A cable protector

Abstract

A cable protector includes a first housing and a second housing, as well as a plurality of connecting members. The housing includes a first end and a second end. A first reinforcing block and a second reinforcing block are provided at both ends of the first housing, and a third reinforcing block and a fourth reinforcing block are provided at both ends of the second housing. The first end of the first housing is rotatably connected to the first end of the second housing through the first reinforcing block and the third reinforcing block, and the second end of the first housing is detachably connected to the second end of the second housing through the second reinforcing block and the fourth reinforcing block. By providing reinforcing blocks on the first and second housings, one end is rotatably connected through the reinforcing blocks, and one end is detachably connected through the reinforcing blocks. During installation, only the detachable connection part needs to be operated, so that the present application can be installed by a single person. And due to the presence of the reinforcing blocks, the structure is more stable. At the same time, the reinforcing blocks can also make the oil pipe and pipelines such as cables in close contact, avoiding the sliding of pipelines such as cables on the oil pipe.

Description

Technical Field

[0001] The present invention belongs to the field of auxiliary tools for oil well operations, and particularly relates to a cable protector. Background Art

[0002] During oil well operations, power and signal transmission are required through cables. Generally, the cables are attached to the tubing and connected from the wellhead to the downhole. Therefore, cable protectors have emerged. A cable protector is an auxiliary device that can fix cables and other pipelines to the tubing wall, prevent the tubing from being bumped during the process of being lowered into the well, and can clamp and fix cables and other pipelines to the tubing.

[0003] The structures of cable protectors for oil wells are diverse. Generally, a cable protector consists of two shells, which are assembled together by a hinged manner, and the cross-section is in a shape similar to a circular ring, having a cavity for installing the tubing, cables and other pipelines. During installation, the tubing, cables and other pipelines are clamped between the two shells, and then both ends are successively assembled and fixed using fixing parts such as pins. The assembly is rather troublesome and requires two people to cooperate. At the same time, there is a problem of insufficient structural stability. And because in the prior art, when the protector clamps the cables and other pipelines and the tubing, the combination between the cables and other pipelines and the tubing is not tight enough, resulting in the cables sliding on the tubing due to gravity and other reasons, causing blockages in some places due to accumulation, and there is a problem that the tubing is blocked when moving in the protector. Summary of the Invention

[0004] In order to overcome the problems that the cable protector in the prior art requires two people to cooperate, has at least one of the problems of insufficient structural stability and the sliding of cables and other pipelines on the tubing, the object of the present invention is to provide a cable protector, and the solution is as follows:

[0005] A cable protector includes a first shell, a second shell, and a plurality of connecting members for connecting each component of the cable protector. The shell includes a first end and a second end. The two ends of the first shell are respectively provided with a first reinforcing block and a second reinforcing block, and the two ends of the second shell are respectively provided with a third reinforcing block and a fourth reinforcing block. The first end of the first shell is connected to the first end of the second shell through the first reinforcing block and the third reinforcing block, and the second end of the first shell is connected to the second end of the second shell through the second reinforcing block and the fourth reinforcing block. Through the setting of the reinforcing blocks, not only the structure of the cable protector of the present application is made more stable, but also the reinforcing blocks can further squeeze the installation space of the tubing, making the contact between the tubing, cables and other pipelines closer, and avoiding the sliding of cables and other pipelines on the tubing, resulting in the accumulation of cables and other pipelines.

[0006] In order to achieve single - person operation of the cable protector, the first end of the first housing is rotatably connected to the first end of the second housing through the first strengthening block and the third strengthening block, and the second end of the first housing is detachably connected to the second end of the second housing through the second strengthening block and the fourth strengthening block. During installation, the rotational connection is generally assembled. It only requires slipping the cable protector over the oil pipe and then connecting the detachable connection through a connector. The installation is simple and can achieve single - person operation.

[0007] The connection method between the housing and the strengthening block can be as follows: On both sides of the ends of the first housing and the second housing, there are folding claws. There are holes on the folding claws, and there are grooves on the strengthening block that match the folding claws, and there are holes on both sides of the strengthening block that match the folding claws; The strengthening block is snap - connected to the folding claws through the grooves, and the holes of the folding claws and the holes of the strengthening block are connected through the connector to fix the strengthening block on the housing. Preferably, the groove is a closed groove, which plays a role in limiting the strengthening block.

[0008] Of course, the connection between the housing and the strengthening block can also be: The strengthening block and the housing are of an integrally formed structure, directly cast as a whole through a mold.

[0009] Specifically, the rotatable connection method between the first strengthening block and the third strengthening block is: There are mutually - matching teeth between the first strengthening block and the third strengthening block, and through - holes are opened on both sides of the teeth; When the teeth of the first strengthening block and the third strengthening block are mutually - matched, the through - holes are connected through the connector to complete the rotational connection of the first strengthening block and the third strengthening block.

[0010] The detachable connection method between the second strengthening block and the fourth strengthening block is: There are mutually - matching holes on the second strengthening block and the fourth strengthening block, and the holes are connected through the connector to complete the detachable connection of the second strengthening block and the fourth strengthening block.

[0011] The detachable connection method between the second strengthening block and the fourth strengthening block can also be: The cable protector further includes a connection block. There is a hole on the connection block, there is a notch on the second strengthening block, the connection block is rotatably connected to the notch, there is a groove on the fourth strengthening block, one end of the connector is in interference fit with the groove, and the connector sequentially passes through the groove and the hole of the connection block to complete the detachable connection of the second strengthening block and the fourth strengthening block. Compared with the method of having mutually - matching holes on the second strengthening block and the fourth strengthening block, this connection method avoids the work of aligning the holes before installation and simplifies the operation.

[0012] In order to avoid the risk of the cable protector being hooked or pulled by the wellhead and related facilities in the well, there are inclined claws on both sides of the first housing and the second housing. There are inclined blocks on both sides of the strengthening block.

[0013] Meanwhile, the first housing and / or the second housing are provided with concave pits. The installation space of the oil pipe can be further squeezed, avoiding the formation of cavities between the oil pipe and the housing, making the pipelines such as cables contact the oil pipe more closely, and further avoiding the sliding of pipelines such as cables on the oil pipe.

[0014] The protector of the present application can be in a single - link form and a double - link form. In the single - link form, there is only one set of the first housing and the second housing; in the double - link form, the cable protector includes a connecting plate, two sets of the first housing and two sets of the second housing. The two sets of the second housing are connected by the connecting plate, and both ends of each set of the first housing and the second housing are connected by strengthening blocks.

[0015] In the present invention, by providing strengthening blocks on the first and second housings, one end is rotatably connected through the strengthening block, and one end is detachably connected through the strengthening block. During installation, only the detachable connection part needs to be operated, so that the present invention can be installed by a single person, and because of the existence of the strengthening blocks, the structure is more stable; at the same time, due to the existence of the strengthening blocks, the installation space of the oil pipe is squeezed, making the oil pipe and the cable contact closely, avoiding the sliding of pipelines such as cables on the oil pipe, and preventing the accumulation of pipelines such as cables. And because of the existence of the concave pits, the cable protector can further squeeze the oil pipe, avoiding the formation of cavities between the oil pipe and the housing, making the pipelines such as cables contact the oil pipe more closely, and further avoiding the sliding of pipelines such as cables on the oil pipe.

[0016] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings, and those skilled in the art will understand the above - mentioned and other objects, advantages and features of the present invention more clearly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0018] Figure 1 is an exploded view of the cable protector of the present invention;

[0019] Figure 2 is a schematic diagram of the cable protector of the present invention in the use state;

[0020] Figure 3 is a schematic diagram of the structure of the first housing;

[0021] Figure 4 is a schematic diagram of the structure of the second housing;

[0022] Figure 5 is a schematic diagram of the structure of the first strengthening block and the third strengthening block;

[0023] Figure 6 is Figure 1 Left view schematic diagram after the combination of the first and third strengthening blocks of the cable protector;

[0024] Figure 7 is the structural schematic diagram of the second and fourth strengthening blocks;

[0025] Figure 8 is the explosion diagram of the cable protector in another form of the second and fourth strengthening blocks;

[0026] Figure 9 is the structural schematic diagram of the second and fourth strengthening blocks in another form;

[0027] Figure 10 is Figure 8 Right view schematic diagram after the combination of the second and fourth strengthening blocks;

[0028] Figure 11 is the structural schematic diagram of the pin shaft with a clamping structure;

[0029] Figure 12 is the schematic diagram of the cable protector of the present invention in a double - link form;

[0030] Figure 13 is Figure 12 Cross - sectional view of A - A in Detailed implementation manners

[0031] To make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the attached drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0032] In this article, the left and right sides or the oblique left and right sides of each component in the figure are called the two ends of the component, and the upper and lower sides or the oblique upper and lower sides of each component in the figure are called the two sides of the component. The two ends and two sides defined in this article are for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of description and simplifying the operation, 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. Therefore, it cannot be understood as a limitation to this application.

[0033] Such as Figure 1As shown in the figure, the cable protector of the present invention includes a first housing 1, a second housing 2, and a plurality of connecting members for connecting each component, and a first reinforcing block 31, a second reinforcing block 32 at both ends of the first housing 1 and a third reinforcing block 41, a fourth reinforcing block 42 at both ends of the second housing. The first housing 1 is connected to the second housing 2 through the reinforcing blocks 31 and 41, and the first housing 1 is connected to the second housing 2 through the reinforcing blocks 32 and 42. Through the arrangement of the reinforcing blocks, first, the reinforcing blocks make the structure of the cable protector more stable; second, the reinforcing blocks squeeze the oil pipe installation space, so that the oil pipe and the cable can be in close contact, avoiding the sliding of cables and other pipelines on the oil pipe and preventing the accumulation of cables and other pipelines.

[0034] At the same time, the first housing 1 of the present invention is rotatably connected to the second housing 2 through the reinforcing blocks 31 and 41, and the first housing 1 is detachably connected to the second housing 2 through the reinforcing blocks 32 and 42. In this way of one - end rotatable connection and one - end detachable connection, during normal use, the rotatable connection part is pre - assembled. When installing, after putting the cable protector on the oil pipe, use the connecting member to connect and fix the detachable connection part, which simplifies the installation and enables a single person to operate this application. As Figure 2 shown, it is a schematic diagram of the installation completed, where the mark 7 is the schematic shape of the oil pipe, and the mark 8 is the schematic shape of the cable.

[0035] On both sides of the ends of the first housing 1 and the second housing 2 of the present application, folding claws 11, 12, folding claws 21, 22 are respectively provided; taking the second end of the second housing 2 as an example, and combining Figure 1 、 4 shown, there is a hole on the folding claw 22, and a groove 421 matching the folding claw 22 is provided on the reinforcing block 42. At the same time, holes matching the folding claw 22 are also provided on both sides of the reinforcing block. When the folding claw 22 is matched with the groove 421, that is, when the reinforcing block 42 is clamped on the housing 2 through the groove 421, the hole of the folding claw 22 and the reinforcing block 42 are in a concentric state, and then use the connecting members 422 and 423 to connect and fix the reinforcing block 42 on the second housing 2. Optionally, the groove can be a closed groove, and the setting of the closed groove plays a role in limiting the position of the reinforcing block. Exemplarily, as Figure 8 shown by the closed groove 421, the closed groove 421 plays a limiting role on the reinforcing block 42. Similarly, the reinforcing blocks 31, 32, and 41 are also fixed on the housing in the above - mentioned manner. Preferably, the end face of each folding claw is perpendicular to the end face of the housing, being 90 degrees. Exemplarily, as Figure 4 shown, the end face of the folding claw 21 is perpendicular to the end face of the second housing 2, that is, the angle a in the figure is a right angle.

[0036] Of course, the reinforcing block and the housing may not be fixedly connected together by the above-mentioned method of using a connecting member; alternatively, the housing and the reinforcing block may be directly fixed together by an integral molding process, that is, using a mold for processing, and the reinforcing block and the housing are directly cast as a whole during processing for use.

[0037] The first housing 1 and the second housing 2 are rotatably connected through the reinforcing blocks 31 and 41. Combining Figure 1 with 5, the specific connection method is as follows: The reinforcing block 31 is provided with teeth 311, and the reinforcing block 41 is provided with teeth 411 and 412, and through holes are provided on both sides of the teeth 311, 411, and 412. When the reinforcing blocks 31 and 41 are combined, the teeth 311, 411, and 412 form a through hole. Through the connection of the connecting member 312, the first housing and the second housing can be rotatably connected. The number of teeth is not limited to the number in the figure, as long as one housing has an odd number of teeth and one housing has an even number of teeth.

[0038] Preferably, the connecting member for the rotational connection used in this application is a pin shaft. In this embodiment, there is no clamping structure on both sides of the pin shaft used. At this time, the specific combination Figure 1 and 5 as shown in 6, threaded holes need to be additionally provided on both sides of the reinforcing block 41, and a section of thread is also provided on the through holes of the teeth 411 and 412. Through the connection of the connecting members 414 and 415, the pin shaft 312 is arranged between the connecting members 414 and 415, and a gasket 413 is used for reinforcement. This setting method makes the rotational connection part of the cable protector detachable. Of course, a pin shaft with a clamping structure as shown in Figure 11 can also be directly used. The rotational connection method in the present invention is not limited to the above method, as long as the first ends of the first housing 1 and the second housing 2 can be rotatably connected.

[0039] The first and second housings 1 and 2 are detachably connected through the reinforcing blocks 32 and 42. Combining Figure 1 with 7, one of the connection methods is as follows: The reinforcing blocks 32 and 42 are provided with holes 323 and 425, and the connecting member 321 sequentially passes through the holes on the reinforcing blocks 32 and 42 to complete the connection between the reinforcing blocks. In this embodiment, the holes of the reinforcing blocks 32 and 42 are threaded holes, and the connecting member 321 uses a bolt, and the connection is fixed by using the bolt. When the bolt is tightened or loosened, the clamping force of the protector can also be adjusted.

[0040] In another alternative embodiment, as shown in Figures 8 - 10As shown, the cable protector further includes a connecting block 9. The connecting block is provided with a hole 91. A notch 424 for installing the connecting block 9 is correspondingly formed on the reinforcing block 42. The connecting block 9 is rotatably connected to the notch 424. The reinforcing block 32 is provided with a groove 322. One end of the connecting member 321 is in interference fit with the groove 322. The connecting member 321 sequentially passes through the groove 322 and the hole 91 to complete the connection between the reinforcing blocks. In this embodiment, the connecting block 9 uses a tee connecting block. The two sides of the tee connecting block are provided with holes 92 and 93. The rotating connection of the connecting block is completed through the connecting members 422 and 423. The groove 322 on the reinforcing block 32 is a T-shaped groove. In the figure, the T-shaped groove includes a horizontal groove 3221 and a vertical groove 3222. The connecting member 321 uses a bolt. The bolt 321 sequentially passes through the horizontal groove 3221 and the hole 91 to complete the connection between the reinforcing blocks. Among them, one end of the bolt 321 is in interference fit with the vertical groove 3222, Figure 10 As can be seen from this, one end of the bolt 321 is stuck in the vertical groove 3222. The implementation method of this embodiment avoids the need for hole alignment when holes are provided on both reinforcing blocks, simplifying the operation.

[0041] To prevent the cable protector from hooking and other conflicts with the wellhead and related facilities in the well when it goes down the well, inclined claws 5 are provided on both sides of the first and second shells 1 and 2. At the same time, inclined blocks 6 are also provided on both sides of the reinforcing blocks 31, 32, 41, and 42. The inclined claws 5 and the inclined blocks 6 are in the form of inclining at a certain angle towards the tubing side of the cable protector as Figure 2 shown. Preferably, the angle of the end face of the inclined claw relative to the end face of the shell is an obtuse angle. Exemplarily, as Figure 4 shown, the end face of the inclined claw 5 is an obtuse angle relative to the end face of the second shell 2, that is, the angle b is greater than 90 degrees and less than 180 degrees; similarly, the angle of the inclined edge of the end face of the inclined block relative to the end face of the shell is also an obtuse angle. Exemplarily, as shown in Figure 5, the inclined edge of the end face of the inclined block 6 is an obtuse angle relative to the end face of the reinforcing block. Since the end face of the shell is basically parallel to the end face of the reinforcing block, the inclined edge of the end face of the inclined block 6 is an obtuse angle relative to the end face of the shell, that is, the angle c is greater than 90 degrees and less than 180 degrees. This setting method makes the upper and lower sides of the cable protector in an inwardly converging form, as Figure 2 shown, avoiding conflicts such as hanging and hooking between the protector and the wellhead and related facilities in the well. At the same time, in order to further reduce conflicts such as hanging and hooking, the outer edges of the inclined claws 5 and the inclined blocks 6 are all rounded.

[0042] At the same time, a concave pit 13 is provided on the first shell 1 and / or the second shell 2. Here, the concave pit 13 refers to the concave pit facing the tubing 7. Specifically, Figure 1In the embodiment, a pit 13 is provided on the first shell 1, which squeezes the installation space of the oil pipe, avoids the formation of a cavity between the shell and the oil pipe, and makes the oil pipe and the cables and other pipelines in close contact, avoiding the cables and other pipelines from sliding on the oil pipe; at the same time, the pit also increases the contact area between the protector and the oil pipe, further increasing the friction between the protector and the oil pipe. Of course, the pit of the present invention is not limited to being provided on the first shell 1 or the second shell 2, and pits can be provided on both shells, and multiple pits can be provided on each shell, such as Figure 8 As shown, two recesses 13 are provided on the first shell 1 .

[0043] In order to further increase the friction, uneven texture can be provided on the surface of the reinforcing blocks 31, 32, 41, 42 to increase the friction and prevent the oil pipe from sliding up and down in the cable protector. Preferably, the uneven texture can be provided only on the contact surface between the reinforcing block and the oil pipe.

[0044] The cable protector of the present application has single-joint and double-joint forms. The single-joint form is the form shown in FIG. 2, which is composed of a set of first shell 1 and second shell 2. When it is a double-joint form, it includes two sets of first shell 1 and second shell 2, and the two sets of second shell 2 are connected by a connecting plate 10, and the two ends of each set of first shell and second shell are connected by a reinforcing block. The connection method of the connecting plate 10 and the second shell 2 can be welding, and the two sets of second shells and the connecting plate 10 can also be an integrally formed structure. The connection between the second shell and the connecting plate 10 is not limited here.

[0045] In order to enable the connecting plate 10 to effectively clamp the cable and prevent the connecting plate from over-extruding the cable, Figure 10 As shown, the bending angles of the two sides of the connecting plate AA section are obtuse angles, that is, Figure 10 The median angle d is greater than 90 degrees and less than 180 degrees. Preferably, the angle d is 105 degrees.

[0046] The present invention sets a reinforcing block on the first and second shells, one end is connected by rotation through the reinforcing block, and the other end is connected by detachable connection through the reinforcing block. When installing, only the detachable connection needs to be operated, so that the present invention can be installed by a single person, and because of the existence of the reinforcing block, the structure of the cable protector is more stable; at the same time, the existence of the reinforcing block squeezes the installation space of the oil pipe, so that the oil pipe and the cable can be in close contact, avoiding the sliding of the cable and other pipelines on the oil pipe, and preventing the accumulation of the cable and other pipelines. And because of the existence of the pit, the cable protector further squeezes the oil pipe, avoiding the formation of a cavity between the oil pipe and the shell, so that the cable and other pipelines are in closer contact with the oil pipe, and further avoiding the problem of the cable and other pipelines sliding on the oil pipe.

[0047] At this point, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the disclosed content of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A cable protector, comprising a first housing and a second housing, as well as a plurality of connecting members, the housing comprising a first end and a second end, characterized in that, The two ends of the first housing are respectively provided with a first reinforcing block and a second reinforcing block, and the two ends of the second housing are respectively provided with a third reinforcing block and a fourth reinforcing block; the first end of the first housing is connected to the first end of the second housing through the first reinforcing block and the third reinforcing block, and the second end of the first housing is connected to the second end of the second housing through the second reinforcing block and the fourth reinforcing block; folding claws are provided on both sides of the ends of the first housing and the second housing, holes are provided on the folding claws, grooves for cooperating with the folding claws are provided on the reinforcing blocks, and holes for cooperating with the folding claws are provided on both sides of the reinforcing blocks; the reinforcing block is snap-fitted onto the folding claw through the groove, and the holes of the folding claw and the holes of the reinforcing block are connected by the connecting member to fix the reinforcing block on the housing.

2. The cable protector according to claim 1, characterized in that, The first end of the first housing is rotatably connected to the first end of the second housing through the first reinforcing block and the third reinforcing block, and the second end of the first housing is detachably connected to the second end of the second housing through the second reinforcing block and the fourth reinforcing block.

3. The cable protector according to claim 1, characterized in that, The groove is a closed groove.

4. The cable protector according to claim 2, characterized in that, Teeth that cooperate with each other are provided between the first reinforcing block and the third reinforcing block, and through holes are provided on both sides of the teeth; when the teeth of the first reinforcing block and the third reinforcing block cooperate with each other, the through holes are connected by the connecting member to complete the rotational connection of the first reinforcing block and the third reinforcing block.

5. The cable protector according to claim 2, characterized in that, Holes that cooperate with each other are provided on the second reinforcing block and the fourth reinforcing block, and the holes are connected by the connecting member to complete the detachable connection of the second reinforcing block and the fourth reinforcing block.

6. The cable protector according to claim 2, characterized in that, The cable protector further includes a connecting block, holes are provided on the connecting block, a notch is provided on the second reinforcing block, the connecting block is rotatably connected to the notch, a groove is provided on the fourth reinforcing block, one end of the connecting member is in interference fit with the groove, and the connecting member sequentially passes through the groove and the hole of the connecting block to complete the detachable connection of the second reinforcing block and the fourth reinforcing block.

7. The cable protector according to claim 1, characterized in that, Oblique claws are provided on both sides of the first housing and the second housing.

8. The cable protector according to claim 1, characterized in that, Oblique blocks are provided on both sides of the reinforcing block.

9. The cable protector according to claim 1, characterized in that, Concave pits are provided on the first housing and / or the second housing.

10. The cable protector according to claim 1, characterized in that, The cable protector includes a connecting plate, two groups of first housings and two groups of second housings, and the two groups of second housings are connected through the connecting plate.

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