Breaker speed test sensor support

Abstract

The invention relates to the technical field of sensor supports, and provides a circuit breaker speed test sensor support, which effectively enhances the test stability and avoids the displacement problem of a traditional magnetic seat type support under external vibration by adopting a detachable connecting frame and an adsorption device, thereby ensuring the accuracy of test data. And the ball head introduced into the bracket is rotationally connected with the connecting buckle, so that the speed sensor is more flexible and convenient to adjust in the spatial position. A tester can quickly and accurately adjust the direction and the position of the sensor by rotating the clamping knob and the arc-shaped handle so as to adapt to different test requirements, and the test efficiency and the test convenience are remarkably improved; the support can be suitable for various devices and environments, and can provide stable support by being simply adsorbed on a smooth surface. The flexible adjustment capability of the connecting buckle solves the problem of insufficient applicability of the clamping type support, and the clamping type support is widely suitable for various types of circuit breakers and test occasions.

Description

Technical Field

[0001] The invention relates to the technical field of sensor brackets, in particular to a circuit breaker speed test sensor bracket. Background Art

[0002] In the power system, the circuit breaker is a key protection device. Its main function is to detect and isolate faults to prevent overload and short circuit of the power system, thereby protecting power equipment and ensuring the safe and stable operation of the system. The performance of the circuit breaker is directly related to the overall safety and stability of the power system. Therefore, ensuring the reliability of the circuit breaker during operation is the top priority of power system operation and maintenance.

[0003] In order to verify the function and performance of the circuit breaker, regular tests are required. Among them, speed test is one of the most important items in the circuit breaker test. The purpose of speed test is to evaluate the action time of the circuit breaker, that is, the time from the occurrence of a fault to the successful disconnection of the circuit by the circuit breaker. The length of this time directly affects the response speed of the power system to the fault, which in turn is related to the safety of the equipment and the stability of operation.

[0004] During the speed test, it is necessary to ensure that the speed sensor is accurately aligned with the test equipment and that the speed sensor is stable during the test. During the test, the speed sensor generally needs to be installed at a specific position of the circuit breaker in order to accurately collect its action time.

[0005] The speed sensor brackets currently used in the market are mainly divided into two types: magnetic seat brackets and clamping brackets. The bottom of the magnetic seat bracket is magnetically attached to the iron device, and the speed sensor is connected to the end of the bracket to fix the speed sensor in a specified position. The bracket is easy to install and disassemble, and has high flexibility for repeated use. However, in actual use, during testing, due to external vibrations, the magnetic seat will move with the adsorption point, causing the sensor position at the end of the bracket to shift, thereby affecting the accuracy of the test data; the bottom of the clamping bracket is fixed to the external device by a clamping device (such as a clamp body, etc.), and the fixing stability is higher than that of the magnetic seat bracket, but its adaptability to different equipment and environments is poor, that is, the fixing point at the end of the bracket is not easy to find. In addition, the existing magnetic seat brackets and clamping brackets have the problem of inconvenient adjustment of the speed sensor position, which affects the test efficiency.

[0006] Based on this, the present invention proposes a circuit breaker speed test sensor bracket to improve the spatial position of the speed sensor while stably fixing the speed sensor, thereby improving the speed test efficiency. Summary of the invention

[0007] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a circuit breaker speed test sensor bracket so as to improve the spatial position of the speed sensor while stably fixing the speed sensor, thereby improving the speed test efficiency.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A circuit breaker speed test sensor bracket, comprising: a connecting frame detachably connected to the speed sensor, a connecting buckle rotatably connected to the connecting frame, and an adsorption device rotatably connected to the connecting buckle;

[0010] A ball head is provided at the bottom of the connecting frame, and a ball head is also provided at the top of the adsorption device. The connecting buckle is divided into a left connecting flap and a right connecting flap, and the left connecting flap and the right connecting flap are arranged in a mirror-symmetrical manner. Two arc-shaped grooves are respectively provided on the two ends of the opposite surfaces of the left connecting flap and the right connecting flap, and the arc-shaped grooves match the ball head. A connecting hole is provided in the middle of the left connecting flap and the right connecting flap, and a clamping knob is provided in the connecting hole, and a hand screw is provided at the vacant end of the clamping knob; the connecting frame and the adsorption device are rotatably connected to the two ends of the connecting buckle through the ball head.

[0011] Preferably, the adsorption device includes: a shell, a chassis, a rubber pad, a battery, an electric push rod, a vacuum cylinder, a connecting pipe, and an air release valve; the shell is a U-shaped frame with a hollow interior, and the U-shaped frame is provided with a battery, an electric push rod, a vacuum cylinder, and a connecting pipe in sequence; the shell is arranged above the chassis, and a cavity is provided at the bottom of the chassis, and the bottom of the cavity is sealed and connected to the rubber pad; the battery is electrically connected to the electric push rod; a switch for controlling the operation of the electric push rod is provided on the shell; the connecting pipe connects the vacuum cylinder exhaust pipe with the sealed cavity formed between the chassis and the rubber pad; the connecting pipe is provided with an air release valve; a ball head is fixedly connected to the top of the shell, and the ball head is rotatably connected to the connecting buckle.

[0012] Preferably, a pressure gauge is provided on the top of the chassis, and the pressure gauge indicates the air pressure of the sealed cavity formed between the chassis and the rubber pad.

[0013] Preferably, the connecting frame is a rectangular structure, a rectangular groove is opened on the top of the connecting frame, a plurality of arc grooves are arranged in the rectangular groove, the arc groove is clamped with the bottom of the speed sensor, a fixed block is fixed at the bottom of the speed sensor, a fixed shaft is provided at the bottom of the fixed block, the fixed shaft is clamped with the arc groove, and the plurality of arc grooves are arranged equidistantly.

[0014] Preferably, fixing holes are provided on the two side surfaces of the top of the connecting frame where the rectangular groove is not provided, the fixing holes are provided with internal threads, and the fixing holes are sleeved with fixing bolts.

[0015] Preferably, an arc-shaped handle is provided at one end of the clamping knob away from the connecting buckle.

[0016] Preferably, there are three groups of connecting buckles, namely the first connecting buckle, the second connecting buckle and the third connecting buckle. One end of the first connecting buckle is rotatably connected to the connecting frame, the idle end of the first connecting buckle is rotatably connected to the first connecting rod, the idle end of the first connecting rod is rotatably connected to one end of the second connecting buckle, the idle end of the second connecting buckle is rotatably connected to the second connecting rod, the idle end of the second connecting rod is rotatably connected to one end of the third connecting buckle, and the idle end of the third connecting buckle is rotatably connected to the adsorption device; ball heads are provided at both ends of the first connecting rod and the second connecting rod.

[0017] Preferably, the first connecting rod and the second connecting rod are rectangular rods, and a plurality of weight-reducing grooves are formed on the first connecting rod and the second connecting rod.

[0018] Preferably, trapezoidal grooves are respectively provided on the middle sections of the separating surfaces of the left connecting petal and the right connecting petal of the connecting buckle.

[0019] The invention discloses a circuit breaker speed test sensor bracket having the following beneficial effects.

[0020] Enhanced test stability:

[0021] This bracket adopts a connecting frame and an adsorption device that are detachably connected to the speed sensor as the main body of the fixed speed sensor. It can maintain stable fixation during the test, avoiding the displacement problem of traditional magnetic suction base brackets under the influence of external vibration, thereby ensuring the accuracy of the test data.

[0022] Quick Adjustment Function:

[0023] The introduction of a spherical head and a rotatable connection between the bracket and the connecting buckle makes the spatial position adjustment of the speed sensor more flexible and convenient. The tester can expand the distance between the two arc-shaped gaps between the left connecting flap and the right connecting flap by rotating the clamping knob and the arc handle. At this time, the ball head can be rotated to quickly and accurately adjust the angle of the ball head connection component, so that the direction and position of the sensor can be quickly adjusted to meet different test requirements, greatly improving the efficiency and convenience of the test.

[0024] Strong adaptability:

[0025] The bracket of the present invention can be applied to a variety of equipment and environments. It only needs to adsorb the adsorption device on a smooth surface to provide stable support for the bracket. The connecting buckle can be flexibly adjusted at different installation points, which solves the shortcomings of the clamping bracket in terms of applicability, so that it can be widely used in various types of circuit breakers and testing occasions.

[0026] Security Improvements:

[0027] By adopting a sealing design of the chassis and rubber pads, combined with the application of a vacuum cylinder and an electric push rod, the bracket can provide better fixing force during use to prevent accidental falling off and misoperation.

[0028] Simplify the operation process:

[0029] The curved handle of the clamping knob is easier to operate, allowing testers to install and remove the speed sensor more quickly, reducing time waste and misoperation caused by complex operations.

[0030] The bracket is provided with a pressure gauge on the top of the chassis, and the adsorption effect can be judged according to the pressure gauge.

[0031] Reduce costs:

[0032] Due to the stability and efficiency of the bracket, repeated tests due to inaccurate test data are reduced, and maintenance costs and labor costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the circuit breaker speed test sensor bracket of the present invention.

[0034] Figure 2 It is a side view of the adsorption device of the present invention.

[0035] Figure 3 for Figure 2 Schematic diagram of the cutaway structure of section AA.

[0036] Figure 4 It is a partial structural connection schematic diagram of the present invention.

[0037] Figure 5 It is a partial structural connection schematic diagram of the present invention.

[0038] In the accompanying drawings: 1. Connecting frame; 11. Rectangular groove; 12. Fixing bolt; 2. Connecting buckle; 21. Left connecting flap; 22. Right connecting flap; 23. Arc-shaped groove; 24. First connecting buckle; 25. Second connecting buckle; 26. Third connecting buckle; 3. Adsorption device; 31. Shell; 32. Chassis; 33. Rubber pad; 34. Battery; 35. Electric push rod; 36. Vacuum cylinder; 37. Connecting pipe; 38. Deflation valve; 39. Pressure gauge; 4. Clamping knob; 5. Thumb screw; 6. First connecting rod; 7. Second connecting rod; 8. Ball head. DETAILED DESCRIPTION

[0039] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0041] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0042] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0043] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0044] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0045] Example 1

[0046] Please refer to Figure 1 , a circuit breaker speed test sensor bracket, comprising: a connecting frame 1 detachably connected to the speed sensor, a connecting buckle 2 rotatably connected to the connecting frame 1, and an adsorption device 3 rotatably connected to the connecting buckle 2;

[0047] In this embodiment, a smooth ball head 8 is provided at the bottom of the connecting frame 1, and the ball head 8 is hemispherical; the connecting frame 1 is made of high-strength plastic or aluminum alloy material, which is not only light but also has good pressure resistance and impact resistance, ensuring that it is not easy to deform when bearing the weight of the speed sensor and related equipment; the upper part of the connecting frame 1 is designed as a rectangular structure with appropriate length and width to ensure that it can provide sufficient support surface so that the speed sensor can remain stable under various test conditions. In order to enhance the anti-slip property of the connecting frame 1, the surface is anti-slip treated to effectively prevent accidental sliding during operation.

[0048] like Figure 4 As shown, a ball head 8 is also provided on the top of the adsorption device 3. The ball head 8 is the same as the ball head 8 at the bottom of the connecting frame 1, and the diameter and material are the same. The ball heads 8 that appear below are the same and will not be repeated. The connecting buckle 2 is divided into a left connecting flap 21 and a right connecting flap 22. The left connecting flap 21 and the right connecting flap 22 are arranged in a mirror-symmetrical manner. Two arc-shaped grooves 23 are respectively provided on the opposite ends of the left connecting flap 21 and the right connecting flap 22, and the arc-shaped grooves 23 match the ball head 8. A connecting hole is provided in the middle of the left connecting flap 21 and the right connecting flap 22, and a clamping knob 4 is provided in the connecting hole. A hand screw 5 is provided at the vacant end of the clamping knob 4; the connecting frame 1 and the adsorption device 3 are rotatably connected to the two ends of the connecting buckle 2 through the ball head 8.

[0049] like Figures 2 to 3As shown, the adsorption device 3 includes: a shell 31, a chassis 32, a rubber pad 33, a battery 34, an electric push rod 35, a vacuum cylinder 36, a connecting pipe 37, and a deflation valve 38; the shell 31 is a U-shaped frame with a hollow interior, and the U-shaped frame is provided with a battery 34, an electric push rod 35, a vacuum cylinder 36, and a connecting pipe 37 in sequence; the position of each component is reasonably arranged to ensure the compactness and stability of the whole; the shell 31 is arranged above the chassis 32, and a cavity is provided at the bottom of the chassis 32, and the bottom of the cavity is sealed and connected with the rubber pad 33 to prevent air leakage and increase the stability of adsorption; the electric push rod 35 is used to control the piston movement to extract the gas in the sealed cavity, which improves the stability of the device fixation and reduces the labor intensity of the operator; the rubber pad 33 needs to have good elasticity and wear resistance, as well as a certain corrosion resistance, to ensure that a good adsorption effect can be maintained during the long-term use of the bracket;

[0050] The battery 34 is electrically connected to the electric push rod 35; a switch for controlling the operation of the electric push rod 35 is provided on the housing 31, and the user can easily and quickly enable the adsorption function when needed. The switch is designed to be waterproof and dustproof, ensuring reliability in various environments and improving the durability of the equipment; the connecting pipe 37 connects the vacuum cylinder 36 exhaust pipe with the sealed cavity formed between the chassis 32 and the rubber pad 33; after the electric push rod 35 works, the connecting pipe 37 sucks out the air in the sealed cavity to generate negative pressure, thereby generating negative pressure between the rubber pad 33 and the adsorption point to effectively fix the equipment, and the connecting pipe 37 is provided with a deflation valve 38. When the adsorption needs to be released, the user can easily operate it and quickly release the air pressure to avoid accidents caused by excessive air pressure. The deflation valve 38 passes through the outside of the housing 31, which is convenient for users to use; a ball head 8 is fixedly connected to the top of the housing 31, and the ball head 8 is rotatably connected to the connecting buckle 2.

[0051] The connecting frame 1 is made of high-strength plastic or aluminum alloy material, which is not only lightweight but also has excellent pressure and impact resistance, ensuring that it is not easily deformed when bearing the weight of the speed sensor and related equipment, thereby improving the overall stability and reliability. The adsorption device 3 can achieve an efficient negative pressure adsorption effect. The application of the electric push rod 35 greatly reduces the labor intensity of the operators. The user can quickly enable the adsorption function through a simple switch operation, which improves the convenience of operation. The bracket uses a connecting frame 1 and an adsorption device 3 that are detachably connected to the speed sensor as the main body of the fixed speed sensor. It can maintain a stable fixation during the test, avoiding the displacement problem of the traditional magnetic suction seat bracket under the influence of external vibration, thereby ensuring the accuracy of the test data.

[0052] The bracket introduces a ball head 8 that is rotatably connected to the connecting buckle 2, making the adjustment of the speed sensor in space more flexible and convenient. The tester can expand the distance between the two arc-shaped gaps between the left connecting flap 21 and the right connecting flap 22 by rotating the clamping knob 4 and the arc handle. At this time, the ball head 8 can be rotated to quickly and accurately adjust the angle of the component connected to the ball head 8, so that the direction and position of the sensor can be quickly adjusted to meet different test requirements, greatly improving the efficiency and convenience of the test. The bracket of the present invention can be applied to a variety of equipment and environments. It only needs to adsorb the adsorption device 3 on a smooth surface to provide stable support for the bracket. The connecting buckle 2 can be flexibly adjusted at different installation points, which solves the shortcomings of the clamp-type bracket in terms of applicability, so that it can be widely used in various types of circuit breakers and test occasions.

[0053] Example 2

[0054] Based on Example 1, please refer to Figures 1 to 3 , This embodiment provides a circuit breaker speed test sensor bracket, and the bracket structure in this embodiment is basically the same as that in embodiment 1, including: a connecting frame 1, a connecting buckle 2 and an adsorption device 3;

[0055] A pressure gauge 39 is provided on the top of the chassis 32. The pressure gauge 39 indicates the air pressure in the sealed cavity formed between the chassis 32 and the rubber pad 33. The pressure gauge 39 can indicate the air pressure state of the sealed cavity formed between the chassis 32 and the rubber pad 33 in real time. Through the pressure gauge 39, the user can intuitively understand the adsorption effect and ensure the stability of the equipment during the test.

[0056] like Figure 5 As shown, the connecting frame 1 is a rectangular structure, and a rectangular groove 11 is provided on the top of the connecting frame 1. A plurality of arc grooves are provided in the rectangular groove 11, and the arc grooves are clamped with the bottom of the speed sensor. A fixed block is fixed at the bottom of the speed sensor, and a fixed shaft is provided at the bottom of the fixed block. The fixed shaft is clamped with the arc groove, which ensures that the speed sensor is firmly fixed and is convenient for quick replacement, thereby improving the overall utilization efficiency. A plurality of arc grooves are arranged equidistantly, and different arc grooves can also be rotated to install the speed sensor to adjust the spatial position of the speed sensor.

[0057] The top of the connecting frame 1 is provided with fixing holes on both sides where the rectangular groove 11 is not formed, and the fixing holes are provided with internal threads, and the fixing holes are sleeved with fixing bolts 12. The top of the connecting frame 1 is provided with fixing holes on both sides where the rectangular groove 11 is not formed, and the fixing holes are provided with internal threads for the fixing bolts 12 to use, so as to enhance the connection strength between the connecting frame 1 and the fixing device. The location of the fixing holes is a location that is easy for users to operate, ensuring that they can be quickly installed and disassembled on site, reducing the workload of testers.

[0058] An arc-shaped handle is provided at one end of the clamping knob 4 away from the connecting buckle 2, which facilitates the user to operate when installing, removing or adjusting the speed sensor, thereby improving the overall operational convenience.

[0059] Example 3

[0060] Based on Example 1, please refer to Figure 1 In this embodiment, there are three groups of connecting buckles, namely the first connecting buckle 24, the second connecting buckle 25, and the third connecting buckle 26. One end of the first connecting buckle 24 is rotatably connected to the connecting frame 1, the idle end of the first connecting buckle 24 is rotatably connected to the first connecting rod 6, the idle end of the first connecting rod 6 is rotatably connected to one end of the second connecting buckle 25, the idle end of the second connecting buckle 25 is rotatably connected to the second connecting rod 7, the idle end of the second connecting rod 7 is rotatably connected to one end of the third connecting buckle 26, and the idle end of the third connecting buckle 26 is rotatably connected to the adsorption device 3; ball heads 8 are provided at both ends of the first connecting rod 6 and the second connecting rod 7.

[0061] Through the coordination of multiple connecting buckles and multiple connecting rods, the speed sensor can move in a larger range away from the fixed point and can cover a larger range. It can adapt to different test scenarios and its versatility is improved.

[0062] like Figure 4 As shown, the first connecting rod 6 and the second connecting rod 7 are rectangular rods, and a plurality of weight-reducing grooves are provided on the first connecting rod 6 and the second connecting rod 7, which not only maintain the strength of the rod, but also effectively reduce the overall weight and improve the convenience of operation. The first connecting rod 6 and the second connecting rod 7 are made of high-strength plastic or aluminum alloy material, which is not only light but also has good pressure resistance and impact resistance.

[0063] Trapezoidal grooves are respectively provided on the middle sections of the separation surfaces of the left connecting petal 21 and the right connecting petal 22 of the connecting buckle, which can reduce the overall weight of the connecting buckle and facilitate observation of the screwing condition of the clamping knob 4 and the hand screw 5.

[0064] In this embodiment, the connections of all components of the circuit breaker speed test sensor bracket can be quickly disassembled and can be uniformly placed after being disassembled when not in use, without taking up additional space and facilitating transportation.

[0065] The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be a substitution of a part of the structure, device, method step, or a complete technical solution. The equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A circuit breaker speed test sensor bracket, characterized in that: include: A connecting frame detachably connected to the speed sensor, a connecting buckle rotatably connected to the connecting frame, and an adsorption device rotatably connected to the connecting buckle; A ball head is provided at the bottom of the connecting frame, and a ball head is also provided at the top of the adsorption device. The connecting buckle is divided into a left connecting flap and a right connecting flap, and the left connecting flap and the right connecting flap are arranged in a mirror-symmetrical manner. Two arc-shaped grooves are respectively provided on the two ends of the opposite surfaces of the left connecting flap and the right connecting flap, and the arc-shaped grooves match the ball head. A connecting hole is provided in the middle of the left connecting flap and the right connecting flap, and a clamping knob is provided in the connecting hole, and a hand screw is provided at the vacant end of the clamping knob; the connecting frame and the adsorption device are rotatably connected to the two ends of the connecting buckle through the ball head.

2. The circuit breaker speed test sensor bracket according to claim 1, characterized in that: The adsorption device includes: a shell, a chassis, a rubber pad, a battery, an electric push rod, a vacuum cylinder, a connecting pipe, and a deflation valve; the shell is a U-shaped frame with a hollow interior, and the U-shaped frame is provided with a battery, an electric push rod, a vacuum cylinder, and a connecting pipe in sequence; the shell is arranged above the chassis, and a cavity is provided at the bottom of the chassis, and the bottom of the cavity is sealed and connected to the rubber pad; the battery is electrically connected to the electric push rod; a switch for controlling the operation of the electric push rod is provided on the shell; the connecting pipe connects the vacuum cylinder exhaust pipe with the sealed cavity formed between the chassis and the rubber pad; the connecting pipe is provided with a deflation valve; a ball head is fixedly connected to the top of the shell, and the ball head is rotatably connected to the connecting buckle.

3. The circuit breaker speed test sensor bracket according to claim 1, characterized in that: A pressure gauge is arranged on the top of the chassis, and the pressure gauge indicates the air pressure of the sealed cavity formed between the chassis and the rubber pad.

4. The circuit breaker speed test sensor bracket according to claim 1, characterized in that: The connecting frame is a rectangular structure, a rectangular groove is provided on the top of the connecting frame, a plurality of arc grooves are provided in the rectangular groove, the arc groove is clamped with the bottom of the speed sensor, a fixed block is fixed at the bottom of the speed sensor, a fixed shaft is provided at the bottom of the fixed block, the fixed shaft is clamped with the arc groove, and the plurality of arc grooves are arranged equidistantly.

5. The circuit breaker speed test sensor bracket according to claim 2, characterized in that: The top of the connecting frame is provided with fixing holes on both sides where the rectangular groove is not provided, the fixing holes are provided with internal threads, and the fixing holes are sleeved with fixing bolts.

6. The circuit breaker speed test sensor bracket according to claim 3, characterized in that: An arc-shaped handle is provided at one end of the clamping knob away from the connecting buckle.

7. The circuit breaker speed test sensor bracket according to claim 1, characterized in that: There are three groups of connecting buckles, namely the first connecting buckle, the second connecting buckle and the third connecting buckle. One end of the first connecting buckle is rotatably connected to the connecting frame, the idle end of the first connecting buckle is rotatably connected to the first connecting rod, the idle end of the first connecting rod is rotatably connected to one end of the second connecting buckle, the idle end of the second connecting buckle is rotatably connected to the second connecting rod, the idle end of the second connecting rod is rotatably connected to one end of the third connecting buckle, and the idle end of the third connecting buckle is rotatably connected to the adsorption device; ball heads are provided at both ends of the first connecting rod and the second connecting rod.

8. The circuit breaker speed test sensor bracket according to claim 1, characterized in that: The first connecting rod and the second connecting rod are rectangular rods, and a plurality of weight-reducing grooves are formed on the first connecting rod and the second connecting rod.

9. The circuit breaker speed test sensor bracket according to claim 1, characterized in that: The left connecting petal and the right connecting petal of the connecting buckle are respectively provided with a trapezoidal groove on the middle section of the separated surface.

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