A circuit breaker trolley with position enforced positioning

Abstract

The application relates to the field of circuit breaker trolleys, and particularly discloses a circuit breaker trolley with position forced positioning, which comprises a moving trolley frame and a static trolley frame, further comprises a locking mechanism, the locking mechanism comprises a driving rod, a driving sleeve and a connecting rod assembly, the driving rod is rotationally arranged on the static trolley frame and the moving trolley frame, the driving sleeve is slidably arranged on the driving rod, the driving rod can drive the sliding sleeve to rotate, the connecting rod assembly comprises a hinged rod and a locking rod, a locking hole is arranged on the outer side wall of the moving trolley frame, the locking rod is slidably arranged in the locking hole, and the two ends of the hinged rod are respectively hinged to the locking rod and the driving sleeve. The application has the effect of improving the stability of the circuit breaker trolley in the test station or the working station during the navigation of the ship.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of circuit breaker trolley, in particular to a circuit breaker trolley with position forced positioning. BACKGROUND

[0002] In order to facilitate the push-in and push-out of the circuit breaker, the circuit breaker is usually carried by the circuit breaker trolley on the switch cabinet.

[0003] In the related art, the circuit breaker trolley includes a movable trolley frame, a static trolley frame, and a screw rod. The static trolley frame is fixed in the switch cabinet, the circuit breaker is installed on the movable trolley frame, and the movable trolley frame can slide relative to the static trolley frame in the switch cabinet. The screw rod is rotationally arranged on the frame and is threadedly connected to the movable trolley frame. By rotating the screw rod, the movable trolley frame can be moved relative to the static trolley frame, so that the circuit breaker trolley is in a test station or a working station.

[0004] In the implementation of the present application, the inventors have found that at least the following problems exist in the prior art. When the circuit breaker trolley in the related art is used on a ship, the movable trolley frame is prone to shaking due to the large shaking amplitude of the ship during navigation. In the related art, the static trolley frame and the movable trolley frame are relatively locked by the screw rod when the circuit breaker trolley is in the test station and the working station, so that the impact caused by the shaking of the ship directly acts on the screw rod, which can easily cause the screw rod to break, so that the circuit breaker trolley is separated from the test station or the working station, and needs to be improved. SUMMARY

[0005] In order to improve the stability of the circuit breaker trolley in the test station or the working station during the navigation of the ship, the present application provides a circuit breaker trolley with position forced positioning.

[0006] The circuit breaker trolley with position forced positioning provided by the present application adopts the following technical solution:

[0007] A circuit breaker trolley with position forced positioning includes a movable trolley frame and a static trolley frame, and further includes a locking mechanism. The locking mechanism includes a driving rod, a driving sleeve, and a link assembly. The driving rod is rotationally arranged on the static trolley frame and the movable trolley frame. The driving sleeve is arranged on the driving rod. The driving rod can drive the driving sleeve to rotate together. The link assembly includes a hinged rod and a locking rod. A locking hole is formed in the outer side wall of the movable trolley frame. The locking rod is slidingly arranged in the locking hole. The two ends of the hinged rod are respectively hinged to the locking rod and the driving sleeve.

[0008] By adopting the technical scheme, when the circuit breaker handcart of the application is used, at least two holes for inserting the end of the locking rod are needed to be opened on the switch cabinet provided with the circuit breaker handcart of the application, when the circuit breaker handcart of the application is in the test position, the locking hole is aligned with one of the holes on the switch cabinet for inserting the end of the locking rod, and when the movable trolley is in the working position, the locking hole is aligned with the other hole on the switch cabinet for inserting the end of the locking rod.

[0009] When the movable trolley moves relative to the static trolley to make the circuit breaker handcart of the application be in the test position or the working position, the movable trolley slides relative to the driving rod, the driving sleeve sleeved on the driving rod slides relative to the movable trolley. When the circuit breaker handcart of the application is in the test position or the working position, the driving rod is rotated to drive the driving sleeve to rotate. The driving sleeve drives the locking rod to slide in the locking hole through the locking hinge rod, so that the locking rod moves away from the axis of the driving rod, the locking rod extends out of the locking hole and is inserted into the corresponding hole on the switch cabinet, at this time, the relative locking between the movable trolley and the switch cabinet is directly realized through the locking rod, that is, the integration between the movable trolley and the switch cabinet. The static trolley is fixed on the switch cabinet, so the relative position between the movable trolley and the static trolley is fixed and stable. In this way, even if the ship shakes due to wind and waves, the impact caused by the shaking of the ship is transferred to the locking rod, thereby improving the stability of the circuit breaker handcart in the test position or the working position during the navigation of the ship.

[0010] Optionally, the movable trolley is provided with a gap slot for sliding of the driving rod, and the driving rod is provided with at least two rotating ring grooves, the gap slot being used for rotation of the driving rod at the position provided with the rotating ring groove.

[0011] By adopting the technical scheme, when the movable trolley moves relative to the static trolley, the driving rod is slidably arranged in the gap slot, and the gap slot plays the role of gap and limiting, on the one hand, the driving rod can move relative to the movable trolley, and on the other hand, the rotation of the driving rod is limited. When the movable trolley moves relative to the static trolley to the position where the driving rod provided with the rotating ring groove is moved into the gap slot, since the gap slot is used for rotation of the driving rod at the position provided with the rotating ring groove, the driving rod can rotate at this time, that is, the driving rod can drive the locking rod to slide through the driving sleeve and the hinge rod, so that the movable trolley can be limited on the switch cabinet. According to the test position and the working position, the rotating ring grooves are correspondingly opened on the driving rod, so that when the movable trolley moves relative to the static trolley to the test position or the working position of the circuit breaker handcart of the application, the driving rod provided with the rotating ring groove is moved into the gap slot, the circuit breaker handcart of the application can be in the test position or the working position, the movable trolley can be locked, and the circuit breaker handcart of the application cannot lock the movable trolley when it is in the non-test position or the non-working position.

[0012] Optionally, the circuit breaker interlocking mechanism comprises a linkage slidingly arranged on the trolley frame and a cam for driving the linkage to slide, the cam is connected to the driving rod, the linkage is located in the rotation path of the cam, and the linkage comprises an unlocking post for extending into the circuit breaker and tripping the circuit breaker.

[0013] When the distance between the locking rod and the driving rod decreases, the distance between the unlocking post and the driving rod increases.

[0014] By adopting the above technical scheme, when the driving rod rotates, the driving rod drives the cam to rotate. Since the linkage is located in the rotation path of the driving cam, the linkage can be pushed to slide when the cam rotates. When the distance between the locking rod and the driving rod decreases, the distance between the unlocking post and the driving rod increases, that is, when the locking rod is retracted to unlock the trolley frame, the unlocking post moves away from the driving rod, and the unlocking post extends into the circuit breaker and trips the circuit breaker.

[0015] When the unlocking rod is retracted, that is, when the circuit breaker trolley is separated from the working station or the test station, the trolley frame can be driven to move relative to the static frame at this time. To ensure the safety of the circuit breaker trolley, the circuit breaker needs to be tripped when the trolley frame moves. Through the circuit breaker interlocking mechanism, when the trolley frame is in the middle position, the circuit breaker is automatically tripped, which not only improves the convenience of using the circuit breaker trolley, but also improves the safety performance of using the circuit breaker trolley.

[0016] Optionally, at least two guide sliding pins are arranged on the trolley frame,

[0017] A guide sliding groove extending in the sliding direction of the linkage is formed on the linkage, and each guide sliding pin is slidingly arranged in the guide sliding groove; or

[0018] At least two guide sliding grooves extending in the sliding direction of the linkage are formed on the linkage, and at least two guide sliding pins are slidingly arranged in different guide sliding grooves.

[0019] By adopting the above technical scheme, at least two guide sliding pins are slidingly arranged in the same guide sliding groove, or at least two guide sliding pins are slidingly arranged in different guide sliding grooves, which can effectively limit the deflection of the linkage during sliding, improve the stability of the sliding of the linkage, and thus improve the reliability of the unlocking post when performing tripping operation.

[0020] Optionally, a reset groove is formed on the cam, and a reset post is arranged on the linkage and slidingly arranged in the reset groove;

[0021] When the distance between the locking rod and the driving rod increases, the distance between the unlocking post and the driving rod decreases.

[0022] By adopting the technical scheme, when the circuit breaker trolley is in the working position or the test position, the driving rod is rotated to drive the locking rod to extend to lock the moving trolley frame, and the distance between the locking rod and the driving rod is increased. The driving rod drives the cam, the cam drives the reset column to move through the reset slot, the reset column drives the linkage to slide, so that the distance between the unlocking column and the driving rod is reduced, that is, the unlocking column is released from the limitation on keeping the circuit breaker in the open state, so that the operator can perform the closing operation. In this way, when the moving trolley frame is locked, the limitation of the locking column on the closing of the circuit breaker is released, and the convenience of the use and operation of the circuit breaker trolley is further improved.

[0023] Optionally, the linkage is located above the cam, and the linkage applies a downward rotating force to the cam by its own gravity.

[0024] By adopting the technical scheme, since the linkage is located above the cam, the gravity acting on the linkage is directly applied to the cam. When the moving trolley frame slides relative to the static trolley frame, the locking rod slides on the moving trolley frame, and the gap slot limits the rotation of the locking rod, so that the locking column can be kept extended to keep the circuit breaker in the open state. When the moving trolley frame moves to the working position or the test position of the circuit breaker trolley, the locking rod is moved to the gap slot at the position where the rotating ring slot is provided, and the locking rod can rotate. Under the action of the gravity of the linkage, the cam drives the locking rod to rotate, and the linkage resets. In this way, after the circuit breaker trolley is in the working position or the test position, the circuit breaker interlocking mechanism automatically releases the limitation on keeping the circuit breaker in the open state, and the convenience of the use and operation of the circuit breaker trolley is further improved.

[0025] Optionally, the driving mechanism includes a screw rod rotatably arranged on the static trolley frame and a threaded sleeve fixed to the moving trolley frame, the screw rod is in threaded connection with the threaded sleeve, and the static trolley frame is provided with an operation seat having an operation slot opposite to an end of the screw rod.

[0026] The operation mechanism includes a lock cylinder coaxially arranged on the static trolley frame and connected to the driving rod, a baffle slidingly arranged on the lock cylinder, and a linkage assembly arranged on the lock cylinder, the baffle is used to open and close the operation slot, and the lock cylinder and the baffle are connected through the linkage assembly.

[0027] When the driving rod is rotated to the maximum distance between the locking rod and the driving rod, the baffle shields the operation slot; and when the driving rod is rotated to the minimum distance between the locking rod and the driving rod, the baffle is staggered with the operation slot.

[0028] By adopting the technical scheme, when the movable trolley frame is driven to move, the worker operates the screw through the operation slot, and the screw drives the movable trolley frame to move through the threaded sleeve. When the locking rod is driven to lock or unlock the movable trolley frame, the key is first inserted into the lock core, and then the key is rotated to drive the driving rod to rotate through the lock core. When the lock core rotates, the baffle is driven to move through the linkage assembly. When the lock core is rotated to drive the driving rod to rotate to the maximum spacing between the locking rod and the driving rod, that is, when the locking rod locks the movable trolley frame, the lock core drives the baffle to shield the driving slot through the linkage assembly. At this time, the circuit breaker trolley is in a working state or a test state, and the baffle limits the worker from operating the screw. When the lock core is rotated to drive the driving rod to rotate to the minimum spacing between the locking rod and the driving rod, that is, when the locking rod unlocks the movable trolley frame, the lock core drives the baffle to move away from the operation slot through the linkage assembly. At this time, the worker can operate the screw through the operation slot.

[0029] Through the above structure, it is tried to avoid that the worker drives the movable trolley frame to move through the screw and the threaded sleeve when the circuit breaker trolley is in a working state or a test state, that is, when the circuit breaker may be in a closed state, thereby improving the safety performance of the circuit breaker trolley in use.

[0030] Optionally, a key hole for inserting the key is formed in the lock core, and a limiting plate is arranged on the static trolley frame. A rotating hole for rotating the lock core and a side hole communicating with the rotating hole are formed in the limiting plate. The side hole and the rotating hole both penetrate the limiting plate. The side hole is used for inserting the end of the key. The thickness of the limiting plate is less than the depth of the key hole. When the lock core is rotated to the state that the key hole communicates with the side hole, the baffle shields the operation slot.

[0031] By adopting the above technical scheme, when the lock core is rotated by the key, the lock core needs to be in the state that the key hole communicates with the side hole, and then the key is inserted into the key hole and the side hole. Since the thickness of the limiting plate is less than the depth of the key hole, when the key is inserted into the key hole, the end of the key can pass through the limiting plate through the side hole. Then, the key is rotated to rotate the lock core to the state that the key hole is away from the side hole. At this time, the end of the key is away from the side hole, and the limiting plate limits the key from being pulled out of the key hole.

[0032] In this way, in order to move the movable trolley frame, the key needs to be inserted into the key hole and the locking rod needs to be unlocked. Since the baffle shields the operation slot when the key hole communicates with the side hole, in order to pull out the key, the movable trolley frame needs to be locked by the locking rod. In this way, the safety performance of the circuit breaker trolley is further improved.

[0033] Optionally, the operation seat is provided with a guide slot communicated with the operation slot, and the baffle is slidingly arranged in the guide slot.

[0034] By adopting the technical scheme, when the lock cylinder rotates, the swing arm drives the linkage rod to rotate, the linkage rod slides in the linkage slot and drives the linkage plate to move. The baffle is slidingly arranged in the guide slot, thereby limiting the rotation of the baffle and the linkage plate. Through the above structure, the baffle can be driven to slide when the lock cylinder rotates, and the structure is simple and convenient to operate.

[0035] Optionally, the linkage assembly comprises a limiting rod connected to the static trolley frame, and the linkage plate is provided with a limiting slot extending in the same direction as the guide slot, and the limiting rod is slidingly arranged in the limiting slot.

[0036] By adopting the technical scheme, the limiting rod is slidingly arranged in the sliding slot, further limiting the rotation of the linkage plate and the baffle, and improving the stability of the linkage plate and the baffle when sliding.

[0037] In summary, the present application has at least one of the following beneficial technical effects:

[0038] 1. By the locking mechanism, when the circuit breaker trolley of the present application is in the working position or the test position, the movable trolley frame can be fixed relative to the switch cabinet, that is, the movable trolley frame is fixed relative to the static trolley frame. At this time, even if the ship equipped with the circuit breaker trolley of the present application shakes, the impact caused by the ship shaking will only act on the locking rod, thereby improving the stability of the circuit breaker trolley in the test position or the working position during the ship sailing.

[0039] 2. By the circuit breaker interlocking mechanism, when the movable trolley frame is in the middle position, the circuit breaker is automatically tripped. When the circuit breaker trolley of the present application is in the working position or the test position, the linkage member can automatically release the limitation of keeping the circuit breaker in the unlocked state. Not only the safety of the circuit breaker trolley of the present application is improved, but also the convenience of the operation of the circuit breaker is improved.

[0040] 3. By the driving mechanism, the key can be pulled out only when the circuit breaker trolley of the present application is in the working position or the test position. When the circuit breaker trolley of the present application is in the working position or the test position, the baffle shields the operation slot, thereby avoiding the misoperation of the screw rod by the worker as much as possible, and improving the safety of the circuit breaker trolley of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic view of the embodiment of the present application in the working position.

[0042] Figure 2 is a structural schematic view highlighting the driving mechanism when the embodiment of the present application is in the working position.

[0043] Figure 3 is a structural schematic view highlighting the operating mechanism when the embodiment of the present application is in the working position.

[0044] Figure 4 is a structural schematic view highlighting the operating mechanism when the embodiment of the present application is in the intermediate position.

[0045] Figure 5 is a structural schematic view highlighting the locking mechanism when the embodiment of the present application is in the working position.

[0046] Figure 6 is a structural schematic view highlighting the circuit breaker interlocking mechanism when the embodiment of the present application is in the working position.

[0047] Figure 7 is a structural schematic view highlighting the circuit breaker interlocking mechanism when the embodiment of the present application is in the working position.

[0048] BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 1. trolley frame; 11. trolley body; 111. locking hole; 112. guide sliding pin; 12. front clamping plate; 121. accommodation slot; 13. rear clamping plate; 2. static trolley frame; 21. operating seat; 211. operating slot; 212. guide slot; 22. limiting plate; 221. rotating hole; 222. side hole; 3. driving mechanism; 31. screw rod; 32. threaded sleeve; 4. locking mechanism; 41. driving rod; 411. rotating ring slot; 42. driving sleeve; 43. connecting rod assembly; 431. hinged rod; 432. locking rod; 5. operating mechanism; 51. lock cylinder; 511. key hole; 52. linkage assembly; 521. swing arm; 522. linkage rod; 523. linkage plate; 5231. linkage slot; 5232. limiting slot; 524. limiting rod; 53. baffle; 6. circuit breaker interlocking mechanism; 61. linkage; 611. sliding seat; 6111. guide sliding slot; 612. unlocking column; 613. extension plate; 614. reset column; 62. cam; 621. reset slot. DETAILED DESCRIPTION

[0050] The following will be described in detail in combination with the accompanying drawings. Figures 1-7 The present application will be further described in detail.

[0051] The embodiment of the present application discloses a circuit breaker trolley with position forced positioning. Referring to Figure 1The circuit breaker handcart with position forced positioning comprises a moving trolley 1 for slidingly arranged in a switch cabinet, a static trolley 2 for fixed on the switch cabinet, a driving mechanism 3 for driving the moving trolley 1 to move, a locking mechanism 4 for locking the moving trolley 1, an operating mechanism 5 for operating the locking mechanism 4, and a circuit breaker interlocking mechanism 6 for tripping the circuit breaker. The circuit breaker handcart of the present application is in the intermediate position when it is separated from the test station and the working station.

[0052] With reference to Figure 2 The moving trolley 1 comprises a trolley body 11, a front clamping plate 12 and a rear clamping plate 13, and the front clamping plate 12 and the rear clamping plate 13 are fixed on the trolley body 11. The driving mechanism 3 comprises a screw rod 31 and a threaded sleeve 32, the threaded sleeve 32 is located between the front clamping plate 12 and the rear clamping plate 13, and the threaded sleeve 32 is fixedly connected with the front clamping plate 12 and the rear clamping plate 13. The screw rod 31 is rotatably arranged on the static trolley 2, and the screw rod 31 penetrates and is rotatably arranged on the front clamping plate 12 and the rear clamping plate 13, and the screw rod 31 is threadedly connected with the threaded sleeve 32.

[0053] With reference to Figure 3 , Figure 4 The static trolley 2 is fixed with an operating seat 21, and the operating seat 21 is provided with an operating slot 211, and the operating slot 211 is opposite to the end of the screw rod 31, and the operating slot 211 is used for the operating personnel to rotate the screw rod 31.

[0054] With reference to Figure 1 , Figure 3 The operating mechanism 5 comprises a lock cylinder 51, a linkage assembly 52 and a baffle 53, and the lock cylinder 51 is rotatably arranged on the static trolley 2, and the lock cylinder 51 is provided with a key hole 511 for inserting a key. The static trolley 2 is fixed with a limiting plate 22, and the limiting plate 22 is provided with a rotating hole 221 and a side hole 222 communicated with the rotating hole 221, and the lock cylinder 51 is rotatably arranged in the rotating hole 221, and the side hole 222 is used for inserting the end of the key. The side hole 222 and the rotating hole 221 both penetrate the limiting plate 22, and the depth of the key hole 511 is greater than the thickness of the limiting plate 22.

[0055] With reference to Figure 3 , Figure 4The lock cylinder 51 and the baffle 53 are linked together by a linkage assembly 52, which includes a swing arm 521, a linkage rod 522, a linkage plate 523, and a limiting rod 524. One end of the swing arm 521 is fixed to the lock cylinder 51, and the linkage rod 522 is fixed to the other end of the swing arm 521. A guide groove 212 communicating with the operating groove 211 is provided on the side wall of the operating seat 21. The baffle 53 is slidably disposed in the guide groove 212 and is used to open and close the operating groove 211. The linkage plate 523 is fixed to the baffle 53, and a linkage groove 5231 passes through the linkage plate 523. The linkage groove 5231 is an oblong groove, and the linkage rod 522 is slidably disposed in the linkage groove 5231. The limiting rod 524 is fixed to the stationary frame 2, and a limiting groove 5232 extending in the same direction as the operating groove 211 passes through the linkage plate 523. The limiting rod 524 is slidably disposed in the limiting groove 5232.

[0056] Reference Figure 3 , Figure 4 When the lock cylinder 51 is rotated, it rotates via the linkage rod 522 of the swing arm 521. The linkage rod 522 slides in the linkage groove 5231 and pushes the linkage plate 523 to move. The linkage plate 523 drives the baffle 53 to move, and the guide groove 212 restricts the rotation of the baffle 53. The limiting rod 524 is slidably set in the limiting groove 5232 to further restrict the rotation of the baffle 53. When the lock cylinder 51 rotates to the point where the keyhole 511 communicates with the side hole 222, the baffle 53 covers the operating groove 211.

[0057] Reference Figure 2 , Figure 5 The locking mechanism 4 includes a drive rod 41, a drive sleeve 42, and two sets of connecting rod assemblies 43. The drive rod 41 is a square rod, and its extension direction is consistent with that of the screw 31. The drive rod 41 is rotatably mounted on the stationary frame 2. The lock cylinder 51 is fixedly connected to the drive rod 41, and the axis of the lock cylinder 51 is collinear with the axis of the drive rod 41. Two rotating annular grooves 411 are provided on the drive rod 41. A clearance groove 121, which is a square groove, is provided through the front clamping plate 12. The clearance groove 121 is used for sliding of the drive rod 41 and also for rotation of the drive rod 41 at the location where the rotating annular grooves 411 are provided. The drive rod 41 is slidably mounted on the rear clamping plate 13 and can rotate on the rear clamping plate 13.

[0058] Reference Figure 2 , Figure 5 When the moving frame 1 moves relative to the stationary frame 2 to the working position of the circuit breaker trolley of this application, one of the drive rods 41 with a rotating ring groove 411 moves into the clearance groove 121; when the moving frame 1 moves relative to the stationary frame 2 to the test position of the circuit breaker trolley of this application, the other drive rod 41 with a rotating ring groove 411 moves into the clearance groove 121.

[0059] ReferenceFigure 5 The driving sleeve 42 is sleeved on the driving rod 41, and the driving rod 41 can drive the driving sleeve 42 to rotate. The two sets of linkage assemblies 43 are centrally symmetrical about the axis of the driving rod 41, and each linkage assembly 43 comprises a hinged rod 431 and a locking rod 432. One end of the hinged rod 431 is hinged to the driving sleeve 42, and the other end of the hinged rod 431 is hinged to the end of the locking rod 432. The two opposite side walls of the vehicle body 11 are each provided with a locking hole 111, and the two locking holes 111 are aligned, and the two locking rods 432 are respectively sleeved in different locking holes 111.

[0060] Referring to Figures 3-5 When the driving rod 41 rotates to the maximum distance between the locking rod 432 and the driving rod 41, the baffle 53 shields the operation slot 211; when the driving rod 41 rotates to the minimum distance between the locking rod 432 and the driving rod 41, the baffle 53 is misaligned with the operation slot 211.

[0061] Referring to Figure 6 , Figure 7 The circuit breaker interlocking mechanism 6 comprises a linkage 61 and a cam 62. The linkage 61 comprises a sliding seat 611 slidingly arranged on the vehicle body 11 and an unlocking column 612 fixed on the upper side of the sliding seat 611, and the unlocking column 612 is used to extend into the circuit breaker and trip the circuit breaker. Three guide sliding pins 112 are fixed on the vehicle body 11, and two of the guide sliding pins 112 are arranged in the vertical direction. Two guide sliding grooves 6111 are formed in the sliding seat 611, and the two guide sliding grooves 6111 extend in the vertical direction. The two guide sliding pins 112 arranged in the vertical direction are slidingly arranged in one guide sliding groove 6111, and the other guide sliding pin 112 is slidingly arranged in the other guide sliding groove 6111. In other embodiments, only two guide sliding pins 112 arranged in the vertical direction can be slidingly arranged in one guide sliding groove 6111, or the two guide sliding pins 112 can be slidingly arranged in different guide sliding grooves 6111. Any mode that can achieve the vertical sliding guide of the sliding seat 611 is acceptable.

[0062] Referring to Figure 6 , Figure 7 The cam 62 is sleeved and fixed on the driving rod 41, and the cam 62 is located below the sliding seat 611. The cam 62 is used to drive the sliding seat 611 to slide, and the sliding seat 611 is located on the rotation path of the cam 62. The unlocking column 612 and the sliding seat 611 exert a downward rotating force on the cam 62 through their own gravity. An extension plate 613 is fixed below the sliding seat 611, and a reset column 614 is fixed on the extension plate 613. A reset groove 621 is formed in the cam 62, and the reset groove 621 is a waist-shaped groove. When the distance between the locking rod 432 and the driving rod 41 decreases, the distance between the unlocking column 612 and the driving rod 41 increases; when the distance between the locking rod 432 and the driving rod 41 increases, the distance between the unlocking column 612 and the driving rod 41 decreases.

[0063] The implementation principle of the circuit breaker trolley with position forced positioning according to the embodiment of the application is as follows: when the circuit breaker trolley is installed, four holes are formed on the switch cabinet, two of which are used for inserting the ends of the two locking rods 432 when the circuit breaker trolley is in the working position, and the other two are used for inserting the ends of the two locking rods 432 when the circuit breaker trolley is in the test position.

[0064] When the driving trolley frame 1 is moved relative to the static trolley frame 2, the key is first inserted into the key hole 511, the end of the key is inserted into the side hole 222, and then the lock core 51 is rotated by the key. The key hole 511 is misaligned with the side hole 222 to limit the key from being pulled out of the key hole 511. The lock core 51 moves the baffle 53 to misalign with the operation groove 211 through the linkage assembly 52, so that the worker can operate the screw rod 31 through the operation groove 211. The lock core 51 also drives the driving rod 41 to rotate, at this time the driving rod 41 drives the two locking rods 432 to retract through the driving sleeve 42 and the two hinged rods 431, that is, the ends of the two locking rods 432 are pulled out of the holes on the switch cabinet, at this time the driving trolley frame 1 can be moved relative to the static trolley frame 2. At the same time, the driving rod 41 also drives the cam 62 to rotate, and the cam 62 lifts the sliding seat 611 upward to lift the unlocking column 612 upward. The circuit breaker is installed at the upper end of the driving trolley frame 1, and the unlocking column 612 is inserted into the circuit breaker and makes the circuit breaker open. At this time, rotating the screw rod 31 can move the driving trolley frame 1 through the threaded sleeve 32. The driving rod 41 is provided with a rotating ring groove 411 misaligned with the accommodation groove 121, and the driving rod 41 is slidingly arranged in the accommodation groove 121 to lock the driving rod 41, which limits the rotation of the driving rod 41. On the one hand, it limits the rotation of the lock core 51, so that the key cannot be pulled out of the key hole 511; on the other hand, it supports the cam 62, so that the sliding seat 611 can keep the unlocking column 612 in the state of extending into the circuit breaker.

[0065] When the driving trolley frame 1 is moved relative to the static trolley frame 2 to the working position or the test position of the circuit breaker trolley, the driving rod 41 is moved relative to the front clamping plate 12 to the rotating ring groove 411 on the driving rod 41, which is moved into the accommodation groove 121, so that the driving rod 41 can rotate. By rotating the lock core 51 with the key, the driving rod 41 drives the locking rod 432 to extend into and insert into the hole on the switch cabinet through the driving sleeve 42 and the hinged rod 431, so that the driving trolley frame 1 is fixed relative to the switch cabinet. The driving rod 41 drives the sliding seat 611 and the unlocking rod to move downward and reset through the cam 62, the reset groove 621, the reset rod and the extension plate 613, so that the worker can close the circuit breaker. At this time, the driving trolley frame 1 is fixed relative to the static trolley frame 2, even if the ship is shaken by the wind and waves, the impact caused by the shaking is transferred to the locking rod 432, so that the screw rod 31 is not easy to break, and the stability of the circuit breaker trolley in the test position or the working position during the navigation of the ship is improved.

[0066] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A circuit breaker trolley with position forced positioning, comprising a moving trolley frame (1) and a static trolley frame (2), characterized in that: The locking mechanism (4) comprises a driving rod (41), a driving sleeve (42) and a linkage assembly (43), the driving rod (41) is rotationally arranged on the static frame (2) and the movable frame (1), the driving sleeve (42) is slidingly arranged on the driving rod (41), the driving rod (41) can drive the driving sleeve (42) to rotate, the linkage assembly (43) comprises a hinged rod (431) and a locking rod (432), a locking hole (111) is arranged on the outer side wall of the movable frame (1), the locking rod (432) is slidingly arranged in the locking hole (111), and two ends of the hinged rod (431) are hingedly connected to the locking rod (432) and the driving sleeve (42) respectively; The circuit breaker interlocking mechanism (6) comprises a linkage (61) slidingly arranged on the movable frame (1) and a cam (62) for driving the linkage (61) to slide, the cam (62) is connected to the driving rod (41), the linkage (61) is located on the rotation path of the cam (62), and the linkage (61) comprises an unlocking column (612) for extending into the circuit breaker and making the circuit breaker trip. When the distance between the locking rod (432) and the driving rod (41) decreases, the distance between the unlocking column (612) and the driving rod (41) increases.

2. A circuit breaker truck with positive positioning of the circuit breaker according to claim 1, characterized in that: The movable frame (1) is provided with a gap slot (121) for sliding of the driving rod (41), and the driving rod (41) is provided with at least two rotating ring grooves (411), and the gap slot (121) is used for rotation of the driving rod (41) at the position provided with the rotating ring grooves (411).

3. The circuit breaker truck with positive positioning of claim 1, wherein: The movable frame (1) is provided with at least two guide sliding pins (112), The linkage (61) is provided with a guide sliding groove (6111) extending in the sliding direction of the linkage (61), and each guide sliding pin (112) is slidingly arranged in the guide sliding groove (6111); or The linkage (61) is provided with at least two guide sliding grooves (6111) extending in the sliding direction of the linkage (61), and at least two guide sliding pins (112) are slidingly arranged in different guide sliding grooves (6111).

4. The circuit breaker truck with positive positioning of claim 1, wherein: The cam (62) is provided with a reset slot (621), and the linkage (61) is provided with a reset column (614) slidingly arranged in the reset slot (621). When the distance between the locking rod (432) and the driving rod (41) increases, the distance between the unlocking column (612) and the driving rod (41) decreases.

5. The circuit breaker truck with positive positioning of the circuit breaker according to claim 1, characterized in that: The linkage (61) is located above the cam (62), and the linkage (61) applies a downward rotating force to the cam (62) through its own gravity.

6. The circuit breaker truck with positive positioning of the circuit breaker according to claim 1, characterized in that: Also include driving mechanism (3) and operating mechanism (5), the driving mechanism (3) includes the screw rod (31) rotatably arranged on the static frame (2) and the threaded sleeve (32) fixed on the moving frame (1), the screw rod (31) is in threaded connection with the threaded sleeve (32), the static frame (2) is provided with an operating seat (21), the operating seat (21) is provided with an operating slot (211) facing the end of the screw rod (31); The operating mechanism (5) includes a lock cylinder (51) coaxially arranged on the static frame (2) and connected to the driving rod, a baffle (53) slidably arranged on the static frame (2), and a linkage assembly (52) arranged on the lock cylinder (51), the baffle (53) is used to open and close the operating slot (211), and the lock cylinder (51) and the baffle (53) are connected through the linkage assembly (52). When the driving rod (41) rotates to the maximum distance between the locking rod (432) and the driving rod (41), the baffle (53) shields the operating slot (211); when the driving rod (41) rotates to the minimum distance between the locking rod (432) and the driving rod (41), the baffle (53) is misaligned with the operating slot (211).

7. A circuit breaker truck with positive positioning of the circuit breaker according to claim 6, characterized in that: The lock cylinder (51) is provided with a key hole (511) for inserting a key, the static frame (2) is provided with a limiting plate (22), the limiting plate (22) is provided with a rotating hole (221) for rotatably arranging the lock cylinder (51) and a side hole (222) communicating with the rotating hole (221), the side hole (222) and the rotating hole (221) penetrate the limiting plate (22), the side hole (222) is used for inserting the end of the key, the thickness of the limiting plate (22) is less than the depth of the key hole (511), when the lock cylinder (51) rotates to the key hole (511) and the side hole (222) are communicated, the baffle (53) shields the operating slot (211).

8. The circuit breaker truck with positive positioning of the circuit breaker according to claim 6, characterized in that: The operating seat (21) is provided with a guide slot (212) communicating with the operating slot (211), the baffle (53) is slidably arranged in the guide slot (212), the linkage assembly (52) includes a swing arm (521) connected to the lock cylinder (51), a linkage rod (522) connected to the swing arm (521), and a linkage plate (523) connected to the baffle (53), the linkage plate (523) is provided with a linkage slot (5231) for sliding the linkage rod (522).

9. A circuit breaker truck with positive positioning of the circuit breaker according to claim 8, characterized in that: The linkage assembly (52) includes a limiting rod (524) connected to the static frame (2), the linkage plate (523) is provided with a limiting slot (5232) extending in the same direction as the guide slot (212), and the limiting rod (524) is slidably arranged in the limiting slot (5232).

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