Contact stroke overtravel measuring device with positioning function

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a contact stroke overtravel measuring device with a positioning function, which comprises a circuit breaker body and a mounting plate, a transmission rod is arranged on the circuit breaker body, a sleeve is mounted on the transmission rod, a baffle plate is arranged on the transmission rod, an overtravel spring is arranged between the sleeve and the baffle plate, and the mounting plate is arranged on the mounting plate. A reset spring is arranged at the left end of the baffle, a transverse seat is fixedly connected to the outside of the circuit breaker body, a displacement sensor is arranged at the right end of the transverse seat, a display control assembly is arranged at the upper end of the transverse seat, an end block is fixedly connected to the right end of the sleeve, and an ejector rod is arranged at the upper end of the end block. According to the contact stroke overtravel measuring device, contact stroke overtravel measuring data can be conveniently and accurately obtained, the situation that mistaken measurement is prone to occurring can be prevented, and the contact stroke overtravel measuring accuracy of the circuit breaker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a contact stroke overtravel measuring device with a positioning function. Background Art

[0002] A circuit breaker refers to a switching device that can close, carry and disconnect current under normal or abnormal circuit conditions. A circuit breaker is an important electrical device for the protection and operation of a power system. It can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. In order to prevent the vacuum circuit breaker from bouncing when closing and to maintain a certain contact contact pressure in the closed state, an overtravel protection structure is often provided on the transmission rod of the circuit breaker operating mechanism. During use, the existing contact travel overtravel measuring device needs to read the contact travel overtravel measurement data by referring to the scale with the naked eye, which makes the contact travel overtravel measurement inconvenient and prone to mismeasurement, affecting the contact travel overtravel measurement accuracy of the circuit breaker. Therefore, we propose a contact travel overtravel measuring device with a positioning function to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a contact stroke overtravel measuring device with a positioning function to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A contact stroke overtravel measuring device with a positioning function comprises a circuit breaker body and a mounting plate, wherein a transmission rod is provided on the circuit breaker body, a sleeve is installed on the transmission rod, a baffle is provided on the transmission rod, an overtravel spring is provided between the sleeve and the baffle, a reset spring is provided at the left end of the baffle, a cross seat is fixedly connected to the outside of the circuit breaker body, a displacement sensor is provided at the right end of the cross seat, a display control component is provided at the upper end of the cross seat, an end block is fixedly connected to the right end of the sleeve, a push rod is provided at the upper end of the end block, the upper end of the push rod is fixedly connected to the measuring end of the displacement sensor through a connecting block, a positioning block is provided at the left end of the circuit breaker body, a groove is provided at the end surface of the mounting plate corresponding to the positioning block, the positioning block is adapted to the groove, and a fastening screw is threadedly connected between the circuit breaker body and the mounting plate.

[0006] Preferably, the display control component includes a measurement controller and a displacement display screen, the measurement controller is fixed on a horizontal seat, the displacement display screen is arranged outside the measurement controller, the output end of the displacement sensor is electrically connected to the input end of the measurement controller, and the output end of the measurement controller is electrically connected to the input end of the displacement display screen.

[0007] Preferably, a buzzer alarm is provided at the upper end of the measurement controller, and the output end of the measurement controller is electrically connected to the input end of the buzzer alarm.

[0008] Preferably, a guide seat is provided on the circuit breaker body, and the sleeve slides through the end of the guide seat.

[0009] Preferably, the number of the positioning blocks is two, and the positioning blocks are symmetrically distributed on both sides.

[0010] Preferably, a wire passage opening is provided in the middle of the end surface of the mounting plate, and the cross-sectional shape of the wire passage opening is rectangular.

[0011] Preferably, side blocks are fixedly connected to both sides of the mounting plate, and mounting holes are formed on end faces of the side blocks.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can monitor the travel displacement information of the sleeve by using a displacement sensor. The travel displacement of the sleeve is the contact travel over-travel distance of the circuit breaker. The displacement sensor can transmit the measured over-travel distance information to the measurement controller in the display control component. If the over-travel distance is less than the preset value, the contact travel over-travel distance measurement result of the circuit breaker is qualified. If the over-travel distance reaches the preset value, the contact travel over-travel distance measurement result of the circuit breaker is unqualified, and the buzzer alarm sounds a buzzer prompt sound to assist personnel to quickly determine the contact travel over-travel distance measurement result. The displacement display screen in the display control component can be used to intuitively display the contact travel over-travel distance, so as to facilitate accurate knowledge of the contact travel over-travel measurement data, which is conducive to preventing the occurrence of mismeasurement and improving the contact travel over-travel measurement accuracy of the circuit breaker.

[0014] 2. The utility model provides a positioning block that is compatible with the positioning block, so that the positioning block can be inserted into the groove, which has a good positioning effect when the circuit breaker body is assembled with the mounting plate. The circuit breaker body and the mounting plate are fastened with fastening screws, thereby facilitating the positioning and assembly of the circuit breaker body and the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional structural schematic diagram of a contact stroke overtravel measuring device with a positioning function of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0017] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part B;

[0018] Figure 4 The utility model discloses a principle block diagram of a measuring controller in a contact stroke overtravel measuring device with a positioning function.

[0019] In the figure: 1. circuit breaker body; 101. cross seat; 102. displacement sensor; 103. positioning block; 104. fastening screw; 2. mounting plate; 201. groove; 202. wire opening; 203. side block; 204. mounting hole; 3. transmission rod; 4. sleeve; 401. end block; 402. top rod; 403. connecting block; 5. baffle; 6. reset spring; 7. overtravel spring; 8. display control assembly; 801. measurement controller; 802. displacement display screen; 803. buzzer alarm; 9. guide seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0022] A contact stroke overtravel measuring device with a positioning function comprises a circuit breaker body 1 and a mounting plate 2, a transmission rod 3 is arranged on the circuit breaker body 1, a sleeve 4 is installed on the transmission rod 3, a baffle 5 is arranged on the transmission rod 3, an overtravel spring 7 is arranged between the sleeve 4 and the baffle 5, a reset spring 6 is arranged at the left end of the baffle 5, a horizontal seat 101 is fixedly connected to the outside of the circuit breaker body 1, a displacement sensor 102 is arranged at the right end of the horizontal seat 101, a display control component 8 is arranged at the upper end of the horizontal seat 101, an end block 401 is fixedly connected to the right end of the sleeve 4, a top rod 402 is arranged at the upper end of the end block 401, and the upper end of the top rod 402 is fixedly connected to the measuring end of the displacement sensor 102 through a connecting block 403. If the circuit breaker body 1 completes the closing and opening movements, the circuit breaker body 1 is closed and the opening movement is completed. When the contact is in operation, the transmission rod 3 and the baffle 5 stop moving. At this time, the travel displacement of the sleeve 4 is the contact overtravel distance of the circuit breaker. The sleeve 4 squeezes the overtravel spring 7 to drive the push rod 402 to continue to move. The contact overtravel distance can be monitored by using the displacement sensor 102. A positioning block 103 is provided at the left end of the circuit breaker body 1. A groove 201 is provided at the end surface of the mounting plate 2 corresponding to the positioning block 103. The positioning block 103 is adapted to the groove 201, so that the positioning block 103 can be inserted in the groove 201, which has a good positioning effect when the circuit breaker body 1 and the mounting plate 2 are assembled. A fastening screw 104 is threadedly connected between the circuit breaker body 1 and the mounting plate 2, so as to facilitate the positioning and assembly of the circuit breaker body 1 and the mounting plate 2.

[0023] As a preferred implementation in this embodiment, Figure 1 and Figure 4 As shown, the display control component 8 includes a measurement controller 801 and a displacement display screen 802. The measurement controller 801 is fixed on the horizontal seat 101, and the displacement display screen 802 is arranged outside the measurement controller 801. The output end of the displacement sensor 102 is electrically connected to the input end of the measurement controller 801, and the output end of the measurement controller 801 is electrically connected to the input end of the displacement display screen 802, so that the displacement sensor 102 can transmit the contact travel over-travel distance information to the measurement controller 801 for analysis and processing, and the contact travel over-travel distance can be intuitively displayed using the displacement display screen 802.

[0024] As a preferred implementation in this embodiment, Figure 1 and Figure 4 As shown, a buzzer alarm 803 is provided at the upper end of the measurement controller 801, and the output end of the measurement controller 801 is electrically connected to the input end of the buzzer alarm 803. If the measurement controller 801 analyzes that the over-travel distance reaches the preset value, the contact travel over-travel distance measurement result of the circuit breaker is unqualified, and the buzzer alarm 803 emits a buzzer prompt sound to assist personnel to quickly determine that the contact travel over-travel distance measurement result is unqualified.

[0025] As a preferred implementation in this embodiment, Figure 1 As shown, a guide seat 9 is provided on the circuit breaker body 1, and the sleeve 4 slides through the end of the guide seat 9, so as to achieve the purpose of providing a good guide for the sleeve 4 when it moves.

[0026] As a preferred implementation in this embodiment, Figure 1 As shown, there are two positioning blocks 103, which are symmetrically arranged on both sides. A wire opening 202 is provided in the middle of the end surface of the mounting plate 2, and the cross-section of the wire opening 202 is rectangular, so as to facilitate the wiring of the circuit breaker body 1.

[0027] As a preferred implementation in this embodiment, Figure 1 As shown, both sides of the mounting plate 2 are fixedly connected with side blocks 203, and the end faces of the side blocks 203 are provided with mounting holes 204, so as to achieve the purpose of fastening and mounting the mounting plate 2.

[0028] Working principle:

[0029] During use, when the circuit breaker body 1 completes the closing and opening actions, the transmission rod 3 and the baffle 5 stop moving, and the sleeve 4 squeezes the overtravel spring 7 to drive the push rod 402 to continue to move. At this time, the stroke displacement of the sleeve 4 is the contact stroke overtravel distance of the circuit breaker. The stroke displacement information of the sleeve 4 can be monitored by using the displacement sensor 102. The displacement sensor 102 can transmit the measured overtravel distance information to the measurement controller 801 in the display control component 8. If the overtravel distance is less than the preset value, the contact stroke overtravel distance measurement result of the circuit breaker is qualified. If the overtravel distance reaches the preset value, the contact stroke overtravel distance measurement result of the circuit breaker is unqualified, and the buzzer alarm 803 sounds a buzzer prompt sound to assist personnel to quickly determine the contact stroke overtravel distance measurement result. The displacement display screen 802 in the display control component 8 can be used to intuitively display the contact stroke overtravel distance, thereby facilitating accurate knowledge of the contact stroke overtravel measurement data.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A contact stroke overtravel measuring device with a positioning function, comprising a circuit breaker body (1) and a mounting plate (2), wherein the circuit breaker body (1) is provided with a transmission rod (3), a sleeve (4) is mounted on the transmission rod (3), a baffle (5) is provided on the transmission rod (3), an overtravel spring (7) is provided between the sleeve (4) and the baffle (5), and a return spring (6) is provided at the left end of the baffle (5), characterized in that: The outside of the circuit breaker body (1) is fixedly connected with a cross seat (101), a displacement sensor (102) is arranged at the right end of the cross seat (101), a display control assembly (8) is arranged at the upper end of the cross seat (101), an end block (401) is fixedly connected with the right end of the sleeve (4), a top rod (402) is arranged at the upper end of the end block (401), the upper end of the top rod (402) is fixedly connected to the measuring end of the displacement sensor (102) through a connecting block (403), a positioning block (103) is arranged at the left end of the circuit breaker body (1), a groove (201) is provided at a position corresponding to the end surface of the mounting plate (2) and the positioning block (103), the positioning block (103) is matched with the groove (201), and a fastening screw (104) is threadedly connected between the circuit breaker body (1) and the mounting plate (2).

2. A contact stroke overtravel measuring device with positioning function according to claim 1, characterized in that: The display control component (8) comprises a measurement controller (801) and a displacement display screen (802); the measurement controller (801) is fixed on a horizontal seat (101); the displacement display screen (802) is arranged outside the measurement controller (801); the output end of the displacement sensor (102) is electrically connected to the input end of the measurement controller (801); and the output end of the measurement controller (801) is electrically connected to the input end of the displacement display screen (802).

3. A contact stroke overtravel measuring device with positioning function according to claim 2, characterized in that: A buzzer alarm (803) is provided at the upper end of the measurement controller (801), and the output end of the measurement controller (801) is electrically connected to the input end of the buzzer alarm (803).

4. A contact stroke overtravel measuring device with positioning function according to claim 1, characterized in that: A guide seat (9) is provided on the circuit breaker body (1), and the sleeve (4) slides through the end of the guide seat (9).

5. The contact stroke overtravel measuring device with positioning function according to claim 1, characterized in that: The number of the positioning blocks (103) is two, and the positioning blocks (103) are arranged in a bilaterally symmetrical distribution.

6. A contact stroke overtravel measuring device with positioning function according to claim 1, characterized in that: A wire opening (202) is provided in the middle of the end surface of the mounting plate (2), and the cross-sectional shape of the wire opening (202) is rectangular.

7. A contact stroke overtravel measuring device with positioning function according to claim 1, characterized in that: Side blocks (203) are fixedly connected to both sides of the mounting plate (2), and mounting holes (204) are provided on the end surfaces of the side blocks (203).

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