Three-phase fault arc protector

Abstract

The utility model discloses a three-phase fault arc protector, which comprises a base, a protector main body and a working element, the protector main body and the working element are fixedly mounted at the upper end of the base, the working element is positioned inside the protector main body, a bunching column and a fixing block are fixedly mounted at the upper end of the protector main body, and the bunching column is positioned at the front end of the fixing block. And a protection structure is arranged at the upper end of the protector main body. According to the three-phase fault arc protector, the wire bunching column is wrapped by the protective cover, the use safety of the protector is effectively protected, the protector is limited through the fixed base, the installation and use convenience of the protector is effectively improved, the moving cylinder moves in the protective cover, and the safety of the protector is improved. Therefore, the extrusion piece can move downwards and limit the connection position of the conductor wire, and the connection stability between the protector and the conductor wire is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of protectors, in particular to a three-phase fault arc protector. Background Art

[0002] The three-phase protector is a multifunctional monitoring and protection instrument for three-phase power supply systems or three-phase electrical equipment. It can protect electrical equipment from being damaged by current. Depending on the specific use requirements, the protector will require corresponding characteristics to meet the use of special situations. However, the existing protectors still have certain use defects during use, such as;

[0003] The utility model announcement number CN219041391U discloses a three-phase combined overvoltage protector, in which the protector body stretches out an elastic sealing ring, and the elastic sealing ring tightly wraps the outer surface of the protector body, so that the interior of the outer shell is completely sealed, and dust and rainwater can be prevented from entering. The device is convenient for installation and disassembly of the protector body, has a simple structure, and is easy to operate. At the same time, the protector body has a completely sealed effect when it is installed, so that the interior of the outer shell is dustproof and rainproof, and the service life of the protector body can be increased;

[0004] In the above-mentioned document, when the protector is in use, the conductive wire will be connected to the outside of the cable bundle tube, and the connection position between the conductive wire and the cable bundle tube requires the metal wire inside the conductive wire to contact with the cable bundle tube. Generally, it will be wrapped and sealed with insulating tape after the connection, and the cable bundle tube is directly exposed at the upper end of the protector. The insulating tape is easy to loosen and debond when exposed to heat and moisture, which can easily cause the connection position between the conductive wire and the cable bundle tube to be exposed, which can easily affect the safety of the use of the protector and cause many inconveniences.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original protector structure. Utility Model Content

[0006] The utility model aims to provide a three-phase arc fault protector to solve the problem proposed in the above-mentioned background technology that the wire bundle tube is directly exposed at the upper end of the protector, and the insulating tape is easily loosened and debonded when heated and damp, which easily leads to the connection position between the conductive wire and the wire bundle tube being exposed, which easily affects the safety of the use of the protector and there are many inconveniences.

[0007] To achieve the above object, the utility model provides the following technical solution: a three-phase arc fault protector, comprising a base and a protector body and a working element fixedly mounted on the upper end of the base;

[0008] The working element is located inside the protector body, and a wire beam post and a fixing block are fixedly mounted on the upper end of the protector body, and the wire beam post is located at the front end of the fixing block;

[0009] A protective structure is arranged at the upper end of the protector body, and the protective structure can achieve the effect of wrapping and protecting the three groups of cable tie poles.

[0010] Preferably, a moving cylinder and a protective cover are provided inside the protective structure, and the protective cover is slidably mounted on the front end of the fixed block, and a moving cylinder is slidably mounted inside the protective cover, and the moving cylinder is located outside the cable tie column.

[0011] Preferably, a rotating rod is rotatably installed inside the protective cover, and a bevel gear 1 is fixedly installed on the outside of the rotating rod, and the bevel gear 1 is arranged corresponding to the wiring harness column, and a wire groove is opened at the lower end of the protective cover.

[0012] Preferably, a rotating disk is rotatably installed inside the protective cover, and a bevel gear 2 is fixedly installed on the upper end of the rotating disk, and a square block is fixedly installed on the lower end of the rotating disk, and the square block is engaged with the inside of the moving cylinder, and an extrusion piece is fixedly installed on the lower end of the moving cylinder, and the extrusion piece is threadedly connected to the protective cover.

[0013] Preferably, a limiting structure is provided inside the protective cover, and the limiting structure can improve the stability of the connection between the cable tie post and the wire;

[0014] A sliding block and a sliding groove are arranged inside the limiting structure. The sliding block is fixedly installed inside the fixed block, and the sliding groove is opened inside the protective cover, and the sliding block is located inside the sliding groove.

[0015] Preferably, a limiting groove and a support spring are provided inside the limiting structure, the limiting groove is opened inside the protective cover, and the support spring is fixedly installed inside the limiting groove, and a limiting block is fixedly installed at one end of the support spring away from the limiting groove, and the limiting block is located inside the sliding block.

[0016] Preferably, the moving block is slidably mounted inside the protective cover, and one end of the moving block close to the limiting groove is located inside the sliding block, and the moving block is in close contact with the limiting block.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The protective cover is used to wrap the cable tie column, which effectively protects the safety of the protector, and the protector is limited by the fixed base, which effectively improves the convenience of installation and use of the protector;

[0019] 2. By moving the moving cylinder inside the protective cover, the extrusion piece can be moved downward and the connection position of the conductive wire can be limited, which effectively ensures the stability of the connection between the protector and the conductive wire;

[0020] 3. Furthermore, a sliding block and a limiting block are provided. By controlling the position between the sliding block and the limiting block, the position of the protective cover can be limited to ensure the stability of the connection between the extruded part and the conductive wire;

[0021] 4. Furthermore, by setting the moving block, the moving block can slide inside the protective cover, and the position of the limit block can be controlled by the movement of the moving block, thereby improving the convenience of using the protector. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the top cross-sectional structure of the utility model;

[0026] Figure 5 For this utility model Figure 4 Schematic diagram of the cross-section structure along line A;

[0027] Figure 6 This is a rear cross-sectional structural diagram of the sliding block of the utility model;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the square block of the utility model.

[0029] In the figure: 1. base; 2. protector body; 3. working element; 4. wire harness column; 5. fixed block; 6. sliding block; 7. sliding groove; 8. protective cover; 9. rotating rod; 10. bevel gear one; 11. rotating disk; 12. square block; 13. bevel gear two; 14. moving cylinder; 15. extrusion piece; 16. wire groove; 17. limit groove; 18. support spring; 19. limit block; 20. moving block. DETAILED DESCRIPTION

[0030] 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.

[0031] In a specific embodiment, Figure 1-Figure 3 As shown;

[0032] A base 1 and a protector body 2 and a working element 3 fixedly mounted on the upper end of the base 1;

[0033] The working element 3 is located inside the protector body 2, and the upper end of the protector body 2 is fixedly mounted with a wire tie post 4 and a fixing block 5, and the wire tie post 4 is located at the front end of the fixing block 5;

[0034] A protective structure is provided at the upper end of the protector body 2 , and the protective structure can achieve the effect of wrapping and protecting the three groups of cable tie poles 4 .

[0035] When using the three-phase arc fault protector, the wiring harness column 4 and the connection position between it and the conductive wire can be wrapped by the protective cover 8 to ensure the protective effect of the connection between the protector and the protective cover 8, and the protector body 2 is fixed by the base 1 during the installation process of the protector, ensuring the convenience of installation and use of the protector.

[0036] In one specific embodiment, Figure 1-Figure 5 and Figure 7 As shown;

[0037] A moving cylinder 14 and a protective cover 8 are provided inside the protective structure, and the protective cover 8 is slidably mounted on the front end of the fixed block 5, and the moving cylinder 14 is slidably mounted inside the protective cover 8, and the moving cylinder 14 is located outside the cable tie column 4;

[0038] A rotating rod 9 is rotatably mounted inside the protective cover 8, and a bevel gear 10 is fixedly mounted on the outer side of the rotating rod 9, and the bevel gear 10 is arranged corresponding to the cable tie post 4, and a wire groove 16 is opened at the lower end of the protective cover 8;

[0039] A rotating disk 11 is rotatably installed inside the protective cover 8, and a bevel gear 13 is fixedly installed on the upper end of the rotating disk 11, and a square block 12 is fixedly installed on the lower end of the rotating disk 11. At the same time, the square block 12 is engaged with the inside of a moving cylinder 14, and an extrusion piece 15 is fixedly installed on the lower end of the moving cylinder 14, and the extrusion piece 15 is threadedly connected to the protective cover 8.

[0040] When the three-phase arc fault protector is used, the wire harness column 4 needs to be connected to the conductive wire, and after the conductive wire is connected, the conductive wire outside the wire harness column 4 needs to be squeezed by the extrusion piece 15 to ensure the stability of the connection between the wire harness column 4 and the conductive wire;

[0041] During this process, the user needs to use a wrench to rotate the rotating rod 9. During the rotation of the rotating rod 9, the three sets of bevel gears 10 will be driven to rotate, and the bevel gear 10 will drive the bevel gear 2 13 meshing with it to rotate. At this time, the rotating disk 11 can drive the square block 12 to rotate, and then the square block 12 can drive the moving cylinder 14. The extrusion piece 15 at the lower end of the moving cylinder 14 is threadedly connected to the protective cover 8, so that the moving cylinder 14 can drive the extrusion piece 15 to rotate and make the extrusion piece 15 move downward to extrude the conductive wire. At this time, the conductive wire can be limited inside the wire groove 16 to ensure the stability of the connection between the conductive wire and the wiring harness column 4.

[0042] Based on the above embodiments, Figure 1 and Figure 3-Figure 7 As shown;

[0043] A limiting structure is provided inside the protective cover 8, and the limiting structure can improve the stability of the connection between the cable tie post 4 and the wire;

[0044] The interior of the limiting structure is provided with a sliding block 6 and a sliding groove 7. The sliding block 6 is fixedly installed inside the fixed block 5, and the sliding groove 7 is opened inside the protective cover 8, and the sliding block 6 is located inside the sliding groove 7;

[0045] A limiting groove 17 and a support spring 18 are provided inside the limiting structure. The limiting groove 17 is provided inside the protective cover 8, and the support spring 18 is fixedly installed inside the limiting groove 17. A limiting block 19 is fixedly installed at one end of the support spring 18 away from the limiting groove 17, and the limiting block 19 is located inside the sliding block 6.

[0046] The moving block 20 is slidably mounted inside the protective cover 8 , and one end of the moving block 20 close to the limiting groove 17 is located inside the sliding block 6 , and the moving block 20 is in close contact with the limiting block 19 .

[0047] When using the three-phase fault arc protector to connect the conductive wire, the protective cover 8 needs to be moved upward. During this process, the two groups of moving blocks 20 need to be pressed. After being squeezed, the moving blocks 20 will move toward the inside of the protective cover 8. During the movement of the moving blocks 20, they will contact and squeeze the limit blocks 19. Then, the limit blocks 19 can be moved toward the inside of the limit groove 17 and squeeze the support spring 18. At this time, the support spring 18 will shrink. After the limit blocks 19 are separated from the inside of the sliding block 6, the protective cover 8 can be moved upward. At this time, the sliding block 6 will slide inside the sliding groove 7. After the conductive wire is connected, the protective cover 8 can be moved to the initial position, and the limit blocks 19 will engage with the sliding block 6 again, thereby limiting the protective cover 8, ensuring the stability of the extrusion member 15 in limiting the conductive wire, and increasing the overall practicality.

[0048] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-phase arc fault protector, comprising a base (1), a protector body (2) and a working element (3) fixedly mounted on the upper end of the base (1); Features: The working element (3) is located inside the protector body (2), and a wire harness column (4) and a fixing block (5) are fixedly mounted on the upper end of the protector body (2), and the wire harness column (4) is located at the front end of the fixing block (5); A protective structure is provided at the upper end of the protector body (2), and the protective structure can achieve the effect of wrapping and protecting the three groups of cable tie poles (4).

2. The three-phase arc fault protector according to claim 1, characterized in that: A moving cylinder (14) and a protective cover (8) are provided inside the protective structure, and the protective cover (8) is slidably mounted on the front end of the fixed block (5), and the moving cylinder (14) is slidably mounted inside the protective cover (8), and the moving cylinder (14) is located outside the cable tie column (4).

3. The three-phase arc fault protector according to claim 2, characterized in that: A rotating rod (9) is rotatably mounted inside the protective cover (8), and a bevel gear (10) is fixedly mounted on the outside of the rotating rod (9), and the bevel gear (10) is arranged corresponding to the cable tie post (4). A wire groove (16) is provided at the lower end of the protective cover (8).

4. The three-phase arc fault protector according to claim 2, characterized in that: A rotating disk (11) is rotatably mounted inside the protective cover (8), a bevel gear 2 (13) is fixedly mounted on the upper end of the rotating disk (11), and a square block (12) is fixedly mounted on the lower end of the rotating disk (11), the square block (12) is engaged with the inside of a moving cylinder (14), an extrusion piece (15) is fixedly mounted on the lower end of the moving cylinder (14), and the extrusion piece (15) is threadedly connected to the protective cover (8).

5. The three-phase arc fault protector according to claim 2, characterized in that: A limiting structure is arranged inside the protective cover (8), and the limiting structure can improve the stability of the connection between the wiring harness column (4) and the wire; A sliding block (6) and a sliding groove (7) are arranged inside the limiting structure; the sliding block (6) is fixedly mounted inside the fixed block (5); the sliding groove (7) is opened inside the protective cover (8); and the sliding block (6) is located inside the sliding groove (7).

6. The three-phase arc fault protector according to claim 5, characterized in that: A limiting groove (17) and a support spring (18) are arranged inside the limiting structure; the limiting groove (17) is opened inside the protective cover (8); the support spring (18) is fixedly installed inside the limiting groove (17); a limiting block (19) is fixedly installed at one end of the support spring (18) away from the limiting groove (17); and the limiting block (19) is located inside the sliding block (6).

7. The three-phase arc fault protector according to claim 6, characterized in that: The moving block (20) is slidably mounted inside the protective cover (8), and one end of the moving block (20) close to the limiting groove (17) is located inside the sliding block (6), and the moving block (20) is in close contact with the limiting block (19).

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