CN212726324U

CN212726324U - Line protection device for electrical engineering

Info

Publication number: CN212726324U
Application number: CN202021711315.4U
Authority: CN
Inventors: 董旭飞; 谷佩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-16
Anticipated expiration: 2030-08-17

Abstract

The utility model provides a circuit protection device for electrical engineering belongs to circuit protection technical field, the on-line screen storage device comprises a base, a sliding mechanism, bearing mechanism and fixture, the base is used for fixing, base upper end is located to a sliding mechanism, can follow base length direction and slide, first sliding mechanism upper end is located to bearing mechanism, a circuit for bearing electrical engineering, fixture locates bearing mechanism upper end, a centre gripping circuit in the direction mutually perpendicular with circuit length direction, a sliding mechanism's slip direction is perpendicular with the length direction of circuit, the last pulling force of perpendicular to circuit length direction is adjusted with the help of a sliding mechanism after the circuit installation. The utility model provides a pair of circuit protection device for electrical engineering has that circuit protection can the reinforce for electrical engineering, and the circuit is difficult for receiving the extrusion, and the circuit is not fragile, can cushion the pulling force behind the circuit installation, extension circuit life's technological effect.

Description

Line protection device for electrical engineering

Technical Field

The utility model belongs to the technical field of the line protection, more specifically say, relate to a line protection device for electrical engineering.

Background

The electrical engineering, EE for short, is a core subject and a key subject in the modern science and technology field, for example, the arrival of the information era based on the computer network is promoted just by the great progress of the electronic technology, and the living and working modes of human beings are changed, and the most important devices in the electrical engineering are electrical devices and connecting devices, and various lines are required for the connecting devices, so that the protection of the lines is also important while the electrical devices are protected.

Traditional electric circuit protection device is inside the ability of playing the protection circuit buries the circuit underground or some buildings, need carry out large-scale overhaul when taking place the circuit problem, make the time and the cost of overhauing improve greatly, the rubber layer of circuit top layer parcel is corroded and is difficult for changing after using for a long time, and if bury and do not have fine extrusion-proof ability in thinner position, the object easily leads to the circuit to be extruded and damaged after passing, for this we propose a circuit protection device for electrical engineering.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit protection device for electrical engineering aims at solving and is weak to circuit protection ability for electrical engineering, and the easy technical problem who extrudes and damage of circuit.

In order to achieve the above object, the utility model adopts the following technical scheme: the circuit protection device for the electrical engineering comprises a base, a first sliding mechanism, a bearing mechanism and a clamping mechanism, wherein the base is used for being connected with the ground or a building, and the first sliding mechanism is arranged at the upper end of the base and can slide along the length direction of the base; the bearing mechanism is arranged at the upper end of the first sliding mechanism and used for bearing the circuit for electrical engineering; the clamping mechanism is arranged at the upper end of the bearing mechanism and used for clamping the line in the direction perpendicular to the length direction of the line, the sliding direction of the first sliding mechanism is perpendicular to the length direction of the line, and the pulling force of the line in the direction perpendicular to the length direction of the line after being installed is adjusted by means of the first sliding mechanism.

As another embodiment of the present application, the line protection device for electrical engineering further includes a second sliding mechanism disposed at the upper end of the first sliding mechanism and located at the lower end of the supporting mechanism, a sliding direction of the second sliding mechanism is perpendicular to a sliding direction of the first sliding mechanism, and a pulling force in a line length direction after the line is installed is adjusted by means of the second sliding mechanism.

As another embodiment of the present application, the base includes a bottom plate, a connecting member, and a buffer seat, and the bottom plate has a rectangular plate-shaped structure; the connecting pieces are arranged on the side ends of the bottom plate and are used for connecting the ground or a building; the buffer seat is a plurality of, all locates the bottom of bottom plate is used for the buffering to act on pressure on the bottom plate.

As another embodiment of the present application, the first sliding mechanism includes a plurality of first sliding rails and a telescopic column, the plurality of first sliding rails are all arranged along the length direction of the base, and the plurality of first sliding rails are arranged in parallel; the telescopic columns are multiple, the bottom end of each telescopic column is provided with a first sliding block, the first sliding blocks are connected to the first sliding rails in a sliding mode and can slide along the first sliding rails, the telescopic columns are used for supporting the second sliding mechanisms, and the telescopic columns can stretch in the height direction of the base and are used for buffering pressure acting on the second sliding mechanisms.

As another embodiment of the present application, the second sliding mechanism includes a supporting table, a second sliding rail, and a supporting column, wherein the supporting table is disposed at the upper end of the plurality of telescopic columns; the plurality of second sliding rails are arranged along the width direction of the base and are vertical to the arrangement direction of the first sliding rails, and the plurality of second sliding rails are arranged in parallel; the supporting columns are two, the bottom ends of the supporting columns are provided with second sliding blocks which are connected to the second sliding rails in a sliding mode, and the supporting columns are used for supporting the bearing mechanism.

As another embodiment of the present application, the supporting mechanism includes a supporting plate and a buffer plate, the supporting plate is arc-shaped, and is fixedly connected to the upper ends of the plurality of supporting columns, and is used for supporting the circuit for electrical engineering, and the radian of the supporting plate is matched with the radian of the outer arc of the circuit; the buffer plate is arc-shaped, is lined at the bottom of the inner side of the bearing plate and is used for buffering the pressure acting on the bearing plate.

As another embodiment of the application, the clamping mechanism comprises a clamping plate, a locking member and a spring member, the clamping plate is arc-shaped and forms a cavity for placing a circuit with the bearing plate, one end of the clamping plate is hinged with one supporting column, the other end of the clamping plate is detachably connected with the other supporting column, and the circuit can be placed in the cavity between the clamping plate and the bearing plate after the clamping plate is detached from the supporting column; the locking piece is arranged at one end, opposite to the hinged end, of the clamping plate and detachably connected with the supporting column, and the locking piece is used for locking the clamping plate to the supporting column; the spring part is a plurality of, all locates the inboard of grip block, the spring part is used for buffering the pressure that acts on the grip block.

As another embodiment of the present application, the telescopic column includes a column body, a sleeve and a lifting column, the first sliding block is fixedly disposed on a lower end surface of the column body, and the column body can slide along the first sliding rail by means of the first sliding block; the sleeve is fixedly arranged at the upper end of the column body, a first spring is arranged at the bottom in the sleeve, a clamping groove is formed in the inner wall of the sleeve, and a second spring is arranged in the clamping groove; the lifting column is inserted in the sleeve, the bottom end of the lifting column is fixedly connected with the first spring, the upper end of the lifting column is a free end, the lifting column can stretch out and draw back along the vertical direction by means of the first spring, the upper end of the lifting column is fixedly connected with the second sliding mechanism, a limiting block is arranged on the outer side of the lower end of the lifting column, the lower end of the limiting block is fixedly connected with the second spring, and the sliding range of the lifting column in the sleeve is limited by means of the limiting block.

As another embodiment of the application, the buffer seat comprises a pressure spring and a flexible sleeve, one end of the pressure spring is fixedly arranged at the bottom end of the bottom plate, the other end of the pressure spring is a free end, and the pressure spring is vertically arranged; the flexible sleeve is sleeved on the pressure spring and used for wrapping and sealing the pressure spring, the upper end of the flexible sleeve is fixedly connected with the bottom plate, and the flexible sleeve is also compressed in the compression process of the pressure spring.

As another embodiment of this application, be equipped with the flame retardant coating on the up end of grip block, the flame retardant coating bonds on the up end of grip block, the flame retardant coating is used for the fire prevention.

The utility model provides a pair of circuit protection device for electrical engineering's beneficial effect lies in: compared with the prior art, the utility model relates to a circuit protection device for electrical engineering, fix the base subaerial or on the building, make first slide mechanism can follow base length direction and slide, make bearing mechanism bearing circuit for electrical engineering, with fixture centre gripping circuit on the direction mutually perpendicular with circuit length direction, first slide mechanism's slip direction is perpendicular with the length direction of circuit, the pulling force on perpendicular to circuit length direction is adjusted with the help of first slide mechanism after the circuit installation, it is weak to circuit protection ability for electrical engineering among the prior art to have solved, the easy technical problem who extrudees and damage of circuit, it is strong to circuit protection ability for electrical engineering to have, the circuit is difficult to receive the extrusion, the circuit is not fragile, can cushion the pulling force after the circuit installation, prolong circuit life's technical effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a circuit protection device for electrical engineering according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an expanded state of the line protection device for electrical engineering according to an embodiment of the present invention (a circular dotted line in the figure represents a line);

fig. 3 is a schematic structural view of the telescopic column of the first sliding mechanism of the line protection device for electrical engineering according to an embodiment of the present invention.

In the figure: 1. a base; 11. a base plate; 12. a connecting member; 13. a buffer seat; 131. a pressure spring; 132. a flexible sleeve; 2. a first sliding mechanism; 21. a first slide rail; 22. a telescopic column; 221. a cylinder; 222. a sleeve; 223. a lifting column; 224. a first spring; 225. a second spring; 226. a limiting block; 23. a first slider; 3. a support mechanism; 31. a support plate; 32. a buffer plate; 4. a clamping mechanism; 41. a clamping plate; 42. a locking member; 43. a spring member; 5. a second sliding mechanism; 51. a support table; 52. a second slide rail; 53. a support pillar; 54. a second slider; 6. and a fire-proof layer.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to fig. 3, a circuit protection device for electrical engineering according to the present invention will now be described. The line protection device for the electrical engineering comprises a base 1, a first sliding mechanism 2, a bearing mechanism 3 and a clamping mechanism 4, wherein the base 1 is used for being connected with the ground or a building; the first sliding mechanism 2 is arranged at the upper end of the base 1 and can slide along the length direction of the base 1; the bearing mechanism 3 is arranged at the upper end of the first sliding mechanism 2 and used for bearing the circuit for electrical engineering; the clamping mechanism 4 is arranged at the upper end of the bearing mechanism 3 and used for clamping the line in the direction perpendicular to the length direction of the line, the sliding direction of the first sliding mechanism 2 is perpendicular to the length direction of the line, and the pulling force of the line in the direction perpendicular to the length direction of the line after being installed is adjusted by means of the first sliding mechanism 2.

The utility model provides a circuit protection device for electrical engineering, compared with the prior art, the utility model discloses a circuit protection device for electrical engineering, fix base 1 on ground or building, make first slide mechanism 2 can slide along base 1 length direction, make supporting mechanism 3 support circuit for electrical engineering, with fixture 4 centre gripping circuit in the direction perpendicular to circuit length direction, the sliding direction of first slide mechanism 2 is perpendicular to the length direction of circuit, the pulling force in the direction perpendicular to circuit length direction after the circuit is installed is adjusted with the help of first slide mechanism 2, the technical problem that circuit protection ability is weak for electrical engineering among the prior art, the circuit is easily extruded and damaged is solved, it is strong to circuit protection ability for electrical engineering, the circuit is difficult to be extruded, the circuit, can cushion the pulling force after the circuit is installed, the service life of the line is prolonged.

The lines for electrical engineering generally refer to cables, wires and the like, and include high-voltage lines and low-voltage lines, and are mainly power transmission lines for transmitting electric energy and the like.

The base 1 is used for being connected on the ground or on the building, plays the effect of fixed connection, will carry out the position of reasonable arrangement base 1 according to the mounted position of the circuit for electrical engineering in the actual scene. The tension after the installation of the line refers to a tension in the application, which is formed in the length direction of the line or in the direction perpendicular to the length direction when the line cannot be installed according to a preset path due to the limitation of the installation position, the installation environment and the like after the installation of the line for electrical engineering is completed. Through setting up the pulling force that first slide mechanism 2 can cushion the circuit and install the back formation, bear minimum tensile stress after making the circuit installation accomplish, the circuit is in natural state this moment, just can guarantee the life of circuit.

As a specific embodiment of the present invention, please refer to fig. 1 to 2, the circuit protection device for electrical engineering further includes a second sliding mechanism 5 disposed at the upper end of the first sliding mechanism 2 and located at the lower end of the supporting mechanism 3, the sliding direction of the second sliding mechanism 5 is perpendicular to the sliding direction of the first sliding mechanism 2, and the pulling force in the circuit length direction after the circuit is installed is adjusted by means of the second sliding mechanism 5. The second sliding mechanism 5 is used for buffering the tensile stress in the length direction of the line, and the direction of the tensile stress borne by the first sliding mechanism 2 is perpendicular to each other, so that the tensile stress of the line can be buffered and adjusted in two directions, and the tensile stress is not borne by the line after the line is installed, so that the service life of the line is ensured.

As a specific embodiment of the circuit protection device for electrical engineering provided by the present invention, please refer to fig. 1 to 2, the base 1 includes a bottom plate 11, a connecting member 12 and a buffer base 13, the bottom plate 11 is a rectangular plate-shaped structure; a plurality of connecting pieces 12 are arranged on the side end of the bottom plate 11 and used for connecting the ground or a building; the buffer seat 13 is a plurality of, all locates the bottom of bottom plate 11 for the pressure of buffering effect on the bottom plate 11. If the line is installed in the trench, the base 1 is installed on the ground or on the side of the bottom in the trench, in short, the bottom plate 11 can be fixed through the connecting piece 12, the pressure is buffered through the buffer seat 13, the pressure acting on the line becomes the buffer force, the line is not damaged and extruded, and the line is ensured to be intact.

Specifically, the connecting member 12 is a bolt or the like, and can achieve the function of fastening connection.

As a specific implementation manner of the line protection device for electrical engineering provided by the present invention, please refer to fig. 1 to 2, the first sliding mechanism 2 includes a plurality of first sliding rails 21 and telescopic columns 22, the first sliding rails 21 are all arranged along the length direction of the base 1, and the plurality of first sliding rails 21 are arranged in parallel; the telescopic column 22 is a plurality of, and the bottom is equipped with first slider 23, and equal sliding connection can slide along first slide rail 21 on first slide rail 21, and telescopic column 22 is used for supporting second sliding mechanism 5, and telescopic column 22 can stretch out and draw back in the base 1 direction of height to be used for the buffering to act on the pressure on second sliding mechanism 5. Flexible post 22 slides on first slide rail 21, guarantees to cushion the horizontal pressure that acts on flexible post 22, and flexible post 22 is vertical flexible simultaneously, also can vertical buffering act on the pressure on flexible post 22, like this through setting up first slide rail 21 and flexible post 22, can guarantee to act on horizontal pulling force and vertical pressure on the circuit after the circuit installation, makes the circuit accomplish harmless, extension circuit life.

Specifically, the two ends of the first slide rail 21 are provided with the limiting members, so that the sliding effect of the telescopic column 22 can be ensured, and the first slide rail 21 cannot slip off. The number of the telescopic columns 22 is four.

As a specific embodiment of the line protection device for electrical engineering provided in the present invention, please refer to fig. 1 to 2, the second sliding mechanism 5 includes a supporting platform 51, a second sliding rail 52 and a supporting column 53, the supporting platform 51 is disposed at the upper end of the plurality of telescopic columns 22; the plurality of second slide rails 52 are arranged along the width direction of the base 1 and are perpendicular to the arrangement direction of the first slide rails 21, and the plurality of second slide rails 52 are arranged in parallel; the number of the supporting columns 53 is two, the bottom ends of the supporting columns are provided with second sliding blocks 54 which are connected to the second sliding rails 52 in a sliding mode, and the supporting columns 53 are used for supporting the supporting mechanism 3. The supporting table 51 is horizontally arranged at the upper end of the telescopic column 22 and used for supporting the second sliding rail 52, and the supporting column 53 supports the supporting mechanism 3 and the circuit, so that the supporting column 53 can slide on the second sliding rail 52, and the fact that the pulling force on the circuit can be adjusted is guaranteed.

Specifically, the upper end of support column 53 is convex structure, with the shape looks adaptation of supporting mechanism 3, can conveniently pack into the circuit.

As a specific embodiment of the circuit protection device for electrical engineering provided by the present invention, please refer to fig. 1 to 2, the supporting mechanism 3 includes a supporting plate 31 and a buffer plate 32, the supporting plate 31 is arc-shaped and is fixedly connected to the upper ends of the plurality of supporting columns 53 for supporting the circuit for electrical engineering, and the radian of the supporting plate 31 is matched with the outer arc radian of the circuit; the buffer plate 32 is arc-shaped and lined at the bottom of the inner side of the bearing plate 31 for buffering the pressure acting on the bearing plate 31. The limit portion of bearing board 31 and the upper end shape looks adaptation of support column 53 form the curve shape, conveniently pack into the circuit like this, and on the buffer board 32 was arranged in to the circuit, the flexible butt of circuit avoided the circuit to contact with the rigidity of bearing board 31 on buffer board 32, received the extrusion force when the circuit, avoided the circuit to damage.

Specifically, the buffer board 32 is made of buffer cotton or buffer pad, and is a flexible supporting circuit.

As a specific embodiment of the line protection device for electrical engineering provided in the present invention, please refer to fig. 1 to 2, the clamping mechanism 4 includes a clamping plate 41, a locking member 42 and a spring member 43, the clamping plate 41 is arc-shaped and encloses a cavity for placing a line with the supporting plate 31, one end of the clamping plate 41 is hinged to one supporting column 53, the other end is detachably connected to another supporting column 53, after the clamping plate 41 is detached from the supporting column 53, the line can be placed in the cavity between the clamping plate 41 and the supporting plate 31; the locking piece 42 is arranged at one end, opposite to the hinged end, of the clamping plate 41 and is detachably connected with the supporting column 53, and the locking piece 42 is used for locking the clamping plate 41 to the supporting column 53; the plurality of spring members 43 are provided inside the holding plate 41, and the spring members 43 serve to buffer the pressing force applied to the holding plate 41. The circuit is clamped by the clamping plate 41, the mounting stability of the circuit is guaranteed, the size of a cavity enclosed between the clamping plate 41 and the bearing plate 31 can be adjusted by means of the locking piece 42, and therefore the clamping plate is suitable for mounting and clamping circuits with different diameters or different sectional areas, the clamping plate 41 can be locked on the supporting column 53 by the locking piece 42, the pressure acting on the clamping plate 41 can be buffered by the spring piece 43, the pressure can not be transmitted to the circuit or can be buffered, and therefore extrusion or abrasion of the circuit can be reduced.

As a specific implementation manner of the line protection device for electrical engineering provided in the present invention, please refer to fig. 1 and 3, the telescopic column 22 includes a column 221, a sleeve 222 and a lifting column 223, the first slider 23 is fixedly disposed on the lower end surface of the column 221, and the column 221 can slide along the first slide rail 21 by means of the first slider 23; the sleeve 222 is fixedly arranged at the upper end of the column body 221, a first spring 224 is arranged at the bottom in the sleeve 222, a clamping groove is formed in the inner wall of the sleeve 222, and a second spring 225 is arranged in the clamping groove; the lifting column 223 is inserted in the sleeve 222, the bottom end of the lifting column 223 is fixedly connected with the first spring 224, the upper end of the lifting column 223 is a free end, the lifting column 223 can stretch out and draw back along the vertical direction by means of the first spring 224, the upper end of the lifting column 223 is used for fixedly connecting the second sliding mechanism 5, the outer side of the lower end of the lifting column 223 is provided with a limiting block 226, the lower end of the limiting block 226 is fixedly connected with the second spring 225, and the sliding range of the lifting column 223 in the sleeve 222 is limited by means of the limiting block 226. The telescopic column 22 ensures that the pressure of the buffer line in the vertical direction is buffered, so that the line cannot bear larger pressure suddenly, the buffer function is achieved, the line is prevented from directly suffering pressure and loss, and the circuit is ensured to be intact.

As a specific implementation manner of the line protection device for electrical engineering provided by the present invention, please refer to fig. 1 to 2, the buffer seat 13 includes a compression spring 131 and a flexible sleeve 132, one end of the compression spring 131 is fixedly disposed at the bottom end of the bottom plate 11, the other end is a free end, and the compression spring 131 is vertically disposed; the flexible sleeve 132 is sleeved on the pressure spring 131 and used for wrapping and sealing the pressure spring 131, the upper end of the flexible sleeve 132 is fixedly connected with the bottom plate 11, and the flexible sleeve 132 is also compressed in the compression process of the pressure spring 131. When the connecting member 12 is in a movable connection state, that is, the distance between the bottom plate 11 and the ground or the building is changeable, after the bottom plate 11 receives the extrusion force, the extrusion force can be buffered through the buffer seat 13, and the compression spring 131 can bear a certain pressure to slow down the extrusion force borne by the line.

As a specific embodiment of the circuit protection device for electrical engineering, please refer to fig. 1 to 2, be equipped with flame retardant coating 6 on the up end of grip block 41, flame retardant coating 6 bonds on the up end of grip block 41, and flame retardant coating 6 is used for preventing fires.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A line protection device for electrical engineering, characterized by comprising:

the base is used for connecting the ground or a building;

the first sliding mechanism is arranged at the upper end of the base and can slide along the length direction of the base;

the bearing mechanism is arranged at the upper end of the first sliding mechanism and used for bearing the circuit for electrical engineering; and

the clamping mechanism is arranged at the upper end of the bearing mechanism and used for clamping the line in the direction perpendicular to the length direction of the line, the sliding direction of the first sliding mechanism is perpendicular to the length direction of the line, and the pulling force of the line in the direction perpendicular to the length direction of the line after being installed is adjusted by means of the first sliding mechanism.

2. The wire protection device for electrical engineering according to claim 1, further comprising a second sliding mechanism provided at an upper end of the first sliding mechanism and located at a lower end of the supporting mechanism, wherein a sliding direction of the second sliding mechanism is perpendicular to a sliding direction of the first sliding mechanism, and a tensile force in a length direction of the wire after the wire is mounted is adjusted by means of the second sliding mechanism.

3. A line protection device for electrical engineering according to claim 1, wherein said base comprises:

the bottom plate is of a rectangular plate-shaped structure;

the connecting pieces are arranged on the side ends of the bottom plate and used for connecting the ground or a building; and

the buffer seat is a plurality of, all locates the bottom of bottom plate, the buffering acts on pressure on the bottom plate.

4. A line protection device for electrical engineering according to claim 2, wherein said first sliding mechanism comprises:

the first sliding rails are arranged in parallel along the length direction of the base; and

the telescopic columns are multiple, the bottom ends of the telescopic columns are provided with first sliding blocks which are connected to the first sliding rails in a sliding mode and can slide along the first sliding rails, the telescopic columns are used for supporting the second sliding mechanisms and can stretch in the height direction of the base and buffer pressure acting on the second sliding mechanisms.

5. A line protection device for electrical engineering according to claim 4, wherein said second slide mechanism comprises:

the supporting table is arranged at the upper ends of the telescopic columns;

the plurality of second sliding rails are arranged along the width direction of the base and are vertical to the arrangement direction of the first sliding rails, and the plurality of second sliding rails are arranged in parallel; and

the supporting columns are two, the bottom ends of the supporting columns are provided with second sliding blocks which are connected to the second sliding rails in a sliding mode, and the supporting columns are used for supporting the bearing mechanism.

6. A line protection device for electrical engineering according to claim 5, wherein said holding mechanism comprises:

the supporting plate is arc-shaped, is fixedly connected to the upper ends of the supporting columns and is used for supporting the circuit for electrical engineering, and the radian of the supporting plate is matched with the radian of an outer arc of the circuit; and

the buffer plate is arc-shaped, is lined at the bottom of the inner side of the bearing plate and buffers pressure acting on the bearing plate.

7. A line protection device for electrical engineering according to claim 6, wherein said clamping mechanism comprises:

the clamping plate is arc-shaped, a cavity for placing a circuit is defined by the clamping plate and the bearing plate, one end of the clamping plate is hinged with one supporting column, the other end of the clamping plate is detachably connected with the other supporting column, and the circuit can be placed in the cavity between the clamping plate and the bearing plate after the clamping plate is detached from the supporting columns;

the locking piece is arranged at one end, opposite to the hinged end, of the clamping plate and detachably connected with the supporting column, and the locking piece is used for locking the clamping plate to the supporting column; and

the spring part, it is a plurality of, all locate the inboard of grip block, the spring part buffering acts on the pressure on the grip block.

8. A line protection device for electrical engineering as defined in claim 4, wherein said telescopic column comprises:

the first sliding block is fixedly arranged on the lower end face of the column body, and the column body can slide along the first sliding rail by means of the first sliding block;

the sleeve is fixedly arranged at the upper end of the column body, a first spring is arranged at the bottom in the sleeve, a clamping groove is formed in the inner wall of the sleeve, and a second spring is arranged in the clamping groove; and

the lifting column is inserted into the sleeve, the bottom end of the lifting column is fixedly connected with the first spring, the upper end of the lifting column is a free end, the lifting column can stretch out and draw back along the vertical direction by means of the first spring, the upper end of the lifting column is fixedly connected with the second sliding mechanism, a limiting block is arranged on the outer side of the lower end of the lifting column, the lower end of the limiting block is fixedly connected with the second spring, and the sliding range of the lifting column in the sleeve is limited by means of the limiting block.

9. A line protection device for electrical engineering according to claim 3, wherein said buffer base comprises:

one end of the pressure spring is fixedly arranged at the bottom end of the bottom plate, the other end of the pressure spring is a free end, and the pressure spring is vertically arranged; and

the flexible sleeve is sleeved on the pressure spring and used for wrapping and sealing the pressure spring, the upper end of the flexible sleeve is fixedly connected with the bottom plate, and the flexible sleeve is also compressed in the compression process of the pressure spring.

10. A line protection device for electrical engineering according to claim 7, wherein a fire-proof layer is provided on the upper end surface of the clamping plate, the fire-proof layer is bonded to the upper end surface of the clamping plate, and the fire-proof layer is used for fire protection.