CN219366069U - Safety protection device for breaking U-shaped shed cable clamping bolt - Google Patents

Abstract

The utility model provides a safety device that U type canopy card cable bolt breaks, goes up clamping piece and lower clamping piece through first bolted connection, including connecting the curb plate at last clamping piece and lower clamping piece both sides respectively, curb plate fixedly connected with first cardboard, second cardboard and the third cardboard that are parallel to each other, go up the clamping piece and be located first cardboard with between the second cardboard, the clamping piece is located down the second cardboard with between the third cardboard, first bolt passes first cardboard second cardboard with the third cardboard. The safety protection device for breaking the U-shaped shed cable clamping bolt provided by the utility model has the advantages that the tensile strength and impact resistance of the first bolt are greatly improved, the possibility that the first bolt is broken or even broken out to hurt people due to larger stress on the first bolt is reduced, and even if the first bolt is broken, the metal bracket is not immediately disassembled, so that a worker can repair for a certain buffer time.

Description

Safety protection device for breaking U-shaped shed cable clamping bolt

Technical Field

The utility model relates to the technical field of mining equipment, in particular to a safety protection device for breaking a U-shaped shed cable clamping bolt.

Background

The U-shaped shed support is a common support mode in coal mine excavation roadways, and is characterized in that a plurality of sections of U-shaped sheds are mutually overlapped and fastened into a whole by clamping cables to form an arch-shaped support, and the arch-shaped support is fixed in the roadway and plays a supporting role on surrounding rocks of the roadway so as to achieve the purpose of support.

The U-shaped shed clamping plate type cable clamp consists of two cable clamping plates, a cable clamping bolt and a cable clamping nut, wherein the two cable clamping plates and the bolt are assembled, the lap joint of the U-shaped shed is clamped by the two cable clamping plates and the bolt, and the U-shaped shed clamping plate type cable clamp is locked and fixed into a whole by the nut to form a metal bracket. After the metal support is erected on the roadway, the pressure of surrounding rock of the roadway can be gradually increased along with the extension of the service time, the pressure of surrounding rock of the roadway, which is borne by the metal support, can be gradually increased, the locking force of the cable clamping plate is increased along with the increase of the pressure of surrounding rock of the roadway, which is borne by the metal support, the tensile force borne by the cable clamping bolt is increased by times, the cable clamping bolt is broken, the broken rod body can be ejected into the roadway at a high speed, personal injury accidents can be caused, and the metal support can be disintegrated and the roadway collapse can be caused under extreme conditions.

Disclosure of Invention

The utility model aims to solve the problem of low tensile strength of a cable clamping bolt in the prior art, and provides a safety protection device for breaking a U-shaped shed cable clamping bolt.

As the safety protection device for breaking the U-shaped shed cable clamping bolt, the utility model is further optimized: the two side plates are connected through a steel wire rope.

As the safety protection device for breaking the U-shaped shed cable clamping bolt, the utility model is further optimized: the side plates are provided with connecting channels, the steel wire ropes penetrate through the connecting channels, and two ends of the steel wire ropes are fixed through steel wire rope clamps respectively.

As the safety protection device for breaking the U-shaped shed cable clamping bolt, the utility model is further optimized: the bolt head of the first bolt is positioned below the third clamping plate, a nut coaxial with the first bolt is arranged above the first clamping plate, and the first bolt is connected with the nut.

As the safety protection device for breaking the U-shaped shed cable clamping bolt, the utility model is further optimized: the pad is fixedly connected to one surface of the first clamping plate, which is contacted with the upper clamping piece, and one surface of the third clamping plate, which is contacted with the lower clamping piece.

As the safety protection device for breaking the U-shaped shed cable clamping bolt, the utility model is further optimized: the gasket is provided with a plurality of through holes, and two gaskets are respectively connected with the first clamping plate and the third clamping plate through a plurality of second bolts.

As the safety protection device for breaking the U-shaped shed cable clamping bolt, the utility model is further optimized: the second clamping plate is made of rubber.

Has the beneficial effects of.

1. According to the utility model, the two sides of the upper clamping piece are respectively inserted between the first clamping plates and the second clamping plates of the two side plates, the two sides of the lower clamping piece are respectively inserted between the second clamping plates and the third clamping plates of the two side plates, the first bolt is rotated to sequentially pass through the third clamping plates, the second clamping plates and the first clamping plates, and then the nut and the first bolt are screwed, so that the tensile strength and the impact resistance of the first bolt are greatly improved, and the possibility that the first bolt is broken or even is broken out to hurt people due to larger pressure of the first bolt is reduced;

2. according to the utility model, the steel wire rope is added, the steel wire rope penetrates through the connecting channel to connect the two side plates, and the two ends of the steel wire rope are fixed through the steel wire rope clamps, so that even if the first bolt is broken, the metal bracket can not be immediately disassembled, and a worker is trimmed for a certain buffer time.

Drawings

FIG. 1 is a schematic diagram of the structure of a side plate of a U-shaped shed cable clamping bolt breaking safety protection device connected with an upper clamping piece and a lower clamping piece;

FIG. 2 is a schematic diagram of a side plate of a safety protection device with broken U-shaped shed cable clamping bolts;

FIG. 3 is a schematic structural view of a gasket of a safety device with broken U-shaped shed clamping cable bolts connected with a third clamping board;

description of the drawings: 1. the clamping piece comprises an upper clamping piece, a lower clamping piece, a 3, a side plate, a 4, a first clamping plate, a 5, a second clamping plate, a 6, a third clamping plate, a 7, a first bolt, a 8, a nut, a 9, a connecting channel, a 10, a steel wire rope, a 11, a steel wire rope clamp, a 12, a gasket, a 13, a through hole, a 14 and a second bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and fig. 2, a safety protection device for breaking a U-shaped shed cable-clamping bolt is provided, the upper clamping piece 1 and the lower clamping piece 2 are connected through a first bolt 7, the safety protection device comprises side plates 3 respectively connected to two sides of the upper clamping piece 1 and the lower clamping piece 2, the side plates 3 are fixedly connected with first clamping plates 4, second clamping plates 5 and third clamping plates 6 which are parallel to each other, the upper clamping piece 1 is located between the first clamping plates 4 and the second clamping plates 5, the lower clamping piece 2 is located between the second clamping plates 5 and the third clamping plates 6, coaxial screw holes are respectively formed in the upper clamping piece 1, the lower clamping plates 2, the first clamping plates 4, the second clamping plates 5 and the third clamping plates 6 respectively penetrate through the first clamping plates 4, the second clamping plates 5 and the third clamping plates 6 on two sides of the upper clamping pieces 1 and the lower clamping pieces 2, so that the tensile strength and the impact resistance of the first bolt 7 are greatly improved, and the possibility that the first bolt 7 breaks or even breaks due to the first bolt 7 is greatly damaged is reduced.

Even if the first bolt 7 is broken due to overlarge stress of the metal bracket with the extremely individual position, the first bolt 7 cannot be immediately broken out due to the fact that the screw holes are formed in the upper clamping piece 1, the lower clamping piece 2, the first clamping plate 4, the second clamping plate 5 and the third clamping plate 6, so that accidents of hurting people and even disassembling the metal bracket cannot occur.

If the first bolt 7 breaks, the connection between the first clamping plate 4, the second clamping plate 5 and the third clamping plate 6 and the upper clamping plate 1 and the lower clamping plate 2 is loosened, so that a connecting channel 9 is formed in the side plates 3, a steel wire rope 10 penetrates through the connecting channel 9 to connect the two side plates 3, two ends of the steel wire rope 10 are fixed through the steel wire rope clamps 11, and even if the first bolt 7 breaks, the metal support cannot be disassembled, and a certain buffering time is reserved for workers.

The bolt head of first bolt 7 is located the below of third cardboard 6, and the top of first cardboard 4 is equipped with the nut 8 coaxial with first bolt 7, and first bolt 7 is connected with nut 8, makes the connection of first cardboard 4, second cardboard 5 and third cardboard 6 and last clamping piece 1 and lower clamping piece 2 more fastening, can install the protection nut that prevents that nut 8 from collapsing out in the outside of nut 8, prevents that nut 8 from collapsing out and hurting the accident of people from appearing.

One side of the first clamping plate 4, which is contacted with the upper clamping plate 1, and one side of the third clamping plate 6, which is contacted with the lower clamping plate 2, are fixedly connected with gaskets 12, and the gaskets 12 adopt thickened rubber cushion blocks, so that the connection between the first clamping plate 4, the upper clamping plate 1 and the third clamping plate 6, which is lower clamping plate 2, is more fastened, and the thickened rubber cushion blocks can play roles of shock absorption, skid resistance, noise reduction and wear resistance.

The gasket 12 is provided with a plurality of through holes 13, and two gaskets 12 are connected with the first clamping plate 4 and the third clamping plate 6 through a plurality of second bolts 14 respectively, in this embodiment, as shown in fig. 3, four through holes are formed in four corners of the two gaskets 12, and the two gaskets 12 are connected with the first clamping plate 4 and the third clamping plate 6 through four second bolts 14 respectively, so that the two gaskets 12 are connected with the first clamping plate 4 and the third clamping plate 6 more tightly respectively, and the separation of the gaskets 12 from the first clamping plate 4 and the third clamping plate 6 is prevented.

Because the second clamping plate 5 is located between the upper clamping piece 1 and the lower clamping piece 2, the distance between the upper clamping piece 1 and the lower clamping piece 2 is not fixed, and therefore the second clamping plate 5 is made of rubber, the thickness of the second clamping plate 5, such as a high-elastic rubber plate, can be changed, and the novel clamping plate is firm, wear-resistant and durable.

The use method of the safety protection device for breaking the U-shaped shed cable clamping bolt is as follows.

Firstly, two sides of an upper clamping piece 1 are respectively inserted between a first clamping plate 4 and a second clamping plate 5 of two side plates 3, and two sides of a lower clamping piece 2 are respectively inserted between the second clamping plate 5 and a third clamping plate 6 of two side plates 3; then, the wire ropes 10 are respectively passed through the connecting channels 9 on the side plates 3 at both sides of the upper and lower clips 1 and 2, and both ends of the wire ropes 10 are respectively fixed by the wire rope clips 11; next, the first bolt 7 is turned to pass through the third clamping plate 6, the second clamping plate 5 and the first clamping plate 4 in sequence; finally, the nut 8 is screwed with the first bolt 7.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The utility model provides a safety device that U type canopy card cable bolt breaks, goes up clamping piece (1) and is connected its characterized in that through first bolt (7) with lower clamping piece (2): including connecting curb plate (3) at last clamping piece (1) and lower clamping piece (2) both sides respectively, curb plate (3) fixedly connected with first cardboard (4), second cardboard (5) and third cardboard (6) that are parallel to each other, go up clamping piece (1) and be located between first cardboard (4) and second cardboard (5), lower clamping piece (2) are located between second cardboard (5) and third cardboard (6), first bolt (7) pass first cardboard (4), second cardboard (5) and third cardboard (6).

2. The safety device for breaking a U-shaped shed cable-clamping bolt according to claim 1, wherein: the two side plates (3) are connected through a steel wire rope (10).

3. The safety device for breaking the U-shaped shed cable-clamping bolt according to claim 2, wherein: the side plates (3) are provided with connecting channels (9), the steel wire ropes (10) penetrate through the connecting channels (9), and two ends of the steel wire ropes (10) are fixed through steel wire rope clamps (11) respectively.

4. The safety device for breaking a U-shaped shed cable-clamping bolt according to claim 1, wherein: the bolt head of the first bolt (7) is located below the third clamping plate (6), a nut (8) coaxial with the first bolt (7) is arranged above the first clamping plate (4), and the first bolt (7) is connected with the nut (8).

5. The safety device for breaking a U-shaped shed cable-clamping bolt according to claim 1, wherein: one side of the first clamping plate (4) contacted with the upper clamping piece (1) and one side of the third clamping plate (6) contacted with the lower clamping piece (2) are fixedly connected with gaskets (12).

6. The safety device for breaking a U-shaped shed cable-clamping bolt according to claim 5, wherein: the gasket (12) is provided with a plurality of through holes (13), and two gaskets (12) are respectively connected with the first clamping plate (4) and the third clamping plate (6) through a plurality of second bolts (14).

7. The safety device for breaking a U-shaped shed cable-clamping bolt according to claim 1, wherein: the second clamping plate (5) is made of rubber.