Four-three wiring device of lightning impulse generator

Abstract

The utility model belongs to the technical field of lightning impulse generators, and discloses a four-three wiring device of a lightning impulse generator. Comprising a base, a supporting rod is installed at the top of the base, a bottom plate is installed at the top of the supporting rod, an insulating cylinder is installed at the top of the bottom plate through a pressing and clamping mechanism, the pressing and clamping mechanism comprises a sleeve, the sleeve is installed at the top of the bottom plate, and through holes are formed in the outer side of the sleeve in an array mode; the upper end of the through hole is rotatably provided with a rotating rod, and the middle end of the rotating rod is fixedly sleeved with a pressing plate. According to the utility model, the bottom plate and the insulating cylinder are connected by adopting the pressing and clamping mechanism, the insulating cylinder is fixed by sliding the slip ring, the slip ring extrudes the pressing plate and the limiting block, and the slip ring is limited and fixed through the positioning rod, the clamping block, the connecting rod, the baffle plate and the limiting spring, so that the insulating cylinder can be conveniently and quickly assembled; the occupied space can be reduced, and the assembling stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning impulse generators, and more specifically, to a four-three wiring device for a lightning impulse generator. Background Art

[0002] A lightning wave impulse current generator is an impulse current generator that generates a simulated lightning current waveform. Since the waveform, maximum current, functional combination and test product types of the current generator are different, the equipment structure is different. Generally, the small one is a desktop instrument, the medium one is a cabinet type, and the large one is a split type. The high-voltage generator is usually used in conjunction with a voltage multiplier. The voltage multiplier is specially used to detect the electrical insulation strength and leakage current of power devices. It is mainly suitable for power maintenance departments, industrial and mining, metallurgical, steel and other enterprise power departments to conduct DC withstand voltage tests on high-voltage electrical equipment such as zinc oxide lightning arresters, power cables, transformers, generators, and high-voltage switches.

[0003] During use, the existing voltage multiplier cylinder is usually fixed by welding or bolts, which is not easy to assemble and takes up a large space. In actual power tests, the fixed welding method takes up a large space and is inconvenient to carry, and the bolt fixing method is not convenient to assemble. Loose bolts can easily cause the voltage multiplier cylinder to tip over during the test, resulting in a short circuit or short circuit in the wires, posing certain safety hazards. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model proposes a four-three wiring device for a lightning impulse generator.

[0005] To achieve the above object, the utility model provides the following technical solution: a lightning impulse generator four-three wiring device, comprising a base, a support rod is installed on the top of the base, a bottom plate is installed on the top of the support rod, and an insulating cylinder is installed on the top of the bottom plate through a pressing and fixing mechanism;

[0006] The pressing and locking mechanism includes a sleeve, which is installed on the top of the base plate, and a through hole array is opened on the outer side of the sleeve, a rotating rod is rotatably installed on the upper end of the through hole, and a pressing plate is fixedly sleeved on the middle end of the rotating rod, and the outer side of the pressing plate is elastically connected to the through hole through a torsion spring, and the torsion spring is rotatably sleeved on both sides of the rotating rod, and a slip ring is slidably sleeved on the outer side of the sleeve, and a positioning rod is symmetrically installed on the bottom of the slip ring, and a card block is slidably installed inside the base plate, a connecting rod is installed at one end of the card block, a baffle is installed at one end of the connecting rod, and a limit spring is sleeved on the outer side of the connecting rod.

[0007] Furthermore, a retaining ring is installed on the top of the sleeve, the retaining ring and the inner side of the sleeve are both slidably connected to the insulating tube, and the bottom of the retaining ring is in sliding contact with the bottom of the slip ring.

[0008] Furthermore, the outer side of the pressing plate is in sliding contact with the inner side of the slip ring, a limiting block is installed on the inner side of the pressing plate, and a limiting groove matching the size of the limiting block is opened on the outer side of the insulating cylinder.

[0009] Furthermore, a positioning hole slidably connected to the positioning rod is provided on the top of the base plate, a slope is provided on the other end of the block, the slope slidably contacts the bottom of the positioning rod, and a slot matching the size of the other end of the block is provided on the outside of the positioning rod.

[0010] Furthermore, a sliding groove slidably connected to the block is opened inside the bottom plate, the block and the sliding groove are elastically connected by a limit spring, a connecting hole slidably connected to the connecting rod is opened on the outside of the bottom plate, and the baffle is located on the outside of the bottom plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the base plate and the insulating cylinder are connected by a pressing and fixing mechanism, and the insulating cylinder is fixed by a sliding slip ring, which squeezes the pressing plate and the limit block. The slip ring is fixed by a positioning rod, a clamping block, a connecting rod, a baffle and a limit spring, which facilitates the rapid assembly of the insulating cylinder. Compared with fixed welding or bolt fixing, it can reduce the occupied space and increase the stability of the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure on the bottom plate of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the bottom plate of the utility model;

[0015] Figure 4 For the utility model Figure 3 A magnified view of the structure at center;

[0016] Figure 5 It is a schematic diagram of the use effect of the pressing and fastening mechanism of the utility model.

[0017] In the figure:

[0018] 1. Base; 2. Support rod; 3. Bottom plate; 4. Insulating tube; 5. Sleeve; 501. Rotating rod; 6. Retaining ring; 7. Slip ring; 8. Positioning rod; 9. Block; 10. Connecting rod; 11. Baffle; 12. Limit spring; 13. Pressing plate; 1301. Torsion spring; 14. Limit block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides the following technical solutions: a four-three wiring device for a lightning impulse generator, comprising a base 1, four rollers are symmetrically installed at the bottom of the base 1, which is convenient for moving the whole when in use, a support rod 2 is installed on the top of the base 1, there are four support rods 2, the four support rods 2 are symmetrical to each other, a bottom plate 3 is installed on the top of the support rod 2, an insulating cylinder 4 is installed on the top of the bottom plate 3 by a pressing and fixing mechanism, and the installation and fixation of the insulating cylinder 4 is achieved by the pressing and fixing mechanism.

[0021] The pressing and clamping mechanism includes a sleeve 5, which is installed on the top of the base plate 3. A through hole is formed in an array on the outer side of the sleeve 5. A rotating rod 501 is rotatably installed on the upper end of the through hole. A pressing plate 13 is fixedly sleeved on the middle end of the rotating rod 501. The outer side of the pressing plate 13 is in sliding contact with the inner side of the slip ring 7. A limiting block 14 is installed on the inner side of the pressing plate 13. A limiting groove matching the size of the limiting block 14 is formed on the outer side of the insulating cylinder 4. The contact area with the insulating cylinder 4 is increased by the limiting groove to realize the limiting fixation of the insulating cylinder 4. The outer side of the pressing plate 13 is elastically connected to the through hole by a torsion spring 1301. The torsion spring 1301 is used to limit the rotation angle of the pressing plate 13. The torsion spring 1301 is rotatably sleeved on both sides of the rotating rod 501. When the torsion spring 1301 is not subjected to force, the pressing plate 13 is tilted in an eight-shaped shape. At this time, the slip ring 7 is located at the top of the pressing plate 13. The outer sliding sleeve of the sleeve 5 is provided with the slip ring 7. The top of the sleeve 5 is provided with a retaining ring 6. The retaining ring 6 and the inner side of the sleeve 5 are both slidably connected with the insulating tube 4. The bottom of the retaining ring 6 is in sliding contact with the bottom of the slip ring 7. The retaining ring 6 plays the role of limiting the slip ring 7 to prevent the slip ring 7 from slipping off the outer side of the sleeve 5. A positioning rod 8 is symmetrically installed at the bottom, a card block 9 is slidably installed inside the bottom plate 3, a positioning hole slidably connected to the positioning rod 8 is opened at the top of the bottom plate 3, and an inclined surface is opened at the other end of the card block 9, which slides against the bottom of the positioning rod 8. The inclined surface reduces the friction resistance when the card block 9 contacts the positioning rod 8, so that the linear sliding of the card block 9 is achieved when the positioning rod 8 slides downward. A card groove matching the size of the other end of the card block 9 is opened on the outside of the positioning rod 8. The card groove serves to increase the contact area between the positioning rod 8 and the card block 9. A connecting rod 10 is installed at one end of the card block 9. A baffle 11 is installed at one end of 10, and a limit spring 12 is sleeved on the outer side of the connecting rod 10. A sliding groove slidably connected to the block 9 is opened inside the bottom plate 3, and the block 9 and the sliding groove are elastically connected by the limit spring 12. The sliding position of the block 9 is limited by the limit spring 12. A connecting hole slidably connected to the connecting rod 10 is opened on the outer side of the bottom plate 3, and the sliding groove is connected with the positioning hole and the connecting hole. The baffle 11 is located on the outer side of the bottom plate 3. The baffle 11 is larger than the diameter of the connecting hole, and plays the role of limiting the connecting rod 10, which is convenient for the user to move the block 9 through the baffle 11 and the connecting rod 10.

[0022] Working principle: during assembly, first place the insulating cylinder 4 on the inner side of the sleeve 5 and the baffle ring 6, and then slide the slip ring 7 downward. The slip ring 7 squeezes the pressing plate 13, and the pressing plate 13 drives the limit block 14 and the rotating rod 501 to rotate. At the same time, the pressing plate 13 squeezes the torsion spring 1301, and the slip ring 7 drives the positioning rod 8 to slide in the positioning hole at the top of the bottom plate 3. The positioning rod 8 slides in contact with the inclined surface of the other end of the block 9, driving the block 9 to slide to the outside away from the insulating cylinder 4. The block 9 drives the connecting rod 10 and the baffle 11 to slide and squeeze the limit spring 12. The positioning rod 8 continues to slide downward, and the other end of the block 9 slides with the outside of the positioning rod 8. When the block 9 slides into the slot outside the positioning rod 8, the thrust of the limit spring 12 itself drives the block 9 to be stuck in the slot outside the positioning rod 8 and fixed, and the limit block 14 rotates to the limit slot outside the insulating cylinder 4, thereby realizing the installation and fixation of the insulating cylinder 4.

[0023] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0024] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A lightning impulse generator four-three wiring device, comprising a base (1), characterized in that: A support rod (2) is installed on the top of the base (1), a bottom plate (3) is installed on the top of the support rod (2), and an insulating cylinder (4) is installed on the top of the bottom plate (3) via a pressing and clamping mechanism; The pressing and locking mechanism comprises a sleeve (5), which is mounted on the top of the base plate (3). An array of through holes is provided on the outer side of the sleeve (5). A rotating rod (501) is rotatably mounted on the upper end of the through hole. A pressing plate (13) is fixedly sleeved on the middle end of the rotating rod (501). The outer side of the pressing plate (13) is elastically connected to the through hole via a torsion spring (1301). The torsion spring (1301) is rotatably sleeved on both sides of the rotating rod (501). A slip ring (7) is slidably sleeved on the outer side of the sleeve (5). Positioning rods (8) are symmetrically mounted on the bottom of the slip ring (7). A clamping block (9) is slidably mounted inside the base plate (3). A connecting rod (10) is mounted on one end of the clamping block (9). A baffle (11) is mounted on one end of the connecting rod (10). A limit spring (12) is sleeved on the outer side of the connecting rod (10).

2. A lightning impulse generator four-three wiring device according to claim 1, characterized in that: A retaining ring (6) is installed on the top of the sleeve (5), the retaining ring (6) and the inner side of the sleeve (5) are both slidably connected to the insulating tube (4), and the bottom of the retaining ring (6) is in sliding contact with the bottom of the slip ring (7).

3. A lightning impulse generator four-three wiring device according to claim 1, characterized in that: The outer side of the pressing plate (13) is in sliding contact with the inner side of the slip ring (7), a limit block (14) is installed on the inner side of the pressing plate (13), and a limit groove matching the size of the limit block (14) is provided on the outer side of the insulating cylinder (4).

4. A lightning impulse generator four-to-three wiring device according to claim 1, characterized in that: The top of the bottom plate (3) is provided with a positioning hole slidably connected to the positioning rod (8); the other end of the clamping block (9) is provided with an inclined surface, the inclined surface slidably contacts the bottom of the positioning rod (8); the outer side of the positioning rod (8) is provided with a clamping groove matched with the size of the other end of the clamping block (9).

5. A lightning impulse generator four-to-three wiring device according to claim 1, characterized in that: A sliding groove slidably connected to the clamping block (9) is provided inside the bottom plate (3); the clamping block (9) and the sliding groove are elastically connected via a limit spring (12); a connecting hole slidably connected to the connecting rod (10) is provided on the outside of the bottom plate (3); and the baffle (11) is located on the outside of the bottom plate (3).

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