Disclosure of Invention
The embodiment of the invention provides a self-tightening steel wire clamp, which can clamp steel wires and fix the steel wire clamp on a steel pipe with a transverse vertical well head by one person without assistance of other people. In the same way, when the measurement is repeated, the position movement of the steel wire can be completed by one person, so that the steel wire is easy to carry and transfer, and the working strength of the measuring person can be greatly reduced.
In one aspect, the embodiment of the invention provides a self-tightening steel wire clamp, which comprises a wedge-shaped piece, a bolt and a top piece; the bolt penetrates through the wedge-shaped piece, and the bolt penetrates through the top piece; the top piece and the bolt caps of the bolts are respectively positioned at two sides of the top piece, an accommodating space is formed between the top piece and the wedge-shaped piece, and after an object is accommodated in the accommodating space, the top piece is fixed on the wedge-shaped piece through acting force between the top piece and the wedge-shaped piece;
the wedge is provided with a long through hole, the length direction of the long through hole is arranged in the length direction of the wedge, the bolt is arranged in the long through hole, and the width of the long through hole is smaller than the contact width of the top piece and the wedge.
Preferably, the tail end of the bolt is arranged in a groove, and the groove surrounds the circumference of the bolt.
Preferably, the top piece comprises a limit groove, and the limit groove penetrates through the top piece along the axial direction of the bolt.
Preferably, the nut is screwed on the bolt, the top piece is located between the wedge piece and the nut, and the distance from the bottom of the limiting groove to the axis of the bolt is smaller than the distance from the outer edge of the nut to the axis of the bolt.
Preferably, the contact surface of the top piece and the nut is a plane.
Preferably, the nut is characterized by two nuts.
Preferably, a second top piece is also included, the second top piece and the top piece are the same in shape, the second top piece is arranged between the wedge-shaped piece and the top piece, and the bolt penetrates through the second top piece and is arranged in a mirror image with the top piece, and the contact surface of the second top piece and the wedge-shaped piece is a plane.
Preferably, the opposite sides of the bolt parallel to the central axis are unthreaded, and the unthreaded sides are in contact with the wall of the elongated through hole.
Preferably, the device further comprises a limiting block, wherein the limiting block is arranged on the side wall of the large section of the wedge-shaped piece on the same side with the top piece, and the area of the large section of the limiting block is larger than that of the large section of the strip through hole; and the limiting block is provided with a limiting surface, wherein the limiting surface is parallel to the length direction of the long through hole and is positioned in the extending surface of the long through hole in the length direction.
Preferably, the wedge is provided with a hanging hole, the hanging hole is positioned on the wedge, and the cross-sectional area of the wedge where the hanging hole is positioned is smaller than or equal to the cross-sectional area of the wedge where the strip through hole is positioned.
The technical scheme has the following beneficial effects: when the steel wire is arranged in the engineering construction connection measurement, the steel wire can be wound on the screw rod of the bolt between the wedge-shaped piece and the top piece for several circles, the drooping end of the steel wire is in the same direction as the large-section end of the wedge-shaped piece, the wedge-shaped piece and the top piece clamp the steel wire to realize the winding and fixing of the steel wire, and then the self-tightening steel wire clamp is hung on a steel pipe transversely arranged at a wellhead.
Specifically, be equipped with rectangular through-hole on the wedge, the length direction of rectangular through-hole is located in the length direction of wedge, the bolt is located in the rectangular through-hole, rectangular through-hole's width is less than the top piece with the contact width of wedge, then the top piece just wedge can not pass from wedge one side to the opposite side from rectangular through-hole, namely just stay in the installation side.
When the steel wire is installed, firstly, a measurer moves the bolt (namely drives the top piece) to the small section end of the wedge piece along the length direction of the strip through hole, then the gap between the wedge piece and the top piece is enlarged according to the characteristics of the wedge, then the steel wire is wound on the screw rod of the bolt between the wedge piece and the top piece for several circles, the sagging end of the steel wire and the large section end of the wedge piece are in the same direction, then the bolt is moved to the large section end of the wedge piece again, and the distance between the wedge piece and the top piece is reduced along with the widening of the inclined plane of the wedge piece until the steel wire is clamped. Finally, the self-tightening steel wire clamp can be hung on a steel pipe transversely arranged at a wellhead to carry out specific connection measurement. The operation just winds the steel wire on the bolt, the winding length of the steel wire is small, and a large amount of steel wires can be saved each time compared with the winding on the steel pipe. The steel wire clamp is simple and easy to operate, one person can clamp the steel wire and fix the steel wire clamp on the steel pipe with the transverse vertical well head, and the assistance of other people is not needed. Also, the positional shift of the wire can be accomplished by one person while repeating the measurement. In addition, the steel wire clamp is small in size, easy to carry and transfer, and capable of greatly reducing the working strength of measuring staff. Therefore, the steel wire clamp saves manpower and material resources, saves measurement time, improves labor efficiency, is easy for mass production, and improves economic benefit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, in connection with an embodiment of the present invention, there is provided a self-tightening wire clip comprising a wedge 1, a bolt 2 and a top 3; the bolt 2 penetrates the wedge 1, and the bolt 2 penetrates the top 3; the top piece 3 and the bolt caps of the bolts 2 are respectively positioned at two sides of the top piece 3, an accommodating space is formed between the top piece 3 and the wedge-shaped piece 1, and after an object is accommodated in the accommodating space, the top piece 3 is fixed on the wedge-shaped piece 1 through acting force between the top piece 3 and the wedge-shaped piece 1; when the steel wire is arranged in the engineering construction connection measurement, the steel wire can be wound on the screw rod of the bolt 2 between the wedge-shaped piece 1 and the top piece 3 for several circles, the sagging end of the steel wire and the large section end of the wedge-shaped piece 1 are in the same direction, the wedge-shaped piece 1 and the top piece 3 clamp the steel wire to realize the winding and fixing of the steel wire, and then the self-tightening steel wire clamp is hung on a steel pipe transversely arranged at a wellhead.
Specifically, the wedge 1 is provided with a long through hole 11, the length direction of the long through hole 11 is arranged in the length direction of the wedge 1, the bolt 2 is arranged in the long through hole 11 (that is, the bolt 2 penetrates through the long through hole 11), the width of the long through hole 11 is smaller than the contact width of the top piece 3 and the wedge 1, and then the top piece 3 cannot penetrate through the wedge 1 from one side to the other side of the wedge 1 from the long through hole 11, that is, the top piece stays at the installation side.
When the steel wire is installed, firstly, a measurer moves the bolt 2 (namely, drives the top piece 3) to the small section end of the wedge piece 1 along the length direction of the strip through hole 11, according to the characteristics of the wedge, the gap between the wedge piece 1 and the top piece 3 is enlarged, then the steel wire is wound on the screw rod of the bolt 2 between the wedge piece 1 and the top piece 3 for a plurality of circles, the sagging end of the steel wire is in the same direction as the large section end of the wedge piece 1, then the bolt 2 is moved to the large section end of the wedge piece 1 again, along with the widening of the inclined plane of the wedge piece 1, the distance between the wedge piece 1 and the top piece 3 is reduced, the wedge piece 1 is completely fixed until the steel wire is clamped, and at the moment, the wedge piece 1 is completely fixed by the nut of the fixed bolt 2 and the top piece 3. Finally, the self-tightening steel wire clamp can be hung on a steel pipe transversely arranged at a wellhead to carry out specific connection measurement. The operation just winds the steel wire on the bolt, the winding length of the steel wire is small, and a large amount of steel wires can be saved each time compared with the winding on the steel pipe. The steel wire clamp is simple and easy to operate, one person can clamp the steel wire and fix the steel wire clamp on the steel pipe with the transverse vertical well head, and the assistance of other people is not needed. Also, the positional shift of the wire can be accomplished by one person while repeating the measurement. In addition, the steel wire clamp is small in size, easy to carry and transfer, and capable of greatly reducing the working strength of measuring staff. Therefore, the steel wire clamp saves manpower and material resources, saves measurement time, improves labor efficiency, is easy for mass production, and improves economic benefit.
Preferably, the depth direction of the long through hole 11 is perpendicular to a certain inclined plane of the wedge-shaped element 1, that is, the bolt 2 is perpendicular to the inclined plane, so that the steel wire can directly hang into the vertical shaft along the inclined plane without bending and passing through the wedge-shaped element 1, thereby protecting the steel wire.
The wedge-shaped piece 1 can be manufactured by adopting a long steel plate with the thickness of 1.5-2mm, firstly bending the long steel plate, setting the bending position as a large-section end of the wedge-shaped piece 1, setting the bent part as a bending part, setting the non-bent part as a first surface, setting the steel plate surface which is folded back to be attached to the first surface together with the bending part as an inclined surface, setting the inclined surface at a wider distance from the first surface at the bending part (instead of being attached to the first surface after bending), gradually approaching the inclined surface to the first surface along with gradually separating from the bending part (namely, having a certain angle with the first surface instead of being parallel with the first surface), finally setting the inclined surface to be completely attached to the first surface (namely, setting the inclined surface to be a small-section end) without inclining any more, and fixing the attached part through welding or threads. The length direction of the strip through hole 11 is arranged in the length direction of the wedge-shaped piece 1, in the first case, the strip through hole 11 is all arranged on the wedge-shaped piece 1 with the inclined surface in the length direction; in the second case, one section of the elongated through hole 11 in the longitudinal direction is located on the wedge 1 having the inclined surface, and the other section is located where the third surface is attached to the first surface. At this time, the length direction of the elongated through hole 11 is along the direction of the reverse bend of the inclined plane (i.e., the large-section end is directed toward the small-section end), the width direction is parallel to the first face and perpendicular to the length direction thereof, and the depth direction is perpendicular to the first face of the wedge 1. The bolts 2 provided in the elongated through holes 11 may be 8mm bolts.
Preferably, as shown in fig. 1, the end of the shank of the bolt 2 is provided with a groove 21, the groove 21 surrounds the circumference of the shank of the bolt 2, and the top member 3 is located between the groove 21 and the wedge member 1. Specifically, when a measurer fixes the steel wire, the steel wire is first wound in the circumferential groove 21 at the screw end of the bolt 2, functioning as a preliminary fixing of the steel wire. Then twine the steel wire on the screw rod of bolt 2 between wedge 1 and top piece 3 again and press from both sides tightly, through measuring the steel wire winding of twice different modes, have the effect of dual insurance, can guarantee that the steel wire clamp can fix the steel wire.
Preferably, as shown in fig. 2 and 4, the top member 3 includes a limit groove 31, and the limit groove 31 penetrates through the top member 3 along the axial direction of the bolt 2. Specifically, when a measurer fixes the steel wire, the steel wire is first wound in the circumferential groove 21 at the screw end of the bolt 2, or wound on the screw of the bolt 2 outside the top member 3, which serves as a preliminary fixing function. The wire is then led through the limit groove 31 of the top piece 3 and onto the screw of the bolt 2 between the wedge 1 and the top piece 3 and wound, finally clamping the wire. Because of the groove-shaped structure of the limit groove 31, when the steel wire passes through the limit groove 31, the degree of freedom of the steel wire is limited, so that the steel wire has smaller displacement in the direction perpendicular to the axis of the steel wire, larger movement (the groove width can be 2 mm) of the steel wire is avoided, the steel wire is facilitated to be rapidly wound on the screw of the bolt 2 between the wedge-shaped piece 1 and the top piece 3, and after the steel wire is tightened, the steel wire in the axis direction of the screw does not shake or move greatly. Further, the limiting groove 31 is formed on the top member 3 with the smaller cross section of the wedge member 1, so that the steel wire is at the bottom of the limiting groove 31, and the moving direction of the steel wire is minimum.
Preferably, as shown in fig. 1, the device further comprises a nut 5, the nut 5 is screwed on the bolt 2, the top piece 3 is positioned between the wedge-shaped piece 1 and the nut 5, that is, the nut 5 is screwed on the bolt 2, then the top piece 3 is positioned between the wedge-shaped piece 1 and the nut 5, so that the movement range of the top piece 3 is limited, and the movement range of the steel wire wound between the wedge-shaped piece 1 and the top piece 3 is limited, so that the device is simple to operate and easy to implement. And the range can be properly adjusted by screwing according to the requirements so as to meet the requirements of different situations.
In addition, the distance from the bottom of the limit groove 31 to the axis of the bolt 2 is smaller than the distance from the outer edge of the nut 5 to the axis of the bolt 2. The device is specifically used for winding a steel wire in a circumferential groove 21 at the tail end of a screw rod of a bolt 2 or winding the steel wire on the screw rod of the bolt 2 outside a top piece 3, then penetrating through a limit groove 31, and only when the steel wire is fully contacted with the groove wall of the limit groove 31, the limit effect can be achieved.
Preferably, as shown in fig. 1, the contact surface of the top member 3 and the nut 5 is a plane. Because the contact surface of the nut 5 is relatively large, when the steel wire is in a clamping state, in order to facilitate better locking force between the nut and the top piece 3, the contact surface of the top piece 3 and the nut 5 is designed to be a plane, and in addition, the top piece 3 and the nut 5 are in plane contact, so that the shaking of the top piece 3 is avoided, and the clamping effect of the steel wire is influenced.
Preferably, as shown in fig. 1, two nuts 5 are adopted, 2 nuts 5 are adopted to bear large load, and when the steel wire is fixed on the inclined plane of the wedge-shaped piece 1, the steel wire and the wedge-shaped piece 1 are kept in a stress balance state finally, so that the steel wire is always in a clamped state. Or the nut 5 is also a double nut, and the double nut has the advantages of convenient maintenance and repair and long service life when keeping the wedge-shaped piece 1 and the top piece 3 in a stress balance state, and can prolong the service life of the steel wire clamp.
Preferably, as shown in fig. 1, the device further comprises a second top piece 6, the second top piece 6 has the same shape as the top piece 3, the second top piece 6 is arranged between the wedge-shaped piece 1 and the top piece 3 and is arranged in a mirror image with the top piece 3, the bolt 2 penetrates through the second top piece 6, and the contact surface of the second top piece 6 and the wedge-shaped piece 1 is a plane. Specifically, the second top piece 6 is arranged in mirror image with the top piece 3, the contact surface of the second top piece 6 and the wedge-shaped piece 1 is a plane, so that the two parts are fully contacted, and the damage actions of flattening the steel wire and the like caused by applying excessive force on the steel wire when the steel wire is clamped are avoided
Preferably, as shown in fig. 3, the opposite sides of the bolt 2 parallel to the central axis are unthreaded (the threads on the two sides of the bolt 2 are ground away), and the unthreaded sides are in contact with the walls of the elongated through hole 11. When the wire clamp of the invention is not in use, the top piece 3 is in contact with the wedge 1 and at a distance from the large cross-section end of the top piece 3. When the measurer fixes the steel wire, the bolt 2 is held by the hand, and the moving bolt 2 moves toward the small cross-section end of the wedge 1. When five threads are arranged on the bolt 2 which is in contact with the hole wall of the long through hole 11, the friction force between the bolt 2 and two side walls of the long through hole 11 can be reduced, and the movement is convenient. Similarly, when the steel wire is wound on the top piece 3 and the wedge piece 1, and the bolt 2 moves towards the large-section end of the wedge piece 1, the bolt 2 and the two side walls of the strip through hole 11 can have smaller friction force, and the operation of measuring personnel is facilitated.
Preferably, as shown in fig. 1 and 2, the device further comprises a limiting block 4, the limiting block 4 is arranged on the side wall of the large section of the wedge-shaped member 1 on the same side as the top member 3, the area of the large section of the limiting block 4 is larger than that of the large section of the long through hole 11, and the limiting block 4 can be formed by stamping or bending a steel plate. According to the stress principle of clamping the steel wire by the top piece 3 and the wedge-shaped piece 1, and the characteristics that one end of the steel wire is hung in the vertical shaft and a heavy hammer is hung at the end part. The end of the wire entering the shaft extends from the large cross-section end of the wedge 1. The limiting block 4 is arranged on the side wall of the large section of the wedge-shaped piece 1 on the same side of the top piece 3 and used for limiting the shaking of the steel wire and avoiding the breakage caused by the overlarge shaking of the steel wire. The area of the large cross section of the limiting block 4 is larger than that of the long through hole 11, namely the limiting range of the limiting block 4 is larger than the movable range of the steel wire on the outer ring of the bolt 2, and the steel wire can be limited. And the limiting block 4 is provided with a limiting surface, the limiting surface is parallel to the length direction of the long through hole 11, and is positioned in the extending surface of the long through hole 11 in the length direction, the limiting block 4 is limited by contacting with a steel wire, and then the limiting block 4 in the length direction of the long through hole 11 is provided with the limiting surface, and the steel wire is limited in movement amplitude after contacting with the limiting surface and is gradually static. The limiting surface is in linear contact with the steel wire, the steel wire is uniformly stressed, excessive stress or concentrated stress is avoided, and the steel wire is also protected while limiting.
Preferably, as shown in fig. 1 and 2, the wedge 1 is provided with a hanging hole 12, the hanging hole 12 is located on the wedge 1, and the cross-sectional area of the wedge 1 where the hanging hole 12 is located is smaller than or equal to the cross-sectional area of the wedge 1 where the elongated through hole 11 is located. In addition, according to the principle of the force applied by the top member 3 and the wedge member 1 to clamp the steel wire, and the characteristic that one end of the steel wire is hung in the shaft and the weight is hung at the end, the end of the steel wire entering the shaft extends from the large section end of the wedge member 1. The steel wire is wound on the screw rod of the bolt 2 between the wedge-shaped piece 1 and the top piece 3, and after the large section end of the wedge-shaped piece 1 is clamped together, the steel wire clamp of the invention is required to be arranged at the vertical shaft mouth, so that a hanging hole 12 (the diameter can be 8 mm) is arranged at the small section end of the wedge-shaped piece 1, and after a flexible rope and the like pass through the hanging hole 12, the whole steel wire clamp is arranged on a steel pipe and other devices which are transversely arranged at the vertical shaft mouth. The operation is simple, no assistance of other people is needed when the position of the movable steel wire is set for the first time or measured repeatedly, the manpower and material resources are saved, the measuring time is saved, and the labor efficiency is improved. Furthermore, the axis of the hanging hole 12 is parallel to the depth direction of the long through hole 11, namely, parallel to the axis of the bolt 2, after the whole steel wire clamp is arranged on a steel pipe or other devices with a transverse shaft opening, the steel wire can directly hang into the shaft along the surface of the wedge-shaped piece 1 without bending and passing through the wedge-shaped piece 1, and the steel wire can be protected.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. As will be apparent to those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, as used in the specification or claims, the term "comprising" is intended to be inclusive in a manner similar to the term "comprising," as interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean "non-exclusive or".
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.