Underground high-place operation safety rope fixing device

Abstract

The utility model belongs to the field of safety operation, and relates to an underground high-place operation safety rope fixing device which comprises a tubular part, a rope fixing device and a rope fixing device, and the cross section of the tubular part is of an arc-shaped structure which is a major arc; one end of the tubular part is an embedded end, and the other end of the tubular part is a hanging end; the pipe ring is mounted on the tubular part and is close to the hanging end; a mounting hole is formed in the middle of the supporting plate, and a safety opening hanging hole is formed in the edge of the supporting plate; wherein the supporting plate is installed at the hanging end through the installation hole, and the outer diameter of the pipe ring is larger than the diameter of the installation hole. The diameter of the tubular piece is larger than the inner diameter of the pipe ring. The device has the advantages of being convenient to install, low in cost and high in safety coefficient.

Description

Technical Field

[0001] The utility model belongs to the field of safe operation and relates to a fixing device for a safety rope for high-altitude operation in a mine shaft. Background Art

[0002] The national standard GB / T 3608-2008 "Classification of High-altitude Operations" stipulates that high-altitude operation is defined as: "An operation carried out at a height of 2 m or more above the reference plane of the falling height (3.2) where there is a possibility of falling." According to this regulation, in various industries, combined with their respective operation characteristics, there are many styles and types of safety rope suspension devices or safety rope suspension points. In metal and non-metal mines, the scope of high-altitude operations is quite extensive, such as operations at the ore chute opening, operations on the closed wall of the goaf, operations at the ventilation shaft opening, etc.; due to the particularity of metal and non-metal mines and the limitations of operating conditions, the fixing device for the safety rope of high-altitude operations is often selected according to the on-site conditions.

[0003] Currently, it is adopted that the safety rope suspension point is suspended on round steel (insert the round steel into the hole drilled in the rock wall with a drill) or choose the method with a rope head and a king post (high cost and this is mainly used for the anchor point of hoisting equipment or the anchor point of hoisting production water pipes), and there is also the use of a round-ring expansion screw (15 cm in length) as the safety rope suspension point. The above methods as the safety rope anchor points cannot ensure the safety of high-altitude operation personnel and some have higher costs. Content of the Utility Model

[0004] This application provides a fixing device for a safety rope for high-altitude operation in a mine shaft, which has the characteristics of convenient installation, low cost, and high safety factor.

[0005] To achieve the above technical purpose, the technical solution adopted in this application is that a fixing device for a safety rope for high-altitude operation in a mine shaft includes

[0006] a tubular member, whose cross-section is arc-shaped, and the arc structure is a major arc; one end of the tubular member is a buried end and the other end is a suspension end;

[0007] a pipe ring, installed on the tubular member and adjacent to the suspension end;

[0008] a support plate, with an installation hole at the middle position and a safety port suspension hole at the edge position;

[0009] wherein, the support plate is installed on the buried end of the tubular member through the installation hole;

[0010] wherein, the outer diameter of the pipe ring is larger than the diameter of the installation hole; the diameter of the tubular member is larger than the inner diameter of the pipe ring.

[0011] As an improved technical solution of the present application, the length of the tubular member is not less than 500 mm.

[0012] As an improved technical solution of the present application, the diameter of the tubular member is not less than 42.5 mm.

[0013] As an improved technical solution of the present application, the material used for the tubular member is high-strength steel pipe.

[0014] As an improved technical solution of the present application, one side of the support plate is warped, and the warped surface is defined as the warped side; the safety port suspension hole is located on the warped side.

[0015] As an improved technical solution of the present application, the distance between the pipe ring and the end of the suspension end is 25 mm.

[0016] Beneficial effects

[0017] By designing the cross-section of the tubular member as an arc structure instead of a common circular structure, it is convenient to drive the tubular member into a drill hole with a diameter smaller than the diameter of the tubular member, so as to conveniently utilize the friction force between the tubular member and the drill hole to improve the reliability and stability of the device.

[0018] The function of the pipe ring is to ensure the tension of the high-strength steel pipe and not to deform when pulled by an external force (to ensure the friction between the tubular member and the hole), and to ensure the tension of the high-strength pipe; at the same time, the pipe ring can fix the support plate and make it fit against the rock wall.

[0019] By using the support plate and arranging a safety port suspension hole at the edge of the support plate, that is, staggering the force application point of the safety port suspension hole from the axial direction of the tubular member, it is ensured that the acting force on the safety port suspension hole can be partially dispersed on the support plate and transmitted to the surrounding rock wall through the support plate, and only a weak acting force acts on the axial direction of the tubular member.

[0020] The support plate is installed at the buried end of the tubular member, and the pipe ring is fixed at the suspension end of the tubular member. The pipe ring can not only fix the support plate (the support plate is located between the pipe ring and the rock wall), but also disperse the force of the support plate, and ensure that the force application point of the support plate can be located at different positions during use.

[0021] In summary, the device of the present application solves the problem of the suspension point of the safety rope for underground personnel working at heights (such as working at the chute inlet, the closed wall of the goaf, the ventilation shaft inlet, etc.); at the same time, it solves the problem that the high-altitude operation safety rope fixing device is not standardized due to limited conditions at the operation site; the safety rope suspension device (safety rope fixing device) is easy to install, has a low cost, and has a high safety factor. Description of the drawings

[0022] Figure 1 Show a schematic side view structure of the device of the present application;

[0023] Figure 2 Schematic end view of the device of the present application;

[0024] In the figure, 1 is the hanging end; 2 is the pipe ring; 3 is the support plate; 4 is the buried end; 5 is the tubular member; 6 is the safety port hanging hole. Detailed implementation manners

[0025] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0027] Definition:

[0028] The buried end 4 is the end installed into the drilling hole, and the diameter of the installed drilling hole is smaller than the diameter of the tubular member 5.

[0029] The hanging end 1, relative to the buried end 4, refers to one end of the tubular member 5 installed in the drilling hole (buried end 4), and the other end is exposed outside the drilling hole. The end of the exposed section is the hanging end 1.

[0030] The technical principle adopted by the technical solution of the present application is to use a high-strength steel pipe longitudinally slit ), when installed in a drilling hole smaller than the pipe diameter (such as the drilling hole is ), it can apply radial pressure and anti-sliding friction force to the hole wall within the entire length range. Coupled with the supporting force of the support plate, the surrounding rock is in a triaxial stress state, and the safety rope anchor point is stabilized. When used as a safety rope anchor point, it can ensure safety under strong external pulling, and the anchor point will not lose its resistance.

[0031] The following will further explain the technical solution of the present application in conjunction with the drawings.

[0032] A safety rope fixing device for high-altitude work underground includes a tubular member 5, a pipe ring 2, and a support plate 3.

[0033] Among them, for the tubular member 5, its cross-section is arc-shaped, and the arc structure is a major arc; one end of the tubular member 5 is the buried end 4 and the other end is the hanging end 1; in actual use, the tubular member 5 can be a high-strength steel pipe with a slit in the length direction;

[0034] The pipe ring 2 is installed on the tubular member 5 and adjacent to the suspension end; the function of the pipe ring 2 is to ensure the tension of the high-strength steel pipe and not deform when pulled by an external force, ensuring the tension of the high-strength pipe.

[0035] The pallet 3 has a mounting hole in its middle position and a safety port suspension hole 6 at its edge position.

[0036] Among them, the pallet 3 is installed on the suspension end 1 through the mounting hole; the outer diameter of the pipe ring 2 is larger than the diameter of the mounting hole; the diameter of the tubular member 5 is larger than the inner diameter of the pipe ring 2.

[0037] In some embodiments, the length of the tubular member 5 is not less than 500 mm; the cross-section of the tubular member 5 is arc-shaped, and the arc structure is a major arc. Specifically, the angle corresponding to the notch of the major arc is not greater than 45°, aiming to facilitate the quick suspension and convenient removal of the safety buckle.

[0038] In some embodiments, the diameter of the tubular member 5 is not less than 42.5 mm, aiming to increase the friction force and ensure the anchoring force of the safety rope fixing device. It will not deform when pulled by an external force and meets the requirements of a safety rope suspension point. In some embodiments, the material of the tubular member 5 is high-strength steel pipe, aiming to have high shear and tensile strength.

[0039] In some embodiments, one side of the pallet 3 is upturned, and the upturned surface is defined as the upturned side; the safety port suspension hole 6 is located on the upturned side.

[0040] In some embodiments, the distance between the pipe ring 2 and the end of the suspension end 1 is 25 mm, aiming to have high shear and tensile strength near the pipe ring. Being too far will increase the size of the pallet surface, increase the cost, and reduce the shear and tensile strength.

[0041] In some embodiments, the inner diameter of the pipe ring 2 is 42 mm, and the outer diameter is greater than 54 mm.

[0042] Embodiment 1

[0043] A safety rope suspension device (rope fixing device) for high-altitude operations underground mainly consists of a longitudinally slit high-strength steel pipe (tubular member 5), an open-tail welded pipe ring 2 (not weld-penetrated), and a pallet 3 with an opening (mounting hole). It has advantages in terms of installation, low cost, and high safety factor (shear and tensile resistance), and can be used as a rope fixing device for underground personnel's high-altitude edge operations (such as holes, chutes, high altitudes, vertical shafts, and shafts), preventing the risk of falling.

[0044] Select a pipe ring. The inner diameter of the pipe ring 2 is 42 mm, and the outer diameter is greater than 54 mm. Select a support plate 3. The center position of the support plate 3 is provided with a mounting hole, and the diameter of the mounting hole is 43 mm. A safety port suspension hole 6 is opened at one corner of the support plate 3, and at the same time, the corner of the support plate 3 is bent upward to form a raised surface.

[0045] Drill a hole at a suitable position of the high-altitude operation point with a drill. Use a drill with a diameter of the drill, and the depth is 50 cm (blow the rock powder clean with compressed air); insert a high-strength steel pipe with a longitudinal slit (tubular part). The size of the high-strength steel pipe

[0046] Weld the pipe ring 2 to the suspension end 1 of the tubular part 5, and put on the support plate from the buried end 4, and directly drive it into the hole from the buried end 4 with a drill.

[0047] When in use, the safety rope hook can be hung on the safety port suspension hole 6 of the support plate hole.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application, and they should all be covered within the scope of the claims of the present application.

Claims

1. A safety rope fixing device for underground high-altitude operations, characterized in that: It comprises a tubular member, whose cross section is arc-shaped, and the arc-shaped structure is a major arc; one end of the tubular member is a buried end, and the other end is a hanging end; A pipe ring, mounted on the tubular member and adjacent to the hanging end; The support plate has a mounting hole in the middle and a safety hole at the edge; Wherein, the support plate is mounted on the buried end of the tubular member through the mounting hole; Wherein, the outer diameter of the pipe ring is larger than the diameter of the mounting hole; and the diameter of the tubular member is larger than the inner diameter of the pipe ring.

2. A safety rope fixing device for underground high-altitude operations according to claim 1, characterized in that: The length of the tubular member is not less than 500 mm.

3. A safety rope fixing device for underground high-altitude operations according to claim 1, characterized in that: The diameter of the tubular member is not less than 42.5 mm.

4. The safety rope fixing device for underground high-altitude operations according to claim 1 is characterized in that: The material of the tubular member is a high-strength steel pipe.

5. The safety rope fixing device for underground high-altitude operations according to claim 1 is characterized in that: One side of the support plate is tilted, and the tilted side is defined as a tilted surface; the safety opening hanging hole is located on the tilted surface.

6. The safety rope fixing device for underground high-altitude operations according to claim 1 is characterized in that: The distance between the tube ring and the end of the suspension end is 25 mm.

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