Stable installation structure for open-phase protector

Abstract

The utility model provides a stable installation structure for an open-phase protector, which relates to the technical field of protectors and comprises a protector body. The protector body is provided with a protector shell in the front-back direction, fixing plates with up-down through holes are arranged in the middles of the bottoms of the left end face and the right end face of the protector shell, and horizontal plates with three up-down through holes arranged in the left-right direction are arranged on the upper portions of the front end face and the rear end face of the protector shell. The bottom of the front end face and the bottom of the rear end face of the protector shell are each provided with three square grooves arranged in the left-right direction, the top walls of the square grooves of the protector shell are provided with through holes penetrating up and down, and the anti-loosening rotation-stopping columns are conveniently installed on the fixed locking columns through threads and abut against the protector shell, so that rotation stopping and loosening prevention are conducted on the fixed locking columns through the anti-loosening rotation-stopping columns; the problems that due to the fact that an installation bolt is prone to loosening in the long-term use process, installation of the protector is not stable, anti-loosening measures are not convenient to add on the protector, and rotation stopping and loosening preventing are conducted on the installation bolt of the protector are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of protector, especially relates to stable installation structure for phase failure protector. BACKGROUND

[0002] The phase failure protector is an important device for preventing the damage of the protected equipment due to the voltage loss or current disappearance of one or more phases in a three-phase circuit, and its main function is to disconnect the protected equipment when the phase failure occurs, so as to prevent the unbalanced current in the power system from causing the fault or damaging the equipment. The phase failure protector is widely used in various occasions where the motor and control circuit need to be protected, such as the protection of railway signals, motors and transformers.

[0003] Based on the above, the present inventor found that the existing phase failure protector installation structure has the following disadvantages:

[0004] 1. The installation bolt is prone to loosening during long-term use, which leads to unstable installation of the protector, and it is inconvenient to add an anti-loosening measure on the protector to prevent the rotation of the installation bolt.

[0005] 2. The disassembly and assembly of the protector are realized by rotating the screw with a tool, which leads to low disassembly and assembly efficiency, and it is inconvenient to add a self-locking measure on the protector to prevent the wire from being inserted into the protector and self-locked. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above technical problems, the utility model provides a stable installation structure for phase failure protector, which solves the problems that the existing installation bolt is prone to loosening during long-term use, which leads to unstable installation of the protector, and it is inconvenient to add an anti-loosening measure on the protector to prevent the rotation of the installation bolt; the disassembly and assembly of the protector are realized by rotating the screw with a tool, which leads to low disassembly and assembly efficiency, and it is inconvenient to add a self-locking measure on the protector to prevent the wire from being inserted into the protector and self-locked.

[0007] The purpose and effect of the stable installation structure for phase failure protector of the utility model are achieved by the following specific technical means:

[0008] The utility model provides a stable installation structure for phase failure protector, including protector body, the protector body is provided with the protector shell of front and back direction, and the bottom middle part of left and right end surface of protector shell is provided with the fixed plate with upper and lower through -hole, and the upper part of front and back end surface of protector shell is provided with the horizontal plate with three upper and lower through -hole of left and right arrangement, and the bottom of front and back end surface of protector shell is provided with three square grooves of left and right arrangement, and the top wall of square groove of protector shell is provided with the through -hole of upper and lower through -punching, and the inside insertion of fixed locking column of fixed plate of protector shell is the fixed locking column of upper and lower direction, and the lower part of fixed locking column is provided with the threaded column, and the top end surface of threaded column of fixed locking column is provided with the regular hexagonal prism, and the inside opening of regular hexagonal prism of fixed locking column is the threaded hole of left and right through -punching, and the inside installation of threaded hole of fixed locking column is the anti -loose stop -turning column of left and right direction, and the outside circumference of anti -loose stop -turning column is provided with the thread, and the outside end surface of anti -loose stop -turning column is provided with the regular hexagonal groove.

[0009] Further, the lower end of the insulated pull rod is provided with a cable anti-disengagement column in the upward direction by screwing, the bottom end surface of the cable anti-disengagement column is provided with a hemispherical head, the top end surface of the cable anti-disengagement column is provided with a regular hexagonal prism, and the top end surface of the regular hexagonal prism of the cable anti-disengagement column is provided with a threaded blind hole.

[0010] Further, the insulated synchronous plates in the left and right direction are sleeved between the insulated pull rods, and the inside of the insulated synchronous plates is provided with three through holes in the upward direction.

[0011] Further, the self-locking springs are sleeved on the outer circumferences of the lower parts of the insulated pull rods, the top end surfaces of the limiting circular plates of the insulated pull rods are provided with regular hexagonal grooves.

[0012] Further, the inside of the horizontal plates of the protector shell is inserted with three insulated pull rods in the upward direction, and the outer circumferences of the lower ends of the insulated pull rods are provided with threads.

[0013] Further, the inside of the insertion blind holes of the conductive wiring blocks is inserted with circuit cables in the front and back direction, and the inner ends of the circuit cables are provided with insertion columns with upper and lower through holes.

[0014] Further, the inside of the square grooves of the protector shell is provided with conductive wiring blocks, the outside end surfaces of the conductive wiring blocks are provided with insertion blind holes, and the top walls of the insertion blind holes of the conductive wiring blocks are provided with through holes in the upward direction.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The anti-loosening and anti-rotation column is installed on the fixed locking column through threads and is pressed against the protector shell, so that the fixed locking column is anti-loosening and anti-rotation through the anti-loosening and anti-rotation column, the problem that the installation bolt is prone to loosening in long-term use, the protector is not stable in installation, and it is inconvenient to add an anti-loosening measure to the protector to anti-loosening and anti-rotation of the installation bolt is solved.

[0017] The insulation pull rod is inserted into the protector shell to bear the cable anti-disengagement column, the cable anti-disengagement column is inserted into the circuit cable line through the self-locking spring to connect and prevent disengagement, the problem that the protector is disassembled and assembled through the rotation of the screw by a tool, the disassembly and assembly efficiency is low, and it is inconvenient to add a self-locking measure to the protector to self-lock and prevent disengagement of the wire inserted into the protector is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front view structural schematic diagram of the utility model.

[0019] Figure 2 is a disassembled structural schematic diagram of the utility model.

[0020] Figure 3 is an assembly schematic diagram of the fixed locking column and the anti-loosening and anti-rotation column of the utility model.

[0021] Figure 4 is an assembly schematic diagram of the insulation pull rod and the cable anti-disengagement column of the utility model.

[0022] Figure 5 is an assembly sectional view schematic diagram of the conductive connection block and the circuit cable line of the utility model.

[0023] Figure 6 is an assembly schematic diagram of the insulation pull rod and the insulation synchronization plate of the utility model.

[0024] In the drawing: 1, protector body; 2, protector shell; 3, fixed locking column; 4, anti-loosening and anti-rotation column; 5, conductive connection block; 6, circuit cable line; 7, insulation pull rod; 8, insulation synchronization plate; 9, cable anti-disengagement column. DETAILED DESCRIPTION

[0025] The embodiments of the present application are further described in detail below in combination with the drawings and examples.

[0026] Example one:

[0027] As shown in the accompanying drawings: Figure 1 to the accompanying drawings: Figure 6 As shown in the accompanying drawings:

[0028] The utility model provides a stable mounting structure for phase failure protector, including protector body 1, the protector body 1 is provided with the protector shell 2 of front -back direction, it is convenient to bear to each component, the fixed plate with upper and lower through -hole is evenly arranged in the middle of the bottom of the left and right end surface of protector shell 2, it is convenient to fixed locking column 3 inserts inside, the horizontal plate with three left and right arrangement upper and lower through -hole is evenly arranged on the upper portion of the front and back end surface of protector shell 2, it is convenient to insert inside insulation pull rod 7, the square groove of three left and right arrangement is seted up in the bottom of the front and back end surface of protector shell 2, it is convenient to install by putting in the conduction wiring block 5, the through -hole of upper and lower through -hole is seted up on the top wall of the square groove of protector shell 2, it is convenient to insert inside cable anti -drop column 9, the fixed locking column 3 of upper and lower direction is inserted in the fixed plate inside protector shell 2, it is convenient to fix protector shell 2, the fixed locking column 3 lower part is provided with threaded column, it is convenient to fixed locking column 3 is rotated and is taken off and is installed inside the bearing plate, the top end surface of the threaded column of fixed locking column 3 is provided with regular hexagonal prism, it is convenient to fixed locking column 3 is rotated and is taken off and is installed by tool, the threaded hole of left and right through -hole is seted up in the regular hexagonal prism inside fixed locking column 3, it is convenient to prevent loose stopper column 4 through threaded installation, the threaded hole inside fixed locking column 3 is installed with the left and right direction of prevent loose stopper column 4, it is convenient to prevent loose stopper column 4 and stop rotation, the circumference of prevent loose stopper column 4 is seted up with screw thread, it is convenient to prevent loose stopper column 4 through threaded dismounting, the outer end surface of prevent loose stopper column 4 is seted up with regular hexagonal groove, it is convenient to rotate and dismount by tool.

[0029] The square groove of the protector shell 2 is internally provided with a conducting terminal block 5, facilitating the conduction of the internal circuit of the protector shell 2 and the circuit cable 6. The outer end surface of the conducting terminal block 5 is provided with an insertion blind hole, facilitating the insertion of the circuit cable 6 into the inside. The insertion blind hole of the conducting terminal block 5 is provided with an upper and lower through hole at the top wall, facilitating the passage of the cable anti-disengagement column 9. The insertion blind hole of the conducting terminal block 5 is internally inserted with the circuit cable 6 in the front and back direction, facilitating the conduction of electric energy. The inner end of the circuit cable 6 is provided with an insertion column with an upper and lower through hole, facilitating the insertion of the cable anti-disengagement column 9 into the inside. Three insulating pull rods 7 in the up and down direction are inserted into the horizontal plate of the protector shell 2, facilitating the up and down movement of the insulating pull rods 7. The lower end of the insulating pull rod 7 is provided with a thread on the outer circumference, facilitating the threaded installation of the cable anti-disengagement column 9. A self-locking spring is sleeved on the outer circumference of the lower part of the insulating pull rod 7, facilitating the downward compression of the cable anti-disengagement column 9. A limiting circular plate is arranged on the top end surface of the insulating pull rod 7, facilitating the anti-disengagement of the insulating synchronous plate 8 and facilitating the hand to pull the limiting circular plate upwards. The top end surface of the limiting circular plate of the insulating pull rod 7 is provided with a regular hexagonal groove, facilitating the disassembly and assembly by tools. The insulating synchronous plate 8 is sleeved between the insulating pull rods 7 in the left and right direction, facilitating the synchronous upward movement of the insulating pull rods 7. The insulating synchronous plate 8 is internally provided with three through holes in the up and down direction arranged in the left and right direction, facilitating the insertion of the insulating pull rods 7 into the inside. The lower end of the insulating pull rod 7 is provided with a cable anti-disengagement column 9 in the up and down direction through a thread, facilitating the anti-disengagement of the circuit cable 6. The bottom end surface of the cable anti-disengagement column 9 is provided with a hemispherical head, facilitating the quick insertion into the inside of the circuit cable 6. The top end surface of the cable anti-disengagement column 9 is provided with a regular hexagonal prism, facilitating the rotation and assembly with the insulating pull rod 7 by tools. The top end surface of the regular hexagonal prism of the cable anti-disengagement column 9 is provided with a threaded blind hole, facilitating the threaded installation of the insulating pull rod 7.

[0030] The specific use and role of the embodiment are as follows:

[0031] In the utility model, as shown in the figure, Figure 1 the protector body 1 is in a fixed installation state, and the outer end of the circuit cable 6 is in a cut-off state. The bottom of the protector body 1 is provided with a bearing plate, thereby bearing the protector body 1. At this time, the bearing plate at the bottom of the protector body 1 is in a removed state. Note that the lower part of the fixed locking column 3 is screwed into the threaded hole inside the bearing plate, thereby realizing the fixed installation of the fixed locking column 3 on the protector body 1. At the same time, the anti-loose and anti-rotation column 4 is installed on the fixed locking column 3 and tightly presses the protector shell 2, thereby preventing the protector body 1 from being unstable during installation. When the Figure 1As shown, when one of the circuit cables 6 is disassembled, the corresponding insulation pull rod 7 of the circuit cable 6 is pulled upwards, the cable anti-disengagement column 9 is driven upwards by the insulation pull rod 7 and the self-locking spring is compressed, the cable anti-disengagement column 9 is lifted out of the inside of the insertion column hole of the circuit cable 6, thereby the cable anti-disengagement column 9 releases the anti-disengagement of the circuit cable 6, the circuit cable 6 is pulled out of the inside of the insertion blind hole of the conductive connecting block 5, thereby the quick disassembly of one of the circuit cables 6 is realized, then a new circuit cable 6 is inserted into the inside of the insertion blind hole of the conductive connecting block 5, the pulling of the insulation pull rod 7 is released, the cable anti-disengagement column 9 falls into the inside of the insertion column hole of the circuit cable 6 under the action of the self-locking spring, thereby the quick installation of the circuit cable 6 is realized, when the three circuit cables 6 on the same side are disassembled synchronously, the three insulation pull rods 7 are pulled upwards synchronously through the insulation synchronous plate 8.

[0032] Embodiment two:

[0033] The difference from embodiment one is that the regular hexagonal groove of the anti-loose rotation column 4 can also be set as a regular heptagonal groove, thereby the anti-loose rotation column 4 needs to be rotated through a special tool matched with the regular heptagonal groove, so as to prevent non-workers from rotating and disassembling the anti-loose rotation column 4.

[0034] Embodiment three:

[0035] The difference from embodiment one is that the regular hexagonal groove of the insulation pull rod 7 can also be set as a regular heptagonal groove, thereby the insulation pull rod 7 needs to be rotated through a special tool matched with the regular heptagonal groove, so as to prevent non-workers from rotating and disassembling the insulation pull rod 7.

Claims

1. A stable mounting structure for a phase failure protector, characterized by: The utility model provides a protection device, including protector body (1), protector body (1) is provided with the protector shell (2) of front-back direction, and the fixed plate with upper and lower through -hole is arranged in the middle of the bottom of the left and right end surface of protector shell (2), and the horizontal plate with three left and right arrangement upper and lower through -hole is arranged on the upper portion of the front and back end surface of protector shell (2), and the square groove of three left and right arrangement is opened in the bottom of the front and back end surface of protector shell (2), and the through -hole of upper and lower through -hole is opened in the top wall of square groove of protector shell (2), and the fixed locking column (3) of upper and lower direction is inserted in the inside of fixed plate of protector shell (2), and the threaded column of fixed locking column (3) is provided with the regular hexagonal prism of top end surface, and the threaded hole of left and right through -hole is opened in the inside of regular hexagonal prism of fixed locking column (3), and the anti -loose rotation column (4) of left and right direction is installed in the inside of threaded hole of fixed locking column (3), and the thread is opened in the outside circumference of anti -loose rotation column (4), and the regular hexagonal groove is opened in the outer end surface of anti -loose rotation column (4).

2. The stable mounting structure for an open-phase protector according to claim 1, characterized in that: The through -hole of upper and lower through -hole is opened in the top wall of insertion blind hole of the square groove of protector shell (2), and the through -hole of upper and lower through -hole is opened in the top wall of insertion blind hole of the square groove of protector shell (2).

3. The stable mounting structure for an open-phase protector according to claim 2, characterized in that: The circuit cable line (6) of front and back direction is inserted in the inside of insertion blind hole of the square groove of protector shell (2), and the insertion column with upper and lower through -hole is provided with the inside end of circuit cable line (6).

4. The stable mounting structure for an open-phase protector according to claim 2, characterized in that: The horizontal plate of protector shell (2) is inserted with three insulating pull rods (7) of upper and lower direction, and the thread is opened in the outside circumference of lower end of insulating pull rod (7).

5. The stable mounting structure for an open-phase protector according to claim 4, wherein: The self -locking spring is sleeved on the outside circumference of lower part of insulating pull rod (7), and the limiting round plate is set up on the top end surface of insulating pull rod (7), and the regular hexagonal groove is opened in the top end surface of limiting round plate of insulating pull rod (7).

6. The stable mounting structure for an open-phase protector according to claim 5, wherein: The insulating synchronous board (8) of left and right direction is sleeved between insulating pull rod (7), and the through -hole of three left and right arrangement upper and lower through -hole is opened in the inside of insulating synchronous board (8).

7. The stable mounting structure for an open-phase protector according to claim 6, wherein: The cable anti -loose column (9) of upper and lower direction is installed through the thread in the lower end of insulating pull rod (7), and the hemispherical head is set up on the bottom end surface of cable anti -loose column (9), and the regular hexagonal prism is set up on the top end surface of cable anti -loose column (9), and the threaded blind hole is opened in the top end surface of regular hexagonal prism of cable anti -loose column (9).

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