CN219833744U

CN219833744U - Zero line fault protection device

Info

Publication number: CN219833744U
Application number: CN202321039582.5U
Authority: CN
Inventors: 罗扶满; 刘绍捷; 劳忠林
Original assignee: Shenzhen Xin Heng Ji Electric Co ltd
Current assignee: Shenzhen Xin Heng Ji Electric Co ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-10-13
Anticipated expiration: 2033-05-05

Abstract

The utility model relates to a zero line fault protection device which comprises an equipment main body and an installation rod, wherein screw holes for fixing in a distribution box are formed in two ends of the installation rod, the equipment main body is installed on the installation rod, an installation block is arranged in the middle of the installation rod, an installation groove corresponding to the installation block is formed in the rear side of the equipment main body, fixing seats are symmetrically arranged at two ends of the installation rod, a clamping block is slidably installed in the fixing seats, a plurality of clamping grooves are symmetrically arranged at two ends of the equipment main body, the clamping block is movably connected with the clamping grooves, a spring is wrapped on the outer wall of the clamping block, a fixing block is movably installed in the fixing seats and acts on the clamping block to fix the clamping block.

Description

Zero line fault protection device

Technical Field

The utility model relates to the technical field of circuit protection, in particular to a zero line fault protection device.

Background

The low-voltage power supply network in China generally adopts a three-phase four-wire system power supply mode, when the low-voltage power supply network causes zero line disconnection due to various reasons, the power supply voltage causes voltage unbalance phenomenon along with different loads on phase lines, zero line disconnection faults occur in actual operation, the phenomenon that the phase line voltage with large load is too low and the phase line voltage with small load is too high can be caused, the service life of electric equipment can be shortened, the electric equipment can be seriously burnt, and along with the development of technology, an intelligent zero line protection system device appears, the occurrence of the problem is greatly reduced, and the zero line circuit is effectively protected.

For example, the application number is: 202021327797.3, this patent adopts the vertical mobile device body for the device body is adjusted to the height of being convenient for connecting the circuit in the block terminal, and fixes through the screw, adjusts the distance between the mounting panel in order to adapt to the longitudinal distance of mounting hole in the block terminal.

For the related art, the inventor considers that the installation plate and the equipment body are all fixed by adopting a plurality of screws, an operator needs to screw the screws to install and adjust when installing or adjusting the position, and because the space in the distribution box is narrow, the installation and the position adjustment of the equipment body are inconvenient by the structure, and when the installation is carried out, the installation is carried out by aiming at the blind holes and the screws, the operation is troublesome, and certain limitation is caused, so that the zero line fault protection device is provided.

Disclosure of Invention

In order to solve the above-mentioned problems in the background art, the present utility model provides a zero line fault protection device.

The utility model adopts the following technical scheme: the utility model provides a zero line fault protection device, includes equipment main part and installation pole, the installation pole both ends are equipped with the screw that is used for fixing in the block terminal, the equipment main part is installed on the installation pole, be equipped with the installation piece in the middle of the installation pole, equipment main part rear side be equipped with the corresponding mounting groove of installation piece, the fixing base is installed to installation pole both ends symmetry, slidable mounting has the fixture block in the fixing base, equipment main part both ends symmetry is equipped with a plurality of draw-in grooves, the fixture block with draw-in groove swing joint, the parcel of fixture block outer wall has the spring, movable mounting has the fixed block in the fixing base, the fixed block acts on the fixture block is fixed.

As preferable in the utility model, two ends of the spring are respectively fixedly connected with the clamping block and the inner wall of the fixing seat.

As the preferable mode of the utility model, the connection part of the fixed block and the fixed seat is provided with a rubber cushion, and the rubber cushion is fixedly arranged on the inner wall of the fixed seat.

Preferably, the left end face of the fixing block expands and inclines from bottom to top, and the right end face of the fixing block is a vertical face.

As the preferable mode of the utility model, connecting strips which are easy to break are symmetrically arranged at the connecting positions of the fixed block and the fixed seat.

Preferably, the upper end of the fixed block is provided with a pressing plate.

As preferable in the utility model, the ends of the clamping block are symmetrically arranged inclined planes, and the cross section of the clamping block is V-shaped.

As preferable, the top end of the clamping block end is provided with an arc surface.

As the preferable mode of the utility model, the outer wall of the clamping block is fixedly provided with the limiting ring, and the limiting ring is movably connected with the fixing seat.

In the present utility model, the mounting block and the mounting groove have a T-shaped cross section, and balls are symmetrically mounted on the outer wall of the mounting block and contact with the inner wall of the mounting groove.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the installation block is matched with the installation groove to enable the equipment main body to be vertically and slidably installed on the installation rod, so that the equipment main body can be conveniently adjusted to be suitable for the height of a connecting line, and the equipment main body can be quickly fixed by inserting the clamping block into the clamping groove after adjustment.

According to the clamping block fixing device, the clamping blocks are limited through the fixing blocks, the clamping blocks are prevented from shrinking inwards, the clamping blocks are tightly inserted into the clamping grooves, the fixing stability of the device main body is guaranteed, no tool is needed, the operation is simple and convenient, and the installation efficiency is improved.

Drawings

FIG. 1 is a schematic view of the main structure of the apparatus of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the area A in FIG. 1 according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a fixing base according to the present utility model;

fig. 4 is a schematic cross-sectional view of a fixing base structure of the present utility model.

In the figure: 1. an apparatus main body; 11. a clamping groove; 12. a mounting groove; 2. a mounting rod; 21. a screw hole; 22. a mounting block; 3. a fixing seat; 31. a clamping block; 311. a spring; 312. a limiting ring; 32. and a fixed block.

Description of the embodiments

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

Examples

Referring to fig. 1-4, the utility model provides a zero line fault protection device, which comprises a device main body 1 and a mounting rod 2, wherein screw holes 21 for fixing in a distribution box are arranged at two ends of the mounting rod 2, the device main body 1 is mounted on the mounting rod 2, a mounting block 22 is arranged in the middle of the mounting rod 2, a mounting groove 12 corresponding to the mounting block 22 is arranged at the rear side of the device main body 1, a fixing seat 3 is symmetrically arranged at two ends of the mounting rod 2, a clamping block 31 is slidably arranged in the fixing seat 3, a plurality of clamping grooves 11 are symmetrically arranged at two ends of the device main body 1, the clamping block 31 is movably connected with the clamping groove 11, a spring 311 is wrapped on the outer wall of the clamping block 31, a fixing block 32 is movably mounted in the fixing seat 3, and the fixing block 32 acts on the clamping block 31 to fix.

Referring to fig. 3-4, two ends of the spring 311 are fixedly connected with the clamping block 31 and the inner wall of the fixing base 3, and the clamping block 31 is pushed by the spring 311, so that the clamping block 31 is automatically inserted into the clamping slot 11, and the falling of the device main body 1 caused by loosening of the clamping block 31 is prevented.

Referring to fig. 3, a rubber pad is disposed at the connection between the fixing block 32 and the fixing base 3, and is fixedly mounted on the inner wall of the fixing base 3, so that the friction between the fixing base 3 and the fixing block 32 is increased by the design, and the fixing block 32 is tightly inserted into the fixing base 3.

Referring to fig. 4, the left end face of the fixing block 32 is expanded and inclined from bottom to top, the right end face is a vertical plane, and the diameter of the upper portion of the fixing block 32 is enlarged by this design, so that the upper portion of the fixing block 32 presses the inner wall of the fixing seat 3 when the clamping block 31 is limited, the fixing block 32 is more stable when inserted into the fixing seat 3, and the tightness of contact with the clamping block 31 is ensured by the vertical direction of the right end face.

Referring to fig. 3-4, the connecting parts between the fixing block 32 and the fixing base 3 are symmetrically provided with connecting strips which are easy to break, so that the fixing block 32 is simply fixed at the upper end of the fixing base 3 by the design, and the falling and losing of the fixing block 32 are avoided.

Referring to fig. 1-4, a pressing plate is disposed at the upper end of the fixing block 32, so that the fixing block 32 is pushed to move downward.

Referring to fig. 1-4, the ends of the clamping blocks 31 are symmetrically inclined planes, and the cross section of the clamping blocks is V-shaped, so that the device body 1 can push the clamping blocks 31 to shrink and move, the height of the device body 1 can be adjusted conveniently, and the cambered surfaces are arranged at the top ends of the clamping blocks 31, so that the device body 1 is protected, and the clamping blocks 31 are prevented from scratching the device body 1.

Referring to fig. 3-4, a limiting ring 312 is fixedly mounted on the outer wall of the clamping block 31, the limiting ring 312 is movably connected with the fixing base 3, and the limiting ring 312 plays a role in limiting the clamping block 31 to prevent the clamping block 31 from falling off from the fixing base 3.

Referring to fig. 1, the cross-sectional shapes of the mounting blocks 22 and the mounting grooves 12 are consistent and are T-shaped, balls are symmetrically mounted on the outer walls of the mounting blocks 22 and contact with the inner walls of the mounting grooves 12, the mounting blocks 22 and the mounting grooves 12 are movably connected through the T-shaped mounting blocks 22, the transverse limiting effect is achieved on the device main body 1, the device main body 1 is prevented from falling off, and the design of the balls enables the device main body 1 to slide more smoothly.

The specific operation mode of the first embodiment of the utility model is as follows:

the installation rod 2 is fixed in the distribution box through the bolts, the bolts penetrate through the screw holes 21 to fix the installation rod 2, the installation grooves 12 of the equipment main body 1 are aligned with the installation blocks 22 of the installation rod 2, the clamping blocks 31 are pushed to continuously move inwards when the equipment main body 1 moves, the clamping blocks 31 move to squeeze the springs 311, when the clamping blocks 31 are aligned with the clamping grooves 11, the springs 311 reset to push the clamping blocks 31 to be inserted into the clamping grooves 11, the equipment main body 1 is adjusted to a proper height so as to adapt to the height of a distribution box connecting line, a connecting line is convenient, at the moment, the thrust of the springs 311 acts on the clamping blocks 31 to be clamped into the clamping grooves 11, the temporary fixation of the equipment main body 1 is ensured under the condition that the equipment main body 1 is pushed by no external force, the fixing blocks 32 at the two ends of the installation rod 2 are pushed downwards, the fixing blocks 32 move downwards to fracture the connecting strips, meanwhile, the side walls of the fixing blocks 32 are contacted with the tail ends of the clamping blocks 31 and play a limiting fixation role of the clamping blocks 31, and the clamping blocks 31 are prevented from being separated from the clamping grooves 11, so that the effect of stabilizing the equipment main body 1 is achieved, and the operation is simple and convenient to use; when the height of the equipment main body 1 needs to be adjusted again, the fixing block 32 is moved upwards, the clamping block 31 is separated from the limit of the fixing block 32, at the moment, the clamping block 31 can be retracted inwards to move, the height of the equipment main body 1 is convenient to adjust again, the clamping block 31 is inserted into the clamping groove 11 with a proper height, the fixing block 32 is moved downwards to limit and fix the clamping block 31, and the stability of the fixing of the equipment main body 1 is guaranteed.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims

1. The utility model provides a zero line fault protection device, includes equipment main part (1) and installation pole (2), installation pole (2) both ends are equipped with screw (21) that are used for fixing in the block terminal, equipment main part (1) are installed on installation pole (2), its characterized in that:

the mounting rod is characterized in that a mounting block (22) is arranged in the middle of the mounting rod (2), mounting grooves (12) corresponding to the mounting block (22) are formed in the rear side of the device body (1), fixing seats (3) are symmetrically arranged at two ends of the mounting rod (2), clamping blocks (31) are arranged in the fixing seats (3) in a sliding mode, a plurality of clamping grooves (11) are symmetrically formed in two ends of the device body (1), the clamping blocks (31) are movably connected with the clamping grooves (11), springs (311) are wrapped on the outer walls of the clamping blocks (31), fixing blocks (32) are movably arranged in the fixing seats (3), and the fixing blocks (32) are used for fixing the clamping blocks (31).

2. A zero line fault protection device according to claim 1, wherein: two ends of the spring (311) are fixedly connected with the clamping block (31) and the inner wall of the fixing seat (3) respectively.

3. A zero line fault protection device according to claim 1, wherein: the connection part of the fixed block (32) and the fixed seat (3) is provided with a rubber cushion, and the rubber cushion is fixedly arranged on the inner wall of the fixed seat (3).

4. A zero line fault protection device according to claim 1, wherein: the left end face of the fixed block (32) expands and inclines from bottom to top, and the right end face of the fixed block is a vertical face.

5. A neutral line fault protection device according to claim 3 or 4, wherein: connecting strips which are easy to break are symmetrically arranged at the connecting positions of the fixing blocks (32) and the fixing base (3).

6. The neutral line fault protection device of claim 5, wherein: the upper end of the fixed block (32) is provided with a pressing plate.

7. A zero line fault protection device according to claim 1, wherein: the ends of the clamping blocks (31) are inclined planes which are symmetrically arranged, and the cross section of the clamping blocks is V-shaped.

8. The neutral line fault protection device of claim 7, wherein: an arc surface is arranged at the top end of the end head of the clamping block (31).

9. A zero line fault protection device according to claim 1, wherein: the limiting ring (312) is fixedly arranged on the outer wall of the clamping block (31), and the limiting ring (312) is movably connected with the fixing seat (3).

10. A zero line fault protection device according to claim 1, wherein: the cross-sectional shapes of the mounting blocks (22) and the mounting grooves (12) are consistent, the mounting blocks are T-shaped, balls are symmetrically arranged on the outer walls of the mounting blocks (22), and the balls are in contact with the inner walls of the mounting grooves (12).