A three-station mechanism auxiliary transmission device

Abstract

The present invention discloses a three-position mechanism auxiliary transmission device, which solves the problem of inflexible and low efficiency of the three-position transmission of the switch in the prior art. The present invention includes a four-bar linkage and a trigger mechanism, wherein the four-bar linkage is arranged on the upper part of the integrated switch, the trigger mechanism is arranged inside the integrated switch, the trigger mechanism and the four-bar linkage are linked in series, the input end of the four-bar linkage is connected to the rotating shaft through a gear-like mechanism, and the output end of the four-bar linkage is connected to a sliding plate, which is movably connected to the display mechanism. The present invention has a compact structure, ingenious mechanism design, high integration, small fluctuations during operation, stable transmission, improved product service life and use effect, and has a high market value.

Description

Technical Field

[0001] The invention relates to the technical field of electrical appliances, in particular to a three-station mechanism auxiliary transmission device. Background Art

[0002] At present, the base transmission device in the outdoor high-voltage AC disconnector is divided into two types according to the base structure. One is larger in length, and the driving flange shaft and the driven flange shaft are far apart, and are respectively set at both ends of the base; the other is smaller in length, and the upper two sides are tilted downward, and the driving flange shaft and the driven flange shaft connected at the upper part are close, and tilted outward to form a V-shaped arrangement, which is referred to as a V-type base. The traditional V-type base is assembled from two parts, with poor strength and weak support. It is easy to vibrate when the operating force is large. In addition, the bearing connection between the flange shaft and the base is simple, the bearing is easy to wear, and the reliability is poor. The transmission between the connecting rods is easy to get stuck, resulting in unstable transmission. Summary of the invention

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a three-station mechanism auxiliary transmission device, which solves the problems of inflexible and low efficiency of the three-station transmission of switches in the prior art.

[0004] The technical solution of the present invention is implemented as follows: a three-station mechanism auxiliary transmission device includes a four-bar mechanism and a trigger mechanism, the four-bar mechanism is arranged on the upper part of the integrated switch, the trigger mechanism is arranged inside the integrated switch, the trigger mechanism and the four-bar mechanism are connected in series, the input end of the four-bar mechanism is connected to the rotating shaft through a gear-like mechanism, the output end of the four-bar mechanism is connected to a sliding plate, and the sliding plate is movably connected to the display mechanism.

[0005] The four-bar linkage mechanism comprises a slot plate and a crank arm, both of which are hinged on a clamping plate of the integrated switch, and a connecting plate is hinged between the slot plate and the crank arm.

[0006] The gear-like mechanism comprises a tooth groove portion arranged on the upper part of the groove plate and a screw shaft arranged on the rotating shaft, the screw shaft matches the tooth groove portion; an integrally formed connecting portion is arranged on the outer side of the groove plate, and the connecting portion is connected to the sliding plate.

[0007] The display mechanism comprises a fixed box body, a transparent window plate is arranged at the front of the fixed box body, a mounting plate is arranged at the back of the fixed box body, a sliding plate is slidably arranged on the mounting plate through a positioning pin shaft, an indicator is arranged in the fixed box body, and the indicator is connected to the sliding plate through a swing mechanism.

[0008] The swing mechanism comprises a shift fork fixedly connected to the rotating shaft of the indicator, the shift fork cooperates with the shift shaft arranged on the sliding plate, and the rotating shaft of the indicator is rotatably connected to the mounting plate through a supporting plate that fixes the shift fork.

[0009] The trigger mechanism is connected with the four-bar linkage and the integrated switch through a hexagonal shaft, and corresponds to the micro switch arranged on the integrated switch.

[0010] The trigger mechanism comprises a riveted plate riveted on the hexagonal shaft, a driving plate is fixed on the riveted plate, and the driving plate corresponds to two adjacent micro switches.

[0011] The present invention utilizes a four-bar linkage to achieve power transmission, from the transmission shaft to the indicator and the trigger mechanism, to achieve synchronous indication and triggering, with good transmission reliability and high precision. In addition, a gear-like mechanism is used for power input transmission, which ensures smooth transmission, ensures transmission precision, and is easy to operate and control. The present invention has a compact structure, ingenious mechanism design, high integration, small fluctuations during operation, stable transmission, improved product service life and use effect, and has a high market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0013] Figure 1 It is the overall internal schematic diagram of the present invention.

[0014] Figure 2 for Figure 1 Center A view.

[0015] Figure 3 for Figure 1 Center B view.

[0016] Figure 4 for Figure 1 Center DD view.

[0017] Figure 5 for Figure 1 Center EE view.

[0018] Figure 6 for Figure 1 Center FF view.

[0019] Figure 7 It is a top view schematic diagram of the four-bar linkage mechanism of the present invention.

[0020] Figure 8 This is a schematic diagram of the grounding switch closing fork status.

[0021] Fig. 9 This is a schematic diagram of the four-bar mechanism status when the grounding switch is closed.

[0022] Fig.10 Schematic diagram of the status of the grounding switch closing trigger mechanism.

[0023] Fig.11 This is a schematic diagram of the closing fork status of the disconnector.

[0024] Fig.12 This is a schematic diagram of the four-bar linkage status of the disconnector closing switch.

[0025] Fig.13 This is a schematic diagram of the status of the disconnector closing trigger mechanism. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, in Example 1, a three-station mechanism auxiliary transmission device includes a four-bar linkage A and a trigger mechanism C. The four-bar linkage A is arranged on the upper part of the integrated switch, and the trigger mechanism C is arranged inside the integrated switch. In this embodiment, the integrated switch includes two integrated groups, one integrated group includes a plurality of grounding auxiliary switches QE and a plurality of isolation auxiliary switches QS, and the trigger mechanism C is located between two adjacent grounding auxiliary switches QE and isolation auxiliary switches QS. The trigger mechanism C is linked in series with the four-bar linkage A, and the four-bar linkage drives the trigger mechanism to rotate to realize the corresponding actions of closing the grounding switch and closing the isolation switch. The input end of the four-bar linkage A is connected to the rotating shaft 9 through a gear-like mechanism. The rotating shaft is the power input of the entire transmission device, which can be manually or mechanically transmitted. The output end of the four-bar linkage A is connected to a sliding plate 1, and the sliding plate 1 is movably connected to the display mechanism B. The display mechanism displays the state of the trigger mechanism according to the movement of the four-bar linkage, which is convenient for observation and detection.

[0028] Further, if Figure 7As shown, the four-bar linkage mechanism A includes a slot plate 11 and a crank arm 13, the lower ends of the slot plate 11 and the crank arm 13 are both hinged on the clamping plate 14 of the integrated switch, a connecting plate 12 is hinged between the slot plate 11 and the crank arm 13, one end of the connecting plate is hinged to the middle of the slot plate, and the other end is hinged to the upper part of the crank arm, and the slot plate 11, the crank arm 13, the connecting plate 12 and the clamping plate 14 form a four-bar linkage mechanism. Preferably, the gear-like mechanism includes a tooth groove portion 11-1 arranged on the upper part of the slot plate 11 and a screw shaft 10 arranged on the rotating shaft 9, the screw shaft 10 cooperates with the tooth groove portion 11-1, two screw shafts are arranged on the rotating shaft 9, and the two screw shafts are located on the same diameter line to form a "shaft tooth"; the "shaft tooth" meshes with the tooth groove portion to realize power transmission. An integrally formed connecting portion 11-2 is provided on the outer side of the slot plate 11, and the connecting portion 11-2 is hinged to the sliding plate 1. The connecting portion 11 - 2 and the tooth groove portion 11 - 1 form a T-shaped plate to complete the power transmission from the rotating shaft to the display mechanism.

[0029] like Figure 2 , 3 As shown, embodiment 2 is a three-station mechanism auxiliary transmission device, wherein the display mechanism B includes a fixed box 4, a window transparent plate 2 is provided at the front of the fixed box 4, a mounting plate 5 is provided at the back of the fixed box 4, and the window transparent plate 2 and the mounting plate are both detachably fixedly connected to the fixed box by bolts. The sliding plate 1 is slidably set on the mounting plate 5 through the positioning pin shaft 19, and the sliding plate can move left and right on the mounting plate under the action of the rotating shaft and the four-bar linkage. An indicator 3 is provided in the fixed box 4, and the indicator 3 is connected to the sliding plate 1 through a swing mechanism. On the inner surface of the fixed box 4, there are signs marked with "open", "ground" and "closed", which respectively indicate the state of the trigger mechanism.

[0030] Preferably, the swing mechanism includes a fork 7 fixedly connected to the rotating shaft of the indicator 3, and the rotation of the fork drives the indicator to rotate. The fork 7 cooperates with the shift shaft 8 provided on the sliding plate 1, that is, a long groove is provided in the middle of the fork, and the shift shaft is located in the long groove. When the sliding plate moves left and right, the indicator is driven to rotate through the fork. The rotating shaft of the indicator 3 is rotatably connected to the mounting plate 5 through a support plate 6 for blocking the fork 7. The support plate is fixed to the mounting plate by bolts, supports the rotating shaft of the indicator 3, and blocks the fork at the same time.

[0031] Further, if Figure 4 , 5As shown in , 6, the trigger mechanism C is connected to the four-bar linkage A and the integrated switch through the hexagonal shaft 18. The hexagonal shaft is vertically arranged in the integrated switch. The slot plate 11 and the crank arm 13 are respectively connected with the corresponding hexagonal shaft to form corresponding connection points 1 and 2. The trigger mechanism rotates synchronously with the slot plate 11 and the crank arm 13 to contact the corresponding micro switch. The trigger mechanism C corresponds to the micro switch 15 arranged on the integrated switch. Specifically, the trigger mechanism C includes a riveted plate 17 riveted on the hexagonal shaft 18, and a driving plate 16 is fixed on the riveted plate 17. The driving plate 16 realizes rotational contact with two adjacent micro switches 15. The other structures are the same as those in Example 1.

[0032] The action process is as follows: 1. The grounding switch is closed ( Figures 8-10 ): S1.1. The rotating shaft 9 rotates 360° clockwise, the screw shaft 10 drives the slot plate 11 to make the micro switch driving plate 16 rotate counterclockwise, and the grounding auxiliary switches QE1 and QE2 composed of two rows of micro switches 5 are activated to output electrical signals; S1.2. The slot plate 11 drives the sliding plate 1 to move horizontally to the left, and the indicator 3 rotates counterclockwise to the "ground" position through the fork 7.

[0033] 2. Close the isolating switch ( Figures 11 to 13 ):

[0034] S2.1. The rotating shaft 9 rotates 360° counterclockwise, and the screw shaft 10 drives the slot plate 11 to make the micro switch driving plate 16 rotate clockwise. The isolation auxiliary switches QS1 and QS2 composed of the two rows of micro switches 5 are actuated to output electrical signals. S2.2. The slot plate 11 drives the sliding plate 1 to translate rightward, and the indicator 3 is rotated clockwise to the "closed" position through the shift fork 7.

[0035] 3. Separation state ( Figures 2~5 ): The shift fork is in the middle position, the drive plate is neither in contact with the QS switch nor with the QE switch, and the indicator indicates the "minus" position.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-station mechanism auxiliary transmission device, characterized in that: It comprises a four-bar linkage (A) and a trigger mechanism (C), wherein the four-bar linkage (A) is arranged on the upper part of the integrated switch, the trigger mechanism (C) is arranged inside the integrated switch, the trigger mechanism (C) and the four-bar linkage (A) are connected in series, the input end of the four-bar linkage (A) is connected to the rotating shaft (9) through a gear-like mechanism, the output end of the four-bar linkage (A) is connected to a sliding plate (1), and the sliding plate (1) is movably connected to the display mechanism (B); The four-bar linkage (A) comprises a slot plate (11) and a crank arm (13), wherein the slot plate (11) and the crank arm (13) are both hingedly connected to a clamping plate (14) of an integrated switch, and a connecting plate (12) is hingedly connected between the slot plate (11) and the crank arm (13); an integrally formed connecting portion (11-2) is provided on the outer side of the slot plate (11), and the connecting portion (11-2) is connected to the sliding plate (1); The display mechanism (B) comprises a fixed box (4), an indicator (3) is arranged in the fixed box (4), and the indicator (3) is connected to the sliding plate (1) through a swing mechanism; the swing mechanism comprises a shift fork (7) fixedly connected to the rotating shaft of the indicator (3), and the shift fork (7) cooperates with a shift shaft (8) arranged on the sliding plate (1); The trigger mechanism (C) is connected to the four-bar linkage (A) and the integrated switch via a hexagonal shaft (18), and corresponds to a micro switch (15) arranged on the integrated switch; the trigger mechanism (C) comprises a riveted plate (17) riveted on the hexagonal shaft (18), a driving plate (16) is fixed on the riveted plate (17), and the driving plate (16) corresponds to two adjacent micro switches (15).

2. The three-station mechanism auxiliary transmission device according to claim 1, characterized in that: The gear-like mechanism comprises a tooth groove portion (11-1) arranged on the upper part of the groove plate (11) and a screw shaft (10) arranged on the rotating shaft (9), and the screw shaft (10) cooperates with the tooth groove portion (11-1).

3. The three-station mechanism auxiliary transmission device according to claim 1 or 2, characterized in that: A window transparent plate (2) is provided at the front of the fixed box body (4), a mounting plate (5) is provided at the back of the fixed box body (4), and the sliding plate (1) is slidably arranged on the mounting plate (5) via a positioning pin shaft (19).

4. The three-station mechanism auxiliary transmission device according to claim 1, characterized in that: The rotating shaft of the indicator (3) is rotatably connected to the mounting plate (5) via a supporting plate (6) of a retaining fork (7).

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