Circulation connector with sealing structure

Abstract

The utility model discloses a circulation joint with a sealing structure, which comprises an upper joint, the bottom of the upper joint is provided with a lower joint, and the surface of the upper joint is fixedly connected with an upper sealing block. The sealing block, the lower sealing block and the fixing piece are tightly connected to seal the upper connector and the lower connector, and the upper sealing block and the lower sealing block are meshed through the trapezoidal sealing ring groove and the trapezoidal sealing ring, so that the upper sealing block and the lower sealing block have a sealing effect; the trapezoid sealing ring groove and the trapezoid sealing ring are matched through the first sealing ring and the first sealing ring set, so that the sealing work of the trapezoid sealing ring groove and the trapezoid sealing ring is more stable, the sealing circular groove and the sealing circular ring play a role in insurance, the trapezoid sealing ring groove and the trapezoid sealing ring are prevented from losing efficacy, and the advantage of high sealing performance is achieved; the circulation connector adopts the double-layer sealing assembly, when the main sealing assembly loses efficacy for a long time, the sealing assembly with the safety effect replaces the front side to work, and the use sealing performance of the connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circulation joints, in particular to a circulation joint with a sealing structure. Background Technique

[0002] During the oilfield development process, a circulation joint is required. The patent publication number is CN216843561U, which discloses a circulation joint with a sealing structure, including a first joint and a second joint. The first joint is provided with a first external thread on the outside, and a sealing structure is provided at the bottom of the first joint. At the same time, fixing components are provided on both sides of the sealing structure. The second joint is connected to the first joint through the sealing structure and the fixing components, and a second external thread is provided on the outside of the second joint. This circulation joint with a sealing structure is provided with a sealing structure and fixing components. The sealing structure greatly improves the sealing performance of the circulation joint through the setting of the first rubber sealing pad and the second rubber sealing pad, facilitating the better use of the circulation joint. The fixing components facilitate the fixation of the first joint and the second joint through bolt fasteners. This fixing method is relatively simple, with a good fixing effect, facilitating the disassembly and installation of the circulation joint, and greatly improving the installation efficiency and effect of the circulation joint.

[0003] The above prior art solution has the following defects: The circulation joint uses a sealing pad and a sealing groove to cooperate with the sealing structure to seal the joints on both sides. The sealing pad and the sealing groove are a single set of sealing components. When the joint is used for a long time, the sealing pad and the sealing groove bear the working pressure for a long time, which will accelerate the aging of the sealing pad and the sealing groove. When the sealing pad and the sealing groove are aged, their sealing performance will be greatly reduced, resulting in extremely unstable sealing performance during the long-term use of the joint and reducing the sealing performance of the joint. Content of the Utility Model

[0004] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a circulation joint with a sealing structure, which has the advantage of high sealing performance, and solves the problem that the circulation joint uses a sealing pad and a sealing groove to cooperate with the sealing structure to seal the joints on both sides. The sealing pad and the sealing groove are a single set of sealing components. When the joint is used for a long time, the sealing pad and the sealing groove bear the working pressure for a long time, which will accelerate the aging of the sealing pad and the sealing groove. When the sealing pad and the sealing groove are aged, their sealing performance will be greatly reduced, resulting in extremely unstable sealing performance during the long-term use of the joint and reducing the sealing performance of the joint.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A circulating joint with a sealing structure, including an upper joint, a lower joint is arranged at the bottom of the upper joint, an upper sealing block is fixedly connected to the surface of the upper joint, a lower sealing block is fixedly connected to the surface of the lower joint, a trapezoidal sealing ring groove is opened at the bottom of the upper sealing block, a trapezoidal sealing ring is arranged inside the trapezoidal sealing ring groove, the bottom of the trapezoidal sealing ring is fixedly connected to the top of the lower sealing block, a sealing ring I is fixedly connected to the top of the inner wall of the trapezoidal sealing ring groove, a sealing ring group I is fixedly connected to the inner wall of the trapezoidal sealing ring groove, the surfaces of the sealing ring group I and the sealing ring I are both in contact with the surface of the trapezoidal sealing ring, an insurance sealing mechanism is arranged outside the trapezoidal sealing ring, and fixing pieces are fixedly installed on the surfaces of the upper joint and the lower joint.

[0006] Preferably, the insurance sealing mechanism includes a sealing circular groove, the sealing circular groove is opened at the top of the lower sealing block, a sealing ring is arranged inside the sealing circular groove, the top of the sealing ring is fixedly connected to the bottom of the upper sealing block, a sealing ring group II is fixedly connected to the inner wall of the sealing circular groove, a sealing ring II is fixedly connected to the bottom of the inner wall of the sealing circular groove, and the surfaces of the sealing ring group II and the sealing ring II are both in contact with the surface of the sealing ring.

[0007] Preferably, encryption rings are fixedly connected to both the bottom of the upper sealing block and the top of the lower sealing block, and the encryption rings are located outside the lower joint.

[0008] Preferably, reinforcing rings are fixedly connected to both the surfaces of the upper sealing block and the lower sealing block, and the surfaces of the reinforcing rings are fixedly connected to the surfaces of the upper joint and the lower joint.

[0009] Preferably, structure rings are fixedly connected to both the surfaces of the upper sealing block and the lower sealing block, and the structure rings are located outside the upper joint and the lower joint.

[0010] Preferably, anti-slip grooves are opened on both the surfaces of the upper sealing block and the lower sealing block, and the anti-slip grooves are located outside the structure rings.

[0011] Preferably, rounded corners are opened on both the surfaces of the upper sealing block and the lower sealing block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The utility model seals the upper joint and the lower joint through the tight connection of the sealing block, the lower sealing block and the fixing piece. The upper sealing block and the lower sealing block achieve the sealing effect through the engagement of the trapezoidal sealing ring groove and the trapezoidal sealing ring. The trapezoidal sealing ring groove and the trapezoidal sealing ring are more stable in sealing work through the cooperation of the first sealing ring and the first sealing ring group. The sealing circular groove and the sealing circular ring play an insurance role to prevent the trapezoidal sealing ring groove and the trapezoidal sealing ring from failing, and have the advantage of high sealing performance. The circulating joint adopts a double-layer sealing component. When the main sealing component fails after years of use, the sealing component that plays an insurance role replaces the front-side work, improving the sealing performance of the joint during use.

[0014] 2. By setting an insurance sealing mechanism, the utility model can perform secondary sealing on the upper joint and the lower joint, avoiding the leakage of materials from the upper joint and the lower joint caused by the failure of the trapezoidal sealing ring groove and the trapezoidal sealing ring during long-term use, and improving the sealing safety of the upper joint and the lower joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 is a three-dimensional sectional view of the upper sealing block of the utility model;

[0017] Figure 3 is the utility model Figure 3 The enlarged structural diagram at A in.

[0018] In the figure: 1. Upper joint; 2. Lower joint; 3. Upper sealing block; 4. Lower sealing block; 5. Trapezoidal sealing ring groove; 6. Trapezoidal sealing ring; 7. First sealing ring; 8. First sealing ring group; 9. Insurance sealing mechanism; 91. Sealing circular groove; 92. Sealing circular ring; 93. Second sealing ring group; 94. Second sealing ring; 10. Fixing piece; 11. Encryption ring; 12. Reinforcing ring; 13. Structural ring; 14. Anti-slip groove; 15. Rounding angle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the utility model.

[0020] Such as Figures 1 to 3As shown in the figure, a circulating joint with a sealing structure provided by the present utility model includes an upper joint 1. A lower joint 2 is provided at the bottom of the upper joint 1. An upper sealing block 3 is fixedly connected to the surface of the upper joint 1. A lower sealing block 4 is fixedly connected to the surface of the lower joint 2. A trapezoidal sealing ring groove 5 is formed at the bottom of the upper sealing block 3. A trapezoidal sealing ring 6 is arranged inside the trapezoidal sealing ring groove 5. The bottom of the trapezoidal sealing ring 6 is fixedly connected to the top of the lower sealing block 4. A sealing ring one 7 is fixedly connected to the top of the inner wall of the trapezoidal sealing ring groove 5. A sealing ring group one 8 is fixedly connected to the inner wall of the trapezoidal sealing ring groove 5. The surfaces of the sealing ring group one 8 and the sealing ring one 7 are both in contact with the surface of the trapezoidal sealing ring 6. An insurance sealing mechanism 9 is arranged outside the trapezoidal sealing ring 6. Fixing members 10 are fixedly installed on the surfaces of the upper joint 1 and the lower joint 2.

[0021] Reference Figure 3 , the insurance sealing mechanism 9 includes a sealing circular groove 91. The sealing circular groove 91 is formed at the top of the lower sealing block 4. A sealing circular ring 92 is arranged inside the sealing circular groove 91. The top of the sealing circular ring 92 is fixedly connected to the bottom of the upper sealing block 3. A sealing ring group two 93 is fixedly connected to the inner wall of the sealing circular groove 91. A sealing ring two 94 is fixedly connected to the bottom of the inner wall of the sealing circular groove 91. The surfaces of the sealing ring group two 93 and the sealing ring two 94 are both in contact with the surface of the sealing circular ring 92.

[0022] As a technical optimization scheme of the present utility model, by arranging the insurance sealing mechanism 9, the upper joint 1 and the lower joint 2 can be secondarily sealed, avoiding the leakage of materials from the upper joint 1 and the lower joint 2 when the trapezoidal sealing ring groove 5 and the trapezoidal sealing ring 6 fail after long-term use, and improving the sealing safety of the upper joint 1 and the lower joint 2.

[0023] Reference Figure 3 , encryption rings 11 are fixedly connected to the bottom of the upper sealing block 3 and the top of the lower sealing block 4. The encryption rings 11 are located outside the lower joint 2.

[0024] As a technical optimization scheme of the present utility model, by arranging the encryption rings 11, the upper joint 1 and the lower joint 2 can be assisted in sealing, avoiding the sealing circular groove 91 and the sealing circular ring 92 from bearing all the sealing pressures, and improving the use effects of the sealing circular groove 91 and the sealing circular ring 92.

[0025] Reference Figure 1 , reinforcing rings 12 are fixedly connected to the surfaces of the upper sealing block 3 and the lower sealing block 4. The surfaces of the reinforcing rings 12 are fixedly connected to the surfaces of the upper joint 1 and the lower joint 2.

[0026] As a technical optimization solution of the present utility model, by providing a reinforcing ring 12, the connection between the upper sealing block 3 and the lower sealing block 4 and the upper joint 1 and the lower joint 2 can be reinforced, preventing the upper sealing block 3 from breaking during the use with the upper joint 1, avoiding the inability to cooperate between the upper sealing block 3 and the upper joint 1, and improving the use effect of the upper sealing block 3 and the upper joint 1.

[0027] Reference Figure 3 , structural rings 13 are fixedly connected to the surfaces of the upper sealing block 3 and the lower sealing block 4, and the structural rings 13 are located outside the upper joint 1 and the lower joint 2.

[0028] As a technical optimization solution of the present utility model, by providing the structural rings 13, the structural strength of the upper sealing block 3 and the lower sealing block 4 can be enhanced, preventing the upper sealing block 3 and the lower sealing block 4 from deforming during long-term use and becoming unable to be used properly, and improving the use stability of the upper sealing block 3 and the lower sealing block 4.

[0029] Reference Figure 2 , anti-slip grooves 14 are formed on the surfaces of the upper sealing block 3 and the lower sealing block 4, and the anti-slip grooves 14 are located outside the structural rings 13.

[0030] As a technical optimization solution of the present utility model, by providing the anti-slip grooves 14, the surface roughness of the lower sealing block 4 can be increased, avoiding the difficulty for the user to firmly hold the lower sealing block 4, and improving the disassembly and installation speed of the lower sealing block 4.

[0031] Reference Figure 2 , rounded corners 15 are formed on the surfaces of the upper sealing block 3 and the lower sealing block 4.

[0032] As a technical optimization solution of the present utility model, by providing the rounded corners 15, the sharp chamfers on the surface of the lower sealing block 4 can be softened, avoiding the user being cut by the edges and corners of the lower sealing block 4 when holding the lower sealing block 4 tightly, and improving the holding safety of the lower sealing block 4.

[0033] Working principle and usage process of the present utility model: When in use, in the figure, the upper joint 1 and the lower joint 2 are in a tightly connected state with the upper sealing block 3, the lower sealing block 4 and the fixing member 10. The upper sealing block 3 and the lower sealing block 4 are engaged through the trapezoidal sealing ring groove 5 and the trapezoidal sealing ring 6, so that the upper sealing block 3 and the lower sealing block 4 play a sealing effect. The trapezoidal sealing ring groove 5 and the trapezoidal sealing ring 6 are cooperated with the sealing ring 7 and the sealing ring group 8, making the sealing work of the trapezoidal sealing ring groove 5 and the trapezoidal sealing ring 6 more stable. The sealing circular groove 91 and the sealing circular ring 92 play an insurance role to prevent the trapezoidal sealing ring groove 5 and the trapezoidal sealing ring 6 from failing. Through the cooperation of the sealing ring group 93 and the sealing ring 94, the fine gap between the sealing circular groove 91 and the sealing circular ring 92 can be filled, making the sealing performance of the insurance sealing mechanism 9 equivalent to that of the trapezoidal sealing ring groove 5 and the trapezoidal sealing ring 6, thus having the advantage of high sealing performance.

[0034] In summary, for the circulating joint with a sealing structure, through the combined use of the upper joint 1, the lower joint 2, the upper sealing block 3, the lower sealing block 4, the trapezoidal sealing ring groove 5, the trapezoidal sealing ring 6, the sealing ring 7, the sealing ring group 8 and the insurance sealing mechanism 9, it solves the problem that the circulating joint uses a sealing structure with a sealing pad and a sealing card slot to seal the two sides of the joint. The sealing pad and the sealing card slot are single-group sealing components. When the joint is used for a long time, the sealing pad and the sealing card slot bear the working pressure for a long time, which will accelerate the aging of the sealing pad and the sealing card slot. When the sealing pad and the sealing card slot are aged, their sealing performance will be greatly reduced, resulting in extremely unstable sealing performance during the long-term use of the joint and reducing the sealing performance of the joint in use.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A circulation joint with a sealing structure, comprising an upper joint (1), characterized in that: A lower joint (2) is provided at the bottom of the upper joint (1), an upper sealing block (3) is fixedly connected to the surface of the upper joint (1), a lower sealing block (4) is fixedly connected to the surface of the lower joint (2), a trapezoidal sealing ring groove (5) is provided at the bottom of the upper sealing block (3), a trapezoidal sealing ring (6) is provided inside the trapezoidal sealing ring groove (5), the bottom of the trapezoidal sealing ring (6) is fixedly connected to the top of the lower sealing block (4), a sealing ring 1 (7) is fixedly connected to the top of the inner wall of the trapezoidal sealing ring groove (5), a sealing ring group 1 (8) is fixedly connected to the inner wall of the trapezoidal sealing ring groove (5), the surfaces of the sealing ring group 1 (8) and the sealing ring 1 (7) are in contact with the surface of the trapezoidal sealing ring (6), a safety sealing mechanism (9) is provided on the outer side of the trapezoidal sealing ring (6), and fixing parts (10) are fixedly installed on the surfaces of the upper joint (1) and the lower joint (2).

2. A circulation joint with a sealing structure according to claim 1, characterized in that: The safety sealing mechanism (9) comprises a sealing circular groove (91), the sealing circular groove (91) being opened at the top of the lower sealing block (4), a sealing circular ring (92) being arranged inside the sealing circular groove (91), the top of the sealing circular ring (92) being fixedly connected to the bottom of the upper sealing block (3), a sealing ring group 2 (93) being fixedly connected to the inner wall of the sealing circular groove (91), a sealing ring 2 (94) being fixedly connected to the bottom of the inner wall of the sealing circular groove (91), and the surfaces of the sealing ring group 2 (93) and the sealing ring 2 (94) both being in contact with the surface of the sealing circular ring (92).

3. The circulation joint with a sealing structure according to claim 1, characterized in that: The bottom of the upper sealing block (3) and the top of the lower sealing block (4) are both fixedly connected with an encryption ring (11), and the encryption ring (11) is located on the outside of the lower joint (2).

4. The circulation joint with a sealing structure according to claim 1, characterized in that: The surfaces of the upper sealing block (3) and the lower sealing block (4) are both fixedly connected with reinforcement rings (12), and the surfaces of the reinforcement rings (12) are fixedly connected to the surfaces of the upper joint (1) and the lower joint (2).

5. The circulation joint with a sealing structure according to claim 1, characterized in that: The surfaces of the upper sealing block (3) and the lower sealing block (4) are both fixedly connected with a structural ring (13), and the structural ring (13) is located outside the upper joint (1) and the lower joint (2).

6. The circulation joint with a sealing structure according to claim 1, characterized in that: Anti-skid grooves (14) are provided on the surfaces of the upper sealing block (3) and the lower sealing block (4), and the anti-skid grooves (14) are located outside the structural ring (13).

7. The circulation joint with a sealing structure according to claim 1, characterized in that: The surfaces of the upper sealing block (3) and the lower sealing block (4) are both provided with rounded corners (15).

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