A switching mechanism for a dual power transfer switch

Abstract

The application discloses a switching operation mechanism of a double power supply transfer switch, which comprises an input swing frame, a switching connecting rod group and a tripping assembly arranged on two sides respectively, the tripping assembly comprises a clamping block and a resisting frame, a blocking arm is arranged on the input swing frame and faces the clamping block, grooves are arranged on the two sides of the blocking arm, the clamping block is connected with elastic members so that the clamping block has a tendency to move towards the input swing frame, and the blocking arm is in contact with the clamping block to make the switch in an open state; when the blocking arm rotates to make the grooves correspond to the clamping block, the clamping block is clamped and limited in the grooves to make the switch in a closed state; the clamping block moves in the X-axis direction, the resisting frame moves in the Y-axis direction, an inclined surface is arranged on the resisting frame, the inclined surface is in contact with the clamping block, and the clamping block is pushed to move in the X-axis direction by the inclined surface when the resisting frame moves in the Y-axis direction, so that the clamping block is driven to move away from the groove. The application improves the compactness and reasonable layout of the structure arrangement, reduces the overall volume occupation, and makes the product volume more compact.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical switch, in particular to a kind of double power transfer switch's opening and closing operating mechanism. BACKGROUND

[0002] In double power transfer switch, there are two switches of normal use and backup, and the operating mechanism is connected by input shaft, and the rotating shaft is rotated by the normal and backup electromagnetic coil driving operating mechanism to carry out the closing and opening of two-way, or it can be manually switched by handle, and the rotating shaft is connected to the output shaft of normal side and backup side by opening and closing assembly, and the output shaft is connected to the specific moving contact to carry out the opening and closing with static contact. Tripping mechanism is also set to cooperate with opening and closing assembly, when opening and closing assembly is locked after closing to ensure the stability of closing state, and tripping mechanism is to release the locking state, so that opening and closing assembly can be reset, thereby realizing opening or closing to the other side. Locking state is generally locked by the movement of clamping piece to clamp a part of opening and closing assembly, so as to achieve the effect of limiting, and when opening, in order to make the reverse movement of clamping piece to trip, tripping mechanism generally adopts the same direction movement of clamping piece to drive clamping piece linkage to complete tripping opening. Thus, for the overall arrangement of mechanism, more space of clamping piece and tripping mechanism movement direction is occupied, which causes the increase of volume of double power transfer switch. SUMMARY

[0003] The purpose of the present application is to overcome the shortcomings of the prior art, provide a kind of double power transfer switch's opening and closing operating mechanism, the connecting rod group for driving opening and closing is arranged in two arrangement areas with tripping assembly, so that the two do not interfere with each other to move, the clamping piece and abutment frame of tripping assembly are arranged to move in different axial directions, so that the continuous arrangement of structure in one direction can be reduced, thereby reducing the width required by mechanism arrangement, reducing the overall volume, so that the volume of product can be more compact, and the structure layout is optimized.

[0004] The application adopts the following technical scheme: a switching operation mechanism of a dual-power transfer switch, comprising a mounting frame, an input shaft, a normal side output shaft and a standby side output shaft rotatably arranged on the mounting frame, the input shaft being connected with the normal side output shaft and the standby side output shaft through a switching assembly, the switching assembly comprising an input swing frame, a normal side linkage group, a standby side linkage group and a tripping assembly, the input swing frame being sleeved on the input shaft to rotate synchronously, the input swing frame being connected with the normal side linkage group and the standby side linkage group on both sides, the normal side linkage group being connected with the normal side output shaft, the standby side linkage group being connected with the standby side output shaft, the input swing frame forming a first arrangement area and a second arrangement area on both sides of the mounting frame, the normal side linkage group and the standby side linkage group being located in the first arrangement area, and the tripping assembly being located in the second arrangement area; the tripping assembly comprising a clamping block and a contact frame, the input swing frame being provided with a blocking arm towards the clamping block, the blocking arm being provided with grooves on both sides, the clamping block being connected with a first elastic member to make the clamping block have a tendency to move towards the input swing frame, and the blocking arm being used to make the dual-power transfer switch be in a switching-off state when the blocking arm abuts against the clamping block; when the blocking arm rotates to make the grooves correspond to the clamping block, the clamping block moves into the grooves and is limited therein to make the dual-power transfer switch be in a switching-on state; the clamping block moves in an X-axis direction in the second arrangement area, the contact frame moves in a Y-axis direction in the second arrangement area, the contact frame is provided with an inclined surface, the inclined surface abuts against the clamping block, and the clamping block moves in an X-axis direction by being pushed by the inclined surface when the contact frame moves in a Y-axis direction, so as to drive the clamping block to move away from the grooves.

[0005] The application has the following advantages: the first arrangement area and the second arrangement area are arranged on both sides of the input swing frame, so that the linkage groups and the tripping assembly do not interfere with each other during movement, the structure layout is optimized, and the design and installation are facilitated; in the second arrangement area, the X-axis movement of the clamping block is used to limit the positions of switching-off and two-way switching-on by good cooperation of the blocking arm and the grooves on the input swing frame, the X-axis movement of the clamping block is realized by the Y-axis movement of the contact frame and the inclined surface arranged on the contact frame, the position limitation is released, the structure is arranged in different directions and moves in different directions, the continuous arrangement of the structure in one direction is reduced, the width required by the mechanism arrangement is reduced, the compactness of the structure arrangement is improved, the overall volume is reduced, and the product volume can be smaller. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a three-dimensional structure schematic diagram of the dual-power transfer switch in the switching-off state.

[0007] Figure 2 is a three-dimensional structure schematic diagram of the dual-power transfer switch in the standby side switching-on state.

[0008] Figure 3 is a three-dimensional structure schematic diagram of the dual-power transfer switch in the normal side switching-on state.

[0009] Figure 4 is the schematic diagram of the double power supply transfer switch of the present application after removing some parts.

[0010] Figure 5 is the schematic diagram of the double power supply transfer switch of the present application after removing some parts.

[0011] Figure 6 is the schematic diagram of the double power supply transfer switch of the present application after removing some parts. DETAILED DESCRIPTION

[0012] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0013] As shown in Figure 1 , 2 , 3, 4, 5, 6, it is the specific embodiment of the double power supply transfer switch of the present application. The embodiment includes a mounting frame 0, an input shaft 1, a commonly used side output shaft 2 and a standby side output shaft 3 rotatably arranged on the mounting frame 0, the input shaft 1 is connected with the commonly used side output shaft 2 and the standby side output shaft 3 through the switching assembly 4 respectively, the switching assembly 4 includes an input swing frame 40, a commonly used side linkage group, a standby side linkage group and a tripping assembly 7, the input swing frame 40 is sleeved on the input shaft 1 for synchronous rotation, the two sides of the input swing frame 40 are connected with the commonly used side linkage group and the standby side linkage group respectively, the commonly used side linkage group is connected with the commonly used side output shaft 2, the standby side linkage group is connected with the standby side output shaft 3, the input swing frame 40 forms a first arrangement area and a second arrangement area on the two sides of the mounting frame 0 respectively, the commonly used side linkage group and the standby side linkage group are located in the first arrangement area, and the tripping assembly 7 is located in the second arrangement area; the tripping assembly 7 includes a clamping block 6 and a contact frame 71, the input swing frame 40 is provided with a blocking arm 401 facing the clamping block 6, recesses 402 are arranged on the two sides of the blocking arm 401, the clamping block 6 is connected with a first elastic member to make the clamping block 6 have a tendency to move towards the input swing frame 40, and the double power supply transfer switch is in an open state when the blocking arm 401 abuts against the clamping block 6; when the recesses 402 correspond to the clamping block 6 by rotating the blocking arm 401, the clamping block 6 moves into the recesses 402 and is limited therein to make the double power supply transfer switch in a closed state; the clamping block 6 moves in the X-axis direction in the second arrangement area, the contact frame 71 moves in the Y-axis direction in the second arrangement area, an inclined surface 711 is arranged on the contact frame 71, the inclined surface 711 abuts against the clamping block 6, and the clamping block 6 is pushed to move in the X-axis direction by the inclined surface 711 when the contact frame 71 moves in the Y-axis direction, so as to drive the clamping block 6 to move away from the recesses 402.

[0014] The application is used, the input shaft 1 is connected with the operating mechanism (not shown in the back in the figure), the operating mechanism drives the input shaft 1 to rotate through the electromagnetic valve to rotate the input swing frame 40, and then the two-way closing and opening are carried out, and the operating mechanism can also be manually switched through the handle. The commonly used side output shaft 2 is connected to the commonly used side moving contact, and the standby side output shaft 3 is connected to the standby side moving contact, and when the output shaft rotates, the moving contact is driven to contact the static contact to close or separate from the static contact to open. As Figure 1 As shown in the opening state, the commonly used side linkage group and the standby side linkage group are in the initial position, the pull spring 43 is connected between the two linkage groups and keeps the natural state of not being pulled open; the other side of the blocking arm 401 abuts the clamping block 6 on the outside, and the clamping block 6 is connected with the first elastic member (not shown in the figure), which can be a spring, a torsion spring, a pull spring or the like, and the first elastic member accumulates the elastic force to abut the clamping block 6 against the blocking arm 401; as Figure 2 As shown, when closing, the input swing frame 40 rotates to drive the standby side linkage group to rotate the standby side output shaft 3, and the other side of the blocking arm 401 rotates downward to gradually correspond the upper groove 402 to the clamping block 6, and when the input swing frame 40 rotates to the position, the clamping block 6 is driven to move left to the groove 402 by the elastic force of the first elastic member to complete the limiting, and the input swing frame 40 cannot rotate to make the closing stable. When the clamping block 6 and the groove 402 need to be tripped, the abutting frame 71 is driven to move downward, the inclined surface 711 on the abutting frame 71 gradually pushes the clamping block 6 to the right, and when the clamping block 6 is mostly separated from the groove 402, the input swing frame 40 can be opened by the restoring force, the clamping block 6 is limited by the blocking arm 401 again, or the input swing frame 40 continues to rotate to close the other side. In this way, the structure is arranged in the second arrangement area, the movement of the clamping block 6 is along the X-axis, the movement of the abutting frame 71 is along the Y-axis, and the two can be arranged staggered in space structure, only the inclined surface 711 contacts the clamping block 6, so that the space occupied by the two is reduced, the compactness of the structure arrangement can be improved, the overall volume is reduced, and the product volume can be more compact. On the other hand, the two linkage groups and the tripping assembly are arranged in two arrangement areas, which is convenient for movement and disassembly and debugging.

[0015] As an improved specific embodiment, the waist-shaped arrangement hole 712 is arranged on the abutting frame 71, the arrangement column 02 is arranged on the mounting frame 0, the waist-shaped arrangement hole 712 accommodates the arrangement column 02, and the abutting frame 71 is kept moving along the Y-axis and limited to the movement limit position by the cooperation of the arrangement column 02 and the waist-shaped arrangement hole 712.

[0016] As Figure 1 , 2As shown in Figures 3, 4, and 6, the width of the waist-shaped arrangement hole 712 is adapted to the arrangement column 02, and its length is arranged vertically. This guides and restricts the Y-axis movement of the contact frame 71. The extreme positions of the vertical movement of the contact frame 71 are limited by the arrangement column 02 abutting against the upper and lower ends of the waist-shaped arrangement hole 712, ensuring that the contact frame 71 is arranged and moved in an orderly manner within the range, and effectively limiting the initial position so that the contact frame 71 returns to the initial position well after completing the release action. Preferably, a set of waist-shaped arrangement holes 712 are provided at the upper and lower positions of the contact frame 71 to cooperate with the arrangement column 02, thereby improving the stability of the structural restriction.

[0017] As an improved specific implementation, the tripping assembly 7 also includes an electromagnetic coil 72. The electromagnetic coil 72 is disposed on the side of the contact frame 71 and connected to the contact frame 71 through a suction shaft 73. A spring 74 is also sleeved on the suction shaft 73. When the electromagnetic coil 72 is energized, it drives the suction shaft 73 to move and cause the contact frame 71 to move in the Y-axis, thereby driving the locking block 6 to leave the groove 402. The spring 74 provides the restoring force for the contact frame 71 to reset.

[0018] like Figure 1 , 2 As shown in Figures 3, 4, and 6, the electromagnetic coil 72 and the attraction shaft 73 can be arranged in an orderly manner on the side to accommodate the arrangement of the contact frame 71. They occupy a small amount of space in the X-axis and can be well arranged with sufficient space in the Y-axis. The contact frame 71 extends to the side and connects to the attraction shaft 73. The above structure can realize the electric drive of the contact frame 71 to complete the release. After the release is completed, the electromagnetic coil 72 is de-energized, and the spring 74 can push the attraction shaft 73 and the contact frame 71 upward to reset, ensuring that the structure stays in the initial position in an orderly manner.

[0019] As an improved specific implementation, the locking block 6 is mounted on a rotating frame 61, which is mounted on the mounting frame 0 via a arranging column 02. The rotation of the rotating frame 61 causes the locking block 6 to swing in the X-axis.

[0020] like Figure 1 , 2 As shown in Figures 3 and 4, the rotating frame 61 can swing along the X-axis with the arrangement column 02 as the center. The rotating frame 61 acts as a swing arm, and the space occupied by the movement of the block 6 is small and the arrangement is convenient. Preferably, the arrangement column 02 of the lower part of the contact frame 71 can be the same as the arrangement column 02 of the rotating frame 61, so that the arrangement of the structure is more compact and the space occupied by the components is reduced.

[0021] As an improved specific implementation, the card block 6 is a cylindrical body, which is rotatably mounted on a rotating shaft 62, and the rotating shaft 62 is rotatably connected to the rotating frame 61.

[0022] likeFigure 1 、 2 , as shown in 3, 4, 6, the block 6 is arranged by a rotating shaft 62, and the cylindrical structure can roll with the contacted blocking arm 401, the inner wall of the groove 402 and the inclined surface 711 when moving, reducing the wear between structures and adjusting the smooth movement to avoid jamming.

[0023] As an improved embodiment, the rotating shaft 62 is further rotatably connected with a swing piece 63, and the abutting frame 71 is provided with a matching shaft 714. The swing piece 63 is provided with a sliding groove 64, and the matching shaft 714 is arranged in the sliding groove 64. When the abutting frame 71 and the block 6 are relatively displaced, the swing piece 63 swings and the matching shaft 714 slides in the sliding groove 64.

[0024] As shown in Figure 1 、 2 , 3, 6, when arranging the structure, the swing piece 63 is arranged on the other side of the rotating frame 61 to provide structural support for the reciprocating movement of the block 6 and improve the structural stability of the block 6. Through the design of the matching shaft 714 on the abutting frame 71 and the sliding groove 64 on the swing piece 63, when the abutting frame 71 and the block 6 are relatively displaced, the matching shaft 714 can slide in the sliding groove 64 and cooperate with the swing of the swing piece 63 to prevent the structure from being jammed, ensuring the stability of the structure while moving smoothly.

[0025] As an improved embodiment, the abutting frame 71 is further provided with a force applying plate 713, which is perpendicular to the abutting frame 71, so that the force applying plate 713 can be pushed upward or downward by human force.

[0026] As shown in Figure 1 、 2 , 3, 4, 6, the specific force applying plate 713 is arranged on the upper part, and the surface thereof faces upward, so that the button outside the shell can be inserted into the shell to abut against the force applying plate 713 and press the abutting frame 71 to release the human force. According to the operation mode and the orientation of the component arrangement, the force applying plate 713 can face upward or downward to meet the needs of different arrangements and operations.

[0027] As an improved embodiment, the common side linkage group includes a common side swing frame 41, a common side guide frame 411, a common side transmission rod 412 and a common side linkage 413, the standby side linkage group includes a standby side swing frame 42, a standby side guide frame 421, a standby side transmission rod 422 and a standby side linkage 423, and the two sides of the input swing frame 40 are respectively hinged with the common side transmission rod 412 and the standby side transmission rod 422; the common side transmission rod 412 is provided with a first waist-shaped hole 414 along the length direction thereof, a common side guide shaft 415 capable of sliding is arranged in the first waist-shaped hole 414, the common side guide shaft 415 is respectively rotatably connected with the common side guide frame 411 and the common side linkage 413, one end of the common side guide frame 411 is rotatably arranged on the mounting frame 0, the movement track of the common side guide shaft 415 is limited to a circular arc around the rotation shaft of the common side guide frame 411, the common side linkage 413 is hinged with the common side swing frame 41, and the common side swing frame 41 is sleeved on the common side output shaft 2 to rotate synchronously; the standby side transmission rod 422 is provided with a second waist-shaped hole 424 along the length direction thereof, a standby side guide shaft 425 capable of sliding is arranged in the second waist-shaped hole 424, the standby side guide shaft 425 is respectively rotatably connected with the standby side guide frame 421 and the standby side linkage 423, one end of the standby side guide frame 421 is rotatably arranged on the mounting frame 0, the movement track of the standby side guide shaft 425 is limited to a circular arc around the rotation shaft of the standby side guide frame 421, and the standby side linkage 423 is hinged with the standby side swing frame 42, which is sleeved on the standby side output shaft 3 to rotate synchronously; a second elastic member 43 is further arranged between the common side swing frame 41 and the standby side swing frame 42, so that an elastic force is applied to the other side when one side moves.

[0028] As shown in FIG. 1, the common side and the standby side are in the initial position, and the second elastic member 43 is in the natural state without being pushed or pulled. Figure 1 As shown in FIG. 1, the common side and the standby side are in the initial position, and the second elastic member 43 is in the natural state without being pushed or pulled.

[0029] As shown in FIG. 1, the common side and the standby side are in the initial position, and the second elastic member 43 is in the natural state without being pushed or pulled. Figure 3As shown, when the input swing frame 40 swings at the position where the action is to be transmitted to the normal side swing frame 41, first, the normal side transmission rod 412 is moved to the side wall of the first waist hole 414 on the length direction side to abut against the normal side guide shaft 415, and then the continuous movement can drive the normal side guide shaft 415, that is, the action of the second layer of connecting rods finally completes the swing of the normal side swing frame 41, thereby driving the normal side output shaft 2 to be in place and the overall mechanism is limited to the state of normal side closing; in the process of closing the normal side, the standby side transmission rod 422 on the standby side structure and the second waist hole 424 thereon move in the opposite direction and do not abut against the standby side guide shaft 425, so that the standby side stays in the initial position; at the same time, the swing of the normal side swing frame 41 pulls the second elastic member 43 to store energy, and the force will act on the standby side swing frame 42 to keep it in the initial position. When the opening is needed, the overall mechanism can be unlocked by the tripping mechanism, and the elastic force released by the second elastic member 43 can reset the normal side swing frame 41 and the connecting rods connected thereto to the initial position. The resetting process drives the normal side guide shaft 415 to move through the normal side connecting rod 413 and the first waist hole 414, which can drive the normal side transmission rod 412 and the input swing frame 40 to reset. Except that the standby side swing frame 42 is limited by the force of the second elastic member 43 and the standby side transmission rod 422 is driven by the input swing frame 40 to change the position, the standby side remains in the initial state.

[0030] If the standby side closing is to be performed, the closing process of the normal side can be referred to, and the final mechanism state is shown as Figure 2 The upper and lower arrangement positions of the normal side and the standby side of the dual power transfer switch in the mounting frame can be defined or interchanged according to habits during manufacturing or use.

[0031] The structure design of the present application can drive the normal side and the standby side to perform certain structural linkage through the input swing frame 40, and then through the design of the waist hole on the transmission rod cooperating with the guide shaft, the normal side and the standby side can produce differential effect, one side closing and opening does not drive the other side to move, reduces the mutual restriction of the two sides during opening, ensures the opening efficiency, and keeps the closing process orderly and stable. The second elastic member 43 connects the two swing frames, so that when one side rotates to close, it can apply an elastic force to the other side to keep the other side stable, and the second elastic force 43 can also act on both sides during opening, promoting the opening of the side and the closing of the other side. The setting of the guide frame limits the movement track of the guide shaft, which determines the movement and stay state between the connecting rod structures and improves the strength and stability of the connecting rod structure. On the other hand, the movement space between the connecting rods is reduced, like the transmission rod having swing and relative displacement movement state, which can make the overall movement occupy less space and optimize the structure layout.

[0032] As an improved specific embodiment, the arc-shaped hole 44 is arranged on the common side swing frame 41 and the standby side swing frame 42, and the limiting column 01 is arranged on the mounting frame 0 corresponding to the arc-shaped hole 44. The swing of the common side swing frame 41 and the standby side swing frame 42 causes the displacement of the arc-shaped hole 44 relative to the limiting column 01, and the limit positions of the common side swing frame 41 and the standby side swing frame 42 are limited by the abutting of the arc-shaped hole 44 and the limiting column 01.

[0033] As shown in Figure 1 , 2 , 3, 4, 5, the limiting column 01 is arranged in the arc-shaped hole 44, so that the limit positions of the common side swing frame 41 and the standby side swing frame 42 are limited, the common side swing frame 41 and the standby side swing frame 42 can be better limited to the initial position, and the second elastic member 43 can better limit the common side swing frame 41 and the standby side swing frame 42, and avoid the arbitrary rotation of the common side swing frame 41 and the standby side swing frame 42 without external force and mechanism driving. The arrangement of the arc-shaped hole 44 also achieves the effect of saving materials on the common side swing frame 41 and the standby side swing frame 42, saves the cost of raw materials, and relies on the limiting column 01 to complete the better corresponding installation and positioning of the common side swing frame 41 and the standby side swing frame 42.

[0034] As an improved specific embodiment, the common side swing frame 41 forms the first outer arm 416 and the first inner arm 417 on both sides of the common side output shaft 2, the first inner arm 417 is hinged to the common side connecting rod 413, and the first outer arm 416 is connected to the second elastic member 43; the standby side swing frame 42 forms the second outer arm 426 and the second inner arm 427 on both sides of the standby side output shaft 3, the second inner arm 427 is hinged to the standby side connecting rod 423, and the second outer arm 426 is connected to the second elastic member 43; the second elastic member 43 is a tension spring, and the two ends thereof are respectively hooked on the horizontal shafts of the first outer arm 416 and the second outer arm 426.

[0035] As shown in Figure 1 , 2, 3, 4, 5, the second elastic member 43 is connected on the opposite outer side by the first outer arm 416 and the second outer arm 426, on the one hand, effectively avoiding the interference between the structures, facilitating the staff to install the connecting rod structure on the inner side and the second elastic member 43 on the outer side; on the other hand, the outer arm and the inner arm are arranged on the two sides of the swing frame relative to the output shaft, forming a lever structure, which is more conducive to the stress stability of the swing frame structure and improves the stress limiting of the commonly used side swing frame 41 and the standby side swing frame 42 in the closing state. In specific implementation, the outer arm and the inner arm can be set to have the same length, and the structure weight and the force arm are symmetrical, and the corresponding arc-shaped hole 44 is arranged at the middle position to further make the structure gravity center in the middle state. As a mature elastic component, the staff can select and use the tension specification according to the needs, and the horizontal shaft is arranged on the first outer arm 416 and the second outer arm 426, and then the tension spring is hooked. The swing frame structure on both sides is relatively compact, and the swing displacement is not large, so the tension spring will not be loose; the directly hooked tension spring installation and disassembly are relatively simple, and other more complex installation structures are not required to limit the tension spring, which can effectively reduce the cost.

[0036] As an improved specific embodiment, the input swing frame 40, the commonly used side swing frame 41, the commonly used side guide frame 411, the commonly used side transmission rod 412, the commonly used side connecting rod 413, the standby side swing frame 42, the standby side guide frame 421, the standby side transmission rod 422 and the standby side connecting rod 423 all have front and back two pieces 5, and the front and back two pieces 5 are connected into one body through the transversely arranged connecting piece 51.

[0037] As shown in Figure 1 , 2 , 3, 4, 5, specifically refer to Figure 5 , each rod structure is specifically arranged as front and back two pieces 5 to provide good arrangement strength for the shaft of the connecting position; after the two pieces 5 are connected through the connecting piece 51, they form a firm whole, ensuring the structure thickness and the structure strength, and the two pieces 5 and the connecting piece 51 are preferably integrally formed through a bending process, so that the overall structure strength is good in consistency; on the other hand, while ensuring the structure thickness, the middle space is hollow, which is convenient for different connecting rods to be arranged in different thicknesses to complete the staggered connection at the hinge shaft, and the abutting frame 71, the rotating frame 61 and the swing piece 63 at the tripping assembly 7 are arranged in the middle space of the input swing frame 40, which reduces the cost of materials, reduces the weight of components, optimizes the structure space and reduces the volume occupied by the mechanism. In order to adapt to the front and back two parts formed by the front and back pieces 5 and the recess 402, the whole clamping block 6 is arranged in two groups at the front and back positions, and the third group is arranged at the inclined surface 711 corresponding to the abutting frame 71 in the middle, and the three groups of clamping blocks 6 can independently rotate on the rotating shaft 62, so that the movement between the structures is in an independent rolling friction state, making the structure movement smoother and reducing the jamming.

[0038] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical scheme falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A switching operation mechanism of a dual power transfer switch, comprising a mounting frame (0), an input shaft (1), a normally used side output shaft (2) and a standby side output shaft (3) rotatably arranged on the mounting frame (0), the input shaft (1) being connected with the normally used side output shaft (2) and the standby side output shaft (3) through a switching assembly (4) respectively, the switching assembly (4) comprising an input swing frame (40), a normally used side linkage group, a standby side linkage group and a tripping assembly (7), the input swing frame (40) being sleeved on the input shaft (1) to rotate synchronously, two sides of the input swing frame (40) being connected with the normally used side linkage group and the standby side linkage group respectively, the normally used side linkage group being connected with the normally used side output shaft (2), and the standby side linkage group being connected with the standby side output shaft (3), characterized in that: The input swing frame (40) forms a first arrangement area and a second arrangement area on both sides of the mounting frame (0), the normal side linkage group and the standby side linkage group are located in the first arrangement area, and the tripping assembly (7) is located in the second arrangement area; the tripping assembly (7) comprises a clamping block (6) and a contact frame (71), the input swing frame (40) is provided with a blocking arm (401) towards the clamping block (6), recesses (402) are arranged on both sides of the blocking arm (401), the clamping block (6) is connected with a first elastic member, so that the clamping block (6) has a tendency to move towards the input swing frame (40), and when the blocking arm (401) contacts the clamping block (6), the double power transfer switch is in an open state; when the blocking arm (401) rotates to make the recess (402) correspond to the clamping block (6), the clamping block (6) moves into the recess (402) and is limited therein, so that the double power transfer switch is in a closed state; the clamping block (6) moves in the X-axis direction in the second arrangement area, the contact frame (71) moves in the Y-axis direction in the second arrangement area, an inclined surface (711) is arranged on the contact frame (71), the inclined surface (711) is in contact with the clamping block (6), and when the contact frame (71) moves in the Y-axis direction, the clamping block (6) is pushed to move in the X-axis direction by the inclined surface (711), so as to drive the clamping block (6) to move away from the recess (402).

2. The opening and closing operating mechanism of a dual power transfer switch according to claim 1, characterized in that: A waist-shaped arrangement hole (712) is formed in the contact frame (71), an arrangement column (02) is arranged on the mounting frame (0), the arrangement column (02) is accommodated in the waist-shaped arrangement hole (712), and the contact frame (71) is limited to move in the Y-axis direction and is limited to move to a limit position by cooperation of the arrangement column (02) and the waist-shaped arrangement hole (712).

3. The opening and closing operating mechanism of a dual power transfer switch according to claim 2, characterized in that: The tripping assembly (7) further comprises an electromagnetic coil (72), the electromagnetic coil (72) is arranged on the side of the contact frame (71) and is connected with the contact frame (71) through a suction shaft (73), a spring (74) is further sleeved on the suction shaft (73), the electromagnetic coil (72) is energized to drive the suction shaft (73) to displace and drive the contact frame (71) to move in the Y-axis direction, so as to drive the clamping block (6) to move away from the recess (402), and the spring (74) provides a restoring force for resetting the contact frame (71).

4. The opening and closing operating mechanism of a dual power transfer switch according to claim 1 or 2 or 3, characterized in that: The clamping block (6) is arranged on a rotating frame (61), the rotating frame (61) is arranged on the mounting frame (0) through an arrangement column (02), and the rotation of the rotating frame (61) drives the clamping block (6) to swing in the X-axis direction.

5. The opening and closing operating mechanism of a dual power transfer switch according to claim 4, characterized in that: The clamping block (6) is a cylindrical body, which is rotatably arranged on a rotating shaft (62), and the rotating shaft (62) is rotatably connected with the rotating frame (61).

6. The opening and closing operating mechanism of a dual power transfer switch according to claim 5, characterized in that: The rotating shaft (62) is further rotatably connected with a swing member (63), the contact frame (71) is provided with a matching shaft (714), a sliding groove (64) is formed in the swing member (63), the matching shaft (714) is arranged in the sliding groove (64), and when the contact frame (71) and the clamping block (6) relatively displace, the swing member (63) swings and the matching shaft (714) slides in the sliding groove (64).

7. A switching mechanism for a dual power transfer switch according to claim 1 or 2 or 3, wherein: The common side linkage group comprises a common side swing frame (41), a common side guide frame (411), a common side transmission rod (412) and a common side linkage (413), the standby side linkage group comprises a standby side swing frame (42), a standby side guide frame (421), a standby side transmission rod (422) and a standby side linkage (423), and the two sides of the input swing frame (40) are respectively hinged with the common side transmission rod (412) and the standby side transmission rod (422); The common side transmission rod (412) is provided with a first waist-shaped hole (414) along the length direction thereof, the common side guide shaft (415) capable of sliding is arranged in the first waist-shaped hole (414), the common side guide shaft (415) is respectively rotatably connected with the common side guide frame (411) and the common side linkage (413), one end of the common side guide frame (411) is rotatably arranged on the mounting frame (0), the movement track of the common side guide shaft (415) is limited to the circular arc around the rotation shaft of the common side guide frame (411), and the common side linkage (413) is hinged with the common side swing frame (41), the common side swing frame (41) is sleeved on the common side output shaft (2) and rotates synchronously. The standby side transmission rod (422) is provided with a second waist-shaped hole (424) along the length direction thereof, the standby side guide shaft (425) capable of sliding is arranged in the second waist-shaped hole (424), the standby side guide shaft (425) is respectively rotatably connected with the standby side guide frame (421) and the standby side linkage (423), one end of the standby side guide frame (421) is rotatably arranged on the mounting frame (0), the movement track of the standby side guide shaft (425) is limited to the circular arc around the rotation shaft of the standby side guide frame (421), and the standby side linkage (423) is hinged with the standby side swing frame (42), the standby side swing frame (42) is sleeved on the standby side output shaft (3) and rotates synchronously. The second elastic member (43) is further arranged between the common side swing frame (41) and the standby side swing frame (42), so that when one side moves, an elastic force is applied to the other side.

8. The opening and closing operating mechanism of a dual power transfer switch according to claim 7, characterized in that: The common side swing frame (41) and the standby side swing frame (42) are both provided with an arc-shaped hole (44), the mounting frame (0) is provided with a limiting column (01) corresponding to the arc-shaped hole (44), the swing of the common side swing frame (41) and the standby side swing frame (42) causes the arc-shaped hole (44) to displace relative to the limiting column (01), and the limit positions of the common side swing frame (41) and the standby side swing frame (42) are limited by the abutting of the two ends of the arc-shaped hole (44) and the limiting column (01).

9. The opening and closing operating mechanism of a dual power transfer switch according to claim 7, characterized in that: The common side swing frame (41) forms a first outer arm (416) and a first inner arm (417) on both sides of the common side output shaft (2), the first inner arm (417) is hinged to the common side connecting rod (413), and the first outer arm (416) is connected to the second elastic member (43); the standby side swing frame (42) forms a second outer arm (426) and a second inner arm (427) on both sides of the standby side output shaft (3), the second inner arm (427) is hinged to the standby side connecting rod (423), and the second outer arm (426) is connected to the second elastic member (43); the second elastic member (43) is a tension spring, and both ends of the tension spring are respectively hooked on horizontal shafts of the first outer arm (416) and the second outer arm (426).

10. The opening and closing operating mechanism of a dual power transfer switch according to claim 7, characterized in that: The input swing frame (40), the common side swing frame (41), the common side guide frame (411), the common side transmission rod (412), the common side connecting rod (413), the standby side swing frame (42), the standby side guide frame (421), the standby side transmission rod (422) and the standby side connecting rod (423) all have two front and rear pieces (5), and the two front and rear pieces (5) are connected into one body through a transversely arranged connecting piece (51).

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