A circuit breaker piston structure

Abstract

This utility model discloses a circuit breaker piston structure, belonging to the technical field of circuit breaker pistons. It includes a cylinder body, with a circular rod installed inside one side of the cylinder body. A protective mechanism is provided in the middle of the circular rod to increase the sealing performance during its movement. A motion mechanism is located at one end of the circular rod to increase the stability of the cylinder body during movement. By creating a movable groove at the end of the cylinder body and providing a sliding ring and a retaining ring that fit together on the circular rod, the path for airflow is increased, reducing the possibility of air ingress. The tight fit between the sliding ring and the retaining ring also effectively prevents oil leakage, improving the circuit breaker's performance. By increasing the sealing path and improving sealing performance, the problems of air leakage and oil leakage are effectively solved, ensuring the stability of piston movement and the reliability of the circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker piston technology, and in particular to a circuit breaker piston structure. Background Technology

[0002] A circuit breaker piston typically consists of a piston body, piston rings, and seals. The piston moves within the circuit breaker's working cylinder, and the opening and closing operations of the circuit breaker are achieved by changing the oil pressure in the cylinder. The piston's structural design needs to comprehensively consider factors such as its sealing performance, wear resistance, and smooth movement.

[0003] The existing insufficient sealing between the piston and the working cylinder may lead to oil leakage, affecting the performance and stability of the circuit breaker. The leaked oil may also pollute the surrounding environment. In addition, the piston stroke is generally fixed and cannot be changed between long and short strokes, which limits its application range and restricts its scope. Utility Model Content

[0004] The purpose of this invention is to provide a circuit breaker piston structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The cylinder body has a round rod installed inside one side, and a protective mechanism is provided in the middle of the round rod to increase the sealing when the round rod moves. A piston is installed inside the cylinder body.

[0007] A motion mechanism is provided at one end of a round rod to increase the stability of the cylinder body during movement.

[0008] Preferably, the cylinder body has a placement groove inside and a movable groove in the middle.

[0009] Preferably, the protective mechanism includes two sliding rings, one end of which is connected to a fixed ring, and the other end of which is provided with a retaining ring.

[0010] Preferably, one side of the retaining ring is connected to the inner wall of the movable groove, and the sliding ring is slidably connected to the inner wall of the movable groove.

[0011] Preferably, the motion mechanism includes a bending rod, and two fixing blocks are fixedly sleeved in the middle of the bending rod.

[0012] Preferably, the fixing block is fitted with a shell.

[0013] Preferably, the other end of the bent rod is connected to a connector one, and a connector two is provided on one side of the connector one.

[0014] Preferably, one end of the second connector is connected to the inner wall of the placement groove, and the second connector is engaged with the first connector.

[0015] Preferably, the motion mechanism further includes a connecting rod, one side of which is movably connected to one end of the round rod.

[0016] Preferably, the other two ends of the connecting rod are connected to one side of each of the two housings.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By creating a movable groove at the end of the cylinder body and installing a sliding ring and a retaining ring on the rod that fit together, the path required for airflow is increased, reducing the possibility of air ingress. The tight fit between the sliding ring and the retaining ring also effectively prevents oil leakage, improving the circuit breaker's performance. By increasing the sealing path and improving sealing performance, the problems of air and oil leakage are effectively solved, ensuring the stability of piston movement and the reliability of the circuit breaker.

[0019] By setting a round rod to push the connecting rod, the outer shell is moved back and forth, and relative rotation is generated between the outer shell and the fixed block. Two outer shells are set on the outside of the two fixed blocks respectively, and baffles are set on both sides of the outer shell. The motion stroke of the entire motion mechanism can be changed by changing the size of the bending rod. It can be replaced according to the actual application needs, and has a wider range of applications. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the retaining ring of this utility model;

[0023] Figure 3 This is a schematic diagram of the protective mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the motion mechanism of this utility model.

[0025] Drawing number explanation: 1. Cylinder body; 2. Placement groove; 3. Movable groove; 4. Protective mechanism; 41. Sliding ring; 42. Fixed ring; 43. Retaining ring; 5. Round rod; 6. Motion mechanism; 61. Bending rod; 62. Fixing block; 63. Outer shell; 64. Connector 1; 65. Connector 2; 66. Connecting rod. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0029] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0030] Please see Figures 1-4A circuit breaker piston structure includes a cylinder body 1. A round rod 5 is installed inside one side of the cylinder body 1. A protective mechanism 4 is provided in the middle of the round rod 5 to increase the sealing of the round rod 5 during movement. A placement groove 2 is opened inside the cylinder body 1, and a piston 7 is installed inside the cylinder body 1. A movable groove 3 is opened in the middle of the cylinder body 1. The protective mechanism 4 includes two sliding rings 41. One end of the sliding ring 41 is connected to a fixed ring 42, and the other end of the sliding ring 41 is provided with a retaining ring 43. One side of the retaining ring 43 is connected to the inner wall of the movable groove 3, and the sliding ring 41 is slidably connected to the inner wall of the movable groove 3. When the round rod 5 performs its reciprocating piston movement in the precise internal space of the cylinder body 1, its movement trajectory is strictly limited to the axial range of the cylinder body 1. During this process, the end of the round rod 5 (or piston head) moves back and forth at the end of the cylinder body 1 (i.e., the open end of the cylinder body 1). The end of the cylinder body 1 has a movable groove 3, which not only provides the necessary space for the smooth movement of the rod 5, but may also serve as a channel for oil circulation, gas discharge or other functions.

[0031] To ensure the stability and sealing of the movement of the rod 5 within the cylinder body 1, a sliding ring 41 is specially configured. The inner wall of the sliding ring 41 forms a tight fit with the interior of the cylinder body 1 or the exterior of the retaining ring 43 on the rod 5. This fit relies not only on high-precision machining and assembly processes but also on the high-performance materials used in the sliding ring 41 and retaining ring 43. These materials possess excellent wear resistance, corrosion resistance, and elasticity to ensure a stable sealing effect even under prolonged, high-load operating conditions.

[0032] It is worth noting that the tight fit between the sliding ring 41 and the retaining ring 43 is not only to prevent oil leakage, but also to optimize the hydrodynamic characteristics during piston movement. By increasing the length and complexity of the path required for airflow, this design effectively reduces the possibility of outside air entering the cylinder body 1 through tiny gaps during piston movement. The extended and complex airflow path forces any air attempting to enter through the gaps to traverse a more tortuous path, thereby significantly reducing the risk of air leakage.

[0033] Furthermore, the tight fit between the sliding ring 41 and the retaining ring 43 helps prevent oil leakage from the tiny gap between the piston and the cylinder body 1 under high pressure or high speed conditions. Oil leakage not only leads to a decrease in circuit breaker performance but can also pollute the surrounding environment. Therefore, this design improves circuit breaker performance while also reflecting considerations for environmental protection.

[0034] The protective mechanism 4 is located on the right side of the cylinder body 1, and the sliding ring 41 moves inside the movable groove 3.

[0035] In summary, when the circular rod 5 moves like a piston inside the cylinder body 1, the tight fit between the sliding ring 41 and the retaining ring 43 effectively reduces the potential risks of air and oil leakage, and significantly improves the overall performance and reliability of the circuit breaker. This design not only reflects a profound understanding of mechanical seal technology, but also demonstrates the advanced level of craftsmanship required to ensure stable operation of equipment under high-pressure and high-speed conditions.

[0036] Furthermore, the mechanism includes a motion mechanism 6, which is located at one end of the round rod 5 to increase the stability of the cylinder body 1 during movement. The motion mechanism 6 includes a bent rod 61, with two fixed blocks 62 fixedly fitted in the middle. A housing 63 is fitted around each fixed block 62. A connecting piece 64 is connected to the other end of the bent rod 61, and a connecting piece 65 is provided on one side of the connecting piece 64. One end of the connecting piece 65 is connected to the inner wall of the placement groove 2, and the connecting piece 65 engages with the connecting piece 64. The motion mechanism 6 also includes a connecting rod 66, one side of which is movably connected to one end of the round rod 5. The other two ends of the connecting rod 66 are respectively connected to one side of the two housings 63. During the movement of the round rod 5, its forward and backward movement not only directly drives the corresponding forward and backward movement of the connecting rod 66, but also, through this chain reaction, further drives the forward and backward movement of the housings 63. The outer casing 63 is cleverly fitted onto the outside of the fixed block 62, and during movement, it generates flexible relative rotation with the fixed block 62. This rotation mechanism allows the fixed block 62 to rotate back and forth around the center point of the connecting member 64, thus perfectly completing the entire movement cycle of the piston. The bent rod 61 has a certain degree of elasticity.

[0037] Two outer shells 63 are tightly fitted onto the outside of two fixed blocks 62. Baffles are provided on both sides of the outer shells 63, which ensure that the outer shells 63 are completely and securely fitted onto the outside of the fixed blocks 62 during rotation.

[0038] Furthermore, connector 2 65 is installed inside the placement groove 2, forming multiple tight contact surfaces with connector 1 64. It is worth noting that the internal environment of the piston movement is fully lubricated, ensuring smooth operation between the various components. A large amount of lubricating oil is also applied between the contact surfaces of connector 1 64 and connector 2 65.

[0039] In summary, the movement of the round rod 5, through a series of chain reactions, not only achieves flexible rotation between the outer shell 63 and the fixed block 62, but also achieves large-area contact between the connecting part 1 64 and the connecting part 2 65, as well as sufficient lubrication measures.

[0040] The motion mechanism 6 is located on the left side of the cylinder body 1 and moves inside it. The motion mechanism 6 rotates in a circle around the horizontal axis where the connecting piece 64 is located. The motion mechanism 6 changes the stroke of the piston 7, making the stroke shorter. This device moves by the oil pressure inside the cylinder body 1.

[0041] Specifically, the stroke of the piston 7 can be changed by replacing the bending rod 61. When the bending position of the bending rod 61 is longer, the piston stroke is longer, which can increase the mechanical strength of the piston and cylinder, enabling them to withstand the huge impact force and vibration generated during the breaking process. When the bending position of the bending rod 61 is shorter, the piston movement speed can be increased, energy consumption can be reduced, and the risk of failure caused by complex movement can be reduced.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A circuit breaker piston structure, comprising a cylinder body (1), characterized in that: A round rod (5) is installed inside one side of the cylinder body (1). A protective mechanism (4) is provided in the middle of the round rod (5) to increase the sealing of the round rod (5) during movement. A piston (7) is installed inside the cylinder body (1). Motion mechanism (6) is provided at one end of the round rod (5) to increase the stability of the cylinder body (1) during movement.

2. The circuit breaker piston structure according to claim 1, characterized in that: The cylinder body (1) has a placement groove (2) inside and a movable groove (3) in the middle.

3. The circuit breaker piston structure according to claim 2, characterized in that: The protective mechanism (4) includes two sliding rings (41), one end of which is connected to a fixed ring (42), and the other end of which is provided with a retaining ring (43).

4. A circuit breaker piston structure according to claim 3, characterized in that: One side of the retaining ring (43) is connected to the inner wall of the movable groove (3), and the sliding ring (41) is slidably connected to the inner wall of the movable groove (3).

5. A circuit breaker piston structure according to claim 1, characterized in that: The motion mechanism (6) includes a bending rod (61), and two fixing blocks (62) are fixedly sleeved in the middle of the bending rod (61).

6. A circuit breaker piston structure according to claim 5, characterized in that: The fixing block (62) is covered with a shell (63).

7. A circuit breaker piston structure according to claim 6, characterized in that: The other end of the bent rod (61) is connected to a connector one (64), and a connector two (65) is provided on one side of the connector one (64).

8. A circuit breaker piston structure according to claim 7, characterized in that: One end of the second connector (65) is connected to the inner wall of the placement groove (2), and the second connector (65) is engaged with the first connector (64).

9. A circuit breaker piston structure according to claim 8, characterized in that: The motion mechanism (6) also includes a connecting rod (66), one side of which is connected to the piston (7), and one end of the piston (7) is movably connected to one end of the round rod (5).

10. A circuit breaker piston structure according to claim 9, characterized in that: The other two ends of the connecting rod (66) are respectively connected to one side of the two outer shells (63).

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