Lightning protection device for electrical equipment

Abstract

The utility model discloses a lightning protection device for electrical equipment, which comprises a sleeve rod, a sliding rod used for conveniently fixing a lightning arrester is mounted in the sleeve rod in a matched manner, the lightning arrester is positioned at the top end of the sliding rod, a threaded rod is connected in the sliding rod, and the threaded rod is fixedly connected with the sleeve rod. A fixing plate used for fixing the threaded rod is installed in the sleeve rod and located below the sliding rod. The beneficial effects are that on one hand, through the cooperation design of the hand wheel, the first gear, the second gear and the threaded rod, the lightning protection device used for the electrical equipment can realize automatic lifting of the lightning arrester in a hand-cranking manner when in use, thereby avoiding the increase of maintenance cost caused by motor lifting, enabling the practicability of the device to be better, and improving the reliability of the device; and on the other hand, the supporting frames are arranged on the periphery of the sleeve rod, and the telescopic supporting arms are fixed between the supporting frames and the sliding rods, so that the stability of the lightning protection device for the electrical equipment is greatly improved during use, and the device can be conveniently and durably used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection devices, in particular to a lightning protection device for electrical equipment. Background Art

[0002] In recent years, with the rapid development of electrical equipment, electrical equipment has been used more and more widely in all aspects of daily life, but electrical equipment will also be subject to problems in daily use. For example, once a lightning wave invades, the equipment damage is generally huge, and some even make the entire electrical equipment scrapped, causing irreparable losses or even casualties. Lightning is a natural phenomenon that can release huge energy and has extremely strong destructive power. When the lightning discharge path does not pass through the lightning protection device, the strong transient electromagnetic field generated during the discharge process induces a strong electromagnetic pulse in the nearby conductor, which is called induced lightning, which will damage the equipment in the circuit or the components in the equipment.

[0003] In order to protect electrical equipment, a Chinese patent with patent number CN202221750894.2 discloses a lightning protection device for electrical equipment, including an outer wall column body, a base is fixedly installed on the bottom surface of the outer wall column body, a motor is fixedly installed on the top of the base, a drive shaft is fixedly installed on the top of the motor, an inner wall column is meshed on the outer surface of the drive shaft, and a lightning arrester is fixedly installed on the top of the inner wall column.

[0004] Although the lightning protection device for electrical equipment described in the above patent can realize the automatic lifting and lowering of the lightning rod when in use, and improve the stability of the lightning protection device when in use by adding telescopic support arms on both sides of the outer wall column body, and also facilitate the rapid conduction of lightning to the ground, on the one hand, since the outer wall column body on the lightning protection device for electrical equipment of the above structure has heat dissipation holes opened opposite the motor, when the device is used in thunderstorm weather, it is easy for external moisture to enter the device through the heat dissipation holes, thereby causing damage to the motor, increasing the later inspection and maintenance costs of the device, and on the other hand, the outer wall column body is only supported and protected by arranging support arms on both sides, so that the stability of the other two sides outside the outer wall column body and the inner wall column after rising is still poor. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is to provide a lightning protection device for electrical equipment that can conveniently adjust the height of the lightning arrester by hand-cranking to reduce the inspection and maintenance cost of the device, and can fully support the sliding rod and the sleeve rod, thereby improving the stability of the device when in use.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: the utility model proposes a lightning protection device for electrical equipment, including a sleeve rod, a sliding rod for conveniently fixing a lightning rod is installed in the sleeve rod, and the lightning rod is located at the top of the sliding rod, a threaded rod is connected in the sliding rod, a fixing plate for fixing the threaded rod is installed in the sleeve rod below the sliding rod, a gear 2 is installed on the threaded rod at the lower side of the fixing plate, a gear 1 is meshed with a side of the upper end of the gear 2, one end of the wheel axle of the gear 1 is connected to a handwheel arranged on the outside of the sleeve rod, a π-shaped support frame is fixed on each side of the sleeve rod, and a telescopic support arm is connected between the top of the support frame and the outer periphery of the top of the sliding rod.

[0009] Furthermore, the sleeve rod and the bottom end of the support frame are commonly connected to a base, a lightning protection net is arranged on the lower side of the base, and a grounding lead is connected between each support frame and the lightning protection net.

[0010] By adopting the above technical solution, the grounding lead and the lightning protection net are used to quickly guide lightning to the ground, which can effectively avoid damage to the device caused by untimely lightning guidance to the ground.

[0011] Furthermore, the sliding rod is threadedly connected to the threaded rod, and the sliding rod is slidably connected to the sleeve rod.

[0012] By adopting the above technical solution, when the threaded rod is rotated and the sliding rod is guided by the sleeve rod, the sliding rod can be conveniently lifted and lowered, thereby realizing convenient lifting and lowering adjustment of the lightning receptor.

[0013] Furthermore, the threaded rod passes through the fixed plate and is rotatably connected to the fixed plate, and the bottom end of the threaded rod is rotatably connected to the sliding rod.

[0014] By adopting the above technical solution, reliable fixation and convenient rotation of the threaded rod relative to the sleeve rod can be ensured.

[0015] Furthermore, the gear 2 is welded to the threaded rod, and both the gear 2 and the gear 1 are bevel gears.

[0016] By adopting the above technical solution, the gear 1 and the gear 2 are mainly used to transmit the force of the hand wheel when it rotates to the threaded rod, so as to realize the convenient rotation of the threaded rod.

[0017] Furthermore, the hand wheel is welded to the axle of the gear one, and the axle of the gear one passes through the sleeve rod and is rotatably connected to the sleeve rod.

[0018] By adopting the above technical solution, reliable installation and fixation between the gear 1 and the sleeve rod can be ensured.

[0019] Furthermore, the support frame is welded to the base and the sleeve rod, and the telescopic support arm is hinged to the slide rod and the support frame.

[0020] By adopting the above technical solution, the cooperation between the support frame and the telescopic support arm can effectively increase the stability of the sleeve rod and the slide rod, thereby improving the overall stability of the device.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In order to solve the problem that the existing lightning protection device for electrical equipment can realize the automatic lifting and lowering of the lightning receptor when in use, and improve the stability of the lightning protection device when in use by adding telescopic support arms on both sides of the outer wall column body, and also facilitate the rapid grounding of lightning, but on the one hand, since the outer wall column body of the lightning protection device for electrical equipment with the above structure has heat dissipation holes opened at the motor, when the device is used in thunderstorm weather, it is easy for external moisture to enter the device through the heat dissipation holes, thereby causing damage to the motor, increasing the later inspection and maintenance cost of the device, and on the other hand, only by arranging support arms on both sides, the outer wall column body is repaired. The support and protection make the stability of the other two sides outside the outer wall column body and the inner wall column still poor after lifting. On the one hand, the utility model uses the coordinated design of the hand wheel, gear one, gear two and threaded rod to enable the lightning protection device for electrical equipment to realize the automatic lifting and lowering of the lightning arrester by hand-cranking when in use, avoiding the increase in maintenance costs caused by the use of motor lifting, making the device more practical. On the other hand, by arranging support frames around the outside of the sleeve rod and fixing the telescopic support arm between the support frame and the slide rod, the stability of the lightning protection device for electrical equipment when in use is greatly improved, which is convenient for long-term and durable use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a lightning protection device for electrical equipment described in the utility model;

[0025] Figure 2 The utility model is a main cross-sectional view of a sleeve rod and a slide rod in a lightning protection device for electrical equipment.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Telescopic support arm; 2. Grounding lead; 3. Base; 4. Lightning protection net; 5. Sleeve rod; 6. Support frame; 7. Hand wheel; 8. Sliding rod; 9. Lightning arrester; 10. Threaded rod; 11. Gear 2; 12. Gear 1; 13. Fixed plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] like Figure 1-Figure 2 As shown, a lightning protection device for electrical equipment in this embodiment includes a sleeve rod 5, a slide rod 8 for conveniently fixing a lightning receptor 9 is installed in the sleeve rod 5, and the lightning receptor 9 is located at the top of the slide rod 8, a threaded rod 10 is connected to the slide rod 8, a fixing plate 13 for fixing the threaded rod 10 is installed in the sleeve rod 5 below the slide rod 8, a gear 2 11 is installed on the threaded rod 10 at the lower side of the fixing plate 13, a gear 12 is meshed with a gear 12 on one side of the upper end of the gear 11, one end of the wheel shaft of the gear 12 is connected to a hand wheel 7 arranged on the outside of the sleeve rod 5, and the hand wheel 7 can be turned to realize the rotation of the threaded rod 10 under the action of the gear 12 and the gear 11, and after the threaded rod 10 is rotated, the slide rod 8 can be conveniently raised and lowered under the thread transmission and the guiding action of the sleeve rod 5. Thereby, convenient lifting and lowering adjustment of the lightning arrester 9 is achieved. A π-shaped support frame 6 is fixed on the four sides of the sleeve rod 5. A telescopic support arm 1 is connected between the top of the support frame 6 and the outer periphery of the top of the sliding rod 8. The sleeve rod 5 and the bottom of the support frame 6 are commonly connected to a base 3. The support frame 6 is welded to the base 3 and the sleeve rod 5. The telescopic support arm 1 is hinged to the sliding rod 8 and the support frame 6. The cooperation between the support frame 6 and the telescopic support arm 1 can effectively increase the stability of the sleeve rod 5 and the sliding rod 8, thereby improving the overall stability of the device. A lightning protection net 4 is arranged on the lower side of the base 3, and a grounding lead 2 is connected between each support frame 6 and the lightning protection net 4. The grounding lead 2 and the lightning protection net 4 are used to quickly conduct lightning to the ground, which can effectively avoid damage to the device caused by untimely lightning conduction to the ground.

[0030] like Figure 1-Figure 2 As shown, in the present embodiment, the slide rod 8 is threadedly connected to the threaded rod 10, the slide rod 8 is slidably connected to the sleeve rod 5, the threaded rod 10 passes through the fixed plate 13 and is rotatably connected to the fixed plate 13, and the bottom end of the threaded rod 10 is rotatably connected to the slide rod 8, which can ensure that the threaded rod 10 is reliably fixed and conveniently rotated relative to the sleeve rod 5, the gear 2 11 is welded to the threaded rod 10, and the gear 2 11 and the gear 1 12 are both bevel gears, the gear 1 12 and the gear 2 11 are mainly used to transmit the force of the hand wheel 7 during rotation to the threaded rod 10, so as to realize the convenient rotation of the threaded rod 10, the hand wheel 7 is welded to the axle of the gear 1 12, and the axle of the gear 1 12 passes through the sleeve rod 5 and is rotatably connected to the sleeve rod 5, which can ensure the reliable installation and fixation between the gear 12 and the sleeve rod 5.

[0031] The specific implementation process of this embodiment is as follows: When using, first install the device as follows: Figure 1 The method shown is fixed in the corresponding position, and the slide bar 8 is extended from the sleeve rod 5 by turning the hand wheel 7, so as to realize the convenient adjustment of the height of the lightning rod 9. After the height of the lightning rod 9 is adjusted, the lightning protection device for the electrical equipment can be put into use. During use, through the coordinated design of the hand wheel 7, gear one 12, gear two 11 and threaded rod 10, the lightning protection device for the electrical equipment can realize the automatic lifting and lowering of the lightning rod 9 by hand-cranking when in use, avoiding the increase in maintenance costs caused by the use of motor lifting, making the device more practical. At the same time, by arranging the support frames 6 around the sleeve rod 5 and fixing the telescopic support arm 1 between the support frame 6 and the slide bar 8, the stability of the lightning protection device for the electrical equipment when in use is greatly improved, which is convenient for long-term and durable use of the device.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightning protection device for electrical equipment, characterized in that: The invention comprises a sleeve rod (5), wherein a slide rod (8) for conveniently fixing a lightning receptor (9) is installed in the sleeve rod (5), and the lightning receptor (9) is located at the top of the slide rod (8). A threaded rod (10) is connected in the slide rod (8). A fixing plate (13) for fixing the threaded rod (10) is installed in the sleeve rod (5) below the slide rod (8). A gear 2 (11) is installed on the threaded rod (10) below the fixing plate (13). A gear 1 (12) is meshed on one side of the upper end of the gear 2 (11). One end of the wheel shaft of the gear 1 (12) is connected to a hand wheel (7) arranged outside the sleeve rod (5). A π-shaped support frame (6) is fixed on the outer periphery of the sleeve rod (5). A telescopic support arm (1) is connected between the top of the support frame (6) and the outer periphery of the top of the slide rod (8).

2. A lightning protection device for electrical equipment according to claim 1, characterized in that: The sleeve rod (5) and the bottom ends of the support frame (6) are commonly connected to a base (3), a lightning protection net (4) is arranged on the lower side of the base (3), and a grounding lead (2) is connected between each support frame (6) and the lightning protection net (4).

3. The lightning protection device for electrical equipment according to claim 1, characterized in that: The sliding rod (8) is threadedly connected to the threaded rod (10), and the sliding rod (8) is slidably connected to the sleeve rod (5).

4. The lightning protection device for electrical equipment according to claim 1, characterized in that: The threaded rod (10) passes through the fixed plate (13) and is rotatably connected to the fixed plate (13); the bottom end of the threaded rod (10) is rotatably connected to the sliding rod (8).

5. The lightning protection device for electrical equipment according to claim 1, characterized in that: The second gear (11) is welded to the threaded rod (10), and the second gear (11) and the first gear (12) are both bevel gears.

6. The lightning protection device for electrical equipment according to claim 1, characterized in that: The hand wheel (7) is welded to the axle of the gear one (12), and the axle of the gear one (12) passes through the sleeve rod (5) and is rotatably connected to the sleeve rod (5).

7. The lightning protection device for electrical equipment according to claim 2, characterized in that: The support frame (6) is welded to the base (3) and the sleeve rod (5), and the telescopic support arm (1) is hinged to the slide rod (8) and the support frame (6).

Images