Anti-seismic power bolt

Abstract

The utility model relates to the technical field of electric power facility engineering, and discloses an anti-seismic electric power bolt which comprises two base plates, bolt holes and a rubber block, the rubber block is placed between the two base plates, a bolt column is connected between the two base plates in a sliding mode, the outer surface of the bolt column is in threaded connection with a nut, and the nut is in threaded connection with the bolt hole. A damping device is arranged on the outer surface of the bolt column; wherein the damping device comprises a rubber sleeve, a rubber ring, a groove, a conical block, a rubber base, a first spring gasket and a second spring gasket, the rubber base is placed at the screw head position of the bolt column, the groove in the rubber sleeve can deform to a certain degree under strong impact force and can absorb part of the impact force, and the bolt is prevented from falling off due to multi-time and multi-stage buffering force. And impact force generated by vibration can be absorbed and counteracted, the vibration amplitude is reduced, power equipment and facilities can be effectively protected, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of power facility engineering technology, specifically to an anti-seismic power bolt. Background Technology

[0002] In power systems, the reliability of connections of various equipment and facilities (such as transformers, switchgear, transmission towers, etc.) is directly related to the safe operation of the power grid. As a natural disaster with strong suddenness and great destructiveness, earthquakes pose a serious threat to the bolt connections of power equipment.

[0003] Existing power equipment is fixedly connected by bolts. Due to earthquakes, some substations have experienced large-scale power outages caused by the collapse of main transformers due to the breakage of equipment anchor bolts. Therefore, the bolts on the base of power equipment are particularly important, and there is an urgent need for earthquake-resistant power bolts. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-seismic power bolt, which solves the problem of poor seismic resistance and vibration reduction effects of existing bolts.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-vibration power bolt, comprising two base plates, a bolt hole and a rubber block, wherein the rubber block is placed between the two base plates, a bolt column is slidably connected between the two base plates, a nut is threadedly connected to the outer surface of the bolt column, and a shock-absorbing device is provided on the outer surface of the bolt column.

[0008] The shock absorption device includes a rubber sleeve, a rubber ring, a groove, a conical block, a rubber base, a first spring washer, and a second spring washer.

[0009] Preferably, the rubber base is placed at the screw head position of the bolt post, the first spring washer is placed above the rubber base, the second spring washer is placed above the lower plate of the base plate, and the rubber sleeve is slidably fitted onto the outer surface of the bolt post.

[0010] The rubber ring is integrally formed on the outer surface of the rubber sleeve, and the rubber ring is larger than the second spring washer.

[0011] Preferably, the conical block is integrally formed at both ends of the rubber sleeve, and the conical block is in contact with the second spring washer.

[0012] Preferably, the grooves are formed on the outer surface of the rubber sleeve, and the grooves are distributed in a ring array at equal intervals.

[0013] Preferably, the groove is rectangular, which allows the rubber sleeve to have a certain deformation capability.

[0014] Preferably, the conical block at the upper end is in contact with the corresponding second spring washer, and the first spring washer is placed on the upper plate of the base plate.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides an anti-vibration power bolt, which has the following beneficial effects:

[0017] 1. This anti-seismic power bolt features a groove on its rubber sleeve that deforms under strong impact, absorbing some of the force. Through multiple levels of buffering, the bolt absorbs and cancels the impact force generated by vibration, reducing the amplitude of the vibration and effectively protecting power equipment and facilities, thus increasing its practicality. The rubber sleeve protects the bolt post, reducing the probability of bolt post breakage. At the same time, the conical block can slide into the bolt hole, reducing direct contact between the bolt post and the bolt hole. The conical block can also counteract lateral impact force, preventing direct contact between two rigid structures that could lead to metal fatigue fracture. This structural design further reduces the probability of bolt post breakage.

[0018] 2. In this earthquake-resistant power bolt, the first impact force is received by the first spring washer and the second spring washer. At this time, the force received by the two spring washers is transferred to the rubber base and the rubber block for absorption, so that the vibration amplitude of the power facilities on the base plate where the bolt is fixed disappears, thus enhancing its practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the earthquake-resistant power bolt structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the anti-seismic power bolt rubber sleeve structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the anti-seismic power bolt groove structure of this utility model;

[0022] Figure 4 This is a plan view of the earthquake-resistant power bolt of this utility model.

[0023] In the diagram: 1. Base plate; 2. Bolt hole; 3. Bolt post; 4. Rubber base; 5. First spring washer; 6. Second spring washer; 7. Rubber sleeve; 8. Rubber ring; 9. Groove; 10. Conical block; 11. Nut; 12. Rubber block. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a new technical solution: an anti-vibration electric bolt, including two base plates 1, bolt holes 2 and rubber blocks 12, the rubber blocks 12 are placed between the two base plates 1, a bolt column 3 is slidably connected between the two base plates 1, a nut 11 is threadedly connected to the outer surface of the bolt column 3, and a shock-absorbing device is provided on the outer surface of the bolt column 3.

[0026] The shock absorption device includes a rubber sleeve 7, a rubber ring 8, a groove 9, a conical block 10, a rubber base 4, a first spring washer 5, and a second spring washer 6.

[0027] Furthermore, the rubber base 4 is placed at the screw head position of the bolt post 3, the first spring washer 5 is placed above the rubber base 4, the second spring washer 6 is placed above the lower plate of the base plate 1, and the rubber sleeve 7 is slidably sleeved on the outer surface of the bolt post 3.

[0028] Among them, the rubber ring 8 is integrally formed on the outer surface of the rubber sleeve 7, the rubber ring 8 is larger than the second spring washer 6, and the conical block 10 is integrally formed on the upper and lower ends of the rubber sleeve 7, and the conical block 10 is in contact with the second spring washer 6.

[0029] Furthermore, grooves 9 are formed on the outer surface of the rubber sleeve 7. The grooves 9 are distributed in a ring array at equal intervals. The grooves 9 are rectangular. The grooves 9 can give the rubber sleeve 7 a certain deformation capability.

[0030] The conical block 10 at the upper end is in contact with the corresponding second spring washer 6, and the first spring washer 5 is placed on the upper plate of the base plate 1.

[0031] Furthermore, when using the device, the following steps are taken in order from bottom to top: Figure 4 As shown, first, after placing the lower plate of the base plate 1, place the rubber block 12 to facilitate the placement of the upper plate of the base plate 1. At this time, align the bolt holes 2 in the base plate 1, place the two second spring washers and the rubber sleeve 7 between the two base plates 1, and then insert the rubber base 4 and the first spring washer 5 into the inside of the bolt post 3. Slide the bolt post 3 into the bolt hole 2 and pass it through. Then place the second first spring washer 5 on the upper plate of the base plate 1. At this time, start tightening the nut 11 to fix the thread.

[0032] Furthermore, when using this device, when subjected to slight vibration, the first spring washer 5 and the second spring washer 6 are the first to be subjected to the impact force. At this time, the force on the two spring washers is transmitted to the rubber base 4 and the rubber block 12 for absorption, so that the vibration amplitude of the electrical facilities on the bolt-fixed base plate 1 disappears, thus enhancing practicality.

[0033] Furthermore, when using this device, if the above-mentioned structure cannot meet the buffering force under strong vibration, some impact force is absorbed and offset by the second spring washer 6 and the conical block 10, which reduces the impact force to a certain extent. In severe cases, the second spring washer 6 will be pushed to the position of the rubber ring 8. Since the rubber ring 8 absorbs and reduces the buffering force for the second time, and the groove 9 on the rubber sleeve 7 will deform under strong impact force, it can absorb part of the impact force. Through multiple and multi-level buffering forces, the bolt can absorb and offset the impact force generated by vibration, reduce the amplitude of vibration, effectively protect the power equipment and facilities, and increase practicality. The rubber sleeve 7 can protect the bolt post 3 and reduce the probability of bolt post 3 breaking. At the same time, the conical block 10 can slide into the bolt hole 2, which can reduce the direct contact between the bolt post 3 and the bolt hole 2. The conical block 10 can offset the lateral impact force and avoid the direct contact between the two rigid structures, which would lead to metal fatigue fracture. The design of this structure further reduces the probability of bolt post 3 breaking.

[0034] Structural Description: Base Plate 1: It consists of two plates, an upper plate and a lower plate. The upper plate is fixedly connected to the power equipment for support, and the lower plate is fixedly connected to the support frame or support base.

[0035] Bolt hole 2: A hole for installing bolts.

[0036] Bolted column 3: Existing bolted structural components.

[0037] Rubber base 4: A rubber base block with cushioning.

[0038] First spring washer 5: Metal spring washer, which has a certain buffering effect.

[0039] Second spring washer 6: Metal spring washer, which has a certain buffering effect.

[0040] Rubber sleeve 7: Sliding sleeve on the outer surface of bolt post 3 for shock absorption.

[0041] Rubber ring 8: The outer ring structure of rubber sleeve 7, which has a certain degree of toughness.

[0042] Groove 9: The groove structure on the rubber sleeve 7 has a certain deformation capacity and can absorb kinetic energy.

[0043] Conical block 10: It has a certain resistance and can counteract the impact force of the second spring washer 6.

[0044] Nut 11: The structure of a bolt.

[0045] Rubber block 12: used as a support base plate 1.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seismic-resistant power bolt, comprising two base plates (1), bolt holes (2), and a rubber block (12), characterized in that: The rubber block (12) is placed between two base plates (1), and a bolt column (3) is slidably connected between the two base plates (1). A nut (11) is threaded on the outer surface of the bolt column (3), and a shock-absorbing device is provided on the outer surface of the bolt column (3). The shock absorption device includes a rubber sleeve (7), a rubber ring (8), a groove (9), a conical block (10), a rubber base (4), a first spring washer (5), and a second spring washer (6).

2. The anti-seismic power bolt according to claim 1, characterized in that: The rubber base (4) is placed at the screw head position of the bolt post (3), the first spring washer (5) is placed above the rubber base (4), the second spring washer (6) is placed above the lower plate of the base plate (1), and the rubber sleeve (7) is slidably sleeved on the outer surface of the bolt post (3). Among them, the rubber ring (8) is integrally formed on the outer surface of the rubber sleeve (7), and the rubber ring (8) is larger than the second spring washer (6).

3. The anti-seismic power bolt according to claim 1, characterized in that: The conical block (10) is integrally formed on the upper and lower ends of the rubber sleeve (7), and the conical block (10) is in contact with the second spring washer (6).

4. The anti-seismic power bolt according to claim 1, characterized in that: The grooves (9) are formed on the outer surface of the rubber sleeve (7), and the grooves (9) are distributed in a ring array at equal intervals.

5. The anti-seismic power bolt according to claim 1, characterized in that: The groove (9) is rectangular, and the groove (9) allows the rubber sleeve (7) to have a certain deformation capability.

6. The anti-seismic power bolt according to claim 1, characterized in that: The position of the cone block (10) at the upper end is in contact with the corresponding second spring washer (6), and the first spring washer (5) is placed on the upper plate of the base plate (1).

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