Horizontal high-voltage disconnector

Abstract

The utility model discloses a horizontal type high -tension isolator relates to high -tension isolator technical field, the utility model discloses a base plate is provided with two groups of isolator main part at the top of base plate, and the top of two groups isolator main part all is fixedly connected with the handle, and the end of two groups isolator main part is close to all is provided with the swing arm, and the swing arm between two groups is provided with the connecting rod, and the top of two groups swing arm is provided with protection mechanism, protection mechanism includes the sliding slot and the plug cylinder, the utility model discloses the protection mechanism is provided with, thereby reached in the process of high -tension isolator main part in assembly debugging, need when making two groups swing arm unable to separate, can make it insert into the plug cylinder to the right sliding plug rod, at this moment will through the recess, the extension spring, the cooperation of arc block etc. Component makes the plug rod unable to leave the plug cylinder, in this way makes two groups swing arm unable to separate, ensures that high -tension isolator main part can be safely carried out in assembly debugging process.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage disconnecting switch technology, and in particular relates to a horizontal high-voltage disconnecting switch. Background Technology

[0002] High-voltage disconnect switches are important switching devices in the electrical systems of power plants and substations, and must be used in conjunction with high-voltage circuit breakers. Disconnect switches are suitable for indoor installations of three-phase AC 50Hz with a rated voltage of 12kV. They are used to connect, disconnect, or switch lines when high-voltage equipment is under voltage and load.

[0003] Patent document CN117133576A discloses a horizontal high-voltage disconnecting switch, including a disconnecting switch body and an assembly protection device. The assembly protection device is snapped onto the disconnecting switch body. The disconnecting switch body includes a contact mechanism and a contact finger mechanism. The assembly protection device has a first slot that matches the contact mechanism and a second slot that matches the contact finger mechanism.

[0004] The aforementioned application document proposes to install a protection device to ensure the safe assembly and commissioning of the high-voltage disconnector. However, the installation of this protection device is cumbersome and can easily delay the assembly and commissioning process, which is detrimental to the overall use of the device. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a horizontal high-voltage disconnect switch that solves the existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a horizontal high-voltage disconnect switch, comprising a base plate. Two sets of disconnect switch bodies are mounted on the top of the base plate. A rotary handle is fixedly connected to the top of each set of disconnect switch bodies. A swing arm is mounted at the adjacent end of each set of disconnect switch bodies. A connecting rod is provided between the two sets of swing arms. A protective mechanism is mounted on the top of each set of swing arms. The protective mechanism includes a sliding groove and a insert. The sliding groove is located on the top of one set of swing arms. A slider is slidably connected inside the sliding groove. A rod is fixedly connected to the top of the slider. A slot is formed on the surface of the rod. The insert is fixedly connected to the top of the other set of swing arms. A compression spring is located inside the insert. A groove is formed on the inner wall of the insert. A telescopic spring is located inside the groove. An arc-shaped block is slidably connected inside the groove via the telescopic spring. A pull rod is fixedly connected to the end of the arc-shaped block near the telescopic spring. A speed control mechanism is provided on the surface of the slider.

[0008] Furthermore, one set of the swing arms has a contact at the end away from the disconnector body, and the other set of the swing arms has a contact finger at the end away from the disconnector body.

[0009] Furthermore, the opening size of the slot is equal to the opening size of the groove, and the end of the arc-shaped block away from the telescopic spring protrudes from the groove, allowing the arc-shaped block to enter the slot.

[0010] Furthermore, the arc surface of the arc block faces the direction of the insertion rod, and the depth of the groove is greater than the length of the arc block. When the arc surface of the arc block is squeezed, it will retract entirely into the groove.

[0011] Furthermore, the speed control mechanism includes a rotating rod that is rotatably connected to a slider. A rotating wheel is fixedly connected to the end of the rotating rod away from the slider. An opening groove is formed on the surface of the rotating wheel, and an elastic rope is provided inside the opening groove. A resistance block is elastically connected inside the opening groove through the elastic rope.

[0012] Furthermore, the bottom of the rotating wheel initially contacts the top of the swing arm, and the resistance block initially is completely inside the opening slot. When the rotating wheel moves with the insert rod, its bottom rubs against the top of the swing arm and rotates.

[0013] Furthermore, the weight of the resistance block is less than the elastic force of the elastic rope, and the end of the resistance block away from the elastic rope is uneven. The weight of the resistance block itself will not cause it to move out of the opening groove. When the uneven end of the rubber resistance block comes into contact with the top of the swing arm, it will generate greater resistance.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, by setting up a protective mechanism, achieves the following: during the assembly and debugging process of the high-voltage disconnect switch body, when it is necessary to prevent the two sets of swing arms from separating, the plug rod can be slid to the right to insert into the plug cylinder. At this time, the plug rod will be unable to leave the plug cylinder through the cooperation of components such as groove, telescopic spring, and arc block, thereby preventing the two sets of swing arms from separating and ensuring the safe operation of the high-voltage disconnect switch body during the assembly and debugging process.

[0016] 2. This utility model has a speed control mechanism, which controls the speed of the insertion rod by means of components such as the rotating wheel, the opening groove, and the resistance block when the rod is pulled to move out of the insertion cylinder by the compression spring. This prevents the rod from moving too fast and causing damage to the swing arm.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional front view of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional side view of the overall structure of this utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of the protective mechanism structure of this utility model;

[0022] Figure 4 This is a three-dimensional sectional view of the protective mechanism structure of this utility model;

[0023] Figure 5 This is an enlarged view of the structure at point A of this utility model;

[0024] Figure 6 This is a three-dimensional sectional view of the speed control mechanism structure of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Base plate; 2. Disconnecting switch body; 3. Rotary handle; 4. Swing arm; 5. Contact; 6. Contact finger; 7. Linkage rod; 8. Protection mechanism; 81. Slide groove; 82. Slider; 83. Insert rod; 84. Slot; 85. Insert cylinder; 86. Compression spring; 87. Groove; 88. Telescopic spring; 89. Arc block; 810. Pull rod; 9. Speed ​​control mechanism; 91. Rotating rod; 92. Rotating wheel; 93. Opening slot; 94. Elastic rope; 95. Resistance block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6This utility model relates to a horizontal high-voltage disconnect switch, comprising a base plate 1. Two sets of disconnect switch bodies 2 are mounted on the top of the base plate 1. A handle 3 is fixedly connected to the top of each set of disconnect switch bodies 2. A swing arm 4 is mounted at the adjacent end of each set of disconnect switch bodies 2. A connecting rod 7 is provided between the two sets of swing arms 4. A protective mechanism 8 is mounted on the top of each set of swing arms 4. The protective mechanism 8 includes a groove 81 and a insert 85. The groove 81 is formed on the top of one set of swing arms 4, and a slider 82 is slidably connected inside the groove 81. A rod 83 is fixedly connected to the top of the slider 82. A slot 84 is provided on the surface of the rod 83. A cylinder 85 is fixedly connected to the top of another set of swing arms 4. A compression spring 86 is provided inside the cylinder 85. A groove 87 is provided on the inner wall of the cylinder 85. A telescopic spring 88 is provided inside the groove 87. An arc-shaped block 89 is slidably connected inside the groove 87 through the telescopic spring 88. A pull rod 810 is fixedly connected to one end of the arc-shaped block 89 near the telescopic spring 88. A speed control mechanism 9 is provided on the surface of the slider 82.

[0029] As shown in the figure, one set of swing arms 4 has a contact 5 at the end away from the disconnector body 2, and the other set of swing arms 4 has a contact finger 6 at the end away from the disconnector body 2.

[0030] As shown in the figure, the opening size of the slot 84 is equal to the opening size of the groove 87, and the end of the arc-shaped block 89 away from the telescopic spring 88 protrudes from the groove 87, allowing the arc-shaped block 89 to enter the slot 84.

[0031] As shown in the figure, the arc surface of the arc block 89 faces the direction of the insertion rod 83, and the depth of the groove 87 is greater than the length of the arc block 89. When the arc surface of the arc block 89 is squeezed, it will retract into the groove 87 as a whole.

[0032] As shown in the figure, the speed control mechanism 9 includes a rotating rod 91, which is rotatably connected to a slider 82. A rotating wheel 92 is fixedly connected to the end of the rotating rod 91 away from the slider 82. An opening groove 93 is opened on the surface of the rotating wheel 92. An elastic rope 94 is provided inside the opening groove 93. A resistance block 95 is elastically connected to the opening groove 93 through the elastic rope 94.

[0033] As shown in the figure, the bottom of the rotating wheel 92 is initially in contact with the top of the swing arm 4, and the resistance block 95 is initially completely inside the opening slot 93. When the rotating wheel 92 moves with the insertion rod 83, its bottom will rotate due to friction with the top of the swing arm 4.

[0034] As shown in the figure, the weight of the resistance block 95 is less than the elastic force of the elastic rope 94. The end of the resistance block 95 away from the elastic rope 94 is uneven. The weight of the resistance block 95 itself will not cause it to move out of the opening slot 93. When the uneven end of the rubber resistance block 95 comes into contact with the top of the swing arm 4, it will generate greater resistance.

[0035] A specific application of this embodiment is as follows: The throttle 3 can drive the swing arms 4 to rotate. When both sets of swing arms 4 rotate to a horizontal position, the contact fingers 6 will enter the inner side of the two sets of contacts 5. During the assembly and debugging of the high-voltage disconnect switch body 2, when it is necessary to prevent the two sets of swing arms 4 from separating, the plug rod 83 is slid to the right to insert it into the plug cylinder 85. The compression spring 86 is compressed. When the plug rod 83 enters the plug cylinder 85, it will press against the arc surface of the arc block 89. At this time, the arc block 89 will completely retract into the groove 87, and the telescopic spring 88 will be compressed. When the plug rod 83 continues to move so that the slot 84 coincides with the groove 87, the telescopic spring 88 rebounds, causing the arc block 89 to be locked into the slot 84. The plug rod 83 cannot leave the plug cylinder 85. At this time, the two sets of swing arms 4 cannot separate, ensuring the high voltage disconnect switch body 2 is securely connected to the high voltage disconnect switch body 2. The main body 2 of the pressure isolating switch can be safely assembled and debugged. When the two sets of pull rods 810 are pulled at the same time, causing the arc block 89 to leave the slot 84, the compression spring 86 rebounds and drives the plug rod 83 to move to the left and leave the plug cylinder 85. During the process of the compression spring 86 rebounding and driving the plug rod 83 to move to the left and leave the plug cylinder 85, the rapid movement of the plug rod 83 will drive the rotating wheel 92 to move rapidly. At this time, the bottom of the rotating wheel 92 will rotate due to friction with the top of the swing arm 4. The centrifugal force generated by the rapid rotation of the rotating wheel 92 will throw the resistance block 95 out of the opening slot 93. When the uneven end of the rubber resistance block 95 contacts the top of the swing arm 4, it will generate greater resistance, thereby controlling the speed of the plug rod 83 moving to the left and preventing the plug rod 83 from moving too fast and causing damage to the swing arm 4.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A horizontal high-voltage disconnect switch, comprising a base plate (1), characterized in that: The top of the substrate (1) is provided with two sets of disconnect switch bodies (2), and the top of each set of disconnect switch bodies (2) is fixedly connected with a handle (3). The two sets of disconnect switch bodies (2) are provided with a swing arm (4) at one end close to each other. A connecting rod (7) is provided between the two sets of swing arms (4). A protection mechanism (8) is provided on the top of the two sets of swing arms (4). The protective mechanism (8) includes a slide groove (81) and a tube (85). The slide groove (81) is located on the top of one set of swing arms (4). A slider (82) is slidably connected inside the slide groove (81). A rod (83) is fixedly connected to the top of the slider (82). A slot (84) is provided on the surface of the rod (83). The tube (85) is fixedly connected to the top of another set of swing arms (4). A compression spring (86) is provided inside the tube (85). A groove (87) is provided on the inner wall of the tube (85). A telescopic spring (88) is provided inside the groove (87). An arc-shaped block (89) is slidably connected inside the groove (87) through the telescopic spring (88). A pull rod (810) is fixedly connected to one end of the arc-shaped block (89) near the telescopic spring (88). A speed control mechanism (9) is provided on the surface of the slider (82).

2. A horizontal high-voltage disconnector according to claim 1, characterized in that, One set of the swing arms (4) has a contact (5) at one end away from the disconnector body (2), and the other set of the swing arms (4) has a contact finger (6) at one end away from the disconnector body (2).

3. A horizontal high-voltage disconnector according to claim 1, characterized in that, The opening size of the slot (84) is equal to the opening size of the groove (87), and the end of the arc-shaped block (89) away from the telescopic spring (88) protrudes out of the groove (87).

4. A horizontal high-voltage disconnector according to claim 1, characterized in that, The arc surface of the arc block (89) faces the direction of the insertion rod (83), and the depth of the groove (87) is greater than the length of the arc block (89).

5. A horizontal high-voltage disconnector according to claim 1, characterized in that, The speed control mechanism (9) includes a rotating rod (91), which is rotatably connected to a slider (82). A rotating wheel (92) is fixedly connected to one end of the rotating rod (91) away from the slider (82). An opening groove (93) is provided on the surface of the rotating wheel (92). An elastic rope (94) is provided inside the opening groove (93). A resistance block (95) is elastically connected inside the opening groove (93) through the elastic rope (94).

6. A horizontal high-voltage disconnector according to claim 5, characterized in that, The bottom of the wheel (92) is initially in contact with the top of the swing arm (4), and the resistance block (95) is initially completely inside the opening slot (93).

7. A horizontal high-voltage disconnector according to claim 5, characterized in that, The weight of the resistance block (95) is less than the elastic force of the elastic rope (94), and the end of the resistance block (95) away from the elastic rope (94) is uneven.

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