A drill pipe puller

Abstract

The present application provides a kind of drill pipe pulling device, including pipe pulling seat and pipe pulling fork;The pipe pulling fork includes handle, both sides of one end of the handle are provided with fork rod, the other end is provided with pressing part;The end of the fork rod away from handle is provided with mortise slot;The middle part of two fork rods is connected by bolt, and pressure sleeve is sleeved on the bolt;The pipe pulling seat includes pipe pulling seat body, the both sides of the pipe pulling seat body are provided with mortise matching with the mortise slot;The pipe pulling seat body is also provided with pipe pulling groove for installing impact drill rod.The pipe pulling seat and pipe pulling fork are matched, so that the top end of impact drill rod is in open state when pulling, which facilitates the movement of hose or cable in impact drill rod at the top end of impact drill rod;And pipe pulling seat and pipe pulling fork are arranged on the side of impact drill rod, which can divide the excessive pulling height into multiple sections, reduce the requirements for pulling equipment, and ensure better pulling effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drill rod pulling, in particular to a drill rod pulling device. BACKGROUND

[0002] In the conventional straight push soil and groundwater sampling construction, after the construction of a straight push soil sampling drill assembly is completed, a pipe pulling device is used to pull out the impact drill rod drilled into the ground. When the pipe pulling device is used, a special joint needs to be screwed on the top threaded end of the impact drill rod, and a lifting hook is used to pull the drill rod out of the ground. At this time, the special joint and the impact drill rod form a closed structure.

[0003] Chinese patent CN207795244U, entitled "Straight push soil sampling drill assembly", discloses a straight push soil sampling drill assembly, which comprises an impact handle shaft, an impact inner tube, an impact outer tube, a sampling tube and a drill bit. The sampling tube is connected with the bottom end of the impact inner tube, and the drill bit is connected with the bottom end of the impact outer tube. The impact outer tube is sleeved outside the sampling tube and the impact inner tube connected together. The drill bit is hollow and communicates with the bottom end of the sampling tube. The impact handle shaft is installed at the top end of the impact outer tube. The patent can avoid forming a surface wound, facilitate sampling, and avoid secondary pollution of the sample.

[0004] However, in the process of soil pollution detection and remediation, the impact inner tube and other components need to be replaced by a cable with a detection sensor or a hose that can inject remediation agents. The cable and the hose need to be connected to other equipment outside. The special joint required for pipe pulling cannot be used because it forms a closed structure with the top end of the impact drill rod. SUMMARY

[0005] The present application aims to overcome the deficiencies in the prior art and provide a drill rod pulling device. The pulling seat and the pulling fork are cooperatively sleeved outside the impact drill rod, so that the top end of the impact drill rod is in an open state when the impact drill rod is pulled out, facilitating the movement of the hose or cable in the impact drill rod at the top end of the impact drill rod. The pulling seat and the pulling fork are both arranged on the side of the impact drill rod, which can divide the excessive pulling height into multiple sections for pulling, reducing the requirements for the pulling equipment and ensuring good pulling effect.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A drill rod pulling device comprises a pulling seat and a pulling fork. The pulling fork comprises a handle, two fork rods are arranged on one end of the handle, and a pressing part is arranged on the other end of the handle. A tenon groove is arranged at the end of each fork rod away from the handle.

[0008] The middle parts of the two fork rods are connected by bolts, and a pressing sleeve is sleeved on the bolts.

[0009] The pipe pulling seat comprises a pipe pulling seat body, two sides of the pipe pulling seat body are provided with tenons matched with the tenon grooves; and the pipe pulling seat body is further provided with a pipe pulling groove for mounting the impact drill rod.

[0010] Preferably, the pressing sleeve is provided with an arc surface recess for abutting the impact drill rod.

[0011] Preferably, the pipe pulling groove is in a V-shaped cross section.

[0012] Preferably, the two side surfaces of the pipe pulling groove are both provided with slips.

[0013] Preferably, the tenon groove is an inclined U-shaped groove.

[0014] Preferably, the side of the pipe pulling seat body away from the impact drill rod is connected with a lifting device.

[0015] The present application has the advantages that: the pipe pulling seat and the pipe pulling fork are matched to be sleeved on the outer side of the impact drill rod, so that the top end of the impact drill rod is in an open state when the impact drill rod is pulled out, facilitating the movement of the hose or cable in the impact drill rod at the top end of the impact drill rod; and the pipe pulling seat and the pipe pulling fork are both arranged on the side of the impact drill rod, so that the excessive pulling height can be divided into multiple sections for pulling, reducing the requirements on the pulling equipment and ensuring good pulling effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The figure is a structural schematic diagram of the present application.

[0017] Fig. 2 The figure is a structural schematic diagram of the pipe pulling seat of the present application.

[0018] Fig. 3 The figure is a structural schematic diagram of the pipe pulling fork of the present application.

[0019] In the figure, 1 is a pipe pulling seat, 11 is a pipe pulling seat body, 12 is a tenon, 13 is a pipe pulling groove, 2 is a pipe pulling fork, 21 is a handle, 22 is a tenon groove, 23 is a fork rod, 24 is a pressing sleeve, 25 is a bolt, 26 is an arc surface recess, 27 is a pressing part, 3 is an impact drill rod, and 131 is a slip. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described clearly and completely below in combination with the drawings and embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] For example, Figs. 1 to 3The utility model provides a kind of drill rod pulling device, including pipe pulling seat 1 and pipe pulling fork 2;The pipe pulling fork 2 includes handle 21, both sides of one end of the handle 21 are equipped with fork rod 23, and the other end is equipped with pressing part 27;The end of the fork rod 23 away from the handle 21 is equipped with mortise groove 22;The middle part of two fork rods 23 is connected by bolt 25, and pressing sleeve 24 is sleeved on the bolt 25;

[0022] The pipe pulling seat 1 includes pipe pulling seat body 11, and the pipe pulling seat body 11 is provided with mortise 12 matched with the mortise groove 22 on both sides;The pipe pulling seat body 11 is further provided with pipe pulling groove 13 for installing impact drill rod 3.

[0023] The utility model cooperates the pipe pulling seat 1 and pipe pulling fork 2 to be sleeved on the outside of the impact drill rod 3, so that the top end of the impact drill rod 3 is in an open state when pulling, facilitating the movement of the hose or cable in the impact drill rod 3 at the top end of the impact drill rod 3;Moreover, the pipe pulling seat 1 and pipe pulling fork 2 are arranged on the side of the impact drill rod 3, which can divide the excessive pulling height into multiple sections, reduce the requirements for pulling equipment, and ensure better pulling effect.

[0024] By pressing the pressing part 27, the pipe pulling fork 2 is driven to rotate around the mortise 12, and the pipe pulling groove 13 and the pressing sleeve 24 are tightened around the impact drill rod 3.

[0025] By lifting the pressing part 27, the pipe pulling fork 2 is driven to rotate around the mortise 12, and the pipe pulling groove 13 and the pressing sleeve 24 are loosened around the impact drill rod 3.

[0026] Further, the pressing sleeve 24 is provided with an arc concave 26 for fitting the impact drill rod 3.

[0027] The arc concave 26 can increase the contact area between the pressing sleeve 24 and the impact drill rod 3, increase the friction between the pressing sleeve 24 and the impact drill rod 3, and ensure better pulling effect.

[0028] Further, the cross section of the pipe pulling groove 13 is V-shaped.

[0029] The cross section of the pipe pulling groove 13 is V-shaped, which can increase the contact area between the pipe pulling groove 13 and the impact drill rod 3, thereby increasing the friction between the pipe pulling seat body 11 and the impact drill rod 3, and ensuring better pulling effect.

[0030] Further, the pipe pulling groove 13 is provided with slips 131 on both sides.

[0031] The better increase of the friction force between the pipe pulling seat body 11 and the impact drill rod 3 by the slip 131 ensures better pulling effect.

[0032] Further, the tenon slot 22 is an inclined U-shaped slot.

[0033] The tenon slot 22 adopts a U-shaped slot, that is, the pipe pulling seat 1 and the pipe pulling fork 2 are convenient to disassemble, and when the pulling device is installed, it does not need to be sleeved from the top end of the impact drill rod 3, and the pulling device can be more conveniently assembled at a suitable position; and the inclined U-shaped slot not only can ensure that the pipe pulling seat 1 is not easy to fall off from the pipe pulling fork 2 when the pipe pulling seat 1 and the pipe pulling fork 2 are assembled, but also can ensure that the pipe pulling seat 1 can better drive the pipe pulling fork 2 and the impact drill rod 3 to move upward when the pulling device holds the impact drill rod 3, thereby ensuring better pulling effect.

[0034] Further, the side, away from the impact drill rod 3, of the pipe pulling seat body 11 is connected with a lifting device.

[0035] The working principle of the present application is as follows:

[0036] The present application stops the pipe pulling seat 1 at a suitable position, so that the impact drill rod 3 is in the V-shaped space formed by the slip 131; the tenon slot 22 of the fork rod 23 is aligned with the tenon 12 of the pipe pulling seat body 11, at this time the impact drill rod 3 is between the slip 131 and the pressing sleeve 24; the arc concave 26 on the pressing sleeve 24 is aligned with the outer surface of the impact drill rod 3, and the pressing part 27 of the handle 21 is pressed;

[0037] The arc concave 26 on the pressing sleeve 24 pushes the impact drill rod 3 close to the slip 131, at this time the slip 131 and the pressing sleeve 24 hold the impact drill rod 3; the lifting device drives the pipe pulling seat 1 to move upward, and the impact drill rod 3 is pulled upward; when the impact drill rod 3 is pulled out for a certain distance, the handle 21 is lifted upward, and the impact drill rod 3 is released from the slip 131 and the pressing sleeve 24; at this time, the pipe pulling seat 1 is moved downward until it reaches a suitable position, and then the handle 21 is pressed downward, and the slip 131 and the pressing sleeve 24 hold the impact drill rod 3 again, the pipe pulling seat 1 is moved upward, and the impact drill rod 3 is pulled upward for a certain distance again; the above steps are repeated until the impact drill rod 3 is completely pulled out.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; in addition, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present application and not to limit it, although the present application has been described in detail with reference to examples, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A pipe pulling device, characterized by: The utility model relates to a pipe pulling device, including pipe pulling seat (1) and pipe pulling fork (2), pipe pulling fork (2) includes handle (21), both sides of one end of handle (21) are equipped with fork rod (23), the other end is equipped with press part (27), the one end of fork rod (23) away from handle (21) is equipped with tenon groove (22), the middle part of two fork rod (23) is connected through bolt (25), and is equipped with press sleeve (24) on bolt (25), pipe pulling seat (1) includes pipe pulling seat body (11), both sides of pipe pulling seat body (11) are equipped with the tenon (12) matching with tenon groove (22), pipe pulling seat body (11) still is equipped with pipe pulling groove (13) for installing percussion drill rod (3), Wherein, the press sleeve (24) is equipped with arc surface recess (26) for fitting the percussion drill rod (3) on, the section of pipe pulling groove (13) is V type, two sides in pipe pulling groove (13) are all equipped with slip (131).

2. A pipe puller according to claim 1, characterised in that: The tenon groove (22) is inclined U-shaped groove.

3. The pipe puller of claim 1, wherein: The side of pipe pulling seat body (11) away from the percussion drill rod (3) is connected with lifting device.

Images