Emergency manual opening device and direct current circuit breaker cabinet

Abstract

The invention relates to the technical field of opening mechanisms, and provides an emergency manual opening device, which comprises a vertical manual opening mechanism capable of pushing to trigger a circuit breaker to release and a driving module for driving the vertical manual opening mechanism to act, and is characterized in that the driving module is provided with at least one action unit; and the driving module drives the vertical manual separation mechanism to act through the action unit. The invention further provides a direct current circuit breaker cabinet which comprises a circuit breaker and further comprises the emergency manual brake separating device, and the vertical manual brake separating mechanism is jacked to trigger the circuit breaker to release. According to the invention, the driving module is matched with the vertical manual opening mechanism, so that the tripping of the circuit breaker can be realized, and the tripping of different circuit breakers can be realized by arranging a plurality of action units, such as mechanical emergency opening, electrical emergency opening and the like.

Description

Technical Field

[0001] The invention relates to the technical field of opening mechanisms, in particular to an emergency manual opening device and a DC circuit breaker cabinet. Background Art

[0002] In the DC traction power supply system of rail transit, the DC circuit breaker cabinet is generally equipped with an emergency tripping mechanism for the DC circuit breaker trolley, which is a fast tripping device set up to prevent emergencies. When the equipment control circuit fails, the emergency tripping mechanism can effectively trip the circuit breaker by linking with the cabinet door when the circuit breaker trolley is in the working position or test position, and when the position of the circuit breaker trolley changes, the emergency tripping mechanism automatically and effectively and reliably trips the circuit breaker to ensure the safety of operators and equipment. In the event of an emergency, the operator only needs to press the emergency tripping operation button of the DC switch cabinet, and the DC switch cabinet links the emergency tripping mechanism push rod on the circuit breaker trolley to move horizontally, so that the circuit breaker on the circuit breaker trolley is tripped, that is, the circuit breaker is disconnected and the power is cut off.

[0003] The working principle of the existing emergency trip mechanism of the circuit breaker trolley is that an external horizontal force of >50N is applied to the emergency trip button of the circuit breaker cabinet door. The horizontal force is transmitted to the emergency trip mechanism with a wedge block to make axial horizontal movement through the roller. The trip device on the circuit breaker moves from horizontal to vertical as it cooperates with the wedge block on the mechanism. The vertical movement causes the circuit breaker to trip. The emergency trip mechanism of the circuit breaker in the existing technical state must meet the conditions that the emergency trip mechanism and the vertical trip device of the circuit breaker are in a straight line, and the wedge block of the emergency trip mechanism and the vertical trip end of the circuit breaker are in the same plane. These two conditions can realize the circuit breaker tripping function. The emergency trip mechanism in the existing technical state is only applicable to the coplanar linear motion scene, and the use scene is single, and it cannot meet the non-coplanar linear motion scene. The manual trip traction of the mechanism is large, and it is easy to get stuck and the travel is not in place during movement. In addition, it takes a lot of time to install and debug, and it is not easy to maintain. Summary of the invention

[0004] The object of the present invention is to provide an emergency manual tripping device and a DC circuit breaker cabinet, which can at least solve some of the defects in the prior art.

[0005] To achieve the above-mentioned purpose, an embodiment of the present invention provides the following technical solution: an emergency manual tripping device, comprising a vertical manual tripping mechanism that can be pushed to trigger the circuit breaker to trip and a driving module that drives the vertical manual tripping mechanism to move, the driving module having at least one action unit, and the driving module drives the vertical manual tripping mechanism to move through the action unit.

[0006] Furthermore, the action unit includes a protruding portion, and when the highest point of the protruding portion contacts the vertical hand separation mechanism, the vertical hand separation mechanism is pushed up.

[0007] Furthermore, there are a plurality of protrusions, and the protrusions are arranged at intervals in a line.

[0008] Furthermore, the action unit includes a flip plate. When the flip plate contacts the vertical hand separation mechanism and flips, the vertical hand separation mechanism is pushed up, and the flip plate is driven to flip through the flip mechanism.

[0009] Furthermore, the flipping mechanism includes a roller arranged on the edge of the flap and a slide for the roller to slide on, the slide has a slope peak and a slope valley, and the flap is gradually flipped when the roller slides from the slope valley to the slope peak.

[0010] Furthermore, there are multiple slope peaks.

[0011] Furthermore, the driving module also includes a driving unit for sending the action unit to the bottom of the vertical hand separation mechanism.

[0012] Furthermore, the driving unit includes a slider on which the action unit is mounted and a push rod mechanism for driving the slider to move toward the vertical hand separation mechanism.

[0013] Furthermore, there are two action units, each of which is equipped with the vertical hand separation mechanism, and the two vertical hand separation mechanisms are located at different positions.

[0014] The embodiment of the present invention provides another technical solution: a DC circuit breaker cabinet, comprising a circuit breaker and the above-mentioned emergency manual tripping device, wherein the vertical manual tripping mechanism is pushed to trigger the circuit breaker to trip.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the circuit breaker tripping can be achieved by cooperating with the drive module and the vertical manual tripping mechanism, and different circuit breaker tripping can be achieved by setting multiple action units, such as for mechanical emergency tripping, electrical emergency tripping, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of an emergency manual opening device provided by an embodiment of the present invention;

[0017] Figure 2 A schematic side view of the cooperation between a drive module and a vertical manual release mechanism of an emergency manual release device provided by an embodiment of the present invention (showing a vertical manual release mechanism);

[0018] Figure 3 A schematic diagram of a driving module of an emergency manual opening device provided in an embodiment of the present invention;

[0019] Figure 4A schematic diagram of a first action unit of an emergency manual opening device provided by an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of a second action unit of an emergency manual opening device provided by an embodiment of the present invention (the landslide is not shown);

[0021] Figure 6 A schematic diagram of a base of an emergency manual opening device provided in an embodiment of the present invention;

[0022] Figure 7 A schematic diagram of a driving unit of an emergency manual opening device provided by an embodiment of the present invention;

[0023] Figure 8 A schematic diagram of a vertical manual opening mechanism of an emergency manual opening device provided by an embodiment of the present invention;

[0024] Fig. 9 A schematic diagram of an emergency manual opening device provided by an embodiment of the present invention (showing the cooperation between the vertical manual opening mechanism and the first action unit);

[0025] Fig.10 A schematic diagram from a first perspective of an emergency manual tripping device provided by an embodiment of the present invention (showing the cooperation between the vertical manual tripping mechanism and the second action unit);

[0026] Fig.11 A schematic diagram from a second perspective of an emergency manual opening device provided by an embodiment of the present invention (showing the cooperation between the vertical manual opening mechanism and the second action unit);

[0027] Fig.12 for Fig.11 Schematic diagram of the state of the jacking rod of the vertical manual separation mechanism;

[0028] Fig.13 for Fig.11 Schematic diagram of the vertical manual release mechanism's push rod falling state;

[0029] In the accompanying drawings: 1-push rod mechanism; 11-reset spring; 12-connecting rod; 13-rod head; 2-driving module; 21-slider; 211-slide plate; 2111-protrusion; 212-fixed plate; 213-slide; 2131-slope peak; 214-linear bearing; 22-flap; 221-support; 222-rotating plate; 223-roller; 224-pin shaft; 23-base; 231-guide rail; 232-bracket; 3-vertical manual separation mechanism; 31-guide block; 32-top rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 13 , an embodiment of the present invention provides an emergency manual tripping device, including a vertical manual tripping mechanism 3 that can be pushed to trigger the circuit breaker to trip, and a driving module 2 that drives the vertical manual tripping mechanism 3 to move, wherein the driving module 2 has at least one action unit, and the driving module 2 drives the vertical manual tripping mechanism 3 to move through the action unit. In this embodiment, the circuit breaker tripping can be achieved by cooperating with the driving module 2 and the vertical manual tripping mechanism 3, and different circuit breaker tripping can also be achieved by setting a plurality of action units, such as for mechanical emergency tripping, electrical emergency tripping, etc. Specifically, the driving module 2 is installed below the top surface of the circuit breaker trolley, the vertical manual tripping mechanism 3 is installed above the top surface of the circuit breaker trolley, and the push rod mechanism 1 detailed in the following embodiment is installed on the panel of the circuit breaker trolley. We can choose multiple action units to realize different actions of the vertical hand-separating mechanism 3. For example, this embodiment shows two action units to respectively realize the actions of two vertical hand-separating mechanisms 3. The two action units can adopt the same structure or different structures. For example, this embodiment shows two different structures. For the convenience of description, we can define them as the first action unit and the second action unit respectively. The two can work at the same time. Each of the action units is equipped with the vertical hand-separating mechanism 3. The two vertical hand-separating mechanisms 3 are located at different positions, which are respectively used for mechanical emergency opening and electrical emergency opening functions. Both are not limited by the opening method. For example, if you want two sets of action units to work at the same time, you can use two sets of drive units to drive the two sets of action units to move respectively. The two sets of drive units can work independently without affecting each other. Of course, you can also use a set of drive units to drive the two sets of action units to act at the same time as shown in this embodiment.

[0032] To refine the first action unit above, please refer to Figures 1 to 13, the first action unit includes a protrusion 2111, and when the highest point of the protrusion 2111 contacts the vertical manual separation mechanism 3, the vertical manual separation mechanism 3 is pushed up. In the present embodiment, this is the first structure that drives the vertical manual separation mechanism 3 to move, and can realize the coplanar linear motion opening mode. Specifically, the protrusion 2111 is used to drive the vertical manual separation mechanism 3 to move. Specifically, after the protrusion 2111 is moved to the vertical manual separation mechanism 3, the highest point of its protruding part contacts the vertical manual separation mechanism 3. When it continues to move to the bottom of the vertical manual separation mechanism 3, the protrusion 2111 can lift the vertical manual separation mechanism 3, so that the vertical manual separation mechanism 3 triggers the circuit breaker to trip. The protrusion 2111 can be a triangular prism structure, and its quadrilateral surface is provided on the slide plate 211 of the slider 21. The slide plate 211 moves with the protrusion 2111, and the tip of the triangular prism (in fact, the top of the triangular prism can be designed not to be a tip, but can be designed to be a narrower platform) faces upward to facilitate contact with the vertical manual separation mechanism 3. In order to facilitate the smooth driving of the vertical manual separation mechanism 3, the lower end of the push rod 32 of the vertical manual separation mechanism 3 can be a spherical structure, and the curved surface of the sphere is used to match the highest point of the triangular prism. After contacting the highest point of the triangular prism (at this time, the contact is not the bottom of the spherical structure), the slide plate 211 continues to move with the triangular prism, and the highest point of the triangular prism will slide to the bottom of the spherical structure, thereby pushing the push rod 32 upward, and the push rod 32 can trigger the circuit breaker to trip. When continuing to move, the spherical structure will slowly fall down along the inclined surface of the triangular prism to prevent the circuit breaker from being in the open state. Preferably, there can be multiple protrusions 2111, so that the circuit breaker trolley can be emergency opened at different physical positions. For example, two protrusions 2111 are designed in this embodiment, which are arranged in a line and along the movement direction of the slide 211, or in other words, along the direction close to the vertical opening mechanism 3.

[0033] For details on the second action unit above, please refer to Figures 1 to 13, the second action unit includes a flap 22. When the flap 22 contacts and flips the vertical manual separation mechanism 3, the vertical manual separation mechanism 3 is pushed up, and the flap 22 is driven to flip by the flipping mechanism. In the present embodiment, this is the second structure for driving the vertical manual separation mechanism 3 to move, which can realize the non-coplanar axis branch motion opening mode. Specifically, the flap 22 is used to drive the vertical manual separation mechanism 3 to move. Specifically, the flap 22 can be driven to flip by the flipping mechanism, and the vertical manual separation mechanism 3 is pushed up when flipping, thereby realizing the tripping of the circuit breaker. When the flap 22 is not in contact with the vertical manual separation mechanism 3, the vertical manual separation mechanism 3 does not move. When the flap 22 flips upward to contact the vertical manual separation mechanism 3 above it, the vertical manual separation mechanism 3 moves to trigger the circuit breaker to trip. Similarly, in order to facilitate the movement of the vertical hand separation mechanism 3, the bottom of the push rod 32 of the vertical hand separation mechanism 3 can also be designed as a spherical structure as in the above embodiment, and the push rod 32 can be pushed upward by cooperating with the flipping plate 22 through the curved surface of the sphere. Preferably, the slide 213 can be arranged on the wedge block, and the whole is a plate-like structure.

[0034] To further optimize the above solution, please refer to Figures 1 to 13 , the flipping mechanism is refined, and the flipping mechanism includes a roller 223 provided at the edge of the flap 22 and a slide 213 for the roller 223 to slide on, the slide 213 has a slope peak 2131 and a slope valley, and the flap 22 is gradually flipped during the sliding of the roller 223 from the slope valley to the slope peak 2131. In this flipping method, the contact between the slide 213 and the roller 223 is cleverly used to realize the flipping of the flap 22, the slide 213 can have a slope peak 2131 and a slope valley, and two adjacent slope valleys can naturally form a slope peak 2131, so the upward curve from the slope valley to the slope peak 2131 can be used to gradually realize the flipping of the flap 22. Preferably, there can be multiple slope peaks 2131, so there will naturally be multiple slope valleys. This solution is the same as the multiple protrusions 2111 in the above embodiment, which can allow the circuit breaker trolley to perform emergency tripping at different physical positions in the same direction of travel. Of course, in addition to this flipping mechanism, a driving member can also be directly used to drive the flap 22 to rotate, such as a small servo motor, and the flipping and resetting of the flap 22 can be achieved by controlling the forward and reverse rotation of the motor.

[0035] To further optimize the above solution, please refer to Figures 1 to 13 The flap 22 includes a rotating plate 222, a support 221 and a pin 224. The rotating plate 222 can be flipped and installed on the support 221 through the pin 224. The roller 223 is arranged on the edge of the rotating plate 222. When the roller 223 slides on the curved section from the slope valley to the slope peak 2131, the rotating plate 222 can be flipped around the pin 224.

[0036] See also Figures 1 to 13 , the driving unit mentioned in the above embodiment is refined, and the function of the driving unit is to deliver the action unit to the bottom of the vertical hand separation mechanism 3. From the above embodiment, it can be seen that no matter it is the first action unit or the second action unit, they need to cooperate with linear movement to complete the contact with the top rod 32 of the vertical hand separation mechanism 3, so the driving unit can be specially refined to complete the driving operation. As described in the above embodiment, we can not limit the number of driving units. One set of driving units can drive two sets of action units at the same time, or two sets of driving units can drive two sets of action units separately. Moreover, the driving forms of these two sets of driving units do not need to be the same, as long as they are linear drives. There are many existing linear driving forms, and this embodiment only shows one example here.

[0037] See also Figures 1 to 13 , the above-mentioned driving unit is refined, which includes a slider 21 for the installation of the action unit and a push rod mechanism 1 for driving the slider 21 to move toward the vertical hand-parting mechanism 3. The slider 21 can be used to install the above-mentioned action unit. When there are multiple sets of action units, they can all be arranged on the slider 21, or multiple sliders 21 can be designed to install multiple sets of action units respectively, so that independent driving can be achieved. Of course, the push rod mechanism 1 providing linear drive can also be selected in quantity as needed. Preferably, the slider 21 includes a slide plate 211, a fixed plate 212, and a linear bearing 214, wherein the slide 213 can actually be arranged on the slide plate 211. The slide plate 211 adopts a large-format design to facilitate the installation of the action unit. The fixed plate 212 is convenient for installation in conjunction with the push rod mechanism 1. The fixed plate 212 has holes for installing the push rod mechanism 1, and the linear bearing 214 can be conveniently installed in conjunction with the guide rail 231 on the base 23 at the bottom of the slider 21. The cooperation between the linear bearing 214 and the guide rail 231 can ensure the moving direction of the slider 21 .

[0038] See also Figures 1 to 13 The push rod mechanism 1 is refined. The push rod mechanism 1 includes a return spring 11, a connecting rod 12 and a rod head 13. The return spring 11 is sleeved on the non-threaded end of the push rod, and the rod head 13 is fixed to the connecting rod 12 using standard fasteners.

[0039] See also Figures 1 to 13 , the above-mentioned base 23 is refined, and the base 23 includes a guide rail 231 and a bracket 232, and the guide rail 231 is connected to the bracket 232 by screws.

[0040] See also Figures 1 to 13, the vertical manual separation mechanism 3 is refined, and the vertical manual separation mechanism 3 includes a guide block 31 and a push rod 32. The push rod 32 can move in the vertical channel in the guide block 31, ensuring that the push rod 32 can only move upward or fall back naturally. In the first action unit, the protrusion 2111 moves under the drive of the slider 21, and the push rod 32 will first contact the inclined surface of the triangular prism and slowly rise. After reaching the highest point of the triangular prism, the push rod 32 is lifted to the highest point. It can be pre-designed to ensure that the circuit breaker can be triggered to trip after being lifted into place, and then as the protrusion 2111 continues to move under the drive of the slider 21, the push rod 32 will slowly descend along the inclined surface and fall back naturally to release the circuit breaker from the tripping state. In the second action unit, the flap 22 moves driven by the slider 21. Initially, the roller 223 may be at any position of the valley of the landslide 213 or not at the peak 2131. Then, as the flap 22 moves, the roller 223 will slide on the landslide 213 from the valley to the peak 2131. The flap 22 will be gradually flipped. When the roller 223 moves to the peak 2131, the flap 22 has the largest flipping amplitude. Pre-design can be used to ensure that the top rod 32 can be lifted to the highest point at this time to complete the triggering of the circuit breaker tripping. Then, as the flap 22 continues to move driven by the slider 21, the top rod 32 will slide from the peak 2131 to the valley, and the top rod 32 will also slowly descend and automatically fall back to release the circuit breaker from the tripping state.

[0041] At this point, the device is flexible and the overall structure is easy to install and maintain. Converting the axial linear motion into non-coplanar vertical motion and retaining the original axial linear motion mode can be better adapted to other usage scenarios. The emergency trip assembly trips the circuit breaker when the circuit breaker trolley changes position to protect the operator. Using bearings instead of bearings improves the sensitivity and fit of moving parts, and can effectively control the error between the emergency trip mechanism and the circuit breaker release, making the trip action more sensitive and accurate; the present invention has a simple structure and is easy to operate.

[0042] An embodiment of the present invention provides a DC circuit breaker cabinet, including a circuit breaker and the above-mentioned emergency manual tripping device, wherein the vertical manual tripping mechanism 3 is pushed to trigger the circuit breaker to trip. The above-mentioned device can be installed as a whole on a circuit breaker trolley related to the mechanism, which is simple and convenient to install, and convenient for later maintenance. The DC circuit breaker cabinet can be used in a rail transit DC traction power supply system. The manual tripping device of the circuit breaker provided by the present invention can directly perform a tripping operation without an electrical circuit during the debugging and maintenance of the circuit breaker, and the mechanism can be installed as a whole on a circuit breaker trolley related to the mechanism, which is simple and convenient to install, and convenient for later maintenance.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency manual opening device, characterized in that: It comprises a vertical manual release mechanism which can be pushed to trigger the circuit breaker to trip and a driving module which drives the vertical manual release mechanism to move. The driving module has at least one action unit, and the driving module drives the vertical manual release mechanism to move through the action unit.

2. The emergency manual opening device according to claim 1, characterized in that: The action unit includes a protruding portion, and when the highest point of the protruding portion contacts the vertical hand separation mechanism, the vertical hand separation mechanism is pushed up.

3. The emergency manual opening device according to claim 2, characterized in that: There are a plurality of protruding parts, and the protruding parts are arranged at intervals in a line.

4. The emergency manual opening device according to claim 1, characterized in that: The action unit comprises a flip plate. When the flip plate contacts and flips the vertical hand separation mechanism, the vertical hand separation mechanism is pushed up, and the flip plate is driven to flip by the flip mechanism.

5. The emergency manual opening device according to claim 4, characterized in that: The flipping mechanism includes a roller arranged at the edge of the flap and a slide for the roller to slide on, the slide has a slope peak and a slope valley, and the flap is gradually flipped during the process of the roller sliding from the slope valley to the slope peak.

6. The emergency manual opening device according to claim 5, characterized in that: There are multiple slope peaks.

7. The emergency manual opening device according to any one of claims 1 to 6, characterized in that: The driving module also includes a driving unit for sending the action unit to the position directly below the vertical hand separation mechanism.

8. The emergency manual opening device according to claim 7, characterized in that: The driving unit includes a slider on which the action unit is mounted and a push rod mechanism for driving the slider to move toward the vertical hand separation mechanism.

9. The emergency manual opening device according to claim 1, characterized in that: There are two action units, each of which is equipped with the vertical hand separation mechanism, and the two vertical hand separation mechanisms are located at different positions.

10. A DC circuit breaker cabinet, comprising a circuit breaker, characterized in that: It also includes an emergency manual tripping device as described in any one of claims 1 to 9, wherein the vertical manual tripping mechanism is pushed up to trigger the circuit breaker to trip.

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