CN202788677U

CN202788677U - Novel rat-hole tube

Info

Publication number: CN202788677U
Application number: CN 201220373434
Authority: CN
Inventors: 周克振
Original assignee: SICHUAN KUNLUN PETROLEUM EQUIPMENT MANUFACTURING Co Ltd
Current assignee: SICHUAN KUNLUN PETROLEUM EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-03-13
Anticipated expiration: 2022-07-31

Abstract

The utility model discloses a novel rat-hole tube to solve problems that drill rods and rat-hole tubes are easy to damage when drill rods are thrown in the prior art. The novel rat-hole tube comprises a tube sleeve, a support tube and a support, wherein the support tube is welded with the bottom of the tube sleeve, the upper end of the support tube stretches into the tube sleeve, the support is arranged in the tube sleeve, the lower end of the support stretches into the support tube, and a spring is sleeved on the support; a top plate is connected to the upper end of the tube sleeve; and a connector is welded to the bottom of the support tube. According to the novel rat-hole tube, the structure is simple, the cost is low, and both the drill rods and the rat-hole tubes can be prevented from being damaged when the drill rods are thrown.

Description

Novel rat-hole scabbard

Technical field

The utility model belongs to the oil-well rig manufacturing field of equipment, specifically the novel rat-hole scabbard of the fixture of oil-well rig.

Background technology

At present, the oil-well rig rat-hole scabbard is to cut into pipe one end open several parts, then is made into taper; during breaking down, drilling rod is dropped in the rat-hole scabbard fast, forms very large impact force; drilling rod is easy to damage, and both has been unfavorable for protecting drilling rod, and this equipment also damages easily simultaneously.

The utility model content

The purpose of this utility model is to provide a kind of novel rat-hole scabbard, and when solving in the prior art breaking down, drilling rod and rat-hole scabbard hold flimsy problem.

To achieve these goals, the technical solution adopted in the utility model is as follows:

Novel rat-hole scabbard comprises pipe box, links to each other with pipe box bottom and arm in the pipe box is stretched in the upper end, is arranged at pipe box inside and lower end and stretches into the interior bearing of arm, is socketed with spring on this bearing.

Further, also be connected with top board on the described pipe box.

Further, also be welded with joint bottom the described arm.

As a kind of preferred, described pipe box bottom shape is the semicircle bulb.

Preferred as another kind, described pipe box becomes 0 °～10 ° with top board.

In addition, described bearing is comprised of plectane and the pipe that is welded in the plectane lower end.

In order better to discharge drilling fluid, the described arm that stretches in the pipe box is provided with through hole.

Compared with prior art, the utlity model has following advantage and beneficial effect:

(1) be socketed with spring on the utility model bearing, during breaking down, drilling rod contacts with bearing, Compress Spring, and its cushioning effect has greatly reduced the damage of impact force to drilling rod, has prolonged the application life of drilling rod;

(2) the utility model pipe box and top board are provided with certain angle, and drilling rod can be slipped in the rat-hole scabbard more smoothly;

(3) weld mutually with arm the utility model pipe box bottom, can be used for fixing spring, prevents that spring from twisting and rocking, and can lead to bearing again;

(4) the utility model arm lower end is provided with joint, can be connected with external pipe, is used for discharging drilling fluid, has avoided drilling fluid to splash everywhere, and the problem of environment pollution;

(5) the utility model is to be socketed on the bearing except spring, and remaining part all is welded as a whole, and need not other connection devices, and is easy to operate;

(6) the utility model is simple in structure, and is with low cost, is easy to promote the use of.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Wherein, the component name that mark is corresponding in the accompanying drawing is called: 1-top board, 2-pipe box, 3-bearing, 4-spring, 5-arm, 6-joint.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples, and embodiment of the present utility model includes but not limited to the following example.

Embodiment

As shown in Figure 1, novel rat-hole scabbard comprises pipe box 2, welds mutually with pipe box 2 bottoms and arm 5 in the pipe box 2 is stretched in the upper end, is arranged at pipe box 2 inside and lower end and stretches into bearing 3 in the arm 5, is socketed with spring 4 on this bearing 3.

In order to make things convenient for drilling rod can enter very smoothly rat-hole scabbard, described pipe box 2 upper ends also are welded with top board 1, and pipe box 2 and 1 one-tenth 0 °～10 ° on top board, and the present embodiment angle is 6 °.

In order to guarantee that drilling fluid can reclaim smoothly, do not cause environment pollution, described arm 5 bottoms also are welded with joint 6; And the described arm 5 that stretches in the pipe box 2 is provided with through hole.

In addition, described pipe box 2 bottom shapes are the semicircle bulb; And described bearing 3 is comprised of plectane and the pipe that is welded in the plectane lower end.

The course of work of this utility model is: when drilling rod is lifted when getting rid of into rat-hole scabbard, because there are angle in top board and sleeve pipe, drilling rod is easy to just enter in the sleeve pipe, the drilling rod head at first contacted with the plectane on bearing top after drilling rod entered sleeve pipe, impact force when bearing is transferred by drilling rod and gravity compressed spring, thereby drilling rod can be got rid of stably into rat-hole scabbard, avoided drilling rod and rat-hole scabbard are caused damage; In addition, in order to guarantee that drilling rod entrained drilling fluid when working can reclaim, do not cause environment pollution, so the upper end at described arm is provided with through hole, the lower end is provided with joint and is used for the equipment such as connecting hose, drilling fluid just can flow out rat-hole scabbard by through hole, is incorporated in the recycling bin by flexible pipe again.

According to above-described embodiment, just can realize well the utility model.

Claims

1. novel rat-hole scabbard, it is characterized in that: comprise pipe box (2), welding and upper end stretch into arm (5) in the pipe box (2) mutually with pipe box (2) bottom, be arranged at pipe box (2) inside and lower end and stretch into bearing (3) in the arm (5), be socketed with spring (4) on this bearing (3).

2. novel rat-hole scabbard according to claim 1 is characterized in that: also be connected with top board (1) on the described pipe box (2).

3. novel rat-hole scabbard according to claim 2 is characterized in that: also be welded with joint (6) bottom the described arm (5).

4. novel rat-hole scabbard according to claim 3, it is characterized in that: described pipe box (2) bottom shape is the semicircle bulb.

5. novel rat-hole scabbard according to claim 4, it is characterized in that: described pipe box (2) becomes 0 °～10 ° with top board (1).

6. each described novel rat-hole scabbard according to claim 1～5 is characterized in that: described bearing (3) is comprised of plectane and the pipe that is welded in the plectane lower end.

7. novel rat-hole scabbard according to claim 6 is characterized in that: the described arm (5) that stretches in the pipe box (2) is provided with through hole.