Adjustable cushion block of dry-type transformer

Abstract

The utility model relates to an adjustable cushion block of a dry-type transformer, which comprises a hard cushion block and a soft cushion block, the soft cushion block is connected to the upper end of the hard cushion block, the middle of the upper end of the hard cushion block is provided with a longitudinal groove penetrating through the left side and the right side of the hard cushion block, one to three sliding blocks are arranged in the longitudinal groove in a sliding mode, and clamping blocks are integrally formed at the upper ends of the sliding blocks. The two clamping blocks are symmetrically arranged left and right, a clamping opening is formed between the two clamping blocks, clamping plates are arranged on the front side and the rear side of the longitudinal groove, the clamping plates extend from the left end of the longitudinal groove to the right end of the longitudinal groove, and a fastening mechanism used for controlling the clamping plates to clamp the sliding block is arranged on the hard cushion block. The clamping plates can be clamped on the front sides and the rear sides of the sliding blocks through the fastening mechanisms, so that displacement of the sliding blocks and the clamping blocks at the upper ends of the sliding blocks is prevented, and due to the fact that the clamping plates extend from the left ends to the right ends of the longitudinal grooves, the sliding blocks can be fixed at the same time no matter how many sliding blocks are arranged in the longitudinal grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an adjustable pad for a dry-type transformer. Background Art

[0002] Insulation spacers play a vital role in dry-type transformers. They not only need to provide sufficient insulation distance, but also ensure the stability of the transformer's internal components and the reliability of its electrical performance.

[0003] In order to improve versatility and adjustability and improve heat dissipation, some existing adjustable pads for dry-type transformers usually make the protruding clamping block part into an adjustable mode. The existing patent publication number is CN211828375U, which is a dry-type transformer adjustable pad. It mainly has a longitudinal groove in the middle of the upper end of the hard pad, and 1-3 sliders are set in the longitudinal groove. The slider can slide along the longitudinal groove to adjust the position. Two left and right clamping blocks are made on the slider, and a clamping opening is formed between the left and right clamping blocks. During assembly, different numbers of insulating cylinders are provided according to the model and capacity of the transformer. Corresponding sliders can be set according to the number of insulating cylinders, and the slider is slid according to the size and position of the insulating cylinder so that the clamping opening on the slider can correspond to the insulating cylinder. It has strong versatility and ensures the pressing effect of the slider on the insulating cylinder. The longitudinal groove is opened on the hard pad, which is conducive to ventilation and has good heat dissipation effect, and can maximize the role of the heat dissipation duct. However, the slider is not effectively fixed after the adjustment is completed. In this way, after the clamp is matched with the mouth of the insulating cylinder, if the slider is shifted due to vibration or other reasons, it is easy to cause the position of the insulating cylinder to change. Therefore, to address this technical problem, the present application proposes an adjustable spacer for dry-type transformers in which the slider can be fixed after the adjustment is completed. Utility Model Content

[0004] The utility model provides an adjustable spacer for a dry-type transformer, which solves the above-mentioned problems existing in the use process of the prior art.

[0005] The technical solution of the present utility model is achieved as follows: an adjustable pad block for a dry-type transformer, comprising a hard pad block and a soft pad block, the soft pad block being connected to the upper end of the hard pad block, a longitudinal groove running through the left and right sides of the hard pad block is provided in the middle of the upper end, a slider is provided for sliding in the longitudinal groove, 1-3 sliders are provided, a clamping block is integrally formed on the upper end of the slider, two clamping blocks are provided in a left-right symmetrical manner and a clamping opening is provided between the two clamping blocks, clamping plates are provided on the front and rear sides of the longitudinal groove, the clamping plates extend from the left end to the right end of the longitudinal groove, and a fastening mechanism for controlling the clamping plates to clamp the slider is provided on the hard pad block.

[0006] Preferably, the fastening mechanism includes a screw, and a number of countersunk threaded holes penetrating into the longitudinal groove are provided on the front and rear sides of the hard pad. The number of the screws is the same as that of the countersunk threaded holes and they correspond one to one. The screw is threadedly connected in the countersunk threaded hole, and the screw is used to form a support for the splint.

[0007] Preferably, the clamping plate and the screw are both made of non-conductive materials.

[0008] Preferably, the hard pad is provided with a splint positioning groove on both the front and rear sides of the longitudinal groove, at least a portion of the splint is located in the splint positioning groove, and the screw penetrates into the splint positioning groove and abuts against the splint.

[0009] Preferably, a rear notch is provided on a side of the splint facing the screw rod, and an end of the screw rod that abuts against the splint is located in the rear notch.

[0010] Preferably, both the front and rear sides of the slider are provided with abutment openings corresponding to the clamping plates, and the abutment openings are used for the clamping plates to enter and abut therein.

[0011] Preferably, a plurality of vertical anti-slip grooves are provided on the side of the splint facing the slider.

[0012] In summary, the beneficial effects of the present invention are:

[0013] 1. After the adjustment of the slider is completed, the utility model can use the fastening mechanism to clamp the clamping plate on the front and rear sides of the slider, thereby preventing the slider and the clamping block on the upper end of the slider from displacement. Since the clamping plate extends from the left end to the right end of the longitudinal groove, no matter how many sliders are set in the longitudinal groove, they can be fixed at the same time.

[0014] 2. The clamping plate is supported by the screw, so that the clamping plate clamps the slider. The fixing effect is reliable and the structure is simple. In addition, the clamping plate and the screw are made of non-conductive materials, which avoids negative impact on the insulation isolation effect of the dry-type transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the explosion structure of the utility model.

[0018] In the figure: 1. Hard pad; 11. Longitudinal groove; 12. Countersunk threaded hole; 13. Clamp positioning groove; 2. Soft pad; 31. Slider; 32. Clamp; 33. Clamping mouth; 34. Supporting mouth; 4. Clamp; 41. Rear notch; 42. Vertical anti-slip groove; 5. Screw. DETAILED DESCRIPTION

[0019] The following is a combination of the appended examples of the present invention Figure 1-2 , clearly and completely describes 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 them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] Example:

[0021] like Figure 1 and Figure 2 As shown, the utility model discloses an adjustable pad for dry-type transformer, including a hard pad 1 and a soft pad 2, the hard pad 1 is made of epoxy resin material, and the soft pad 2 is made of silicone rubber material, wherein the soft pad 2 is as shown in FIG. Figure 1 The shown connection is connected to the upper end of the hard pad 1, and a longitudinal groove 11 is provided in the middle of the upper end of the hard pad 1, which runs through the left and right sides thereof. A slider 31 is slidably provided in the longitudinal groove 11, and 1-3 sliders 31 are provided. A clamping block 32 is integrally formed on the upper end of the slider 31. Two clamping blocks 32 are symmetrically provided on the left and right, and a clamping opening 33 is provided between the two clamping blocks 32. In the utility model, a splint 4 is provided on the front and rear sides of the longitudinal groove 11, and a fastening mechanism for controlling the splint 4 to clamp the slider 31 is provided on the hard pad 1. After the adjustment of the slider 31 is completed, the splint 4 can be clamped on the front and rear sides of the slider 31 by the fastening mechanism, thereby preventing the slider 31 and the clamping block 32 at the upper end of the slider 31 from being displaced. The splint 4 extends from the left end to the right end of the longitudinal groove 11, so no matter how many sliders 31 are provided in the longitudinal groove 11, they can be fixed at the same time.

[0022] Specifically, the fastening mechanism includes a screw 5, specifically a hexagonal screw 5, and the front and rear sides of the hard pad 1 are provided with a number of countersunk threaded holes 12 penetrating into the longitudinal groove 11. The number of screws 5 and countersunk threaded holes 12 is the same and corresponds one to one. The screw 5 is threadedly connected in the countersunk threaded hole 12. The screw 5 is used to form a support for the splint 4. The splint 4 is supported by the screw 5, so that the splint 4 clamps the slider 31. The fixing effect is reliable and the structure is simple. When the slider 31 needs to be readjusted, it is only necessary to loosen the screw 5.

[0023] In addition, the clamping plate 4 and the screw 5 are both made of non-conductive materials, such as glass fiber reinforced plastic, polytetrafluoroethylene, epoxy resin or phenolic resin, etc., to avoid negative impact on the insulation isolation effect of the dry-type transformer.

[0024] In order to effectively position the hard pad 1 and prevent it from moving up and down, the hard pad 1 is provided with clamping plate positioning grooves 13 on both the front and rear sides of the longitudinal groove 11. At least a portion of the clamping plate 4 is located in the clamping plate positioning grooves 13, and the screw 5 penetrates into the clamping plate positioning grooves 13 and abuts against the clamping plate 4. In addition, a rear notch 41 is provided on the side of the clamping plate 4 facing the screw 5, and the end of the screw 5 that abuts the clamping plate 4 is located in the rear notch 41.

[0025] Next, the slider 31 has abutment openings 34 on both the front and rear sides corresponding to the clamping plate 4. The clamping openings 34 are used for the clamping plate 4 to enter and be held therein. This structure is conducive to reliably clamping the slider 31 and can also prevent the slider 31 from shaking.

[0026] In addition, the present invention further provides a plurality of vertical anti-slip grooves 42 on one side of the clamping plate 4 facing the slider 31 to increase friction.

[0027] It should also be pointed out that the terms indicated in the present invention, such as: "front", "rear", "vertical", "horizontal", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable pad for a dry-type transformer, comprising a hard pad and a soft pad, wherein the soft pad is connected to the upper end of the hard pad, wherein a longitudinal groove is provided in the middle of the upper end of the hard pad for passing through the left and right sides thereof, wherein a slider is provided for sliding in the longitudinal groove, wherein 1-3 sliders are provided, wherein a clamping block is integrally formed on the upper end of the slider, wherein two clamping blocks are provided in a bilaterally symmetrical manner and a clamping opening is provided between the two clamping blocks, wherein the clamping block is characterized in that: Clamps are provided on both the front and rear sides of the longitudinal groove, and the clamps extend from the left end to the right end of the longitudinal groove. The hard pad is provided with a fastening mechanism for controlling the clamps to clamp the slider.

2. The adjustable spacer for a dry-type transformer according to claim 1, characterized in that: The fastening mechanism includes a screw, and a number of countersunk threaded holes penetrating into the longitudinal groove are provided on the front and rear sides of the hard pad. The number of the screws is the same as that of the countersunk threaded holes and they correspond one to one. The screw is threadedly connected in the countersunk threaded hole, and the screw is used to form a support for the splint.

3. The adjustable spacer for a dry-type transformer according to claim 2, characterized in that: The clamping plate and the screw rod are both made of non-conductive materials.

4. The adjustable spacer for a dry-type transformer according to claim 2, characterized in that: The hard pad is provided with a splint positioning groove on both the front and rear sides of the longitudinal groove, at least a part of the splint is located in the splint positioning groove, and the screw penetrates into the splint positioning groove and abuts against the splint.

5. The adjustable spacer for a dry-type transformer according to claim 4, characterized in that: A rear notch is provided on one side of the clamping plate facing the screw rod, and one end of the screw rod abutting against the clamping plate is located in the rear notch.

6. The adjustable spacer for a dry-type transformer according to claim 1, characterized in that: Both the front and rear sides of the sliding block are provided with abutment openings corresponding to the clamping plates, and the abutment openings are used for the clamping plates to enter and abut inside.

7. The adjustable spacer for a dry-type transformer according to claim 1, characterized in that: A plurality of vertical anti-skid grooves are provided on one side of the splint facing the slider.

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