Composite outer jacket fixed gap metal oxide surge arrester

Abstract

This invention discloses a composite-jacketed fixed-gap metal oxide surge arrester, relating to the field of surge arrester technology. It includes an arrester body, with a mounting base fixed to its bottom. A first electrode and a second electrode are fixed to the outer wall of the arrester body. A groove is formed on the mounting base, and an adjustment mechanism is disposed within the groove. A support block is fixed to the top of the mounting base, and a rotating shaft is rotatably mounted on the front of the support block. A connecting block is fixed to the outer wall of the rotating shaft. After the arrester is installed, a reverse knob can be turned to rotate a bidirectional threaded rod, causing the two sets of threaded sleeves to move away from each other. This, in turn, causes the rack to move away from each other. Through the cooperation of gears, a rotating rod, a driving wheel, a transmission belt, a driven wheel, a rotating shaft, and a connecting block, two sets of protective covers can be used to enclose the arrester body, thereby protecting the arrester body.

Description

Technical Field

[0001] This invention relates to the field of surge arrester technology, and in particular to a composite jacket fixed gap metal oxide surge arrester. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from high transient overvoltages and to limit the duration and amplitude of follow current. This term includes any external clearance necessary for the normal functioning of the electrical equipment during operation and installation, regardless of whether it is part of the overall system. Surge arresters are classified into many types, including metal oxide surge arresters and gapless line-type metal oxide surge arresters.

[0003] Existing composite jacket fixed gap metal oxide surge arresters are generally exposed to the outside and therefore lack protective functions. This may lead to short circuit faults due to foreign objects getting stuck on the arrester or small animals accidentally touching it. Moreover, the arrester is exposed to the air for a long time, and the moisture in the air will accelerate the aging of the arrester and reduce its service life. Summary of the Invention

[0004] The main objective of this invention is to provide a composite jacket fixed gap metal oxide surge arrester, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this invention proposes a composite jacketed fixed-gap metal oxide surge arrester, comprising an arrester body, a mounting base fixed to the bottom of the arrester body, a first electrode and a second electrode fixed to the outer wall of the arrester body, a groove formed on the mounting base, an adjustment mechanism disposed within the groove, a support block fixed to the top of the mounting base, a rotating shaft rotatably mounted on the front of the support block, a connecting block fixed to the outer wall of the rotating shaft, a protective cover fixed to the top of the connecting block, heat dissipation holes formed on the protective cover, and a control mechanism disposed within the protective cover. The adjustment mechanism includes:

[0006] A bidirectional threaded rod, one end of which is rotatably mounted on the inner wall of a groove, and the other end of which is fixed with a knob;

[0007] A threaded sleeve is threadedly connected to the outer wall of a bidirectional threaded rod, and the bottom of the threaded sleeve is slidably mounted on the inner wall of a groove, the groove being formed on the inner wall of a recess.

[0008] A rack, which is fixed to the top of a threaded sleeve.

[0009] Optionally, the rack and gear mesh with each other, and a rotating rod is fixed to the inner wall of the gear, which is rotatably mounted on the inner wall of the groove.

[0010] Optionally, a drive wheel is fixed to the outer wall of the rotating rod, a transmission belt is wound around the outer wall of the drive wheel, the side of the transmission belt away from the drive wheel is wound around the driven wheel, and the inner wall of the driven wheel is fixed to the outer wall of the rotating shaft.

[0011] Optionally, a rotating column extends through the side wall of the protective cover, a fan blade is fixed to the outer wall of the rotating column, and a first bevel gear is fixed to the end of the rotating column away from the fan blade.

[0012] Optionally, the control mechanism includes a second bevel gear that meshes with a first bevel gear. A rotating rod is fixed to the inner wall of the second bevel gear, and the rotating rod passes through a support plate, with the rotating rod rotatably connected to the support plate at the point where they pass through.

[0013] Optionally, a disc is fixed to the bottom of the rotating rod, and a movable rod is hinged to the disc. The end of the movable rod away from the support plate is hinged to a slider, and the slider is slidably mounted on the inner wall of the protective cover.

[0014] Optionally, a connecting rod is fixed to the side wall of the slider, a moving block is fixed to the right end of the connecting rod, a transmission plate is fixed to the right side of the moving block, and a through hole is provided on the transmission plate.

[0015] Optionally, a rotating shaft is rotatably mounted on the inner wall of the protective cover, and a guide plate is fixed on the outer wall of the rotating shaft.

[0016] Optionally, the protective cover is provided in two sets, and the two sets of protective covers are arranged in a mirror image with respect to the mounting base.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) When the composite jacket fixed gap metal oxide surge arrester is installed, the knob can be reversed to drive the bidirectional threaded rod to rotate, so that the two sets of threaded sleeves move away from each other, and the rack can move away from each other. Through the cooperation of gears, rotating rods, driving wheels, transmission belts, driven wheels, rotating shafts and connecting blocks, the two sets of protective covers can cover the surge arrester body, thereby protecting the surge arrester body.

[0019] (2) The composite jacket fixed gap metal oxide surge arrester can achieve heat dissipation by setting heat dissipation holes. When the wind blows the fan blades to rotate, the guide plate will swing due to the cooperation of the rotating column, the first bevel gear and the control mechanism, which can increase the air flow and make the surge arrester body heat dissipation effect better.

[0020] (3) The composite jacket fixed gap metal oxide surge arrester, by arranging the first and second electrodes at an angle, effectively avoids the problem of water column or ice column forming between the discharge electrodes of the traditional external gap surge arrester in rainy and snowy weather conditions, which causes a serious drop in the power frequency withstand voltage of the discharge gap, thus ensuring the stability of the power frequency withstand voltage of the discharge gap and extending the service life of the surge arrester body. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall device of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall front view of the structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 An enlarged schematic diagram of structure A;

[0025] Figure 4 For the present invention Figure 2 An enlarged schematic diagram of the B structure;

[0026] Figure 5 This is a bottom view schematic diagram of the disk, movable rod, and connecting rod of the present invention.

[0027] Explanation of reference numerals in the attached diagram: 1. Surge arrester body; 2. Mounting base; 3. First electrode; 4. Second electrode; 5. Groove; 6. Adjustment mechanism; 61. Bidirectional threaded rod; 62. Knob; 63. Threaded sleeve; 64. Slide groove; 65. Rack; 7. Gear; 8. Rotating rod; 9. Driving wheel; 10. Transmission belt; 11. Driven wheel; 12. Rotating shaft; 13. Support block; 14. Connecting block; 15. Protective cover; 16. Heat dissipation hole; 17. Rotating column; 18. Fan blade; 19. First bevel gear; 20. Control mechanism; 201. Support plate; 202. Rotating rod; 203. Second bevel gear; 204. Disc; 205. Movable rod; 206. Slider; 207. Connecting rod; 208. Moving block; 209. Transmission plate; 21. Through hole; 22. Rotating shaft; 23. Guide plate.

[0028] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0032] Reference Figures 1 to 5 This invention proposes a composite jacketed fixed gap metal oxide surge arrester, including an arrester body 1. A mounting base 2 is fixed to the bottom of the arrester body 1, which facilitates the installation of the arrester body 1. A first electrode 3 and a second electrode 4 are fixed to the side wall of the arrester body 1. The first electrode 3 and the second electrode 4 are arranged at an angle, which effectively avoids the problem of water column or ice column formation between the discharge electrodes of traditional external gap surge arresters in rainy or snowy weather, which can cause a short circuit and a serious drop in the power frequency withstand voltage of the discharge gap. This ensures the stability of the power frequency withstand voltage of the discharge gap, extends the service life of the arrester body 1, and improves the safety and reliability of the transmission line operation. A groove 5 is provided on the mounting base 2, and an adjustment mechanism 6 is provided in the groove 5.

[0033] The aforementioned adjusting mechanism 6 includes a bidirectional threaded rod 61. One end of the bidirectional threaded rod 61 is rotatably mounted on the inner wall of the groove 5, and the other end of the bidirectional threaded rod 61 is fixed with a knob 62. A threaded sleeve 63 is threadedly connected to the outer wall of the bidirectional threaded rod 61. The bottom of the threaded sleeve 63 is slidably mounted on the inner wall of a slide groove 64, which is formed in the inner wall of the groove 5. A rack 65 is fixed to the top of the threaded sleeve 63. When the knob 62 is rotated, the bidirectional threaded rod 61 can be rotated, allowing the two sets of threaded sleeves 63 to move on the bidirectional threaded rod 61, thereby allowing the rack 65 to move. The rack 65 meshes with a gear 7, and the inner wall of the gear 7 has a rotating rod 8. The rotating rod 8 is rotatably mounted on the inner wall of the groove 5, and the outer wall of the rotating rod 8 is fixed with a drive wheel 9. When protection of the surge arrester body 1 is required, the knob 62 can be reversed to move the two sets of threaded sleeves 63 away from each other, causing the rack 65 to move away from the surge arrester body 1, so that the rack 65 moves on the gear 7, causing the gear 7 to drive the rotating rod 8 to rotate clockwise, which in turn drives the drive wheel 9 to rotate clockwise. The drive wheel 9 is wound with a transmission belt 10, and the side of the transmission belt 10 away from the drive wheel 9 is wound around the driven wheel 11. So when the drive wheel 9 rotates, the driven wheel 11 can rotate clockwise through the transmission belt 10. The inner wall of the driven wheel 11 is fixed with a rotating shaft 12, which is rotatably mounted on the support. On block 13, the support block 13 is fixed to the top of the mounting base 2, which allows the driven wheel 11 to drive the rotating shaft 12 to rotate clockwise. A connecting block 14 is fixed to the outer wall of the rotating shaft 12, and a protective cover 15 is fixed to the side of the connecting block 14 away from the support block 13. This causes the rotating shaft 12 to drive the connecting block 14 to rotate clockwise, and the connecting block 14 to drive the protective cover 15 to rotate. Since there are two sets of protective covers 15, and the two sets of protective covers 15 are symmetrically arranged about the center line of the vertical direction of the mounting base 2, the two sets of protective covers 15 can cover the surge arrester body 1 for protection, preventing the surge arrester body 1 from being exposed to the outside. This is because foreign objects may get stuck or small animals may accidentally touch it, which could easily cause a short circuit fault. Furthermore, since the surge arrester body 1 is exposed to the air for a long time, the moisture in the air will accelerate the aging of the surge arrester body 1. The side wall of the protective cover 15 is provided with heat dissipation holes 16. By setting the heat dissipation holes 16, heat can be dissipated inside the protective cover 15, preventing the surge arrester body 1 from being easily damaged due to excessive temperature inside the protective cover 15 when the protective cover 15 covers the surge arrester body 1. A rotating column 17 passes through the side wall of the protective cover 15. The rotating column 17 is rotatably connected to the through point of the protective cover 15. A fan blade 18 is fixed on the outer wall of the rotating column 17. A first bevel gear 19 is fixed on the end of the rotating column 17 away from the fan blade 18. A control mechanism 20 is provided on the first bevel gear 19.

[0034] The aforementioned control mechanism 20 includes a second bevel gear 203, which meshes with a first bevel gear 19. A rotating rod 202 is fixed to the inner wall of the second bevel gear 203. A disc 204 is fixed to one end of the rotating rod 202 away from the second bevel gear 203. The rotating rod 202 passes through a support plate 201, and the rotating rod 202 is rotatably connected to the support plate 201 at the point of penetration. The support plate 201 provides support for the rotating rod 202. A movable rod 205 is hinged to the side of the disc 204 away from the rotating rod 202. The movable rod 205 is hinged to a slider 206 on the side away from the first bevel gear 19. The slider 206 is slidably mounted on the inner wall of the protective cover 15. Since the surge arrester body 1 is generally installed at a high position, the wind will cause the fan blade 18 to rotate, which in turn will drive the rotating column 17 to rotate. The rotating column 17 will then drive the first bevel gear 19 to rotate, which in turn will drive the second bevel gear 19 to rotate. Rotation 203 causes the rotating rod 202 to drive the disk 204 to rotate. When the disk 204 rotates, the movable rod 205 causes the slider 206 to reciprocate. A connecting rod 207 is fixedly connected to the side of the slider 206 closest to the arrester body 1. A moving block 208 is fixed to the end of the connecting rod 207 away from the slider 206. A transmission plate 209 is fixed to the side of the moving block 208 away from the connecting rod 207. Therefore, when the slider 206 reciprocates, the connecting rod 205... The connecting rod 207 can make the moving block 208 reciprocate. The transmission plate 209 has a through hole 21, through which a guide plate 23 passes. A rotating shaft 22 is fixed in the guide plate 23. The rotating shaft 22 is rotatably installed on the inner wall of the protective cover 15. When the moving block 208 drives the transmission plate 209 to reciprocate, the through hole 21 of the transmission plate 209 will squeeze the guide plate 23 back and forth to swing, thereby increasing the air flow and improving the heat dissipation effect.

[0035] In this invention, during use, after the surge arrester body 1 is installed, the knob 62 can be reversed to reverse the bidirectional threaded rod 61, causing the two sets of threaded sleeves 63 to move away from each other. This drives the rack 65 away from the surge arrester body 1, causing the rack 65 to move on the gear 7. The gear 7 then drives the rotating rod 8 to rotate clockwise, which in turn drives the driving wheel 9 to rotate clockwise. Through the transmission belt 10, the driven wheel 11 can rotate clockwise, causing the driven wheel 11 to drive the rotating shaft 12 to rotate clockwise. The rotating shaft 12 then drives the connecting block 14 to rotate clockwise, causing the connecting block 14 to rotate the protective cover 15. This allows the two sets of protective covers 15 to cover the surge arrester body 1 for protection, preventing the surge arrester body 1 from being exposed and easily damaged by foreign objects or small animals. In the event of a short circuit fault, and with the arrester body 1 exposed to the air for an extended period, the moisture in the air accelerates the aging of the arrester body 1. When the wind blows, the fan blades 18 rotate, which in turn drives the rotating column 17 to rotate. The rotating column 17 then drives the first bevel gear 19 to rotate, which in turn drives the second bevel gear 203 to rotate. This causes the rotating rod 202 to drive the disc 204 to rotate. As the disc 204 rotates, the movable rod 205 causes the slider 206 to reciprocate. Through the connecting rod 207 and the moving block 208, the through hole 21 of the transmission plate 209 presses against the guide plate 23, causing it to oscillate. This increases airflow and improves heat dissipation.

[0036] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A composite jacketed fixed-gap metal oxide surge arrester, comprising an arrester body (1), characterized in that: The bottom of the surge arrester body (1) is fixed with a mounting base (2), the outer wall of the surge arrester body (1) is fixed with a first electrode (3) and a second electrode (4), the mounting base (2) is provided with a groove (5), the groove (5) is provided with an adjustment mechanism (6), the top of the mounting base (2) is fixed with a support block (13), the front of the support block (13) is rotatably mounted with a rotating shaft (12), the outer wall of the rotating shaft (12) is fixed with a connecting block (14), the top of the connecting block (14) is fixed with a protective cover (15), the protective cover (15) is provided with heat dissipation holes (16), the protective cover (15) is provided with a control mechanism (20), and the adjustment mechanism (6) includes: A bidirectional threaded rod (61) is rotatably mounted on the inner wall of a groove (5) at one end, and a knob (62) is fixed at the other end of the bidirectional threaded rod (61). A threaded sleeve (63) is threadedly connected to the outer wall of a bidirectional threaded rod (61). The bottom of the threaded sleeve (63) is slidably mounted on the inner wall of a groove (64), which is formed on the inner wall of a recess (5). A rack (65) is fixed to the top of a threaded sleeve (63); The protective cover (15) has a rotating column (17) running through its side wall. A fan blade (18) is fixed to the outer wall of the rotating column (17). A first bevel gear (19) is fixed to the end of the rotating column (17) away from the fan blade (18). The control mechanism (20) includes a second bevel gear (203), which meshes with the first bevel gear (19). A rotating rod (202) is fixed to the inner wall of the second bevel gear (203). The rotating rod (202) passes through the support plate (201), and the rotating rod (202) is rotatably connected to the support plate (201) at the point where it passes through. A disc (204) is fixed to the bottom of the rotating rod (202), and a movable rod (205) is hinged on the disc (204). One end of the movable rod (205) away from the support plate (201) is hinged to a slider (206), and the slider (206) is slidably mounted on the inner wall of the protective cover (15).

2. The composite jacketed fixed-gap metal oxide surge arrester as described in claim 1, characterized in that: The rack (65) meshes with the gear (7), and a rotating rod (8) is fixed to the inner wall of the gear (7). The rotating rod (8) is rotatably mounted on the inner wall of the groove (5).

3. A composite jacketed fixed-gap metal oxide surge arrester as described in claim 2, characterized in that: The outer wall of the rotating rod (8) is fixed with a driving wheel (9), and a transmission belt (10) is wound around the outer wall of the driving wheel (9). The side of the transmission belt (10) away from the driving wheel (9) is wound around the driven wheel (11), and the inner wall of the driven wheel (11) is fixed to the outer wall of the rotating shaft (12).

4. A composite jacketed fixed-gap metal oxide surge arrester as described in claim 1, characterized in that: A connecting rod (207) is fixed to the side wall of the slider (206), and a moving block (208) is fixed to the right end of the connecting rod (207). A transmission plate (209) is fixed to the right side of the moving block (208), and a through hole (21) is provided on the transmission plate (209).

5. A composite jacketed fixed-gap metal oxide surge arrester as described in claim 1, characterized in that: The inner wall of the protective cover (15) is rotatably mounted with a rotating shaft (22), and the outer wall of the rotating shaft (22) is fixed with a guide plate (23).

6. A composite jacketed fixed-gap metal oxide surge arrester as described in claim 1, characterized in that: The protective cover (15) is provided in two sets, and the two sets of protective covers (15) are arranged in a mirror image of the mounting base (2).

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