Air break anti-misoperation fixed connecting piece structure

Abstract

This utility model discloses a fixed connection structure for preventing misoperation of a circuit breaker, relating to the field of power safety technology. The utility model includes a fixed connection body; the fixed connection body is provided with an upper positioning surface, a lower positioning surface, a front positioning surface, and a rear positioning surface; the upper and lower positioning surfaces are respectively located at the top and bottom of the front end of the fixed connection body and are vertically arranged with the fixed connection body. The upper, lower, front, and rear positioning surfaces connect to form a covering structure surrounding the outer contour of the circuit breaker portion; the rear positioning surface is located at the tail of the fixed connection body, and the rear positioning surface forms an 88° angle with the tail of the fixed connection body. This utility model, through the multi-directional covering structure formed by the fixed connection body, achieves stable positioning and reliable fixation of the circuit breaker body, significantly improving the overall stability and long-term operational reliability of the device. The padlock hole further enhances the safety of electrical operation.

Description

Technical Field

[0001] This utility model belongs to the field of power safety technology, and in particular relates to the structure of a fixed connection component for preventing misoperation of circuit breakers. Background Technology

[0002] In the fields of power systems and industrial electrical control, air circuit breakers (referred to as "circuit breakers") are important circuit protection devices widely used in distribution boxes, control cabinets, and various electrical equipment. They are primarily used to automatically cut off power in the event of overload, short circuit, or other faults, ensuring the safety of equipment and personnel. However, during routine maintenance, repairs, or equipment shutdowns, to prevent unauthorized personnel or operators from accidentally closing the circuit breaker, which could lead to electric shock, equipment damage, or even major safety accidents, effective anti-misoperation locking measures must be implemented for the circuit breaker handle. Traditional methods for preventing misoperation often employ simple locks, locking plates, or padlock brackets made of plastic or metal, which have several technical drawbacks. On the one hand, most devices are simply installed on the surface of the circuit breaker using a simple snap-fit ​​or single-point fixing method, resulting in poor structural stability. They are prone to loosening or even falling off due to vibration or external forces, failing to provide continuous and reliable locking protection. On the other hand, existing locking structures often lack precise positioning and coordination with the circuit breaker body. Installation position deviations can easily lead to locking failure, and some designs do not fully consider the spatial relationship between the handle's movement trajectory and the locking element, posing a safety hazard of "being able to forcibly close the circuit even when locked," thus weakening the effectiveness of the locking.

[0003] To address these issues, we have developed a fixed connection structure for preventing circuit breaker misoperation. Utility Model Content

[0004] The purpose of this utility model is to provide a fixed connection structure for preventing misoperation of circuit breakers. By setting a multi-directional covering structure consisting of an upper positioning surface, a lower positioning surface, a front positioning surface, and a rear positioning surface, the problem of loosening, displacement, or detachment of existing fixed connections caused by vibration, external force, or accidental contact during use is solved.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a fixed connector structure for preventing misoperation of a circuit breaker, comprising a fixed connector body; the fixed connector body is provided with an upper positioning surface, a lower positioning surface, a front positioning surface, and a rear positioning surface; the upper positioning surface and the lower positioning surface are respectively located at the top and bottom of the front end of the fixed connector body, and are vertically arranged with the fixed connector body; the upper positioning surface, the lower positioning surface, the front positioning surface, and the rear positioning surface are connected to form a covering structure surrounding the outer contour of the circuit breaker portion; the rear positioning surface is located at the tail of the fixed connector body, and the rear positioning surface forms an 88° angle with the tail of the fixed connector body;

[0007] A padlock hole is provided at the middle of the front part of the fixed connector body, and the position of the padlock hole corresponds to the movement trajectory area of ​​the circuit breaker handle when it is in the off position.

[0008] The present invention is further configured such that the entire body of the fixed connector is formed of stainless steel material through sheet metal bending process.

[0009] The present invention is further configured such that the upper positioning surface and the front positioning surface are integrally formed, and the upper positioning surface and the front positioning surface are bent to form a 90° angle.

[0010] The present invention is further configured such that the padlock hole protrudes outward relative to the circuit breaker body, forming a physical blocking structure on the adjacent operating area, and when the circuit breaker handle is in the closed position, the handle body interferes with the area where the padlock hole is located during the upward rotation, preventing the padlock component from passing through the padlock hole to achieve locking.

[0011] The present invention is further configured such that the rear positioning surface extends inside the circuit breaker, and the rear positioning surface is fixed to the internal structure of the circuit breaker by fasteners.

[0012] The present invention is further configured such that the fixed connector bodies are arranged side by side, and the padlock hole area at the front end of the adjacent fixed connector bodies forms the protective area of ​​the circuit breaker handle.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model achieves stable positioning and reliable fixation of the circuit breaker body by setting a multi-directional covering structure composed of an upper positioning surface, a lower positioning surface, a front positioning surface and a rear positioning surface. It effectively prevents the fixed connecting parts from loosening, displacement or falling off due to vibration, external force or accidental collision during use, and significantly improves the overall stability and long-term reliability of the device.

[0015] 2. The padlock hole of this utility model is set in the movement trajectory area of ​​the circuit breaker handle when it is in the off position, and protrudes outward to form a physical blocking structure. When the padlock is inserted, it can effectively lock the handle to prevent accidental closing and greatly enhance the safety of electrical operation.

[0016] The area where the padlock hole is located is structurally interfering with the closing movement path of the circuit breaker handle. When the handle attempts to turn upward from the open position, if the padlock is not released, the handle will not be able to complete the closing action. This achieves the mandatory mechanical interlock function of "cannot close if not unlocked", fundamentally preventing serious safety accidents such as closing with the ground wire or accidental power supply. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a front view of the overall structure of the fixed connection component for preventing misoperation of the circuit breaker.

[0019] Figure 2 This is a schematic diagram of the rear part of the overall structure of the fixed connection component for preventing misoperation of the circuit breaker.

[0020] Figure 3 This is a top view of the overall structure of the circuit breaker anti-misoperation fixed connection structure.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 100. Fixed connector body; 101. Upper positioning surface; 102. Lower positioning surface; 103. Front positioning surface; 104. Rear positioning surface; 105. Padlock hole. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0024] Please see Figure 1-3 This utility model relates to a fixed connection structure for preventing misoperation of an air circuit breaker, comprising a fixed connection body 100, which is integrally formed from 304 stainless steel through sheet metal bending. The fixed connection body 100 is provided with an upper positioning surface 101, a lower positioning surface 102, a front positioning surface 103, and a rear positioning surface 104. The upper positioning surface 101 and the lower positioning surface 102 are respectively located at the top and bottom of the front end of the fixed connection body 100, and are vertically aligned with the fixed connection body 100. The upper positioning surface 101, lower positioning surface 102, front positioning surface 103, and rear positioning surface 104 are connected to form a covering structure surrounding the outer contour of the breaker portion; the rear positioning surface 104 is located at the tail of the fixed connector body 100, and the rear positioning surface 104 forms an 88° angle with the tail of the fixed connector body 100; a padlock hole 105 is provided at the middle of the front part of the fixed connector body 100, and the position of the padlock hole 105 corresponds to the movement trajectory area of ​​the breaker handle when it is in the open position.

[0025] The fixed connector body 100 provided in this embodiment is formed entirely of 304 stainless steel through sheet metal bending, possessing high strength, corrosion resistance, and good forming precision, ensuring long-term stable operation in complex electrical environments. Its structure, consisting of an upper positioning surface 101, a lower positioning surface 102, a front positioning surface 103, and a rear positioning surface 104, forms a wraparound structure surrounding the outer contour of the circuit breaker, achieving precise positioning and limiting of the circuit breaker body in four directions (up, down, front, and back), effectively preventing loosening or displacement of the fixed connector after installation. Specifically, the upper positioning surface 101 and the front positioning surface 103 are integrally formed by a 90° bend, fitting snugly against the corner structure of the top and front side of the circuit breaker, enhancing connection stability. The rear positioning surface 104 is set at an 88° angle to the tail of the fixed connector body 100 and extends into the interior of the circuit breaker, securely connected to the internal structure of the circuit breaker via fasteners. This not only improves the overall rigidity of the installation but also avoids the risk of external disassembly, enhancing anti-theft and anti-vandalism capabilities.

[0026] The padlock hole 105, located at the center of the front of the fixed connector body 100, precisely corresponds to the movement trajectory area of ​​the circuit breaker handle when it is in the open position. When the handle is in the open state and the padlock is inserted, mechanical locking is achieved to prevent accidental closing. Simultaneously, the padlock hole 105 protrudes outward, forming a physical obstruction to the adjacent operating area. When the circuit breaker handle attempts to close from the open position, the handle body will spatially interfere with the area where the padlock hole 105 is located during rotation, thus structurally preventing the handle from completing the closing action. Even without the padlock, it still serves as a certain degree of anti-misoperation warning.

[0027] Specifically, the padlock hole 105 protrudes outward relative to the circuit breaker body, forming a physical blocking structure for the adjacent operating area. When the circuit breaker handle is in the closed position, the handle body interferes with the area where the padlock hole 105 is located during upward rotation, preventing the padlock from passing through the padlock hole 105 to achieve locking. The fixed connector bodies 100 are arranged side by side, and the areas of the padlock holes 105 at the front ends of adjacent fixed connector bodies 100 form a protective zone for the circuit breaker handle. This continuous protective zone is suitable for multi-circuit circuit breaker power distribution systems, enabling unified locking and centralized management.

[0028] Furthermore, the rear positioning surface 104 extends into the air switch and is fixed to the internal structure of the air switch by fasteners; the upper positioning surface 101 is integrally formed with the front positioning surface 103, and the upper positioning surface 101 and the front positioning surface 103 are bent to form a 90° angle.

[0029] The operation process of this embodiment is as follows: First, before installation, confirm that the circuit breaker is in a safe state with the power completely off and the handle in the "OFF" position; then, insert the fixing connector body 100 from the front end of the circuit breaker, so that its rear positioning surface 104 is accurately inserted into the preset installation position inside the circuit breaker, and use fasteners (such as screws or clips) to firmly fix the rear positioning surface 104 to the internal structure of the circuit breaker to ensure reliable connection; during this process, the upper positioning surface 101, the lower positioning surface 102 and the front positioning surface 103 are closely fitted with the top, bottom and front side of the circuit breaker body, respectively, forming a covering structure around the outer contour, realizing multi-directional limiting in the upper, lower and front and back directions, and preventing the fixing connector from loosening or misaligning; after the fixing connector body 100 is installed firmly, check whether the circuit breaker handle is still in the OFF position, and confirm that the movement trajectory of the handle is consistent with the padlock hole 1. The position of 05 is correct; at this time, the padlock beam is passed through the padlock hole 105 to complete the mechanical locking operation, thereby physically restricting any operation of the handle to prevent unauthorized or misoperation-induced closing accidents; if power needs to be restored, authorized personnel must use a key to open the padlock and remove the lock before operating the handle to close the circuit; during the closing process, when the handle is turned upward from the disconnected position, its body will spatially interfere with the protruding padlock hole 105 area. If the padlock is not removed, the handle cannot complete the closing action, thus forming a forced interlock protection in the structure; for multi-circuit power distribution systems, multiple fixed connectors can be installed in parallel, and the padlock holes 105 at the front end of each connector together form a unified protective locking area, realizing simultaneous locking and centralized management of multiple circuit breakers, ensuring electrical safety during maintenance or repair work.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An air switch anti-misoperation fixed connecting piece structure, comprising a fixed connecting piece body (100); characterized in that: The fixed connector body (100) is provided with an upper positioning surface (101), a lower positioning surface (102), a front positioning surface (103), and a rear positioning surface (104); the upper positioning surface (101) and the lower positioning surface (102) are respectively located at the top and bottom of the front end of the fixed connector body (100) and are vertically arranged with the fixed connector body (100); the upper positioning surface (101), the lower positioning surface (102), the front positioning surface (103), and the rear positioning surface (104) are connected to form a covering structure surrounding the outer contour of the open portion; the rear positioning surface (104) is located at the tail of the fixed connector body (100), and the rear positioning surface (104) forms an 88° angle with the tail of the fixed connector body (100); The fixed connector body (100) has a padlock hole (105) at the middle of the front part, and the position of the padlock hole (105) corresponds to the movement trajectory area of ​​the circuit breaker handle when it is in the off position.

2. The airbreak anti-misoperation fixed connection structure according to claim 1, characterized in that, The fixed connector body (100) is formed entirely of 304 stainless steel through sheet metal bending process.

3. The airbreak anti-misoperation fixed connection structure according to claim 1, characterized in that, The upper positioning surface (101) and the front positioning surface (103) are integrally formed, and the upper positioning surface (101) and the front positioning surface (103) are bent to form a 90° angle.

4. The airbreak anti-misoperation fixed connection structure according to claim 1, characterized in that, The padlock hole (105) protrudes outward relative to the circuit breaker body, forming a physical blocking structure on the adjacent operating area. When the circuit breaker handle is in the closed position, the handle body rotates upward and spatially interferes with the area where the padlock hole (105) is located, preventing the padlock from passing through the padlock hole to achieve locking.

5. The airbreak anti-misoperation fixed connection structure according to claim 1, characterized in that, The rear positioning surface (104) extends inside the circuit breaker and is fixed to the internal structure of the circuit breaker by fasteners.

6. The airbreak anti-misoperation fixed connection structure according to claim 1, characterized in that, The fixed connector bodies (100) are arranged side by side, and the padlock hole (105) area at the front end of the adjacent fixed connector bodies (100) forms the protection zone of the circuit breaker handle.

Images