Three-axis rotation interlocking mechanism for integrated bus coupler change-over switch
By designing a three-axis rotating interlocking mechanism and integrating three switches into an integrated bus tie changeover switch, the problems of large equipment size and high cost in the existing technology are solved, and a simple, stable and reliable interlocking effect is achieved.
Patent Information
- Application Number
- CN202423187734.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing three-switch, two-input, two-output, one-bus tie power distribution scheme has large equipment volume, complex structure, and high cost, and lacks an integrated bus tie transfer switch.
Design a three-axis rotary interlocking mechanism for an integrated bus tie changeover switch. By combining the rotary system and the interlocking system, the three switches can be integrated. The mechanical interlocking controls the closing action of the three sets of rotating shafts to prevent the three sets of switches from closing at the same time.
It achieves a reduction in product size and lowers solution costs, while maintaining a simple, stable, and reliable structure that enables interlocking effects under various working conditions.
Smart Images
Figure CN223679943U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a power distribution switch technical field, concretely relates to a three-axis rotation interlocking mechanism for integrated bus transfer switch. BACKGROUND
[0002] Modern power distribution systems generally adopt double or multi-way power supply or hybrid power supply and the like to ensure the continuity and reliability of power supply, and common double or hybrid power distribution systems adopt two-way incoming line cabinets and bus tie cabinet switches, and two power sources can independently undertake loads. When one of the power sources fails or needs to be repaired, the load supply of the power source is switched to the other power source through the bus tie switch. Alternatively, one power source supplies power to the load, and the other power source is standby, and when the load end load increases, the power source cannot meet the power supply demand, and part of the load can be switched to the other power source to ensure normal power supply at the load end. The "two-in two-out one bus tie" power distribution scheme generally adopts three switches, including two incoming line switches and one bus tie switch, and the three switches are linked through interlocking steel cables. When two of the switches are closed, the third switch cannot be closed due to the interlocking steel cable driving the interlocking piece of the third switch, so that the three switches do not appear to be closed at the same time in the mechanical structure, and the requirements of other seven working conditions can be met.
[0003] At present, the two-in two-out one bus tie scheme of three switches has defects such as large overall equipment volume, complex structure, and high cost, and there is no integrated bus transfer switch on the market at present. UTILITY MODEL CONTENTS
[0004] To solve the above problems, the purpose of the utility model is to provide a three-axis rotation interlocking mechanism for integrated bus transfer switch, which can greatly reduce the product volume and reduce the cost of the scheme.
[0005] The purpose of the utility model is achieved through the following technical solutions:
[0006] The utility model provides a kind of integrated bus transfer switch three-axis rotating interlocking mechanism, including bottom plate, rotating system and interlocking system;The rotating system is by sequentially longitudinally arranged above the first rotating shaft assembly, third rotating shaft assembly and second rotating shaft assembly and can rotate three rotating shaft assemblies are formed;Three rotating shaft assemblies are by longitudinally arranged above the rotating shaft and fixed on the rotating shaft and can swing swing arm of rotating shaft are formed;The interlocking system includes spring assembly, pressing plate assembly, limiting rod and sequentially transversely arranged between bottom plate and rotating system support plate assembly, limiting plate assembly and interlocking plate assembly;The support plate assembly is fixed on bottom plate;The limiting plate assembly is slidably mounted on support plate assembly and can slide back and forth transversely along support plate assembly, limiting plate assembly and third rotating shaft assembly are bolted in the preset waist-shaped hole of third rotating shaft assembly swing arm by third pin shaft;The interlocking plate assembly is slidably mounted on the limiting plate assembly and can slide back and forth transversely along limiting plate assembly;The spring assembly is respectively mounted on limiting plate assembly and interlocking plate assembly at both ends, for first rotating shaft assembly or second rotating shaft assembly to return to the position of opening, push interlocking plate assembly reset;The limiting rod is arranged above limiting plate assembly, and waist-shaped sliding groove is respectively arranged at both ends of limiting rod;The pressing plate assembly is two and is slidably connected with the waist-shaped sliding groove of limiting rod both ends, and two pressing plate assemblies are rotatably installed on both sides support plate assembly by mounting shaft and are respectively arranged below first rotating shaft assembly and second rotating shaft assembly;Pressing plate assembly can be rotated under the driving of corresponding rotating shaft assembly;Torsion spring is coaxially arranged on the mounting shaft of each pressing plate assembly, and two torsion arms of torsion spring are respectively mounted on support plate assembly and pressing plate assembly.
[0007] Further, limiting hole is arranged in the middle of the top of limiting plate assembly, and third limiting protrusion capable of being clamped into limiting hole is arranged in the middle of the bottom of limiting rod.
[0008] Further, when third rotating shaft assembly is located in the position of opening, any one of first rotating shaft assembly and rotating shaft assembly can realize position rotation without affecting the final interlocking effect;When third rotating shaft assembly is located in the position of closing, interlocking plate assembly moves synchronously under the driving of third rotating shaft assembly, and both ends of interlocking plate assembly move below two pressing plate assemblies respectively;When one of first rotating shaft assembly and second rotating shaft assembly closes the corresponding pressing plate assembly, the pressing plate assembly can push the other end of interlocking plate assembly to move below the other pressing plate assembly, limit the rotation of the other pressing plate assembly, so that the rotating shaft assembly corresponding to the pressing plate assembly cannot close;When first rotating shaft assembly and second rotating shaft assembly are both in the position of closing, third limiting protrusion is just clamped into limiting hole, limiting plate assembly cannot move, and third rotating shaft assembly is also limited to rotate, so it cannot close.
[0009] The utility model proposes a three -axis rotation interlock mechanism, applies it under the conventional double power supply structure platform, can integrate three switches of originally " two go in two go out a mother's connection " power distribution scheme into a integrated mother's connection transfer switch, can realize both opening and closing function consistency, realizes through control three groups of rotating shafts rotation, drives the movable contact to carry out the opening and closing action, does not appear three groups of switch movable contact can reach the closing position simultaneously, and other working conditions can realize the interlock effect, thereby greatly reduces the product size, reduces the scheme cost, simple structure, stable and reliable. BRIEF DESCRIPTION OF DRAWINGS
[0010] The structure of the utility model will be explained in further detail below in combination with the drawings.
[0011] Figure 1 It is the structure schematic drawing of the three -axis rotation interlock mechanism for integrated mother's connection transfer switch under two different visual angle.
[0012] Figure 2 It is the structure schematic drawing of the three -axis rotation interlock mechanism for integrated mother's connection transfer switch under two different visual angle.
[0013] Figure 3 It is the angle of rotation schematic drawing of the three -axis rotation interlock mechanism for integrated mother's connection transfer switch.
[0014] Figure 4 It is the structure schematic drawing of the support plate subassembly.
[0015] Figure 5 It is the structure schematic drawing of the first pressing plate subassembly.
[0016] Figure 6 It is the structure schematic drawing of the second pressing plate subassembly.
[0017] Figure 7 It is the structure schematic drawing of the limiting rod.
[0018] Figure 8 It is the structure schematic drawing of the interlock plate subassembly.
[0019] Figure 9 It is the structure schematic drawing of the limiting plate subassembly.
[0020] Figure 10 It is the schematic drawing of the first rotating shaft subassembly, second rotating shaft subassembly and third rotating shaft subassembly all in position one.
[0021] Figure 11 It is the schematic drawing of the first rotating shaft subassembly and second rotating shaft subassembly in position one, and the third rotating shaft subassembly in position two.
[0022] Figure 12 The schematic view of the first rotating shaft assembly, the second rotating shaft assembly and the third rotating shaft assembly in position one and the first rotating shaft assembly in position two.
[0023] Figure 13 The schematic view of the first rotating shaft assembly, the second rotating shaft assembly and the third rotating shaft assembly in position one and the first rotating shaft assembly in position two.
[0024] Figure 14 The schematic view of the first rotating shaft assembly, the second rotating shaft assembly and the third rotating shaft assembly in position one and the first rotating shaft assembly in position two.
[0025] Figure 15 The schematic view of the first rotating shaft assembly, the second rotating shaft assembly and the third rotating shaft assembly in position one and the first rotating shaft assembly in position two.
[0026] Figure 16 The schematic view of the first rotating shaft assembly, the second rotating shaft assembly and the third rotating shaft assembly in position one and the first rotating shaft assembly in position two.
[0027] In the drawing:
[0028] 1 - first rotating shaft assembly, 101 - first rotating shaft, 102 - first swing arm;
[0029] 2 - second rotating shaft assembly, 201 - second rotating shaft, 202 - second swing arm;
[0030] 3 - third rotating shaft assembly, 301 - third rotating shaft, 302 - third swing arm;
[0031] 4 - support plate assembly, 41 - first mounting shaft, 42 - support plate, 42a - first mounting hole, 42b - second mounting hole, 43 - second mounting shaft, 44 - first limiting shaft, 45 - second limiting shaft, 46 - accommodation gap;
[0032] 5 - limiting plate assembly, 51 - third limiting shaft, 52 - limiting plate, 52a - first waist-shaped sliding groove, 52b - second waist-shaped sliding groove, 52c - limiting hole, 52d - third mounting hole, 52e - first arc-shaped position, 52f - third arc-shaped position, 52g - fourth arc-shaped position, 52h - second arc-shaped position, 53 - fourth limiting shaft, 54 - fifth limiting shaft, 55 - first avoidance slot, 56 - second avoidance slot;
[0033] 6-interlocking plate assembly, 61-first fixing pin, 62-interlocking plate, 62a-first waist-shaped groove, 62b-second waist-shaped groove, 62c-third waist-shaped groove, 62d-first limiting protrusion, 62e-second arc-shaped pressing surface, 62f-first arc-shaped pressing surface, 62g-second limiting protrusion, 62h-upper accommodation groove, 62i-lower accommodation groove, 63-second fixing pin;
[0034] 7-first return spring, 8-first pin shaft, 9-first shaft sleeve;
[0035] 10-first pressing plate assembly, 10a-first supporting plate, 10a1-first sliding surface, 10b-first limiting pin, 10c-third mounting shaft, 10d-first pressing rod;
[0036] 11-second pressing plate assembly, 11a-second supporting plate, 11a1-second sliding surface, 11b-second limiting pin, 11c-fourth mounting shaft, 11d-second pressing rod;
[0037] 12-limiting rod, 12a-third limiting protrusion, 12b-fourth waist-shaped groove, 12b1-first end position, 12b2-second end position, 12c-fifth waist-shaped groove, 12c1-third end position, 12c2-fourth end position;
[0038] 13-third pin shaft, 14-bottom plate, 15-second pin shaft, 16-second shaft sleeve, 17-second return spring, 18-first torsion spring, 19-second torsion spring, 20-bracket. DETAILED DESCRIPTION
[0039] The specific embodiments will be described below to illustrate the implementation of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification. The described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0040] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances. It needs to explain, the term "include", "contain" or any other variant is intended to cover non-exclusive inclusion, so that the process, method, article or equipment containing a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in such process, method, article or equipment. Embodiments
[0041] As Figure 1 With Figure 2 As shown, the utility model provides a three -axis rotation interlock mechanism for integrated bus transfer switch, including bottom plate 14, rotation system and interlock system.
[0042] As Figures 1-3 As shown, the rotation system includes the first rotation shaft assembly 1, the third rotation shaft assembly 3 and the second rotation shaft assembly 2 that are sequentially longitudinally arranged above the bottom plate 14 and can rotate;The first rotation shaft assembly 1, the second rotation shaft assembly 2 and the third rotation shaft assembly 3 are all composed of a rotation shaft and a swing arm, the rotation shaft is longitudinally arranged above the bottom plate 14 (on the switch housing) and can rotate, and the swing arm is fixed on the rotation shaft and can swing with the rotation shaft;Wherein,
[0043] The first rotation shaft assembly 1 is composed of a first rotation shaft 101 longitudinally arranged above the bottom plate 14 and can rotate, and a first swing arm 102 fixed on the first rotation shaft 101 and can swing with the first rotation shaft 101;When the first rotation shaft assembly 1 rotates alone, the first swing arm 102 can rotate θ along the first rotation shaft 101 axis (i.e. reciprocating rotation between position one and position two, position one is the initial position of the first rotation shaft assembly 1, that is, the position of opening, at this time, the first swing arm 102 is vertically arranged;Position two is the final position of the first rotation shaft assembly 1, that is, the position of closing, at this time, the first swing arm 102 swings θ angle towards the third rotation shaft assembly 3). A first pin shaft 8 (parallel to the first rotation shaft 101) is vertically fixed at the lower end of the first swing arm 102, and a first shaft sleeve 9 is sleeved on the first pin shaft 8.
[0044] The second rotating shaft assembly 2 is composed of a second rotating shaft 201 longitudinally arranged above the bottom plate 14 and capable of rotating, and a second swing arm 202 fixed on the second rotating shaft 201 and capable of swinging with the second rotating shaft 201; when the second rotating shaft assembly 2 rotates alone, the second swing arm 202 can rotate β along the axis of the first rotating shaft 101 (i.e. reciprocating rotation between position one and position two, position one is the initial position of the second rotating shaft assembly 2, i.e. the open position, at this time the second swing arm 202 is vertically arranged; position two is the final position of the second rotating shaft assembly 2, i.e. the closed position, at this time the second swing arm 202 swings β angle towards the third rotating shaft assembly 3). A second pin shaft 15 (parallel to the second rotating shaft 201) is vertically fixed at the lower end of the second swing arm 202, and a second shaft sleeve 16 is sleeved on the second pin shaft 15.
[0045] The third rotating shaft assembly 3 is composed of a third rotating shaft 301 longitudinally arranged above the bottom plate 14 and capable of rotating, and a third swing arm 302 fixed on the third rotating shaft 301 and capable of swinging with the third rotating shaft 301, the lower end of the third swing arm 302 is provided with a waist-shaped hole arranged along the length direction of the third swing arm 302, and a third pin shaft 13 is slidingly installed in the waist-shaped hole, the third pin shaft 13 is perpendicular to the third swing arm 302 (parallel to the third rotating shaft 301); when the third rotating shaft assembly 3 rotates alone, the third swing arm 302 can rotate α along the axis of the third rotating shaft 301 (i.e. reciprocating rotation between position one and position two, position one is the initial position of the third rotating shaft assembly 3, i.e. the open position, at this time the third swing arm 302 is arranged to deviate from the direction of the first rotating shaft assembly 1; position two is the final position of the rotating shaft assembly 3, i.e. the closed position, at this time the third swing arm 302 swings α angle towards the direction of the second rotating shaft assembly 2).
[0046] As shown in Figures 4-9 , the interlocking system includes a spring assembly, a pressing plate assembly, a limiting rod 12, and a support plate assembly 4, a limiting plate assembly 5 and an interlocking plate assembly 6 arranged in sequence transversely between the bottom plate 14 and the rotating system.
[0047] As shown in Figure 4As shown, the support plate assembly 4 is fixed on the bottom plate 14; the support plate assembly 4 comprises a support plate 42, a gap 46 is arranged on the top of the support plate 42 and below the third rotating shaft assembly 3 for the swing arm (the third swing arm 302) of the third rotating shaft assembly 3 to rotate, the first mounting hole 42a and the second mounting hole 42b are arranged on the upper part of the support plate 42 on both sides of the gap 46, the first mounting shaft 41 and the second mounting shaft 43 are arranged on the lower part of the support plate 42 on both sides of the gap 46, and the first limiting shaft 44 and the second limiting shaft 45 are arranged on the middle part of the support plate 42 on both sides of the gap 46; wherein the first mounting hole 42a, the second mounting shaft 43 and the first limiting shaft 44 are located on one side of the gap 46 (below the side where the first rotating shaft assembly 1 is located), and the second mounting hole 42b, the first mounting shaft 41 and the second limiting shaft 45 are located on the other side of the gap 46 (below the side where the second rotating shaft assembly 2 is located).
[0048] As Figure 9As shown, the limiting plate assembly 5 is slidingly mounted on the support plate 42 of the support plate assembly 4 and can slide back and forth transversely along the support plate 42 of the support plate assembly 4, the limiting plate assembly 5 includes a limiting plate 52, a first waist-shaped sliding groove 52a and a second waist-shaped sliding groove 52b are respectively transversely provided on the limiting plate 52 corresponding to the first mounting shaft 41 and the second mounting shaft 43, wherein the second mounting shaft 43 is slidingly sleeved in the first waist-shaped sliding groove 52a and limited by end clamps, and the first mounting shaft 41 is slidingly sleeved in the second waist-shaped sliding groove 52b and limited by end clamps; a third limiting shaft 51, a fourth limiting shaft 53 and a fifth limiting shaft 54 are provided on the side of the limiting plate 52 away from the support plate assembly 4; the top middle of the limiting plate 52 of the limiting plate assembly 5 is curved (a notch facing recess is formed) towards the direction away from the support plate assembly 4, and a limiting hole 52c is provided on the top of the curved portion, and a first empty slot 55 and a second empty slot 56 are respectively provided on the top of the limiting plate assembly 5 (the limiting plate 52) on both sides of the limiting hole 52c (concave), the first empty slot 55 is located below the first rotating shaft assembly 1, the two side surfaces of the first empty slot 55 are arc-shaped concave surfaces, which are a first arc-shaped position 52e and a second arc-shaped position 52h respectively, the second empty slot 56 is located below the second rotating shaft assembly 2, the two side surfaces of the second empty slot 56 are also arc-shaped concave surfaces, which are a third arc-shaped position 52f and a fourth arc-shaped position 52g respectively, wherein the first arc-shaped position 52e and the third arc-shaped position 52f are arranged close to the middle of the limiting plate 52. The top and the bottom of the side of the limiting plate 52 away from the support plate assembly 4 are transversely provided with protrusions, and the two protrusions form a guide channel for the interlocking plate assembly 6 to slide back and forth. A third mounting hole 52d is provided in the middle of the limiting plate 52 corresponding to the swing arm (the third swing arm 302) of the third rotating shaft assembly 3, and the third mounting hole 52d and the waist-shaped hole on the swing arm (the third swing arm 302) of the third rotating shaft assembly 3 are connected by a third pin shaft 13, when the third swing arm 302 of the third rotating shaft assembly 3 reciprocates between position one and position two, the limiting plate assembly 5 can follow it to move horizontally (transversely) reciprocally, and the interlocking plate assembly 6 also moves horizontally (transversely) reciprocally with the limiting plate assembly 5.
[0049] As Figure 8As shown, the interlocking plate assembly 6 is slidingly mounted on the limiting plate 52 and can slide back and forth along the limiting plate 52 of the limiting plate assembly 5, the interlocking plate assembly 6 includes an interlocking plate 62, a first arc-shaped pressing surface 62f and a second arc-shaped pressing surface 62e are respectively arranged on both sides of the top of the interlocking plate 62, an upper accommodation groove 62h is arranged between the first arc-shaped pressing surface 62f and the second arc-shaped pressing surface 62e at a position close to the first arc-shaped pressing surface 62f on the top of the interlocking plate 62, and a lower accommodation groove 62i is concavely formed in the middle of the bottom of the interlocking plate 62; a first waist-shaped groove 62a, a second waist-shaped groove 62b and a third waist-shaped groove 62c are respectively arranged on the interlocking plate 62 corresponding to the third limiting shaft 51, the fourth limiting shaft 53 and the fifth limiting shaft 54 of the limiting plate 52, wherein the third limiting shaft 51 is slidingly sleeved in the third waist-shaped groove 62c and is limited by an end clamp, the fourth limiting shaft 53 is slidingly sleeved in the first waist-shaped groove 62a and is limited by an end clamp, and the fifth limiting shaft 54 is slidingly sleeved in the second waist-shaped groove 62b and is limited by an end clamp. A first limiting protrusion 62d and a second limiting protrusion 62g are arranged on the top of the interlocking plate 62, the first limiting protrusion 62d is located between the upper accommodation groove 62h and the second arc-shaped pressing surface 62e and is arranged on the top edge of the second arc-shaped pressing surface 62e, and the second limiting protrusion 62g is located between the upper accommodation groove 62h and the first limiting protrusion 62d and is arranged on the top of the side of the upper accommodation groove 62h close to the first limiting protrusion 62d. A first fixing pin 61 and a second fixing pin 63 are arranged on the side of the interlocking plate 62 away from the limiting plate 52, and the first fixing pin 61 and the second fixing pin 63 are respectively arranged on both sides of the lower accommodation groove 62i. The position between the first arc-shaped pressing surface 62f and the upper accommodation groove 62h is opposite to the first avoidance groove 55 of the limiting plate 52.
[0050] As shown in the drawings, Figure 1 With Figure 2 As shown, the spring assembly includes a first reset spring 7, a second reset spring 17 and a bracket 20, which is used to push the interlocking plate assembly 6 to reset after the first rotating shaft assembly 1 or the second rotating shaft assembly 2 returns to the open position; the bracket 20 is fixed on the limiting plate 52 and located in the lower accommodation groove 62i of the interlocking plate 62, and the lower accommodation groove 62i can slide back and forth relative to the bracket 20. The first reset spring 7 and the second reset spring 17 are respectively arranged on both sides of the bracket 20, one end of the first reset spring 7 is sleeved on the first fixing pin 61, and the other end is hung in the pre-set hole at one end of the bracket 20, one end of the second reset spring 17 is sleeved on the second fixing pin 63, and the other end is hung in the pre-set hole at the other end of the bracket 20, so that the interlocking plate assembly 6 can move within the size range of the waist-shaped grooves (the first waist-shaped groove 62a, the second waist-shaped groove 62b and the third waist-shaped groove 62c), and remain in the open position when there is no external force.
[0051] As shown in the drawings, Figure 7As shown, the limiting rod 12 is provided above the limiting plate assembly 5, and has a long strip shape, and a third limiting protrusion 12a is provided at the middle of the bottom of the limiting rod 12 and can be clamped into the limiting hole 52c, and a fourth waist-shaped slot 12b and a fifth waist-shaped slot 12C are respectively provided at the two ends of the limiting rod 12, and the two ends of the fourth waist-shaped slot 12b are respectively a first end position 12b1 and a second end position 12b2, and the two ends of the fifth waist-shaped slot 12C are respectively a third end position 12c1 and a fourth end position 12c2, wherein the second end position 12b2 and the third end position 12c1 are provided close to the middle of the limiting rod 12, and the first end position 12b1 and the fourth end position 12c2 are provided close to the end of the limiting rod 12. When the first rotating shaft assembly 1 and the second rotating shaft assembly 2 are both located at the final position (the closing position of position two), the third limiting protrusion 12a is clamped into the limiting hole 52c, and the limiting plate assembly 5 cannot be moved, and at the same time, the third rotating shaft assembly 3 is also limited and difficult to rotate.
[0052] As shown in the Figures 1-3 The pressing plate assembly is two, including a first pressing plate assembly 10 and a second pressing plate assembly 11, and the first pressing plate assembly 10 and the second pressing plate assembly 11 are respectively connected with the waist-shaped sliding groove at the two ends of the limiting rod 12, and the two pressing plate assemblies are rotatably installed on the two side support plate assemblies 4 through mounting shafts and are respectively arranged one by one below the first rotating shaft assembly 1 and the second rotating shaft assembly 2; the pressing plate assembly can be rotated under the driving of the corresponding rotating shaft assembly; a torsion spring is coaxially sleeved on the mounting shaft of each pressing plate assembly, and the two torsion arms of the torsion spring are respectively installed on the support plate assembly 4 and the pressing plate assembly 10.
[0053] As shown in the Figure 5As shown, the first pressing plate assembly 10 is located between the second shaft assembly 2 and the third shaft assembly 3 and above the second clearance groove 56, and is rotatably installed at one end of the support plate assembly 4. The first pressing plate assembly 10 comprises a first support plate 10a located between the support plate 42 and the limiting rod 12 and above the second clearance groove 56. A first limiting pin 10b and a third mounting shaft 10c are vertically fixed on the side of the first support plate 10a facing the support plate 42. The first limiting pin 10b penetrates through the first support plate 10a and extends out of the side of the first support plate 10a facing the limiting rod 12, and the end of the first limiting pin 10b facing the limiting rod 12 is slidably arranged in the fifth waist-shaped groove 12C of the limiting rod 12. The third mounting shaft 10c is rotatably installed in the second mounting hole 42b of the support plate assembly 4 (support plate 42) and is limited by an end clamp. One end of the first support plate 10a extends to above the second shaft sleeve 16 in the direction of the second shaft assembly 2 and forms a first sliding surface 10a1 tangent to the second shaft sleeve 16 at the bottom thereof. The other end of the first support plate 10a extends in the direction of the second clearance groove and is vertically fixed with a first pressing rod 10d on the side of the end facing the support plate 42, and the first pressing rod 10d can be turned into the second clearance groove under the driving of the second shaft assembly 2. The first torsional spring 18 is coaxially sleeved on the third mounting shaft 10c, one torsional arm of the first torsional spring 18 is arranged below the end of the first limiting pin 10b facing the support plate 42, and the other torsional arm of the first torsional spring 18 is arranged below the lower end of the second limiting shaft 45 on the support plate assembly 4, so that the first pressing plate assembly 10 can ensure that the first sliding surface 10a1 is always tangent to the second shaft sleeve 16 mounted on the second pin shaft 15.
[0054] As Figure 6As shown, the second pressing plate assembly 11 is located between the first rotating shaft assembly 1 and the third rotating shaft assembly 3 and above the first avoiding slot, and is rotationally installed on the other end of the support plate assembly 4. The second pressing plate assembly 11 comprises a second support plate 11a located between the support plate 42 and the limiting rod 12 and above the first avoiding slot; a second limiting pin 11b and a fourth mounting shaft 11c are vertically fixed on the side of the second support plate 11a facing the support plate 42; the second limiting pin 11b penetrates through the second support plate 11a and extends out of the side of the second support plate 11a facing the limiting rod 12, and the end of the second limiting pin 11b facing the limiting rod 12 is slidingly arranged in the fourth waist-shaped slot 12b of the limiting rod 12; the fourth mounting shaft 11c is rotationally installed in the first mounting hole 42a of the support plate assembly 4 (the support plate 42) and is limited by end clamps; one end of the second support plate 11a extends above the first shaft sleeve 9 in the direction of the first rotating shaft assembly 1 and forms a second sliding surface 11a1 tangent to the first shaft sleeve 9 at the bottom thereof; the other end of the second support plate 11a extends in the direction of the first avoiding slot and a second pressing rod 11d is vertically fixed on the side of the end facing the support plate 42, and the second pressing rod 11d can be turned into the first avoiding slot under the driving of the first rotating shaft assembly 1. A second torsional spring 19 is coaxially sleeved on the fourth mounting shaft 11c, one torsional arm of the second torsional spring 19 is arranged below the end of the second limiting pin 11b facing the support plate 42, and the other torsional arm of the second torsional spring 19 is arranged below the lower end of the first limiting shaft 44 on the support plate assembly 4, so that the second pressing plate assembly 11 can ensure that the second sliding surface 11a1 is always tangent to the first shaft sleeve 9 mounted on the first pin shaft 8.
[0055] When the third rotating shaft assembly 3 is located at the open position, any one of the first rotating shaft assembly 1 and the second rotating shaft assembly 2 can realize position rotation without affecting the final interlocking effect.
[0056] When the third rotating shaft assembly 3 is located at the closed position, the interlocking plate assembly 6 moves synchronously under the driving of the third rotating shaft assembly 3 and the two ends thereof move below the two pressing plate assemblies respectively; when one of the first rotating shaft assembly 1 and the second rotating shaft assembly 2 is closed to drive the corresponding pressing plate assembly to rotate, the pressing plate assembly can push the other end of the interlocking plate assembly 6 to move below the other pressing plate assembly, thereby limiting the rotation of the other pressing plate assembly, so that the corresponding rotating shaft assembly of the pressing plate assembly cannot be closed.
[0057] When the first rotating shaft assembly 1 and the second rotating shaft assembly 2 are both at the closed position, the third limiting protrusion 12a is just clamped into the limiting hole 52c, the limiting plate assembly 5 cannot move, and at the same time, the third rotating shaft assembly 3 is also limited and difficult to rotate, and cannot be closed, that is, after the first rotating shaft assembly 1 and the second rotating shaft assembly 2 are from position one to position two, the third rotating shaft assembly 3 is structurally limited and cannot be from position one to position two, thereby realizing the interlocking function.
[0058] Working principle:
[0059] The principle of applying the three-axis rotation interlocking mechanism described in this embodiment to the bus tie integrated transfer switch to realize seven working conditions is as follows.
[0060] As shown in Figure 10 , the first rotating shaft assembly 1, the second rotating shaft assembly 2, and the third rotating shaft assembly 3 are all in position one (the first limiting pin 10b is located at the third end position 12c1, and the second limiting pin is located at 11b the first end position 12b1), that is, the I power rotating shaft, the II power rotating shaft, and the bus tie rotating shaft of the bus tie integrated transfer switch are in the open position (that is, the "three split" state of I split, II split, and bus tie split).
[0061] As shown in Figure 11 , when the third rotating shaft assembly 3 rotates by β angle, during the process from position one to position two, the third rotating shaft assembly 3 drives the limiting plate assembly 5 to move through the third pin shaft 13, and the third rotating shaft assembly 3 reaches position two (the first limiting pin 10b is located at the third end position 12c1, and the second limiting pin is located at 11b the first end position 12b1), that is, the bus tie rotating shaft of the bus tie integrated transfer switch is closed, and the I power rotating shaft and the II power rotating shaft are in the open position (that is, I split, II split, and bus tie joint).
[0062] As shown in Figure 12 , when the first rotating shaft assembly 1 rotates by θ angle, during the process from position one to position two, the first rotating shaft assembly 1 drives the second pressure plate assembly 11 to rotate by pushing the first shaft sleeve 9, and the second pressure rod 11d on the second pressure plate assembly 11 enters the first arc-shaped position 52e of the first empty slot of the limiting plate assembly 5, and the first rotating shaft assembly 1 reaches position two (the first limiting pin 10b is located at the fourth end position 12c2, and the second limiting pin is located at 11b the first end position 12b1), that is, the I power of the bus tie integrated transfer switch is closed, and the bus tie rotating shaft and the II power rotating shaft are in the open position (that is, I close, II split, and bus tie split).
[0063] As shown in Figure 13 , when the second rotating shaft assembly 2 rotates by α angle, during the process from position one to position two, the second rotating shaft assembly 2 drives the first pressure plate assembly 10 to rotate by pushing the second shaft sleeve 16, and the first pressure rod 10d on the first pressure plate assembly 10 enters the fourth arc-shaped position 52g of the second empty slot of the limiting plate assembly 5, and the second shaft assembly 2 reaches position two (the first limiting pin 10b is located at the fourth end position 12c2, and the second limiting pin is located at 11b the first end position 12b1), that is, the II power of the bus tie integrated transfer switch is closed, and the bus tie rotating shaft and the I power rotating shaft are in the open position (that is, I split, II close, and bus tie split).
[0064] As shown in Figure 14As shown, when the first rotating shaft assembly 1 rotates by an angle θ and the second rotating shaft assembly 2 rotates by an angle α, during the process from position one to position two, the second rotating shaft assembly 2 pushes the first pressing plate assembly 10 to rotate by following the second shaft sleeve 16, the first pressing rod 10d on the first pressing plate assembly 10 enters the fourth arc-shaped position 52g in the second empty slot of the limiting plate assembly 5, the second rotating shaft assembly 2 reaches position two, the first pressing plate assembly 10 pushes the second pressing plate assembly 11 to rotate by following the first shaft sleeve 9, the second pressing rod 11d on the second pressing plate assembly 11 enters the first arc-shaped position 52e in the first empty slot of the limiting plate assembly 5, the first rotating shaft assembly 1 reaches position two (the first limiting pin 10b is located at the fourth end position 12c2, and the second limiting pin is located at the second end position 12b2), at this time, the third limiting protrusion 12a on the limiting rod 12 connected with the first pressing plate assembly 10 and the second pressing plate assembly 11 is just embedded into the limiting hole 52c of the limiting plate assembly 5, causing the third rotating shaft assembly 3 connected with the limiting plate assembly 5 to be unable to rotate, realizing the interlocking function that after the first rotating shaft assembly 1 and the second rotating shaft assembly 2 from position one to position two, the third rotating shaft assembly 3 is structurally limited and cannot be from position one to position two, that is, when the I and II power sources of the bus tie integrated switch are closed, the bus tie rotating shaft cannot rotate and is in the open position (that is, I and II are closed, and the bus tie is open), forming an interlocking state that cannot be in a three-closed state (that is, the I power source, the II power source, and the bus tie switch are all in the closed state).
[0065] As Figure 15As shown, when the first rotating shaft assembly 1 rotates by an angle θ and the third rotating shaft assembly 3 rotates by an angle β, during the movement of the two rotating shaft assemblies from position one to position two, the third rotating shaft assembly 3 drives the limiting plate assembly 5 to move (horizontally towards the second rotating shaft assembly 2) through the third pin shaft 13, and after the third rotating shaft assembly 3 reaches position two (the first limiting pin 10b is located at the fourth end position 12c2, and the second limiting pin is located at 11b first end position 12b1), the second arc-shaped position 52h of the limiting plate assembly 5 and the first arc-shaped pressing surface 62f of the interlocking plate assembly 6 are just located on both sides of the second pressing rod 11d of the second pressing plate assembly 11, at the same time, the third arc-shaped position 52f of the limiting plate assembly 5 and the second arc-shaped pressing surface 62e of the interlocking plate assembly 6 move to below the first pressing rod 10d of the first pressing plate assembly 10, the first shaft sleeve 9 pushes the second pressing plate assembly 11 to rotate, the second pressing rod 11d on the second pressing plate assembly 11 enters the second arc-shaped position 52h of the first empty slot of the limiting plate assembly 5 (between the second arc-shaped position 52h and the first arc-shaped pressing surface 62f) by rotating, the second pressing rod 11d simultaneously contacts with the first arc-shaped pressing surface 62f of the interlocking plate assembly 6, pushes the interlocking plate assembly 6 to move to the other side (horizontally towards the second rotating shaft assembly 2), makes the first limiting protrusion 62d of the interlocking plate assembly 6 move to the position of the third arc-shaped position 52f in the second empty slot (protruding from the third arc-shaped position 52f on the limiting plate assembly 5), blocks the first pressing rod 10d of the first pressing plate assembly 10 (turning into the channel in the second empty slot downward), after the first rotating shaft assembly 1 reaches position two, because the first limiting protrusion 62d moves to the position of the third arc-shaped position 52f to block the first pressing rod 10d turning into the channel in the second empty slot, the first pressing rod 10d on the first pressing plate assembly 10 connected with the second rotating shaft assembly 2 cannot enter the position of the third arc-shaped position 52f in the second empty slot due to the interference with the first limiting protrusion 62d, the second rotating shaft assembly 2 cannot reach position two, realizing the interlocking function that after the first rotating shaft assembly 1 and the third rotating shaft assembly 3 move from position one to position two, the second rotating shaft assembly 2 cannot move from position one to position two due to the structural limitation, that is, the I power supply, the bus tie switch is closed, the II power supply switch rotating shaft cannot rotate and is in the open position (that is, the I power supply and the bus tie are connected, and the II power supply is separated), forming the interlocking state that cannot perform "three closing" (that is, the I power supply, the II power supply and the bus tie switch are all in the closed state).
[0066] As Figure 16As shown, when the second rotating shaft assembly 2 rotates by an angle α and the third rotating shaft assembly 3 rotates by an angle β, during the movement of the two rotating shaft assemblies from position one to position two, the third rotating shaft assembly 3 drives the limiting plate assembly 5 to move (horizontally towards the second rotating shaft assembly 2) through the third pin shaft 13, and when the third rotating shaft assembly 3 reaches position two (the first limiting pin 10b is located at the fourth end position 12c2, and the second limiting pin is located at the first end position 12b1), the second arc-shaped position 52h of the limiting plate assembly 5 and the first arc-shaped pressing surface 62f of the interlocking plate assembly 6 are located on both sides of the second pressing rod 11d of the second pressing plate assembly 11, and at the same time, the third arc-shaped position 52f of the limiting plate assembly 5 and the second arc-shaped pressing surface 62e of the interlocking plate assembly 6 move to below the first pressing rod 10d of the first pressing plate assembly 10; the second rotating shaft assembly 2 drives the first pressing plate assembly 10 to rotate through the second shaft sleeve 16, and the first pressing rod 10d of the first pressing plate assembly 10 enters the third arc-shaped position 52f of the second empty slot of the limiting plate assembly 5 through rotation, and at the same time, the first pressing rod 10d is in contact with the second arc-shaped pressing surface 62e of the interlocking plate assembly 6, thereby driving the interlocking plate assembly 6 to move to the other side (horizontally towards the first rotating shaft assembly 1), so that the second limiting protrusion 62g of the interlocking plate assembly 6 moves to the first empty slot and is located close to the second arc-shaped position 52h (protruding from the second arc-shaped position 52h of the limiting plate assembly 5), thereby blocking the second pressing rod 11d of the second pressing plate assembly 11 (turning into the channel in the first empty slot downward), and after the second rotating shaft assembly 2 reaches position two, since the second limiting protrusion 62g moves to the second arc-shaped position 52h to block the second pressing rod 11d from turning into the channel in the first empty slot, the second pressing rod 11d of the second pressing plate assembly 11 connected with the first rotating shaft assembly 1 cannot enter the second arc-shaped position 52h due to the interference with the second limiting protrusion 62g, so that the first rotating shaft assembly 1 cannot reach position two, thereby realizing the interlocking function that the first rotating shaft assembly 1 cannot move from position one to position two after the second rotating shaft assembly 2 and the third rotating shaft assembly 3 move from position one to position two, that is, when the II power supply and the bus tie switch are closed, the rotating shaft of the I power supply switch cannot rotate and is in the open position (that is, the II power supply and the bus tie switch are closed, and the I power supply is open), thereby forming an interlocking state in which the "three-closing" (that is, the I power supply, the II power supply, and the bus tie switch are all in the closed state) cannot be realized.
[0067] Other details of the utility model are conventional techniques known to those skilled in the art.
[0068] It should be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or device containing a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent elements of such a process, method, article, or device.
[0069] The protection scope of the utility model is not limited to the technical scheme disclosed by the specific embodiment, and any modification, equivalent replacement, improvement and the like made to the above embodiment according to the technical essence of the utility model all fall into the protection scope of the utility model.
Claims
1. A three-axis rotating interlocking mechanism for integrated bus transfer switch, comprising a base plate (14), a rotating system, and an interlocking system; characterized in that: the rotating system comprises a first rotating shaft assembly (1), a third rotating shaft assembly (3), and a second rotating shaft assembly (2) arranged in sequence and vertically above the base plate (14) and capable of rotating; the interlocking system comprises a spring assembly, a pressing plate assembly, a limiting rod (12), and a support plate assembly (4), a limiting plate assembly (5), and an interlocking plate assembly (6) arranged in sequence and horizontally between the base plate (14) and the rotating system; the support plate assembly (4) is fixed on the base plate (14); the limiting plate assembly (5) is slidingly installed on the support plate assembly (4), and the limiting plate assembly (5) and the third rotating shaft assembly (3) are bolted through a third pin shaft (13) in a preset waist-shaped hole on the swing arm of the third rotating shaft assembly (3); the interlocking plate assembly (6) is slidingly installed on the limiting plate assembly (5); the spring assembly is installed at both ends of the limiting plate assembly (5) and the interlocking plate assembly (6), respectively, for pushing the interlocking plate assembly (6) back to the original position after the first rotating shaft assembly (1) or the second rotating shaft assembly (2) returns to the open position; the limiting rod (12) is arranged above the limiting plate assembly (5) and has a waist-shaped sliding groove at both ends; the pressing plate assembly is slidingly connected with the waist-shaped sliding groove at both ends of the limiting rod (12), and two pressing plate assemblies are rotatingly installed on the support plate assembly (4) on both sides through an installation shaft and are arranged below the first rotating shaft assembly (1) and the second rotating shaft assembly (2) respectively; the pressing plate assembly can rotate under the driving of the corresponding rotating shaft assembly; a torsional spring is coaxially sleeved on the installation shaft of each pressing plate assembly, and the two torsional arms of the torsional spring are installed on the support plate assembly (4) and the pressing plate assembly, respectively.
2. The three-shaft rotation interlocking mechanism for the integrated transfer switch according to claim 1, characterized in that: A limiting hole (52c) is provided in the middle of the top of the limiting plate assembly (5), and a third limiting protrusion (12a) capable of being clamped into the limiting hole (52c) is provided in the middle of the bottom of the limiting rod (12).
3. The three-axis rotating interlocking mechanism for integrated bus transfer switch according to claim 2, characterized in that: when the third rotating shaft assembly (3) is in the open position, any one of the first rotating shaft assembly (1) and the rotating shaft assembly (2) can realize position rotation without affecting the final interlocking effect; when the third rotating shaft assembly (3) is in the closed position, the interlocking plate assembly (6) moves synchronously under the driving of the third rotating shaft assembly (3) and the two ends of the interlocking plate assembly (6) move below the corresponding pressing plate assembly; when one of the first rotating shaft assembly (1) and the second rotating shaft assembly (2) is closed to drive the corresponding pressing plate assembly to rotate, the pressing plate assembly can push the other end of the interlocking plate assembly (6) to move below the other pressing plate assembly, thereby limiting the rotation of the other pressing plate assembly, so that the corresponding rotating shaft assembly of the pressing plate assembly cannot be closed; when the first rotating shaft assembly (1) and the second rotating shaft assembly (2) are both in the closed position, the third limiting protrusion (12a) is clamped into the limiting hole (52c), the limiting plate assembly (5) cannot move, and at the same time, the third rotating shaft assembly (3) is also limited and difficult to rotate, so it cannot be closed.
4. The three-shaft rotation interlocking mechanism for the integrated transfer switch according to claim 1, characterized in that: The support plate assembly (4) comprises a support plate (42), a gap (46) is arranged on the top of the support plate (42) below the third rotating shaft assembly (3) and for the swing arm of the third rotating shaft assembly (3) to rotate, the upper part of the support plate (42) on both sides of the gap (46) is provided with a first mounting hole (42a) and a second mounting hole (42b), the lower part of the support plate (42) on both sides of the gap (46) is provided with a first mounting shaft (41) and a second mounting shaft (43), and the middle part of the support plate (42) on both sides of the gap (46) is provided with a first limiting shaft (44) and a second limiting shaft (45).
5. The three-shaft rotation interlocking mechanism for the integrated transfer switch according to claim 4, characterized in that: The limiting plate assembly (5) is slidably mounted on the support plate (42) and can slide back and forth along the support plate (42), the limiting plate assembly (5) comprises a limiting plate (52), and the first waist-shaped sliding groove (52a) and the second waist-shaped sliding groove (52b) are respectively arranged on the limiting plate (52) corresponding to the first mounting shaft (41) and the second mounting shaft (43).
6. The three-shaft rotation interlocking mechanism for an integrated transfer switch according to claim 5, characterized in that: The third limiting shaft (51), the fourth limiting shaft (53) and the fifth limiting shaft (54) are arranged on the side of the limiting plate (52) away from the support plate assembly (4).
7. The three-shaft rotation interlocking mechanism for the integrated transfer switch according to claim 5, characterized in that: The convex strips are arranged on the top and the bottom of the side of the limiting plate (52) away from the support plate assembly (4), and the guide channel for the interlocking plate assembly (6) to slide back and forth is formed between the two convex strips. The two empty grooves are respectively arranged on the top of the limiting plate (52), and the first empty groove (55) is arranged below the first rotating shaft assembly (1) and the second empty groove (56) is arranged below the second rotating shaft assembly (2).
8. The three-shaft rotation interlocking mechanism for the integrated transfer switch according to claim 7, characterized in that: The interlocking plate assembly (6) is slidingly installed on the limiting plate (52) and can slide back and forth along the limiting plate (52), the interlocking plate assembly (6) comprises an interlocking plate (62), first and second arc-shaped pressing surfaces (62f and 62e) are respectively arranged on both sides of the top of the interlocking plate (62), an upper accommodation groove (62h) is arranged between the first and second arc-shaped pressing surfaces (62f and 62e) at a position close to the first arc-shaped pressing surface (62f) on the top of the interlocking plate (62), and a lower accommodation groove (62i) is formed by concave on the middle of the bottom of the interlocking plate (62); first, second and third waist-shaped grooves (62a, 62b and 62c) are respectively arranged on the interlocking plate (62) and are sleeved outside the third, fourth and fifth limiting shafts (51, 53 and 54), first and second limiting protrusions (62d and 62g) are arranged on the top of the interlocking plate (62), the first limiting protrusion (62d) is located between the upper accommodation groove (62h) and the second arc-shaped pressing surface (62e) and is arranged on the top edge of the second arc-shaped pressing surface (62e), and the second limiting protrusion (62g) is located between the upper accommodation groove (62h) and the first limiting protrusion (62d) and is arranged on the top of the upper accommodation groove (62h) close to the first limiting protrusion (62d) side; first and second fixing pins (61 and 63) are arranged on the side of the interlocking plate (62) away from the limiting plate (52), and the first and second fixing pins (61 and 63) are respectively arranged on the two sides of the lower accommodation groove (62i); the part between the first arc-shaped pressing surface (62f) and the upper accommodation groove (62h) is opposite to the first avoidance groove (55) of the limiting plate (52).
9. The three-shaft rotation interlocking mechanism for the integrated transfer switch according to claim 8, characterized in that: The spring assembly comprises first and second reset springs (7 and 17) and a bracket (20), the bracket (20) is fixed on the limiting plate (52) and located in the lower accommodation groove (62i) of the interlocking plate (62), the lower accommodation groove (62i) can slide back and forth relative to the bracket (20), one end of the first reset spring (7) is sleeved on the first fixing pin (61), and the other end is hung and buckled in a pre-set hole at one end of the bracket (20), one end of the second reset spring (17) is sleeved on the second fixing pin (63), and the other end is hung and buckled in a pre-set hole at the other end of the bracket (20).
10. The three-shaft rotation interlocking mechanism for an integrated transfer switch according to claim 7, characterized in that: The pressing plate assembly comprises first and second pressing plate assemblies (10 and 11). The first pressing plate assembly (10) is rotatably installed on one end of the support plate assembly (4) through a third mounting shaft (10c), one end of the first pressing plate assembly (10) is attached to the lower end of the swing arm of the second rotating shaft assembly (2), the other end is in position correspondence with the second air avoiding groove (56) and can be rotated into the second air avoiding groove (56) under the driving of the second rotating shaft assembly (2), meanwhile, the first pressing plate assembly (10) is also slidably connected with one of the waist-shaped sliding grooves of the limiting rod (12); a first torsion spring (18) is coaxially sleeved on the third mounting shaft (10c), two torsion arms of the first torsion spring (18) are respectively installed on the support plate assembly (4) and the first pressing plate assembly (10); The second pressing plate assembly (11) is rotatably installed on the other end of the support plate assembly (4) through a fourth mounting shaft (11c); one end of the second pressing plate assembly (11) is attached to the lower end of the swing arm of the first rotating shaft assembly (1), the other end is in position correspondence with the first air avoiding groove (55) and can be rotated into the first air avoiding groove (55) under the driving of the first rotating shaft assembly (1), meanwhile, the second pressing plate assembly (11) is also slidably connected with the other of the waist-shaped sliding grooves of the limiting rod (12); a second torsion spring (19) is coaxially sleeved on the fourth mounting shaft (11c), two torsion arms of the second torsion spring (19) are respectively installed on the support plate assembly (4) and the second pressing plate assembly (11).