High pressure flexible fracturing hose metal joint

Abstract

The application is suitable for the technical field of metal joint, and provides a high-pressure flexible fracturing hose metal joint, which comprises a hose and a joint body in communication with a hose port, the joint body is sleeved outside the hose, an annular supporting plate is fixedly installed inside the joint body, and the hose port is sleeved on the annular supporting plate and supports the hose through the annular supporting plate. A plurality of grooves distributed in a circumferential array are formed at the hose port, the hose and the joint body are locked from two key directions of vertical and horizontal through the synergistic effect of a circumferential limiting mechanism and an axial limiting mechanism. The circumferential limiting mechanism inserts the limiting piece into the groove of the hose port to prevent the hose from separating from the joint body in the vertical direction; the axial limiting mechanism inserts the limiting rod into the limiting hole of the rod to prevent the hose from moving relative to the joint body in the horizontal direction, effectively solving the problem that the existing joint is easy to fall off when subjected to pulling force in different directions, and greatly enhancing the reliability of the connection.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal joints, and particularly relates to a high-pressure flexible fracturing hose metal joint. BACKGROUND

[0002] The high-pressure flexible fracturing hose is a key component in the fracturing construction process and is used for conveying high-pressure and high-flow sand-carrying liquid to the wellhead. The metal joint thereof, as a connecting component between the hose and the high-pressure equipment, must be able to withstand various mechanical challenges in the high-pressure environment, including pressure fluctuation, vibration and thermal expansion and contraction. Therefore, the design, manufacture and application of the high-pressure flexible fracturing hose metal joint belong to an important part of the high-pressure pipeline technology field.

[0003] The existing high-pressure flexible fracturing hose metal joint with the publication number CN118912290A specifically discloses a metal joint body, the metal joint body includes an outer connecting part, a pull-out resistant connecting part and a transition connecting part arranged in sequence, a first connecting hole is arranged in the outer connecting part, a stepped hole, a second connecting hole and a third connecting hole are sequentially and communicatively arranged in the pull-out resistant connecting part, a transition hole is arranged in the transition connecting part, a first glue injection hole, a second glue injection hole and a third glue injection hole are sequentially arranged on the side wall of the pull-out resistant connecting part, the first glue injection hole is communicated with the stepped hole, the second glue injection hole is communicated with the second connecting hole, the third glue injection hole is communicated with the third connecting hole, and a fourth glue injection hole is arranged on the side wall of the transition connecting part. The existing high-pressure flexible fracturing hose metal joint is prone to joint falling off when subjected to pulling forces in different directions. To solve the above problem, it is necessary to design a high-pressure flexible fracturing hose metal joint. SUMMARY

[0004] The application provides a high-pressure flexible fracturing hose metal joint, which aims to solve the problem that the current high-pressure flexible fracturing hose metal joint is prone to joint falling off when subjected to pulling forces in different directions.

[0005] The application is implemented in the following manner. A high-pressure flexible fracturing hose metal joint includes a hose and a joint body in communication with a hose port, the joint body is sleeved on the outside of the hose, an annular supporting plate is fixedly installed inside the joint body, and the hose port is sleeved on the annular supporting plate and supported by the annular supporting plate.

[0006] A plurality of grooves arranged in a circumferential array are formed at the hose port, a circumferential limiting mechanism is arranged on the joint body, the circumferential limiting mechanism cooperates with the grooves to vertically lock the hose and the joint body, a plurality of rod members arranged in a circumferential array are fixedly installed at the hose end, the rod members are hollow inside, limiting holes are formed in the rod members, an axial limiting mechanism is arranged on the joint body, and the axial limiting mechanism cooperates with the limiting holes to horizontally lock the hose and the joint body.

[0007] As a preferred scheme, the circumferential limiting mechanism comprises a support fixedly installed on the joint body, a limiting piece penetrating through the support, the limiting piece being slidingly installed on the support, one end of the limiting piece being inserted into the groove, the limiting piece being provided in a T shape, elastic pieces being arranged on both sides of the limiting piece, and both ends of each elastic piece being fixedly connected to the limiting piece and the support.

[0008] As a preferred scheme, the limiting piece is provided in a magnet material at the upper end, a plurality of electromagnets are fixedly installed on the support in a circumferential array, and the electromagnets are used for attracting the limiting piece.

[0009] As a preferred scheme, a flange is fixedly installed at one end of the joint body, and a plurality of threaded connection holes are arranged on the flange in a circumferential array.

[0010] As a preferred scheme, the axial limiting mechanism comprises a plurality of inner grooves arranged on the joint body in a circumferential array, a limiting rod being slidingly installed in the inner groove, the upper end of the limiting rod being inserted into the limiting hole, a first spring being arranged in the inner groove, both ends of the first spring being fixedly connected to the limiting rod and the joint body, an annular cavity being arranged in the joint body, the annular cavity and the inner groove being communicated through a guide hole, and the guide hole being arranged on the joint body.

[0011] As a preferred scheme, a threaded hole is arranged on one side of the joint body, the threaded hole is communicated with the annular cavity, a threaded rod is arranged at the threaded hole, and the threaded rod is threadedly connected in the threaded hole.

[0012] As a preferred scheme, a gap is arranged between the hose and the joint body, and a filling mechanism is arranged, the filling mechanism being used for injecting sealant into the gap.

[0013] As a preferred scheme, the filling mechanism comprises a communication hole arranged at one end of a rod, the communication hole being used for communicating the inner cavity of the rod with the gap, and one end of the rod is provided in an opening, a plurality of support plates are fixedly installed outside the joint body, a guide pipe penetrating through and fixedly installed on the support plate, and a movable pipe is arranged outside the guide pipe, one end of the movable pipe being inserted into the rod and being communicated with the rod.

[0014] As a preferred scheme, a second spring is arranged between the movable pipe and the guide pipe, and both ends of the second spring are fixedly connected to the movable pipe and the guide pipe.

[0015] As a preferred scheme, a pipeline is arranged outside the joint body, the pipeline is fixedly connected to and communicated with the guide pipes.

[0016] Compared with the related art, the high-pressure flexible fracturing hose metal joint has the following beneficial effects:

[0017] Through the cooperation of the circumferential limiting mechanism and the axial limiting mechanism, the hose and the joint body are locked from two key directions of vertical and horizontal respectively. The circumferential limiting mechanism uses the limiting piece to insert the groove of the hose port to prevent the hose from separating from the joint body in the vertical direction; the axial limiting mechanism prevents the hose from moving relative to the joint body in the horizontal direction by inserting the limiting rod into the limiting hole of the rod. This all-round limiting design effectively solves the problem that the existing joint is easy to fall off when subjected to pulling force in different directions, greatly enhancing the reliability of the connection.

[0018] Through the elastic piece in the circumferential limiting mechanism and the first spring in the axial limiting mechanism, elastic deformation can occur when subjected to external force, playing a role in buffering and absorbing energy. When the hose is subjected to instantaneous pulling force or impact force, the elastic piece and the first spring can reduce the direct impact on the joint structure, prevent the limiting part from being damaged due to excessive stress, and further ensure the stability of the connection.

[0019] The annular supporting plate fixed inside the joint body supports the hose port, forming a tight fit between the hose port and the joint body. This supporting structure helps to prevent gaps between the hose and the joint body in a high-pressure environment, thereby avoiding fluid leakage and improving the sealing performance of the joint.

[0020] Multi-directional limiting locking ensures stable connection of the hose and the joint body, reducing the problem of sealing failure caused by loose joints. In high-pressure flexible fracturing operations, stable connection can ensure normal delivery of fracturing fluid in the hose, without affecting operation efficiency and safety due to leakage.

[0021] The electromagnet in the circumferential limiting mechanism provides convenience for the installation process. When installing the hose, the electromagnet is powered on, and the electromagnet attracts the limiting piece, making it easier for the limiting piece to insert into the groove of the hose, simplifying the installation operation and improving the installation efficiency. The axial limiting mechanism controls the extension and retraction of the limiting rod through the threaded rod. When the hose needs to be disassembled, the threaded rod is simply rotated out of the threaded hole, and the limiting rod automatically exits the limiting hole under the action of the first spring, so that the hose can be easily disassembled, convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the front view of the present application;

[0023] Figure 2 is the structure diagram of the present application Figure 1 ;

[0024] Figure 3 is the structure diagram of the present application Figure 2 ;

[0025] Figure 4A sectional view of the present application;

[0026] Figure 5 A sectional view of the present application Figure 4 An enlarged schematic view at A in Fig.

[0027] Figure 6 A sectional view of the present application Figure 4 An enlarged schematic view at B in Fig.

[0028] In the figure: 1, hose; 2, joint body; 3, annular supporting plate; 4, groove; 5, rod; 6, limiting hole; 7, supporting piece; 8, limiting piece; 9, elastic piece; 10, electromagnet; 11, flange plate; 12, inner groove; 13, limiting rod; 14, first spring; 15, annular cavity; 16, guide hole; 17, threaded hole; 18, threaded rod; 19, gap; 20, communication hole; 21, supporting plate; 22, guide pipe; 23, movable pipe; 24, second spring; 25, pipeline. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings and detailed description, and will be apparent from the drawings and detailed description. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," and "including" and any variations thereof, are intended to cover a non-exclusive inclusion. The terms "first," "second," and "third" and any variations thereof are used to distinguish elements with similar characteristics, not to describe a particular order.

[0030] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are merely examples from among a great variety of embodiments that can be claimed or otherwise identified as examples of the application.

[0031] A preferred embodiment of the high-pressure flexible fracturing hose metal joint provided by the application is shown in the figure as follows: Figures 1 to 6

[0032] A high-pressure flexible fracturing hose metal joint, comprising a hose 1 and a joint body 2 in communication with the port of the hose 1, the joint body 2 being sleeved on the outside of the hose 1, an annular supporting plate 3 being fixedly installed inside the joint body 2, and the port of the hose 1 being sleeved on the annular supporting plate 3 and being supported by the annular supporting plate 3.

[0033] ​The plurality of grooves 4 are circumferentially arranged at the port of the hose 1, the joint body 2 is provided with a circumferential limiting mechanism, the circumferential limiting mechanism cooperates with the grooves 4 to vertically lock the hose 1 and the joint body 2, the hose 1 is fixedly installed with a plurality of rod members 5 circumferentially arranged at the end thereof, the rod members 5 are hollow, the rod members 5 are provided with limiting holes 6, the joint body 2 is provided with an axial limiting mechanism, the axial limiting mechanism cooperates with the limiting holes 6 to horizontally lock the hose 1 and the joint body 2.

[0034] The circumferential limiting mechanism comprises a support member 7 fixedly installed on the joint body 2, the support member 7 is provided with limiting members 8 penetrating therethrough, the limiting members 8 are slidingly installed on the support member 7, one end of the limiting members 8 is inserted into the grooves 4, the limiting members 8 are provided in T shape, the limiting members 8 are provided with elastic members 9 on both sides thereof, the elastic members 9 are fixedly connected to the limiting members 8 and the support member 7 at both ends thereof. The limiting members 8 are provided with magnets at the upper ends thereof, the joint body 2 is fixedly installed with a plurality of electromagnets 10 circumferentially arranged, the electromagnets 10 are used for attracting the limiting members 8.

[0035] The joint body 2 is fixedly installed with a flange 11 at one end thereof, the flange 11 is provided with a plurality of threaded connection holes circumferentially arranged. The limiting members 8 in the circumferential limiting mechanism are perpendicular to the hose 1.

[0036] The axial limiting mechanism comprises a plurality of inner grooves 12 provided on the joint body 2, the plurality of inner grooves 12 are circumferentially arranged, the inner grooves 12 are slidingly installed with limiting rods 13, the limiting rods 13 are inserted into the limiting holes 6, the inner grooves 12 are provided with first springs 14, the first springs 14 are fixedly connected to the limiting rods 13 and the joint body 2 at both ends thereof, the joint body 2 is provided with an annular cavity 15, the annular cavity 15 is communicated with the inner grooves 12 through guide holes 16 provided on the joint body 2. The joint body 2 is provided with a threaded hole 17 at one side thereof, the threaded hole 17 is communicated with the annular cavity 15, the threaded hole 17 is provided with a threaded rod 18, the threaded rod 18 is threadedly connected to the threaded hole 17. The threaded rod 18 in the axial limiting mechanism is parallel to the joint body 2.

[0037] In the embodiment, the high-pressure flexible fracturing hose metal joint scheme is locked from the vertical and horizontal directions by the circumferential limiting mechanism and the axial limiting mechanism, respectively, to prevent the joint from falling off, and the working principle is as follows:

[0038] The port of the hose 1 is sleeved on the annular supporting plate 3 in the joint body 2, at this time, the plurality of grooves 4 at the port of the hose 1 correspond to the circumferential limiting mechanism. The support member 7 is fixedly installed on the joint body 2, the limiting members 8 are slidingly installed on the support member 7 and penetrating the support member 7. Under the elastic force of the elastic members 9 (such as springs), one end of the limiting members 8 is inserted into the grooves 4, to preliminarily vertically lock the hose 1 and the joint body 2.

[0039] The upper end of the limiting piece 8 is made of magnet material, and the electromagnet 10 is mounted on the supporting piece 7. When the locking effect needs to be strengthened, the electromagnet 10 is powered, and the electromagnet 10 attracts the limiting piece 8, so that the limiting piece 8 is more stably inserted into the groove 4, and the vertical locking capability is further enhanced.

[0040] A plurality of inner grooves 12 are arranged in a circumferential array on the joint body 2, and a limiting rod 13 is slidingly installed in the inner grooves 12. The upper end of the limiting rod 13 is under the elastic force of the first spring 14 in the inner groove 12 and is not inserted into the limiting hole 6 on the rod piece 5.

[0041] When horizontal locking needs to be achieved, the threaded rod 18 is screwed into the threaded hole 17. As the threaded rod 18 is screwed in, it will squeeze the air or liquid (depending on the specific design) in the annular cavity 15. The pressure in the annular cavity 15 increases, is transmitted to each inner groove 12 through the guide hole 16, pushes the limiting rod 13 to slide upward against the elastic force of the first spring 14, and makes the upper end of the limiting rod 13 inserted into the limiting hole 6 on the rod piece 5, thereby achieving horizontal locking of the hose 1 and the joint body 2.

[0042] When the hose 1 needs to be disassembled, the threaded rod 18 is unscrewed from the threaded hole 17, the pressure in the annular cavity 15 decreases, and the limiting rod 13 slides downward under the elastic force of the first spring 14 and exits from the limiting hole 6, thereby releasing the horizontal locking.

[0043] Through the cooperative action of the circumferential limiting mechanism and the axial limiting mechanism, the hose and the joint body are locked from two key directions, vertical and horizontal. The circumferential limiting mechanism uses the limiting piece inserted into the groove of the hose port to prevent the hose from separating from the joint body in the vertical direction. The axial limiting mechanism uses the limiting rod inserted into the limiting hole of the rod piece to prevent the hose from moving relative to the joint body in the horizontal direction. This all-around limiting design effectively solves the problem that the existing joint is easily detached when subjected to pulling force in different directions, and greatly enhances the reliability of the connection.

[0044] The elastic member in the circumferential limiting mechanism and the first spring in the axial limiting mechanism can be elastically deformed when subjected to external pulling force, thereby playing a role in buffering and absorbing energy. When the hose is subjected to instantaneous pulling force or impact force, the elastic member and the first spring can reduce the direct impact on the joint structure, prevent the limiting components from being damaged due to excessive stress, and further ensure the stability of the connection.

[0045] In further preferred embodiments of the present application:

[0046] The gap 19 is arranged between the hose 1 and the joint body 2, and a filling mechanism is further arranged to inject sealant into the gap 19. The filling mechanism comprises a communication hole 20 arranged at one end of the rod 5, which is used to communicate the inner cavity of the rod 5 with the gap 19. The rod 5 is open at one end, and a plurality of support plates 21 are fixedly arranged outside the joint body 2. A guide pipe 22 is fixedly arranged through the support plates 21, and a movable pipe 23 is arranged outside the guide pipe 22. The movable pipe 23 is inserted into the rod 5 at one end and communicates with the rod 5. A second spring 24 is arranged between the movable pipe 23 and the guide pipe 22, and the two ends of the second spring 24 are fixedly connected to the movable pipe 23 and the guide pipe 22, respectively. A pipeline 25 is arranged outside the joint body 2, and the pipeline 25 is fixedly connected to and communicates with the plurality of guide pipes 22.

[0047] In the embodiment, the gap 19 is reserved between the hose 1 and the joint body 2, which provides space for subsequent filling of sealant and is a key part for achieving sealing.

[0048] The rod 5 is open at one end and hollow inside, and the communication hole 20 arranged on the rod 5 communicates the inner cavity of the rod 5 with the gap 19, forming a channel for the sealant to enter the gap 19 from the rod 5. The support plates 21 outside the joint body 2 serve to fix the guide pipes 22, and the movable pipe 23 arranged outside the guide pipe 22 can slide on the guide pipe 22. The second spring 24 arranged between the movable pipe 23 and the guide pipe 22 provides elastic force for the movable pipe 23, so that the movable pipe 23 maintains a certain position in the initial state and provides conditions for subsequent connection and sealing operation with the rod 5.

[0049] The pipeline 25 is fixedly connected to and communicates with the plurality of guide pipes 22, serving as a general channel for conveying sealant and being used to introduce external sealant into each guide pipe 22.

[0050] When the sealing operation is performed, the movable pipe 23 is pushed to overcome the elastic force of the second spring 24, so that one end of the movable pipe 23 is inserted into the open end of the rod 5, achieving communication between the movable pipe 23 and the rod 5. At this time, the pipeline 25, the guide pipe 22, the movable pipe 23, the inner cavity of the rod 5, and the communication hole 20 form a complete sealant conveying path. The sealant is injected into the pipeline 25 by an external pressure device (such as a sealant pump), and the sealant sequentially passes through the pipeline 25, the guide pipe 22, the movable pipe 23, the inner cavity of the rod 5, and finally enters the gap 19 between the hose 1 and the joint body 2 through the communication hole 20. As the sealant is continuously injected, the gap 19 is gradually filled.

[0051] The sealant injected into the gap 19 will undergo a solidification reaction after a certain period of time, changing from a liquid state to a solid state. The solidified sealant can tightly fill the gap 19, forming a reliable sealing barrier.

[0052] The second spring 24 plays a certain buffering and positioning role in the process of connecting the movable tube 23 with the rod 5, ensures the close connection between the movable tube 23 and the rod 5, and prevents leakage during the injection of glue. At the same time, after the glue is solidified, the elastic force of the second spring 24 can also ensure that the movable tube 23 and the rod 5 maintain a stable connection state, further enhancing the sealing performance of the entire filling mechanism, making the connection between the hose 1 and the connector main body 2 more reliable, and effectively preventing fluid from leaking from the gap 19.

[0053] It should be noted that the circuits and electronic components and modules involved in the present application are all prior art, and those skilled in the art can fully realize them without further description. The content protected by the present application does not involve improvement of software and methods.

[0054] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. In actual implementation, another division mode can be used. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or in other forms.

[0055] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the application. Obviously, the described embodiments are only some of the embodiments of the present application, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete features in the embodiments of the present application according to the circumstances without creative labor, so as to obtain different technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also belong to the scope of the present application.

Claims

1. A high pressure flexible fracturing hose metal joint characterized by, The utility model provides a kind of hose joint, including hose (1) and the joint body (2) being communicated with the port of hose (1), the joint body (2) is sleeved outside hose (1), annular supporting plate (3) is fixedly installed inside the joint body (2), the port of hose (1) is sleeved on annular supporting plate (3) and is supported to hose (1) by annular supporting plate (3); A plurality of circumferentially arrayed grooves (4) are formed at the port of the hose (1), a circumferential limiting mechanism is provided on the joint body (2), the circumferential limiting mechanism cooperates with the grooves (4) to vertically lock the hose (1) and the joint body (2), a plurality of circumferentially arrayed rods (5) are fixedly installed at the end of the hose (1), the rods (5) are hollow, limiting holes (6) are formed in the rods (5), an axial limiting mechanism is provided on the joint body (2), the axial limiting mechanism cooperates with the limiting holes (6) to horizontally lock the hose (1) and the joint body (2); A gap (19) is provided between the hose (1) and the joint body (2), and a filling mechanism is further included, which is used to inject sealant into the gap (19); The filling mechanism includes a communication hole (20) formed at one end of the rod (5), the communication hole (20) is used to communicate the inner cavity of the rod (5) with the gap (19), one end of the rod (5) is open, a plurality of support plates (21) are fixedly installed outside the joint body (2), a catheter (22) penetrates and is fixedly installed on the support plate (21), a movable tube (23) is sleeved outside the catheter (22), one end of the movable tube (23) is inserted into the rod (5) and communicates with the rod (5); A second spring (24) is arranged between the movable tube (23) and the catheter (22), and the two ends of the second spring (24) are fixedly connected to the movable tube (23) and the catheter (22) respectively.

2. The high pressure flexible fracturing hose metal joint of claim 1, wherein, The circumferential limiting mechanism includes a support member (7) fixedly installed on the joint body (2), a limiting member (8) penetrates the support member (7), the limiting member (8) is slidingly installed on the support member (7), one end of the limiting member (8) is inserted into the groove (4), the limiting member (8) is T-shaped, and elastic members (9) are arranged on both sides of the limiting member (8), the two ends of the elastic members (9) are fixedly connected to the limiting member (8) and the support member (7) respectively.

3. The high pressure flexible fracturing hose metal joint of claim 2, wherein, The upper ends of the limiting members (8) are made of magnet material, a plurality of circumferentially arrayed electromagnets (10) are fixedly installed on the support member (7), and the electromagnets (10) are used to attract the limiting members (8).

4. The high pressure flexible fracturing hose metal joint of claim 1, wherein, A flange (11) is fixedly installed at one end of the joint body (2), a plurality of circumferentially arrayed threaded connection holes are formed in the flange (11).

5. The high pressure flexible fracturing hose metal joint of claim 1, wherein, The axial limiting mechanism comprises a plurality of inner grooves (12) formed on the joint body (2), the plurality of inner grooves (12) are arranged in a circular array, a limiting rod (13) is slidingly installed in the inner groove (12), the upper end of the limiting rod (13) can be inserted into the limiting hole (6), a first spring (14) is arranged in the inner groove (12), the two ends of the first spring (14) are fixedly connected to the limiting rod (13) and the joint body (2) respectively, an annular cavity (15) is formed in the joint body (2), the annular cavity (15) and the inner groove (12) are communicated through a guide hole (16), and the guide hole (16) is formed on the joint body (2).

6. The high pressure flexible fracturing hose metal joint of claim 5, wherein, A threaded hole (17) is formed on one side of the joint body (2), the threaded hole (17) is communicated with the annular cavity (15), a threaded rod (18) is arranged at the threaded hole (17), and the threaded rod (18) can be threadedly connected in the threaded hole (17).

7. The high pressure flexible fracturing hose metal joint of claim 1, wherein, A pipeline (25) is arranged outside the joint body (2), the pipeline (25) is fixedly connected with and communicated with the plurality of conduits (22).

Images