Slag pulling-out cylinder for pile foundation construction

Abstract

The utility model discloses a pile foundation construction slag drawing-out barrel which comprises a large-diameter pipe body, a shaped grabbing plate, a first circular ring, a second circular ring, a serial connection circular ring, a short column, a traction connecting piece, a connecting block, a third circular ring, a push-pull rod, a guide hole block, an annular plate and an oil cylinder. The structure design is reasonable, the structure function of grabbing impurities such as pebbles and boulders at the bottom of a pile foundation pit channel is achieved, the grabbing force is large, the bearing strength is high, the hindrance of the impurities such as the pebbles and the boulders to operation of the slag pulling-out structure is greatly reduced, the conical grabbing body structure is formed by combining the annularly-distributed type grabbing plates, gaps are reserved between the type grabbing plates, and the structure is more compact. And therefore, the construction quality of slag extraction is improved.

Description

Technical Field

[0001] The utility model relates to an electric submersible pump for oil production, in particular to a slag removal barrel for pile foundation construction, belonging to the technical field of electric submersible pumps. Background Art

[0002] At present, the commonly used construction equipment for bored piles is the rotary drilling rig. The rotary drilling rig is generally suitable for clay, silt, sand, silty soil, artificial backfill soil and strata containing some pebbles and gravel. For drilling rigs with large torque power heads and automatic internal locking telescopic drill rods, they can adapt to the construction of slightly weathered rock formations. In order to meet the construction requirements, the configuration of the chassis and working device of the rotary drilling rig has the characteristics of large installed power, large output torque, flexibility, multi-function, and high construction efficiency. Since the rotary drilling rig encounters pebbles and boulders during the construction of bored piles, it may cause the drill bit to get stuck. In order to reduce the occurrence of the drill bit getting stuck when the rotary drilling rig is working, the existing rotary drilling rigs often use a slag bucket to clean the pebbles and boulders at the bottom of the pile during the pile foundation construction process to avoid the drill bit of the rotary drilling rig getting stuck and affecting the work efficiency.

[0003] However, the existing slag removal barrel for pile foundation construction is inconvenient to remove slag, and the structural strength of the implementation that allows pebbles, boulders and other impurities to enter the barrel is low, and the impurities such as pebbles and boulders are greatly hindered, which is not conducive to improving the quality of slag removal construction. Utility Model Content

[0004] The purpose of the utility model is to provide a slag removal barrel for pile foundation construction in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a slag removal barrel for pile foundation construction, comprising a large-diameter pipe body, a profiled grab plate, a series of circular rings, a traction connector, a push-pull rod, an elastic short belt, a ring plate and an oil cylinder. The bottom end port of the large-diameter pipe body is fixedly connected to the same series-connected circular ring through short columns distributed in an annular manner. Each second circular ring on the series-connected circular ring is welded and fixed to the middle position of the outer top end of the profiled grab plate, and a first circular ring is welded to the middle part of the inner side surface of the profiled grab plate. The third circular ring on the first circular ring is welded and fixed to one end of the push-pull rod, and the top end of the push-pull rod is connected to the corresponding part of the ring plate located in the large-diameter pipe body through a hinge, and the outer side surface of the ring plate is connected to the three output ends of the oil cylinders distributed in an annular manner.

[0006] Preferably, the gripping plates are in groups of ten, and the ten gripping plates are combined to form a cone-shaped gripping body structure.

[0007] Preferably, the maximum outward rotation angle of the gripping plate is 120°.

[0008] Preferably, the cylinder body portion of the oil cylinder is fixedly connected to a corresponding portion of the inner wall of the large-diameter tube.

[0009] Preferably, the middle portion of the top end port of the large-diameter tube body is fixedly connected to the traction connector via a connecting block.

[0010] Preferably, the traction connection piece is connected to a corresponding part of an external piling equipment.

[0011] Preferably, the push-pull rod is in a Z shape, and the middle portion of the push-pull rod is connected to one end of an elastic short band connected to the inner wall of the large-diameter tube.

[0012] Compared with the prior art, the advantages of the utility model are: it has the structural function of grabbing pebbles, boulders and other impurities at the bottom of the pile foundation tunnel, has a strong grabbing force and high bearing strength, greatly reduces the obstruction of pebbles, boulders and other impurities to the operation of the slag removal structure, and forms a conical grab body structure through the combination of annularly distributed grab plates, and gaps are left between the grab plates to facilitate liquid discharge, thereby improving the quality of slag removal construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 and Figure 2 They are schematic diagrams of the overall structure of the utility model from different viewing angles;

[0015] Figure 3 It is a front view of the overall structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the overall internal structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the distribution and connection of the grab plate of the utility model.

[0018] In the figure: 1, large diameter pipe body; 2, grab plate; 201, first circular ring; 3, second circular ring; 4, series circular ring; 5, short column; 6, traction connecting piece; 7, connecting block; 8, third circular ring; 9, push-pull rod; 10, guide hole block; 11, ring plate; 12, oil cylinder. DETAILED DESCRIPTION

[0019] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying 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 therefore cannot be understood as a limitation on the present invention.

[0022] See also Figure 1-5 As shown, a slag removal barrel for pile foundation construction includes a large diameter pipe body 1, a gripping plate 2, a series ring 4, a traction connector 6, a push-pull rod 9, an elastic short band 10, a ring plate 11 and an oil cylinder 12. The bottom end port of the large diameter pipe body 1 is fixedly connected to the same series ring 4 through a short column 5 distributed in an annular manner, and each second ring 3 on the series ring 4 is welded and fixed to the middle position of the outer top end of the gripping plate 2, and a first ring 201 is welded to the middle part of the inner side surface of the gripping plate 2, and the third ring 8 on the first ring 201 is welded and fixed to one end of the push-pull rod 9, and the top end of the push-pull rod 9 is connected to the corresponding part of the ring plate 11 located in the large diameter pipe body 1 through a hinge, and the outer side surface of the ring plate 11 is connected to the output ends of three oil cylinders 12 distributed in an annular manner.

[0023] The gripping plates 2 are in groups of ten, and the ten gripping plates 2 are combined to form a conical gripping body structure. The gripping plates 2 can rotate outward at a maximum angle of 120°, and the gripping effect is achieved by opening and closing the plurality of gripping plates 2 distributed in an annular manner.

[0024] The cylinder body of the oil cylinder 12 is fixedly connected to the corresponding part of the inner wall of the large diameter tube body 1, and the gripping plate 2 connected via the push-pull rod 9, the third ring 8 and the first ring 201 is in an outward-extended and inward-contracted state by the extension and contraction of the oil cylinder 12.

[0025] The middle part of the top end port of the large diameter pipe body 1 is fixedly connected to the traction connector 6 through a connecting block 7, and the traction connector 6 is connected to the corresponding part of the external piling equipment so as to be connected to the external piling equipment and enter the pile foundation tunnel.

[0026] The push-pull rod 9 is in a Z shape, and the middle part of the push-pull rod 9 is connected to one end of an elastic short elastic band 10 connected to the inner wall of the large-diameter tube body 1. The top of the push-pull rod 9 is connected to the corresponding part of the ring plate 11 located in the large-diameter tube body 1 through a hinge, which helps to form the displacement of the bottom end of the push-pull rod 9 and ensure the normal expansion and contraction of the gripping plate 2.

[0027] When the utility model is in use, the working principle is as follows: when the whole is connected to the external piling equipment through the traction connection piece 6 and enters the pile foundation tunnel, when the profile grab plate 2 expanded outward at the bottom end port of the large-diameter pipe body 1 enters the bottom of the pile foundation tunnel, the ring plate 11 is pulled up by the oil cylinder 12 contraction and combined with the push-pull rod 9 hingedly connected to the ring plate 11, so that the push-pull rod 9 is lifted up, further driving the profile grab plate 2 connected by the push-pull rod 9, the third ring 8 and the first ring 201 to retract inward, and at the same time, the pebbles, boulders and other impurities at the bottom of the pile foundation tunnel are grabbed into the bottom range of the large-diameter pipe body 1, and at the same time, a gap is left between the profile grab plates 2 to facilitate the discharge of liquid;

[0028] To sum up: compared with the existing technology, it has the structural function of grabbing pebbles, boulders and other impurities at the bottom of the pile foundation tunnel, has a strong grabbing force and high bearing strength, which greatly reduces the obstruction of pebbles, boulders and other impurities to the operation of the slag removal structure. A conical grab body structure is formed by combining the annularly distributed grab plates 2, and gaps are left between the grab plates 2 to facilitate liquid discharge, thereby improving the quality of slag removal construction.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A slag removal barrel for pile foundation construction, characterized in that: It comprises a large diameter tube body (1), a gripping plate (2), a series ring (4), a traction connector (6), a push-pull rod (9), an elastic short band (10), a ring plate (11) and an oil cylinder (12); the bottom end port of the large diameter tube body (1) is fixedly connected to the same series ring (4) through a short column (5) distributed in an annular manner; each second ring (3) on the series ring (4) is welded and fixed to the middle position of the outer top end of the gripping plate (2); a first ring (201) is welded to the middle part of the inner side surface of the gripping plate (2); a third ring (8) on the first ring (201) is welded and fixed to one end of the push-pull rod (9); the top end of the push-pull rod (9) is connected to the corresponding part of the ring plate (11) located in the large diameter tube body (1) through a hinge; the outer side surface of the ring plate (11) is connected to the output ends of three oil cylinders (12) distributed in an annular manner.

2. A slag removal barrel for pile foundation construction according to claim 1, characterized in that: The shaped grab plates (2) are arranged in groups of ten, and the ten shaped grab plates (2) are combined to form a cone-shaped grab body structure.

3. A slag removal barrel for pile foundation construction according to claim 1, characterized in that: The maximum angle at which the gripping plate (2) can be turned outward is 120°.

4. A slag removal barrel for pile foundation construction according to claim 1, characterized in that: The cylinder body portion of the oil cylinder (12) is fixedly connected to a corresponding portion of the inner wall of the large-diameter pipe body (1).

5. A slag removal barrel for pile foundation construction according to claim 1, characterized in that: The middle portion of the top end port of the large-diameter tube body (1) is fixedly connected to the traction connection piece (6) via a connection block (7).

6. A slag removal barrel for pile foundation construction according to claim 1, characterized in that: The traction connection piece (6) is connected to a corresponding part of the external piling equipment.

7. A slag removal barrel for pile foundation construction according to claim 1, characterized in that: The push-pull rod (9) is in a Z shape, and the middle portion of the push-pull rod (9) is connected to one end of an elastic short band (10) connected to the inner wall of the large-diameter tube (1).

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