Lock catch for hoisting drill rod

Abstract

The utility model provides a lock catch for hoisting a drill rod, which comprises an auxiliary disc, a first lock catch mechanism and a second lock catch mechanism, the first lock catch mechanism and the second lock catch mechanism have the same structure and are symmetrically arranged, one end of the first lock catch mechanism is slidably connected to one side of the auxiliary disc, and the other end of the first lock catch mechanism is slidably connected to the other side of the auxiliary disc. The other end of the first lock catch mechanism is detachably installed on the periphery of the drill rod. The drill rod locking device is simple in structure, high in practicability and high in safety performance, a drill rod can be firmly locked and then hoisted through the first locking mechanism and the second locking mechanism under the assistance of the auxiliary disc, damage to the drill rod is small, meanwhile, the hydraulic lifting rod can adjust the pressing degree of the locking shaft, the problem that the locking shaft is too tight or too loose is solved, safety and reliability are achieved, and the drill rod locking device is suitable for popularization and application. And the rubber pad can reduce mechanical damage and increase friction force, so that the service lives of the drill rod and the lock catch are prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaphragm walls, and particularly relates to a buckle for hoisting drill pipes. Background Art

[0002] For a high-pressure jet grouting pile, a cement slurry is sprayed into a soil layer by a nozzle rotating at a high pressure and mixed with the soil to form a continuously lapped cement solidified body. The construction occupies less land, has less vibration and lower noise, but is prone to environmental pollution and has a higher cost, and is not suitable for special soil masses that cannot solidify the sprayed slurry.

[0003] During the construction process of a high-pressure jet grouting pile, it is necessary to hoist drill pipes. As the depth of the jet grouting pile in the engineering project increases, the volume of the sprayed slurry becomes larger and larger, and the number of required drill pipes is also increasing. In the prior art, when hoisting drill pipes, steel wires or slings need to be tied to the drill pipes. However, the drill pipes are circular, and it is easy for the steel wires or slings to slip and fall off when fixed to the drill pipes. After the drill pipes are untied, they are easy to fall and injure the on-site construction workers, which is very dangerous and there are great safety hazards. Content of the Utility Model

[0004] In view of this, the utility model aims to provide a buckle for hoisting drill pipes to solve the problem of potential safety hazards caused by the easy detachment of drill pipes due to the insecure tying of steel wires or slings in the prior art.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A buckle for hoisting drill pipes includes an auxiliary disc, a first buckle mechanism, and a second buckle mechanism. The first buckle mechanism and the second buckle mechanism have the same structure and are symmetrically arranged. One end of the first buckle mechanism is slidably connected to one side of the auxiliary disc, and the other end of the first buckle mechanism is detachably installed around the drill pipe. One end of the second buckle mechanism is slidably connected to the other side of the auxiliary disc, and the other end of the second buckle mechanism is detachably installed around the drill pipe. The first buckle mechanism includes a sleeve, a connecting shaft, a bearing, a locking shaft, and a hydraulic lifting rod. The inner diameter of the sleeve is larger than the diameter of the drill pipe, and the drill pipe is located inside the sleeve. The connecting shaft is fixedly installed on the sleeve, and a bearing is sleeved around the connecting shaft. One end of the locking shaft is rotatably connected to the outside of the connecting shaft through the bearing, and the other end of the locking shaft is slidably connected to one side of the auxiliary disc. The bottom of the hydraulic lifting rod is hinged to the outer wall of the sleeve, and the top of the hydraulic lifting rod is hinged to the outside of the locking shaft.

[0007] Further, the sleeve includes a sleeve body and connecting fins. The inner diameter of the sleeve body is larger than the diameter of the drill pipe. The drill pipe is located inside the sleeve body. A strip-shaped through hole is provided on the outer wall at one end of the sleeve body. A connecting fin is fixedly installed on each of the two outer walls of the sleeve body, and the two connecting fins are symmetrically arranged. A connecting shaft is provided between the two connecting fins. One end of the connecting shaft is fixedly connected to one connecting fin, and the other end is fixedly connected to the other connecting fin. The bottom of the hydraulic lifting rod is hinged to the outer wall of the sleeve body.

[0008] Further, one end of the locking shaft is provided with a locking end head, and the other end of the locking shaft is provided with a pulley. The pulley is slidably connected to one side of the auxiliary disc. A first through hole is provided on the locking end head. The locking end head is sleeved around the outer periphery of the bearing through the first through hole. The locking end head is embedded in the strip-shaped through hole.

[0009] Further, a pressing rod is provided on the locking end head. The pressing rod is located inside the sleeve body. The pressing rod abuts against the outer periphery of the drill pipe.

[0010] Further, an arc-shaped chute is provided on each of the two sides of the auxiliary disc, and the two chutes are symmetrically arranged. One of the pulleys is slidably connected to the chute. A second through hole is provided at the center of the auxiliary disc.

[0011] Further, a rubber pad is provided at the bottom of the pressing rod, and a rubber pad is provided on the inner wall of the sleeve body. Compared with the prior art, the lock for hoisting a drill pipe of the present invention has the following advantages:

[0012] The lock for hoisting a drill pipe of the present invention has a simple structure, strong practicability and high safety performance. With the assistance of the auxiliary disc, the drill pipe can be firmly locked and then hoisted by the first locking mechanism and the second locking mechanism, and the damage to the drill pipe is very small. At the same time, the hydraulic lifting rod can adjust the pressing degree of the locking shaft, avoiding the problems of over-tightening and over-loosening of the locking shaft, being safe and reliable, being able to adapt to drill pipes of more diameters, and the rubber pads can reduce mechanical damage and increase friction, thereby prolonging the service life of the drill pipe and the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings that form a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0014] Figure 1 is a schematic structural diagram of a lock for hoisting a drill pipe according to an embodiment of the present invention;

[0015] Figure 2Structural schematic diagram of a sleeve of a buckle for hoisting a drill pipe according to an embodiment of the present invention;

[0016] Figure 3 Structural schematic diagram of a locking shaft of a buckle for hoisting a drill pipe according to an embodiment of the present invention;

[0017] Figure 4 Side view schematic diagram of an auxiliary disc of a buckle for hoisting a drill pipe according to an embodiment of the present invention.

[0018] Explanation of reference numerals:

[0019] 1 - Auxiliary disc; 11 - Chute; 12 - Second through hole; 2 - First locking mechanism; 21 - Sleeve; 211 - Sleeve body; 2111 - Strip-shaped through hole; 212 - Connecting wing; 22 - Connecting shaft; 23 - Locking shaft; 231 - Locking end; 2311 - First through hole; 2312 - Pressing rod; 232 - Pulley; 24 - Hydraulic lifting rod; 3 - Second locking mechanism; 4 - Drill pipe. Detailed implementation manners

[0020] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0024] As Figures 1 - 4 shown, a buckle for hoisting drill pipes includes an auxiliary disc 1, a first buckle mechanism 2, and a second buckle mechanism 3. The first buckle mechanism 2 and the second buckle mechanism 3 have the same structure and are symmetrically arranged. One end of the first buckle mechanism 2 is slidably connected to one side of the auxiliary disc 1, and the other end of the first buckle mechanism 2 is detachably installed around the drill pipe 4. One end of the second buckle mechanism 3 is slidably connected to the other side of the auxiliary disc 1, and the other end of the second buckle mechanism 3 is detachably installed around the drill pipe 4. The first buckle mechanism 2 includes a sleeve 21, a connecting shaft 22, a bearing, a locking shaft 23, and a hydraulic lifting rod 24. The inner diameter of the sleeve 21 is larger than the diameter of the drill pipe 4, and the drill pipe 4 is located inside the sleeve 21. The connecting shaft 22 is fixedly installed on the sleeve 21, and a bearing is sleeved around the connecting shaft 22. One end of the locking shaft 23 is rotatably connected to the outside of the connecting shaft 22 through the bearing, and the other end of the locking shaft 23 is slidably connected to one side of the auxiliary disc 1. The bottom of the hydraulic lifting rod 24 is hinged to the outer wall of the sleeve 21, and the top of the hydraulic lifting rod 24 is hinged to the outside of the locking shaft 23. The double-sided locking of the first buckle mechanism 2 and the second buckle mechanism 3 improves the safety of the buckle. The sleeve 21 is used to place the drill pipe 4, the connecting shaft 22 and the bearing assist the locking shaft 23 to press, and the hydraulic lifting rod 24 can adjust the pressing degree of the locking shaft 23 to avoid the problems of the locking shaft 23 being too tight or too loose. It is safe and reliable and can adapt to drill pipes 4 with more diameters. The top end of the hydraulic lifting rod 24 is the lifting end.

[0025] The sleeve 21 includes a sleeve body 211 and connecting fins 212. The inner diameter of the sleeve body 211 is larger than the diameter of the drill pipe 4, and the drill pipe 4 is located inside the sleeve body 211. A strip-shaped through hole 2111 is provided on the outer wall of one end of the sleeve body 211. A connecting fin 212 is fixedly installed on each of the two outer walls of the sleeve body 211, and the two connecting fins 212 are symmetrically arranged. A connecting shaft 22 is provided between the two connecting fins 212. One end of the connecting shaft 22 is fixedly connected to one connecting fin 212, and the other end is fixedly connected to the other connecting fin 212. The bottom of the hydraulic lifting rod 24 is hinged to the outer wall of the sleeve body 211. The sleeve body 211 is used to place the drill pipe 4, and the connecting fins 212 are used to connect the connecting shaft 22, so that the locking shaft 23 presses the drill pipe 4 by connecting the connecting shaft 22 and under the action of the strip-shaped through hole 2111.

[0026] One end of the locking shaft 23 is provided with a locking end 231, and the other end of the locking shaft 23 is provided with a pulley 232. The pulley 232 is slidably connected to one side of the auxiliary disc 1. The locking end 231 is provided with a first through hole 2311. The locking end 231 is sleeved around the bearing through the first through hole 2311, and the locking end 231 is embedded in the strip-shaped through hole 2111.

[0027] The locking end 231 is provided with a pressing rod 2312. The pressing rod 2312 is located inside the sleeve body 211. The pressing rod 2312 abuts against the periphery of the drill pipe 4. The pressing rod 2312 directly contacts and presses the drill pipe 4.

[0028] One side of each of the two sides of the auxiliary disc 1 is provided with a chute 11, and the two chutes 11 are symmetrically arranged. The chute 11 is an arc-shaped chute. One pulley 232 is slidably connected to the chute 11. A second through hole 12 is provided at the center of the auxiliary disc 1. The arc-shaped chute is used to cooperate with the locking shaft 23 to adjust the movement arc generated at one end of the locking shaft 23 when adjusting the tightness, and the second through hole 12 is used to lift the drill pipe 4.

[0029] A rubber pad is arranged at the bottom of the pressing rod 2312, and a rubber pad is arranged on the inner wall of the sleeve body 211. The rubber pad can reduce mechanical damage and increase friction, thereby prolonging the service life of the drill pipe 4 and the lock.

[0030] The working process of a lock for hoisting a drill pipe: The staff places a drill pipe 4 in the first locking mechanism 2 and the second locking mechanism 3. At this time, the drill pipe 4 is located inside the sleeve body 211, and then adjusts the hydraulic lifting rod 24, so that one end of the locking shaft 23 rotates around the connecting shaft 22 as the rotation center, and the other end realizes the angle rotation with the assistance of the arc-shaped chute, so as to press the drill pipe 4 inside the sleeve body 211. When the hydraulic lifting rod 24 descends, the pressing degree of the locking shaft 23 increases, and when the hydraulic lifting rod 24 rises, the pressing degree of the locking shaft 23 decreases. After the pressing degree adjustment is completed, use a hook through the second through hole 12 on the auxiliary disc 1 to safely and stably lift the drill pipe 4.

[0031] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lock buckle for hoisting a drill pipe, characterized in that: The invention comprises an auxiliary disk (1), a first locking mechanism (2), and a second locking mechanism (3); the first locking mechanism (2) and the second locking mechanism (3) have the same structure and are symmetrically arranged; one end of the first locking mechanism (2) is slidably connected to one side of the auxiliary disk (1); the other end of the first locking mechanism (2) can be detachably mounted on the periphery of a drill rod (4); one end of the second locking mechanism (3) is slidably connected to the other side of the auxiliary disk (1); the other end of the second locking mechanism (3) can be detachably mounted on the periphery of a drill rod (4); the first locking mechanism (2) comprises a sleeve (21), a connecting shaft (22), and a bearing , a locking shaft (23) and a hydraulic lifting rod (24), the inner diameter of the sleeve (21) is larger than the diameter of the drill rod (4), the drill rod (4) is located in the sleeve (21), the connecting shaft (22) is fixedly mounted on the sleeve (21), the outer periphery of the connecting shaft (22) is sleeved with a bearing, one end of the locking shaft (23) is rotatably connected to the outer periphery of the connecting shaft (22) through a bearing, the other end of the locking shaft (23) is slidably connected to one side of the auxiliary disk (1), the bottom of the hydraulic lifting rod (24) is hinged to the outer wall of the sleeve (21), and the top of the hydraulic lifting rod (24) is hinged to the outer periphery of the locking shaft (23).

2. A lock buckle for hoisting a drill pipe according to claim 1, characterized in that: The sleeve (21) comprises a sleeve body (211) and a connecting wing (212); the inner diameter of the sleeve body (211) is larger than the diameter of the drill rod (4); the drill rod (4) is located in the sleeve body (211); a strip-shaped through hole (2111) is provided on the outer wall of one end of the sleeve body (211); a connecting wing (212) is fixedly installed on the outer walls of both sides of the sleeve body (211), and the two connecting wings (212) are symmetrically arranged; a connecting shaft (22) is provided between the two connecting wings (212); one end of the connecting shaft (22) is fixedly connected to one connecting wing (212), and the other end is fixedly connected to the other connecting wing (212); the bottom of the hydraulic lifting rod (24) is hinged to the outer wall of the sleeve body (211).

3. A lock buckle for hoisting a drill pipe according to claim 2, characterized in that: A locking end (231) is provided at one end of the locking shaft (23), and a pulley (232) is provided at the other end of the locking shaft (23). The pulley (232) is slidably connected to one side of the auxiliary disk (1). A first through hole (2311) is provided on the locking end (231). The locking end (231) is sleeved to the periphery of the bearing through the first through hole (2311), and the locking end (231) is embedded in the strip through hole (2111).

4. A lock buckle for hoisting a drill pipe according to claim 3, characterized in that: The locking end head (231) is provided with a pressing rod (2312), the pressing rod (2312) is located inside the sleeve body (211), and the pressing rod (2312) abuts against the periphery of the drill rod (4).

5. The lock buckle for hoisting a drill pipe according to claim 3, characterized in that: A slide groove (11) is respectively provided on both sides of the auxiliary plate (1), and the two slide grooves (11) are symmetrically arranged, the slide groove (11) is an arc-shaped slide groove, one of the pulleys (232) is slidably connected to the slide groove (11), and a second through hole (12) is provided at the center of the auxiliary plate (1).

6. A lock buckle for hoisting a drill pipe according to claim 4, characterized in that: A rubber pad is provided at the bottom of the pressing rod (2312), and a rubber pad is provided on the inner wall of the sleeve body (211).

Images