaft, the movable spring is arranged in front of the main shaft, and a knife switch is fixed to one side of the upper part of the outer surface of the main shaft.

[0007] Furthermore, the switch disconnecting part also includes a first connecting frame, a second connecting frame and a movable column; a second connecting frame is provided on one side of the first connecting frame, and a movable column is fixed to the upper part of the inner side of the first connecting frame, and one end of the movable column extends through the upper part of the inner side of the second connecting frame.

[0008] Furthermore, the outer surface of the movable column is sleeved with the movable spring, and one end of the movable spring is fixed to one side of the upper portion of the first connecting frame.

[0009] Furthermore, screw holes are provided through the lower parts of the first connecting frame and the second connecting frame, and extend into the inner wall of the switch housing.

[0010] Furthermore, the knife gate includes a connecting block, an upper gate block, a lower gate block, a telescopic spring and a guide ball; the upper gate block is fixed to the upper part of one end of the connecting block, and the lower gate block is fixed to the lower part of one end of the connecting block, and telescopic springs are equidistantly provided on the inner sides of the upper gate block and the lower gate block, and a guide ball is fixed to one end of the telescopic spring.

[0011] Furthermore, openings are equidistantly provided on the inner sides of the upper brake block and the lower brake block, and the other end of the telescopic spring is fixed to the inner wall of the opening, and the guide ball portion extends out of the opening.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. The utility model shortens the push-pull rod in the prior art to reduce the operation of the entire opening of the switch. When the handle operating lever is used to apply force to the main shaft, the movable spring and the knife switch can be synchronously linked to move to advance the operation. There is no need to wait until the movable spring reaches the compression dead point. The opening process can be completed before it reaches the dead point, thereby improving applicability and meeting usage requirements.

[0014] 2. Based on the first beneficial effect, during the opening and closing process of the knife switch, the inner sides of the upper and lower gate blocks of the knife switch are connected to the guide balls using movable springs. While meeting the requirements of the opening and closing of the switch, the greater friction during the opening and closing process can be reduced, saving time and effort and making it convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is the appearance diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the knife switch of the present utility model;

[0018] Figure 3 This is a structural diagram of the guide ball of the present utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Push-pull rod; 2. Main shaft; 3. Movable spring; 4. Handle operating lever; 5. Knife switch; 51. Connecting block; 52. Upper switch block; 53. Lower switch block; 54. Movable spring; 55. Guide ball; 56. Opening; 6. First connecting frame; 7. Second connecting frame; 8. Movable column. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0024] See also Figure 1-3 As shown, this embodiment is a reliable switch opening mechanism, including:

[0025] The switch opening part includes a main shaft 2, a handle operating rod 4, a push-pull rod 1, a movable spring 3 and a knife switch 5; a handle operating rod 4 is fixed to the middle of the lower end of the main shaft 2, and an opening is passed through the middle of one end of the handle operating rod 4. A push-pull rod 1 is fixed to one side of the lower part of the outer surface of the main shaft 2. The movable spring 3 is arranged in front of the main shaft 2, and a knife switch 5 is fixed to one side of the upper part of the outer surface of the main shaft 2;

[0026] The main shaft 2 is used to install the push-pull rod 1. When the force is applied, the push-pull rod 1 can be linked to operate to act on the movable spring 3 to open and close the knife switch 5. The push-pull rod 1 transmits the force. The movable spring 3 satisfies the opening and closing of the knife switch 5 and can recover automatically by its own elastic force, saving time and effort. The opening and closing of the knife switch 5 completes the power on and off of the electrical equipment.

[0027] The switch opening part also includes a first connecting frame 6, a second connecting frame 7 and a movable column 8; the second connecting frame 7 is provided on one side of the first connecting frame 6, and the movable column 8 is fixed to the upper part of the inner side of the first connecting frame 6, and one end of the movable column 8 extends through the upper part of the inner side of the second connecting frame 7;

[0028] The first connecting frame 6 fixes one end of the movable column 8 and helps to form a resistance force on one end of the movable spring 3. The second connecting frame 7 satisfies the expansion and contraction of one end of the movable column 8 and acts on the movable spring 3 to compress it, thereby completing the opening of the knife switch 5.

[0029] The outer surface of the movable column 8 is sleeved with the movable spring 3, and one end of the movable spring 3 is fixed to one side of the upper portion of the first connecting frame 6;

[0030] The lower parts of the first connecting frame 6 and the second connecting frame 7 are penetrated by screw holes and extend into the inner wall of the switch housing;

[0031] The screw holes on the first connecting frame 6 are fixed to the switch housing using external bolts, and the screw holes on the second connecting frame 7 are connected to the torsion spring pre-installed on the switch housing using external bolts to allow the second connecting frame 7 to adjust its angle and smoothly operate on the movable spring 3 to compress it.

[0032] Working principle: When opening the switch, first apply a force to the handle operating rod 4. Under the application of the force, the main shaft 2 rotates and the push-pull rod 1 rotates in conjunction with the push-pull rod 1. After the push-pull rod 1 acts on the second connecting frame 7, the second connecting frame 7 is connected by a torsion spring, which can cause the angle of the second connecting frame 7 to change and act on the movable spring 3 to compress the movable spring 3. Under the above-mentioned application of the force by the handle operating rod 4, the movable spring 3 and the knife switch 5 move synchronously, which can make the knife switch 5 operate in advance. Subsequently, under the continuous application of force, the opening process can be completed before the movable spring 3 reaches the dead point.

[0033] In this step, the push-pull rod 1 is shortened to shorten the operation, so that the knife switch 5 can be moved in advance, which improves the applicability and facilitates use.

[0034] See also Figure 1-3 As shown, this embodiment is based on the above-mentioned embodiment 1, and the knife gate 5 includes a connecting block 51, an upper gate block 52, a lower gate block 53, a telescopic spring 54 and a guide ball 55; the upper gate block 52 is fixed to the upper part of one end of the connecting block 51, and the lower gate block 53 is fixed to the lower part of one end of the connecting block 51. Telescopic springs 54 are equidistantly provided on the inner sides of the upper gate block 52 and the lower gate block 53, and a guide ball 55 is fixed to one end of the telescopic spring 54;

[0035] The connecting block 51 is used to fix the upper and lower gate blocks 52 and 53. The contact between the inner sides of the upper and lower gate blocks 52 and 53 and the external power supply disk is used to close the circuit breaker, and vice versa. The telescopic spring 54 is used to fix the guide ball 55. The guide ball 55 can be used to move the upper and lower gate blocks 52 and 53 with low friction when opening and closing the circuit breaker.

[0036] The inner sides of the upper and lower brake blocks 52 and 53 are equidistantly provided with openings 56 , and the other ends of the telescopic springs 54 are fixed to the inner walls of the openings 56 , with the guide balls 55 partially extending out of the openings 56 ;

[0037] The opening 56 is used to structurally fix the movable spring 3;

[0038] Working principle: When the knife switch 5 is opened and closed, the upper and lower gate blocks 52 and 53 are guided by multiple guide balls 55 on the inside. The guide balls 55 and the telescopic spring 54 are electrically conductive, ensuring smooth electrical connection between the knife switch 5 and the external power supply panel.

[0039] This step can complete the opening and closing of the switch with low friction, saving time and effort and meeting usage requirements.

[0040] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A reliable switch opening mechanism, characterized in that: include: The switch opening part comprises a main shaft (2), a handle operating rod (4), a push-pull rod (1), a movable spring (3) and a knife switch (5); a handle operating rod (4) is fixed to the middle of the lower end of the main shaft (2), an opening is provided through the middle of one end of the handle operating rod (4), a push-pull rod (1) is fixed to one side of the lower part of the outer surface of the main shaft (2), the movable spring (3) is arranged in front of the main shaft (2), and a knife switch (5) is fixed to one side of the upper part of the outer surface of the main shaft (2).

2. A reliable switch opening mechanism according to claim 1, characterized in that: The switch opening portion further comprises a first connecting frame (6), a second connecting frame (7) and a movable column (8); the second connecting frame (7) is provided on one side of the first connecting frame (6), and the movable column (8) is fixed to the upper portion of the inner side of the first connecting frame (6), and one end of the movable column (8) extends through the upper portion of the inner side of the second connecting frame (7).

3. A reliable switch opening mechanism according to claim 2, characterized in that: The outer surface of the movable column (8) is sleeved with the movable spring (3), and one end of the movable spring (3) is fixed to one side of the upper portion of the first connecting frame (6).

4. A reliable switch opening mechanism according to claim 2, characterized in that: The lower parts of the first connecting frame (6) and the second connecting frame (7) are penetrated by screw holes and extend into the inner wall of the switch housing.

5. A reliable switch opening mechanism according to claim 1, characterized in that: The knife gate (5) comprises a connecting block (51), an upper gate block (52), a lower gate block (53), a telescopic spring (54) and a guide ball (55); the upper gate block (52) is fixed to the upper part of one end of the connecting block (51), and the lower gate block (53) is fixed to the lower part of one end of the connecting block (51); telescopic springs (54) are equidistantly provided on the inner sides of the upper gate block (52) and the lower gate block (53), and a guide ball (55) is fixed to one end of the telescopic spring (54).

6. A reliable switch opening mechanism according to claim 5, characterized in that: The inner sides of the upper brake block (52) and the lower brake block (53) are equidistantly provided with openings (56), and the other end of the telescopic spring (54) is fixed to the inner wall of the opening (56), and the guide ball (55) partially extends out of the opening (56).

Images