CN2127760Y

CN2127760Y - Bound ring for platic cement tubes

Info

Publication number: CN2127760Y
Application number: CN 91226760
Authority: CN
Inventors: 张顺菊
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-21
Filing date: 1991-10-21
Publication date: 1993-03-03
Anticipated expiration: 2001-10-21

Abstract

The utility model relates to a downhole tool used for a test of the annular space of an oil well, which mainly solves the difficulty that when a well cylinder is askew, an instrument is difficult to enter a well, and the instrument is prevented from wound on an oil pipe. The utility model is characterized in that the utility model is composed of a cylinder body, wherein, a noncentral through hole is arranged on the cylinder body, and the central line of the through hole is in parallel with the axis of the cylinder body; a thick and a thin wall faces of the cylinder body are formed, four symmetrical spiral faces are arranged on the thick wall face, and an anti-winding hole is arranged on a concave platform where the spiral faces are converged together. Thus, the utility model is arranged on the tail end of the oil pipe, which can ensure that the broadest part of the semilunar annular space of an oil casing pipe is kept in one orientation, and the instrument is prevented from wound on the oil pipe.

Description

Bound ring for platic cement tubes

The utility model relates to the effective bunching ring of a kind of plastic cement, particularly a kind ofly can effectively tighten the plastic cement pipe, neither can damage the plastic cement pipe, can not produce the bunching ring through improvement that takes off the loose compact phenomenon again.

Bunching ring used in the prior art as depicted in figs. 1 and 2.A kind of bunching ring 10 shown in Figure 1 be provided with a series of rectangular positioning hole 11(be respectively tiltedly establish arrangement), the adjustment of the bolt of establishing in the utilization 12 is rotated screw thread is advanced in positioning hole 11 seriatim, dwindles the bunching ring bore and plays the effect of tightening to reach.Yet in use, the plastic tube body surface regular meeting that is tightened enters in its positioning hole 11, and causing this to encircle relative to the body surface can't move, and then loses its regulating action, and the body surface is also damaged.Use simultaneously day long afterwards, rectangular hole is easily deformable, and this also causes easily and takes off the tooth phenomenon, cause tighten bad.Shown in Figure 2 then is other one routine bunching ring of the prior art.Two

ring bodies

20,21 about the employing coiled, and the work of the bolt device 22 that is provided with above cooperating is in order to tighten the plastic cement pipe.But the damage that is very easy to embed body during two

ring bodies

20,21 are tightened in using and causes body, this product adjustment stroke is little simultaneously, causes suitable caliber to be limited in scope.

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, proposes a kind ofly can tighten sebific duct effectively and can not damage the plastic cement pipe, also can not take off the bunching ring structure of loose compact simultaneously.

The foregoing invention purpose is achieved by following proposal.This bunching ring includes the bunching ring body, compositions such as left and right sides clamp ring and bolt and nut.The outer end portion of bunching ring body is provided with the location hook of projection, and wherein an end has a other end and then need be provided with several by using; Left and right sides clamp ring is provided with the location hook of projection respectively at the inboard appropriate position of arcuation ring body, and the knuckle place that makes progress on clamp ring can set up stiffening rib.

Below with reference to a most preferred embodiment and accompanying drawing thereof the utility model is further described.

Fig. 1 is a kind of stereogram of prior art,

Fig. 2 is the stereogram of another kind of prior art,

Fig. 3 is the exploded perspective view according to an embodiment of the present utility model,

Fig. 4 is a middle plan view of making to have broken section embodiment illustrated in fig. 3.

According to the effective bunching ring of a kind of plastic cement of the present utility model, include left clamp ring 30, right clamp ring 31, bunching ring body 32, members such as nut 33 and bolt 34.Wherein the appropriate position on the inboard one side of arcuation ring respectively is provided with the

location hook

35,36 of projection on the left and right

sides clamp ring

30,31, and does have bolt to pass through hole 37 on the one side of turning up above the clamp ring.Turn up the rigidity of face for increase, can set up stiffening rib sheet 38 for example triangular in shape in the bending place.The

location hook

39,40 of projection is also made at the ring bodies two ends of bunching ring body 32, the position of this location hook preferably is provided with one at one end, and a plurality of (for example diagram in are provided with 3) are set on the other end on demand so that make a kind of bunching ring can satisfy the plurality of specifications size the plastic cement pipe tighten adjustment.And consider that it is overlapping that the bunching ring body may two ends occur when being used for the plastic cement pipe of small-sized caliber, and as shown in Figure 4, can make concavo-convex arc groove shape on the respective face of then left clamp ring 30 and bunching ring 32, tighten and can carry out easily so that make to adjust.

The utility model after entire combination promptly as shown in Figure 4.Utilize the setting of

location hook

36,40, the position that can close by required selected this fastener of body size of tightening earlier makes bolt 34 and nut 33 be screwed to the needed degree of tightening afterwards again.In view of location hook 40 is provided with a plurality of positions, cause the demand of tightening that changes the plastic cement pipe of caliber in satisfying very on a large scale with a kind of bunching ring.In addition, bunching ring body 32 is big with the area of contact of being tightened body, can prevent the damage of the ring body embedding plastic cement pipe face that causes when tightening effectively.Also have the setting of the stiffening rib sheet 38 on the clamp ring of the left and right sides, not only can prevent the generation of being out of shape effectively, and its effect of tightening of enhancing also can be arranged in carrying out tightening.

Claims

1, the effective bunching ring of a kind of plastic cement, by the bunching ring body, left and right sides clamp ring and bolt, nut are formed, it is characterized by described left and right sides clamp ring and be provided with the location hook of projection respectively at the inboard appropriate position of arcuation ring body, and also be provided with on the described bunching ring body with this right and left rings on the location hook of corresponding location hook coupling.

2, according to the bunching ring of claim 1, it is characterized by wherein said bunching ring body, the one end does that a location hook is arranged, and makes to have a plurality of location hooks on demand on the other end.

3, according to the bunching ring of claim 1 or 2, it is characterized by wherein said left and right sides clamp ring, can have additional the stiffening rib sheet at the knuckle place that upwards bends separately.