Frame circuit breaker position locking device and frame circuit breaker

Abstract

The utility model belongs to the technical field of circuit breakers, and discloses a frame circuit breaker position locking device and a frame circuit breaker. The frame circuit breaker position locking device drives the circuit breaker body to move in the first direction through the driving assembly and the first transmission assembly, and drives the lock catch to slide in the second direction through the driving assembly and the second transmission assembly, and the locking assembly, the second transmission assembly and the lock catch are matched. According to the position locking device for the frame circuit breaker, the driving assembly is arranged on the circuit breaker body to lock the driving assembly when the circuit breaker body moves to the preset position, accidental movement or dislocation of the circuit breaker body is effectively prevented, the position accuracy of the circuit breaker body is guaranteed, the safety of the frame circuit breaker is improved, and the position locking device for the frame circuit breaker is simple in structure and high in stability, reduces the assembling difficulty and improves the assembling efficiency. The assembling efficiency is improved, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a frame circuit breaker position locking device and a frame circuit breaker. Background Art

[0002] The drawer-type frame circuit breaker is mainly composed of a drawer seat and a circuit breaker body that can be pulled out of the drawer seat. The circuit breaker body has three positions in sequence when entering the drawer seat: separation position, test position, and connection position. The movement of the circuit breaker body entering or exiting the drawer seat is realized by a series of mechanical structures and transmission. During the movement, the circuit breaker body must also be locked in the corresponding three positions in the drawer seat to enable the circuit breaker body to stop at a certain position.

[0003] However, the existing three-position locking device for the frame circuit breaker drawer has many parts and a relatively complex structure, which leads to the defects of increased product cost, complicated assembly and poor stability of the assembled product.

[0004] Therefore, there is an urgent need for a frame circuit breaker position locking device and a frame circuit breaker to solve the problems in the prior art. Utility Model Content

[0005] The utility model aims to provide a frame circuit breaker position locking device, which has a simple structure, high stability, reduces assembly difficulty, improves assembly efficiency, and saves production costs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Frame circuit breaker position locking device, including:

[0008] A driving mechanism is arranged in the frame, the driving mechanism comprises a driving assembly, a first transmission assembly and a second transmission assembly, the first transmission assembly and the second transmission assembly are both in transmission connection with the driving assembly, the circuit breaker body is arranged on the output end of the first transmission assembly, and the driving assembly drives the circuit breaker body to move along the first direction through the first transmission assembly;

[0009] A lock buckle is slidably disposed in the frame along a second direction, and the driving assembly drives the lock buckle to move along the second direction through the second transmission assembly, and the second direction is perpendicular to the first direction;

[0010] A locking assembly, wherein the locking assembly, the second transmission assembly and the lock catch cooperate to lock the drive assembly when the circuit breaker body moves to a preset position.

[0011] Optionally, the driving assembly comprises:

[0012] A fixing plate, arranged on the bottom plate of the frame;

[0013] A lead screw, rotatably connected to the fixed plate;

[0014] A first slide plate is slidably disposed on the bottom plate along the first direction, and the first slide plate is threadedly connected to the lead screw;

[0015] A second slide plate is slidably disposed on the side plate of the frame along the first direction, and the circuit breaker body is disposed on the second slide plate;

[0016] The input end of the first transmission assembly is transmission-connected to the first slide plate, and the output end of the first transmission assembly is transmission-connected to the second slide plate.

[0017] Optionally, the second transmission assembly includes a transmission shaft, which is transmission-connected to the first slide, and a chuck and a cam are provided on the transmission shaft. When the first slide moves along the first direction to drive the transmission shaft to rotate, the cam drives the lock to move along the second direction, so that the relative position of the lock and the locking assembly changes, so that the chuck allows or prevents the locking assembly from locking or unlocking the screw.

[0018] Optionally, the transmission shaft is rotatably arranged on the fixed plate, a spiral guide rail is provided on the transmission shaft, a first assembly hole is provided on the first slide plate, a first boss is provided on the side wall of the first assembly hole, the transmission shaft is passed through the first assembly hole, and the first boss is slidably connected to the spiral guide rail.

[0019] Optionally, the lock comprises:

[0020] A lock body is arranged on the bottom plate along the second direction, a fixing pin is arranged on the bottom plate, one end of a first elastic member is connected to the lock body, and the other end is connected to the fixing pin;

[0021] A first stop arm is disposed on the lock body;

[0022] The second boss is arranged on a side of the first block arm close to the cam, and the cam drives the first block arm to move along the second direction through the second boss, so that after the relative position of the first block arm and the locking assembly is changed, the chuck allows or prevents the locking assembly from locking or unlocking the screw.

[0023] Optionally, the lock body is provided with at least one guide hole extending along the second direction, and the bottom plate is provided with at least one guide column, and the guide column passes through the guide hole.

[0024] Optionally, the chuck is provided with a slot, and the locking assembly comprises:

[0025] A locking matching block is slidably disposed in the frame along the first direction, and a limiting column and a latch are provided on the locking matching block;

[0026] A card plate, the card plate is located between the locking matching block and the fixing plate, the card plate is provided with a polygonal hole, the lead screw is passed through the polygonal hole, and the lead screw is provided with a polygonal locking portion that matches the polygonal hole;

[0027] A second elastic member, one end of which is in contact with the fixing plate, and the other end of which is in contact with the clamping plate;

[0028] The limiting column abuts against the first stop arm in the first direction, the latch tongue is not inserted into the slot, the polygonal hole is separated from the polygonal locking part, and the lead screw is not locked; the limiting column abuts against the first stop arm in the second direction, the latch tongue is inserted into the slot, the polygonal hole is sleeved with the polygonal locking part, and the lead screw is locked.

[0029] Optionally, a second assembly hole is provided in the middle of the locking mating block, buttons and convex rods are provided on both sides of the locking mating block, the second assembly hole is sleeved on the lead screw, a second through hole is provided on the fixing plate, and the convex rod is slidably penetrated in the second through hole;

[0030] One end of the clamping plate close to the protruding rod portion is provided with a clamping opening, and the protruding rod portion is slidably inserted into the clamping opening.

[0031] Optionally, an indicating portion is provided on the transmission shaft, an indicating mark is provided on the indicating portion, a position mark is provided on the frame, and when the circuit breaker body moves to the preset position, the indicating mark points to the position mark.

[0032] Another object of the utility model is to provide a frame circuit breaker, which locks the circuit breaker body in a preset position, effectively preventing the circuit breaker body from accidentally moving or misaligning, ensuring the accuracy of the position of the circuit breaker body, and improving the safety and reliability of the frame circuit breaker.

[0033] To achieve this purpose, the utility model adopts the following technical solutions:

[0034] A frame circuit breaker comprises a frame, a circuit breaker body and the above-mentioned frame circuit breaker position locking device, wherein the circuit breaker body is movably arranged in the frame, and the frame circuit breaker position locking device is used to lock the circuit breaker body in a preset position.

[0035] Beneficial effects:

[0036] The frame circuit breaker position locking device provided by the utility model drives the circuit breaker body to move along the first direction through the driving component and the first transmission component, and drives the lock buckle to slide along the second direction through the driving component and the second transmission component. The locking component, the second transmission component and the lock buckle cooperate to lock the driving component when the circuit breaker body moves to a preset position, effectively preventing the circuit breaker body from accidentally moving or dislocating, ensuring the accuracy of the position of the circuit breaker body, and improving the safety of the frame circuit breaker. The frame circuit breaker position locking device has a simple structure and high stability, reduces the difficulty of assembly, improves the assembly efficiency, and saves production costs.

[0037] The frame circuit breaker provided by the utility model comprises a frame, a circuit breaker body and the above-mentioned frame circuit breaker position locking device. The circuit breaker body is movably arranged in the frame. The frame circuit breaker position locking device is used to lock the circuit breaker body in a preset position, effectively preventing the circuit breaker body from accidentally moving or dislocating, ensuring the accuracy of the position of the circuit breaker body, and improving the safety and reliability of the frame circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a frame circuit breaker position locking device provided in Embodiment 1 of the utility model;

[0039] Figure 2 It is an exploded view of the frame circuit breaker position locking device provided in the first embodiment of the utility model;

[0040] Figure 3 It is a structural schematic diagram of the second transmission assembly provided in the first embodiment of the utility model;

[0041] Figure 4 is an exploded view of the locking assembly provided in the first embodiment of the utility model;

[0042] Figure 5 It is a structural schematic diagram of a frame circuit breaker position locking device when the circuit breaker body is in a separated position in the second embodiment of the utility model;

[0043] Figure 6 It is a structural schematic diagram of the frame circuit breaker position locking device in the second embodiment of the utility model when the circuit breaker body is in the separated position and just unlocked;

[0044] Figure 7 It is a structural schematic diagram of the frame circuit breaker position locking device when the circuit breaker body is in the test position in the second embodiment of the utility model;

[0045] Figure 8 It is a structural schematic diagram of the frame circuit breaker position locking device in the second embodiment of the utility model when the circuit breaker body is in the test position and just unlocked;

[0046] Fig. 9 It is a structural schematic diagram of a frame circuit breaker position locking device when the circuit breaker body is in the connection position in the second embodiment of the utility model;

[0047] Fig.10 It is a structural schematic diagram of the frame circuit breaker position locking device in the second embodiment of the utility model when the circuit breaker body is in the connection position and has just been unlocked.

[0048] In the figure:

[0049] 10. Frame; 11. Bottom plate; 12. Side plate; 13. Guide column;

[0050] 100, driving mechanism; 110, fixing plate; 111, second through hole; 120, lead screw; 121, polygonal locking portion; 122, limiting boss; 123, limiting nut; 130, first slide plate; 131, first plate body; 1311, tooth hole; 132, second plate body; 1321, threaded hole; 1322, first assembly hole; 1323, first boss; 140, second slide plate; 141, roller; 150, first transmission assembly; 151, rotating shaft; 152, first tooth plate; 153, second tooth plate; 154, second tooth plate; 155, second tooth plate; 156, second tooth plate; 157, second tooth plate; 158, second tooth plate; 159, first transmission assembly; 160, first transmission assembly; 161, rotating shaft; 162, first tooth plate; 163, first tooth plate; 164, first tooth plate; 165, first tooth plate; 166, first tooth plate; 167, first tooth plate; 168, first tooth plate; 169, first tooth plate; 170, first tooth plate; 171, first tooth plate; 172, first tooth plate; 173, first tooth plate; 174, first tooth plate; 175, first tooth plate; 176, first tooth plate; 177, first tooth plate; 178, first tooth plate; 179, first tooth plate; 180, first transmission assembly; 181, first tooth plate; 182, first tooth plate; 183, first tooth plate; 184, first tooth plate; 185, first tooth plate; 186, first tooth plate; 187, first tooth plate; 188, first tooth plate; 189, first tooth plate; 190, first transmission assembly; 19 3. second tooth plate; 154. third tooth plate; 1541. special-shaped opening groove; 160. second transmission assembly; 161. transmission shaft; 1611. spiral guide rail; 162. cam; 1621. first protrusion; 1622. second protrusion; 1623. first abutment position; 1624. second abutment position; 1625. third abutment position; 163. chuck; 1631. first slot; 1632. second slot; 1633. third slot; 164. indication portion; 1641. indication mark;

[0051] 200, lock buckle; 210, lock buckle body; 211, guide hole; 220, first stop arm; 230, second boss; 240, second stop arm; 250, reinforcing rib;

[0052] 300, locking assembly; 310, locking matching block; 311, limiting column; 312, convex plate; 313, latching tongue; 314, second assembly hole; 315, convex rod; 316, button; 317, avoidance hole; 320, latching plate; 321, polygonal hole; 322, bayonet; 330, second elastic member;

[0053] 400. First elastic member; 500. Fixing pin. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0055] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0058] Embodiment 1

[0059] This embodiment provides a frame circuit breaker position locking device, such as Figure 1-Figure 4As shown, the frame circuit breaker position locking device includes a driving mechanism 100, a lock catch 200 and a locking assembly 300. The driving mechanism 100 is arranged in the frame 10. The driving mechanism 100 includes a first transmission assembly 150 and a second transmission assembly 160. The first transmission assembly 150 and the second transmission assembly 160 are both connected to the driving mechanism 100 in a transmission manner. The circuit breaker body is arranged on the output end of the first transmission assembly 150. The driving assembly drives the circuit breaker body to move along the first direction through the first transmission assembly 150. The lock catch 200 is slidably arranged in the frame 10 along the second direction. The moving assembly is driven by the second transmission assembly 160 to move in the second direction, and the second direction is perpendicular to the first direction. The locking assembly 300, the second transmission assembly 160 and the lock buckle 200 cooperate so that the locking assembly 300 locks the driving mechanism 100 when the circuit breaker body moves to a preset position, effectively preventing the circuit breaker body from accidentally moving or dislocating, ensuring the accuracy of the position of the circuit breaker body, and improving the safety of the frame circuit breaker. The frame circuit breaker position locking device has a simple structure, high stability, reduced assembly difficulty, improved assembly efficiency, and saved production costs.

[0060] Alternatively, if Figure 1-Figure 2 As shown, the driving assembly includes a fixed plate 110, a lead screw 120, a first slide plate 130, and a second slide plate 140. The fixed plate 110 is arranged on the bottom plate 11 of the frame 10, the lead screw 120 is rotatably connected to the fixed plate 110, the first slide plate 130 is slidably arranged in the frame 10 along the first direction, and the first slide plate 130 is threadedly connected to the lead screw 120; the second slide plate 140 is slidably arranged on the side plate 12 of the frame 10 along the first direction, the circuit breaker body is arranged on the second slide plate 140, the input end of the first transmission assembly 150 is transmission-connected with the first slide plate 130, and the output end of the first transmission assembly 150 is transmission-connected with the second slide plate 140. When the lead screw 120 rotates, the lead screw 120 drives the first slide plate 130 to move along the first direction, transmits power to the second slide plate 140 through the first transmission assembly 150, and drives the second slide plate 140 to move along the first direction, so that the circuit breaker body on the second slide plate 140 moves along the first direction, so as to adjust the position of the circuit breaker body in the frame 10 as needed. The driving mechanism 100 is easy to operate, and the movement of the circuit breaker body can be achieved by rotating the lead screw 120 without complicated adjustment steps, thereby improving the efficiency and convenience of operation.

[0061] Alternatively, if Figure 2 and Figure 5As shown, a first through hole is provided on the fixing plate 110, and the lead screw 120 is passed through the first through hole and is rotatably connected to the fixing plate 110. A limiting boss 122 and a limiting nut 123 are provided on the lead screw 120, and the limiting boss 122 and the limiting nut 123 are respectively located on both sides of the fixing plate 110. The limiting boss 122 and the limiting nut 123 are used to limit the lead screw 120 from escaping from the fixing plate 110, and the setting of the limiting nut 123 facilitates the assembly of the lead screw 120 on the fixing plate 110, or the removal of the lead screw 120 from the fixing plate 110, thereby improving the disassembly and assembly efficiency.

[0062] Optionally, the first slide plate 130 includes a first plate body 131 and a second plate body 132, the second plate body 132 is perpendicular to the first plate body 131, a threaded hole 1321 is provided on the second plate body 132, the lead screw 120 is passed through the threaded hole 1321 and is threadedly connected to the second plate body 132, and a plurality of tooth holes 1311 are arranged on the first plate body 131 at intervals along the first direction; the first transmission assembly 150 includes a rotating shaft 151, a first tooth plate 152, a second tooth plate 153 and a third tooth plate 154, the rotating shaft 151 is rotatably arranged on the bottom plate 11, the first tooth plate 152 The third tooth plate 154 is coaxially fixed on the rotating shaft 151 with the second tooth plate 153, and is rotatably set on the frame 10. The first tooth plate 152 is engaged with the tooth hole 1311, and the second tooth plate 153 is engaged with the third tooth plate 154. The third tooth plate 154 is provided with a special-shaped opening groove 1541, and the second slide plate 140 is provided with a roller 141. During the rotation of the third tooth plate 154, the special-shaped opening groove 1541 cooperates with the roller 141 to drive the second slide plate 140 to move along the first direction, so that the circuit breaker body on the second slide plate 140 moves along the first direction.

[0063] It should be noted that the specific shape of the special-shaped opening groove 1541 is an existing technical means in this field, and the specific shape of the special-shaped opening groove 1541 and the principle of the special-shaped opening groove 1541 and the roller 141 cooperating to drive the second slide 140 to move will not be described in detail here.

[0064] Alternatively, if Figure 3As shown, the second transmission assembly 160 includes a transmission shaft 161, which is transmission-connected with the first slide 130, and a chuck 163 and a cam 162 are provided on the transmission shaft 161. When the first slide 130 moves along the first direction to drive the transmission shaft 161 to rotate, the cam 162 drives the lock catch 200 to move along the second direction, so that the relative position of the lock catch 200 and the locking assembly 300 changes, so that the chuck 163 allows or prevents the locking assembly 300 from locking or unlocking the lead screw 120. The cam 162 and the chuck 163 are integrally arranged with the transmission shaft 161. When the transmission shaft 161 rotates, the cam 162 cooperates with the lock catch 200, and the chuck 163 cooperates with the locking assembly 300 to realize complex locking and unlocking functions, simplifying the overall structure of the circuit breaker position locking device of the frame 10, and reducing the number and complexity of components.

[0065] Optionally, the transmission shaft 161 is rotatably disposed on the fixed plate 110, a spiral guide rail 1611 is disposed on the transmission shaft 161, a first assembly hole 1322 is disposed on the first slide plate 130, a first boss 1323 is disposed on the side wall of the first assembly hole 1322, the transmission shaft 161 is passed through the first assembly hole 1322, and the first boss 1323 is slidably connected with the spiral guide rail 1611. Specifically, during the forward and backward movement of the first slide plate 130, the first boss 1323 slides relatively along the spiral guide rail 1611, thereby rotating the transmission shaft 161, and when the transmission shaft 161 rotates, the cam 162 and the chuck 163 rotate synchronously with the transmission shaft 161, and then the cam 162 drives the lock buckle 200 to move along the second direction, so that the relative position of the lock buckle 200 and the locking assembly 300 changes, so that the chuck 163 allows or prevents the locking assembly 300 from locking or unlocking the lead screw 120. The transmission structure of the transmission shaft 161 and the first slide plate 130 is simple, and the transmission process is stable and reliable, thereby improving the reliability of the frame circuit breaker position locking device.

[0066] Alternatively, if Figure 4As shown, the frame circuit breaker position locking assembly 300 also includes a first elastic member 400 and a fixing pin 500, the lock 200 includes a lock body 210, a first stop arm 220 and a second boss 230, the lock body 210 is slidably arranged on the bottom plate 11 of the frame 10 along the second direction, and a fixing pin 500 is provided on the bottom plate 11, one end of the first elastic member 400 is connected to the lock body 210, and the other end is connected to the fixing pin 500; the first stop arm 220 is arranged on the lock body 210, and the second boss 230 is arranged on one side of the first stop arm 220, the cam 162 drives the first stop arm 220 to move along the second direction through the second boss 230, so that after the relative position of the first stop arm 220 and the locking assembly 300 is changed, the chuck 163 allows or prevents the locking assembly 300 from locking or unlocking the screw 120. The first elastic member 400 is provided to provide a resetting elastic force for the lock buckle 200, and can quickly drive the lock buckle 200 to return to the initial position after the locking assembly 300 is unlocked, so as to prepare for the next locking operation. In this embodiment, the first elastic member 400 is a tension spring, which has a simple structure, reduces production costs, and can provide sufficient elastic force for resetting the lock buckle 200.

[0067] Specifically, a protrusion is provided on the cam 162, and the second boss 230 abuts against the outer peripheral surface of the cam 162. When the driving mechanism 100 drives the cam 162 to rotate through the transmission shaft 161, the cam 162 drives the lock buckle 200 to move along the second direction through the protrusion. In order to facilitate understanding of the locking principle, it is defined that when the locking assembly 300 does not lock the driving mechanism 100, the position of the locking assembly 300 is the unlocking position, and when the locking assembly 300 locks the driving mechanism 100, the position of the locking assembly 300 is the locking position. The operator operates the driving mechanism 100 to drive the circuit breaker body to move in the frame 10. The driving mechanism 100 drives the cam 162 to rotate through the transmission shaft 161, and the raised portion of the cam 162 gradually abuts against the second boss 230. Before the second boss 230 and the raised portion are not completely abutted (not completely abutting can be understood as the second boss 230 not abutting against the farthest point on the cam 162 from the rotation axis of the cam 162), the first stop arm 220 keeps the locking assembly 300 in the unlocked position, thereby ensuring that the driving mechanism 100 can normally drive the circuit breaker body to move. At this time, the locking assembly 300 is not in contact with the chuck 163; as the driving mechanism 100 continues to drive the circuit breaker When the circuit breaker body moves, before the second boss 230 completely abuts against the raised portion (complete abutment can be understood as the second boss 230 abutting against the farthest point on the cam 162 from the rotation axis of the cam 162), the first stop arm 220 and the locking assembly 300 are staggered, and the locking assembly 300 abuts against the chuck 163. At this time, the chuck 163 prevents the locking assembly 300 from entering the locked position. As the driving mechanism 100 continues to drive the circuit breaker body to move to the preset position, the chuck 163 allows the locking assembly 300 to enter the locked position, thereby locking the driving mechanism 100, preventing the driving mechanism 100 from continuing to drive the circuit breaker body to move, and keeping the circuit breaker body in the preset position. The setting of the lock buckle 200 simplifies the structure of the frame circuit breaker locking device, makes the power transmission process simpler, reduces the failure rate, and improves the stability of the frame circuit breaker locking device.

[0068] Optionally, at least one guide hole 211 extending along the second direction is provided on the lock body 210, and at least one guide column 13 is provided on the bottom plate 11, and the guide column 13 is passed through the guide hole 211. The design of the guide hole 211 and the guide column 13 enhances the stability and reliability of the movement of the lock 200, ensures that the lock 200 does not deviate from the predetermined track during the movement, and improves the reliability of the frame circuit breaker locking device.

[0069] Optionally, in this embodiment, two guide holes 211 extending along the second direction are provided on the lock body 210, and two guide columns 13 are provided on the base plate 11. The guide columns 13 are inserted into the corresponding guide holes 211, thereby further improving the stability and accuracy of the movement of the lock 200.

[0070] Optionally, a card slot is provided on the chuck 163, and the locking assembly 300 includes a locking matching block 310, a card plate 320 and a second elastic member 330. The locking matching block 310 is slidably arranged in the frame 10 along the first direction, and a limiting column 311 is provided on the locking matching block 310. The card plate 320 is located between the locking matching block 310 and the fixed plate 110. One end of the second elastic member 330 abuts against the fixed plate 110, and the other end abuts against the card plate 320. The second elastic member 330 makes the card plate 320 fit on the locking matching block 310 to ensure that the card plate 320 and the locking matching block 310 move synchronously along the first direction. A polygonal hole 321 is provided on the card plate 320, and the screw 120 is passed through the polygonal hole 321. A polygonal locking portion 121 that cooperates with the polygonal hole 321 is provided on the screw 120. When the operator operates the lead screw 120 to rotate, the lead screw 120 drives the first slide plate 130 to move in the first direction, and the first slide plate 130 drives the circuit breaker body to move in the first direction through the first transmission assembly 150. At the same time, the first slide plate 130 drives the transmission shaft 161 to rotate, and the cam 162 drives the lock buckle 200 to move in the second direction. When the lock buckle 200 moves in the second direction until the end of the limiting column 311 abuts against the first stop arm 220 in the first direction, the tongue 313 is not inserted into the slot, and the chuck 163 restricts the card plate 320 and the locking matching block 310 to the unlocked position. The polygonal hole 321 on the card plate 320 cannot cooperate with the polygonal locking portion 121, and the lead screw 120 can rotate freely. When the lock buckle 200 moves in the second direction until the end of the limiting column 311 abuts against the first stop arm 22 The positions of the clamping plate 320 and the locking matching block 310 are staggered in the first direction. Under the elastic force of the second elastic member 330, the clamping plate 320 and the locking matching block 310 move in the direction away from the fixing plate 110. The latch tongue 313 abuts against the clamping plate 163, but is not inserted into the clamping slot. The clamping plate 163 continues to prevent the clamping plate 320 and the locking matching block 310 from entering the locking position. As the lead screw 120 continues to drive the transmission shaft 161 to rotate, the transmission shaft 161 drives the clamping plate 163 to rotate, so that the latch tongue 313 is opposite to the clamping slot. The latch tongue 313 is inserted into the clamping slot. Under the elastic force of the second elastic member 330, the clamping plate 320 and the locking matching block 310 enter the locking position. The polygonal hole 321 is sleeved on the polygonal locking portion 121, and the lead screw 120 is locked, thereby prompting the operator that the circuit breaker body has moved to the preset position. The design of the locking assembly 300 simplifies the structure of the position locking device, reduces the number and complexity of parts, and reduces the frequency of maintenance and replacement, thereby reducing the maintenance cost of the frame circuit breaker position locking device and extending the service life of the frame circuit breaker position locking device.

[0071] Optionally, the polygonal hole 321 may be a triangular hole, a quadrangular hole, a pentagonal hole, a hexagonal hole, etc., and the corresponding polygonal locking portion 121 may be a triangular locking portion, a quadrangular locking portion, a pentagonal locking portion, a hexagonal locking portion, etc., and the polygonal hole 321 is sleeved on the polygonal locking portion 121 and the lead screw 120 cannot rotate relatively during structural design. For example, in this embodiment, a hexagonal hole is provided on the clamping plate 320, and a hexagonal locking portion is correspondingly provided on the lead screw 120, and the hexagonal locking hole is sleeved on the hexagonal locking portion, and the lead screw 120 is locked.

[0072] Optionally, in the third direction, the limit column 311 and the second boss 230 are staggered to ensure that when the drive mechanism 100 is locked, the side of the limit column 311 facing away from the cam 162 is abutted against the side of the first stop arm 220 close to the cam 162, restricting the lock buckle 200 from resetting, and the second direction, the first direction, and the third direction are perpendicular to each other.

[0073] Optionally, the locking matching block 310 is provided with two limiting posts 311, and the two limiting posts 311 are arranged at intervals in the third direction. By providing the two limiting posts 311, the contact area between the first blocking arm 220 and the locking matching block 310 can be increased, ensuring that the first blocking arm 220 accurately limits the locking assembly 300, and preventing the first blocking arm 220 from being separated from the abutment relationship with the limiting posts 311 due to vibration, and the driving mechanism 100 is accidentally locked. In addition, when the clamping plate 320 and the locking matching block 310 are both in the locked position, the second boss 230 is located between the two limiting posts 311 to ensure that the frame circuit breaker position locking device has a more compact structure. The space utilization rate in the frame 10 is improved.

[0074] Optionally, the lock buckle 200 further includes a second stop arm 240, and a convex plate 312 is provided on the locking matching block 310 that can abut against the second stop arm 240. When the first stop arm 220 abuts against the limiting column 311, the second stop arm 240 abuts against the convex plate 312, thereby ensuring that the locking matching block 310 is force-balanced and improving the stability of the locking matching block 310. It should be noted that when the end of the limiting column 311 is misaligned with the position of the first stop arm 220, the end of the convex plate 312 is also misaligned with the position of the second stop arm 240, thereby ensuring that the locking matching block 310 and the clamping plate 320 can enter the locking position under the elastic force of the second elastic member 330.

[0075] Optionally, a connection between the first retaining arm 220 and the lock body 210 , and a connection between the second retaining arm 240 and the body are provided with reinforcing ribs 250 to improve the structural strength of the lock 200 , thereby increasing the service life of the lock 200 .

[0076] Optionally, a second assembly hole 314 is provided in the middle of the locking mating block 310, and the second assembly hole 314 is sleeved on the screw 120; a convex rod portion 315 is protruded toward the fixed plate 110 at one end of the locking mating block 310, and a second penetration hole 111 is provided on the fixed plate 110, and the convex rod portion 315 is penetrated in the second penetration hole 111, and the convex rod portion 315 is slidably connected to the fixed plate 110, thereby limiting the rotation of the locking mating block 310 and only allowing the locking mating block 310 to slide along the axial direction of the screw 120; a bayonet 322 is provided at one end of the clamping plate 320, and the convex rod portion 315 is slidably penetrated in the bayonet 322, thereby limiting the rotation of the clamping plate 320 along with the screw 120, thereby locking the screw 120.

[0077] Optionally, a button 316 is also provided on the locking mating block 310. The button 316 is arranged on the side of the locking mating block 310 away from the protruding rod portion 315. When the button 316 is pressed, the button 316 drives the locking mating block 310 to move with the clamping plate 320, so that the polygonal hole 321 of the clamping plate 320 is disengaged from the polygonal locking portion 121, thereby unlocking the screw 120.

[0078] Optionally, a avoidance hole 317 is provided on the locking mating block 310, and the transmission shaft 161 is passed through the avoidance hole 317. This design ensures that the frame circuit breaker position locking device has a more compact structure, while further limiting the rotation of the locking mating block 310, ensuring that the locking mating block 310 can only move along the first direction (the axial direction of the screw 120), further improving the reliability of the circuit breaker position locking device.

[0079] Optionally, an indicator portion 164 is provided on the transmission shaft 161, an indicator mark 1641 is provided on the indicator portion 164, and a position mark is provided on the frame 10. When the circuit breaker body moves to a preset position, the indicator mark 1641 points to the position mark, so that the operator can more intuitively understand whether the circuit breaker body moves to the preset position.

[0080] Optionally, the indicator mark 1641 can be an indicator arrow, an indicator line, a solid dot or a hollow dot, and the specific form of the indicator mark 1641 can be adaptively changed according to actual needs. In this embodiment, the indicator arrow is preferably used as the indicator mark 1641. By observing the indication direction of the indicator arrow, the movement position of the circuit breaker body can be more clearly and intuitively understood.

[0081] Embodiment 2

[0082] The frame circuit breaker position locking device provided in this embodiment is basically the same as that in the first embodiment, and differs from the first embodiment in that: the preset position includes a separation position, a test position and a connection position; the protrusion on the cam 162 includes a first protrusion 1621 and a second protrusion 1622, and the first protrusion 1621 and the second protrusion divide the outer peripheral surface of the cam 162 into a first abutment position 1623, a second abutment position 1624 and a third abutment position 1625; three card slots are provided on the chuck 163, and the three card slots are defined as a first card slot 1631, a second card slot 1632 and a third card slot 1633; the position mark on the frame 10 includes a separation mark, a test mark and a connection mark.

[0083] exist Figure 5-Figure 10 From the perspective of , the second direction is the left-right direction, the first direction is the front-back direction, and the third direction is the up-down direction. When the operator operates the driving mechanism 100 to drive the circuit breaker body to move from front to back in the frame 10, the circuit breaker body passes through the separation position, the test position, and the connection position in sequence. Next, the movement process of the frame circuit breaker position locking device is described with the circuit breaker body being in the separation position as the starting point.

[0084] First, if Figure 5 As shown, when the circuit breaker body is in the separation position, the polygonal hole 321 on the clamping plate 320 is fixed on the polygonal locking part 121 of the screw 120, the screw 120 is locked and cannot rotate, the right side surface of the first blocking arm 220 is in contact with the left side surface of the limiting column 311, the latch tongue 313 is clamped in the first latch groove 1631 of the chuck 163, locking the transmission shaft 161, and the indicator arrow on the indicator part 164 of the transmission shaft 161 points to the separation mark.

[0085] When the circuit breaker body is in the separated position, the unlocking drive mechanism 100 and the state of the frame circuit breaker position locking structure are as follows: Figure 6 The specific unlocking process is as follows: the button 316 is pressed, the button 316 drives the locking matching block 310 to drive the card plate 320 to move backward, the polygonal hole 321 is disengaged from the polygonal locking portion 121, the latch tongue 313 is disengaged from the first latch groove 1631, and the lead screw 120 can rotate freely. At this time, under the pulling force of the first elastic member 400, the lock buckle 200 moves to the right, the second boss 230 of the lock buckle 200 abuts against the first abutting position 1623 of the cam 162, the rear end face of the first blocking arm 220 abuts against the front end face of the limiting column 311, and the rear end face of the second blocking arm 240 abuts against the front end face of the convex plate 312, preventing the card plate 320 and the locking matching block 310 from moving forward, thereby unlocking the lead screw 120.

[0086] The operator rotates the lead screw 120 through the handle, and the lead screw 120 rotates to drive the first slide plate 130 to move from front to back. Through the power transmission of the first transmission assembly 150, the circuit breaker body on the second slide plate 140 also moves from front to back.

[0087] At the same time, the first slide plate 130 drives the cam 162 and the chuck 163 to rotate counterclockwise through the transmission shaft 161, and the first protrusion 1621 on the cam 162 gradually abuts against the second protrusion 230 of the lock buckle 200, and drives the lock buckle 200 to move left. When the lock buckle 200 moves to the left until the rear end face of the first stop arm 220 is offset from the front end face of the limiting column 311, the card plate 320 and the locking matching block 310 move forward a distance at the same time, and the tongue 313 abuts on the chuck 163, but the tongue 313 is not inserted in the second slot 1632. At this time, the chuck 163 prevents the card plate 320 and the locking matching block 310 from entering the locked position, and then When the chuck 163 rotates until the latch tongue 313 is opposite to the second slot 1632, the latch tongue 313 is inserted into the second slot 1632, the clamping plate 320 and the locking matching block 310 move forward into the locking position, and the polygonal hole 321 on the clamping plate 320 is sleeved on the polygonal locking portion 121 of the screw 120, locking the screw 120 so that the screw 120 cannot rotate, and the indicating arrow on the indicating portion 164 points to the test mark; and the button 316 pops out of the frame 10, the right side surface of the first blocking arm 220 is in contact with the left side surface of the limiting column 311, and the right side surface of the second blocking arm 240 is in contact with the left side surface of the convex plate 312. At this time, the circuit breaker body is in the test position, as shown in FIG. Figure 7 shown.

[0088] When the circuit breaker body is in the test position, the drive mechanism 100 is unlocked and the state of the frame circuit breaker locking device is as follows: Figure 8 The specific unlocking process is as follows: the button 316 is pressed, the button 316 drives the locking matching block 310 to drive the card plate 320 to move backward, the polygonal hole 321 is disengaged from the polygonal locking portion 121, the latch tongue 313 is disengaged from the second latch groove 1632, and the lead screw 120 can rotate freely. At this time, under the pulling force of the first elastic member 400, the lock buckle 200 moves to the right, the second boss 230 of the lock buckle 200 abuts against the second abutting position 1624 of the cam 162, the rear end face of the first blocking arm 220 abuts against the front end face of the limiting column 311, and the rear end face of the second blocking arm 240 abuts against the front end face of the convex plate 312, preventing the card plate 320 and the locking matching block 310 from moving forward, thereby unlocking the lead screw 120, and the lead screw 120 rotates freely.

[0089] After the lead screw 120 is unlocked, the operating handle continues to rotate the lead screw 120, and the first slide plate 130 drives the cam 162 and the chuck 163 to rotate counterclockwise through the transmission shaft 161, and the second protrusion 1622 on the cam 162 gradually abuts against the second boss 230 of the lock buckle 200, and drives the lock buckle 200 to move left. When the lock buckle 200 moves to the left until the end position of the first stop arm 220 and the limiting column 311 on the locking matching block 310 is staggered, the clamping plate 320 and the locking matching block 310 move forward a distance, and the clamping tongue 313 abuts on the chuck 163, but the clamping tongue 313 is not inserted in the third clamping groove 1633. At this time, the clamping plate 320 and the locking matching block 310 are prevented by the chuck 163 from being engaged. 10 enters the locked position, then when the chuck 163 rotates until the latch tongue 313 is opposite to the third slot 1633, the latch tongue 313 is inserted into the third slot 1633, the clamping plate 320 and the locking matching block 310 move forward to enter the locked position, the polygonal hole 321 on the clamping plate 320 is sleeved on the polygonal locking portion 121 of the lead screw 120, locking the lead screw 120 so that the lead screw 120 cannot rotate, and the indicating arrow on the indicating portion 164 points to the connection mark; and the button 316 pops out of the frame 10, the right side surface of the first blocking arm 220 is in contact with the left side surface of the limiting column 311, and the right side surface of the second blocking arm 240 is in contact with the left side surface of the convex plate 312. At this time, the circuit breaker body is in the connected position, see Fig. 9 .

[0090] When the circuit breaker body is in the connection position, the drive mechanism 100 is unlocked, and the frame circuit breaker position locking device is as follows: Fig.10 The specific unlocking process is as follows: the button 316 is pressed, the button 316 drives the locking matching block 310 to drive the card plate 320 to move backward, the polygonal hole 321 is disengaged from the polygonal locking portion 121, the latch tongue 313 is disengaged from the third latch groove 1633, and the lead screw 120 can rotate freely. At this time, under the pulling force of the first elastic member 400, the lock buckle 200 moves to the right, the second boss 230 of the lock buckle 200 abuts against the third abutting position 1625 of the cam 162, the rear end face of the first blocking arm 220 abuts against the front end face of the limiting column 311, and the rear end face of the second blocking arm 240 abuts against the front end face of the convex plate 312, preventing the card plate 320 and the locking matching block 310 from moving forward, thereby unlocking the lead screw 120, and the lead screw 120 rotates freely.

[0091] It should be noted that when the circuit breaker needs to be moved from the connection position to the test position and the separation position in sequence, the operator only needs to rotate the lead screw 120 in the reverse direction, and the specific movement process will not be described in detail.

[0092] Embodiment 3

[0093] The present embodiment provides a frame circuit breaker, comprising a frame 10, a circuit breaker body and a frame circuit breaker position locking device in any of the above embodiments. The circuit breaker body is movably arranged in the frame 10. The frame circuit breaker position locking device is used to lock the circuit breaker body in a preset position, effectively preventing the circuit breaker body from accidentally moving or misaligning, ensuring the accuracy of the position of the circuit breaker body, and improving the safety and reliability of the frame circuit breaker.

[0094] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. The frame circuit breaker position locking device is characterized by: include: A driving mechanism (100) is arranged in a frame (10), the driving mechanism (100) comprising a driving assembly, a first transmission assembly (150) and a second transmission assembly (160), the first transmission assembly (150) and the second transmission assembly (160) being both transmission-connected to the driving assembly, the circuit breaker body being arranged on an output end of the first transmission assembly (150), and the driving assembly driving the circuit breaker body to move along a first direction through the first transmission assembly (150); A lock buckle (200) is slidably disposed in the frame (10) along a second direction, and the driving assembly drives the lock buckle (200) to move along the second direction through the second transmission assembly (160), and the second direction is perpendicular to the first direction; A locking assembly (300), wherein the locking assembly (300), the second transmission assembly (160) and the lock catch (200) cooperate to lock the drive assembly when the circuit breaker body moves to a preset position.

2. The frame circuit breaker position locking device according to claim 1, characterized in that: The drive assembly comprises: A fixing plate (110) is arranged on the bottom plate (11) of the frame (10); A lead screw (120) is rotatably connected to the fixing plate (110); A first slide plate (130) is slidably disposed on the bottom plate (11) along the first direction, and the first slide plate (130) is threadedly connected to the lead screw (120); A second slide plate (140) is slidably disposed on the side plate (12) of the frame (10) along the first direction, and the circuit breaker body is disposed on the second slide plate (140); The input end of the first transmission assembly (150) is transmission-connected to the first slide plate (130), and the output end of the first transmission assembly (150) is transmission-connected to the second slide plate (140).

3. The frame circuit breaker position locking device according to claim 2, characterized in that: The second transmission assembly (160) comprises a transmission shaft (161), the transmission shaft (161) is transmission-connected to the first slide plate (130), a chuck (163) and a cam (162) are provided on the transmission shaft (161), when the first slide plate (130) moves along the first direction to drive the transmission shaft (161) to rotate, the cam (162) drives the lock buckle (200) to move along the second direction, so that the relative position of the lock buckle (200) and the locking assembly (300) changes, so that the chuck (163) allows or prevents the locking assembly (300) from locking or unlocking the lead screw (120).

4. The frame circuit breaker position locking device according to claim 3, characterized in that: The transmission shaft (161) is rotatably arranged on the fixed plate (110); a spiral guide rail (1611) is arranged on the transmission shaft (161); a first assembly hole (1322) is arranged on the first slide plate (130); a first boss (1323) is arranged on the side wall of the first assembly hole (1322); the transmission shaft (161) passes through the first assembly hole (1322); and the first boss (1323) is slidably connected to the spiral guide rail (1611).

5. The frame circuit breaker position locking device according to claim 3, characterized in that: The lock buckle (200) comprises: A lock body (210) is arranged on the bottom plate (11) along the second direction, a fixing pin (500) is provided on the bottom plate (11), and one end of a first elastic member (400) is connected to the lock body (210), and the other end is connected to the fixing pin (500); A first blocking arm (220) is disposed on the lock body (210); The second boss (230) is arranged on a side of the first blocking arm (220) close to the cam (162), and the cam (162) drives the first blocking arm (220) to move along the second direction through the second boss (230), so that the relative position of the first blocking arm (220) and the locking assembly (300) is changed, and the chuck (163) allows or prevents the locking assembly (300) from locking or unlocking the screw (120).

6. The frame circuit breaker position locking device according to claim 5, characterized in that: The lock body (210) is provided with at least one guide hole (211) extending along the second direction, and the bottom plate (11) is provided with at least one guide column (13), and the guide column (13) is inserted into the guide hole (211).

7. The frame circuit breaker position locking device according to claim 5, characterized in that: The chuck (163) is provided with a chuck slot, and the locking assembly (300) comprises: A locking matching block (310) is slidably disposed in the frame (10) along the first direction, and a limiting column (311) and a latching tongue (313) are provided on the locking matching block (310); a clamping plate (320), the clamping plate (320) being located between the locking matching block (310) and the fixing plate (110), the clamping plate (320) being provided with a polygonal hole (321), the lead screw (120) being passed through the polygonal hole (321), and the lead screw (120) being provided with a polygonal locking portion (121) matching with the polygonal hole (321); A second elastic member (330), one end of which abuts against the fixing plate (110) and the other end of which abuts against the clamping plate (320); The limiting column (311) abuts against the first blocking arm (220) in the first direction, the latch tongue (313) is not inserted into the slot, the polygonal hole (321) is separated from the polygonal locking portion (121), and the lead screw (120) is not locked; the limiting column (311) abuts against the first blocking arm (220) in the second direction, the latch tongue (313) is inserted into the slot, the polygonal hole (321) is sleeved with the polygonal locking portion (121), and the lead screw (120) is locked.

8. The frame circuit breaker position locking device according to claim 7, characterized in that: A second assembly hole (314) is provided in the middle of the locking matching block (310), buttons (316) and convex rods (315) are provided on both sides of the locking matching block (310), the second assembly hole (314) is sleeved on the lead screw (120), a second penetration hole (111) is provided on the fixing plate (110), and the convex rod (315) is slidably penetrated in the second penetration hole (111); A snap-in opening (322) is provided at one end of the clamping plate (320) close to the protruding rod portion (315), and the protruding rod portion (315) is slidably inserted into the snap-in opening (322).

9. The frame circuit breaker position locking device according to claim 3, characterized in that: The transmission shaft (161) is provided with an indicating portion (164), the indicating portion (164) is provided with an indicating mark (1641), the frame (10) is provided with a position mark, and when the circuit breaker body moves to the preset position, the indicating mark (1641) points to the position mark.

10. Frame circuit breaker, characterized in that, It comprises a frame (10), a circuit breaker body and a frame circuit breaker position locking device as claimed in any one of claims 1 to 9, wherein the circuit breaker body is movably arranged in the frame (10), and the frame circuit breaker position locking device is used to lock the circuit breaker body in a preset position.

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