Waterproof guide pipe with locking and fixing device

Abstract

The utility model belongs to the technical field of petroleum machinery, and particularly relates to a waterproof guide pipe with a locking and fixing device, which comprises a waterproof guide pipe, a locking and fixing structure connected to the outer surface of the waterproof guide pipe, an anti-slip structure mounted in the middle of the top surface of the locking and fixing structure, and a connecting structure mounted close to the bottom of the locking and fixing structure. The locking and fixing structure comprises a locking unit and a damping unit, the locking unit is mounted at the top of the damping unit, the damping unit comprises a buffer seat, a damping rod is mounted in the buffer seat, a lifting plate is mounted at the top end of the damping rod, sliding blocks are mounted in the middles of the left side and the right side of the lifting plate, and guide rails are connected to the outer surfaces of the sliding blocks. According to the waterproof guide pipe with the locking and fixing device, damping rods are installed in the buffer seats, and sliding blocks installed in the middles of the left side and the right side of the lifting plate slide in the guide rails, so that the waterproof guide pipe can be damped through the damping rods in the transportation process, and the waterproof guide pipe is effectively fixed and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of oil machinery, in particular to a marine riser with a locking and fixing device. Background Technique

[0002] At present, due to the relatively harsh environment and complex working conditions in the splash zone at sea, the anti-corrosion requirements for marine risers used in the splash zone are very high. The anti-corrosion coating is manufactured according to a special anti-corrosion process, and the coating thickness can reach 1000 μm. The special anti-corrosion layer marine riser plays a relatively important role in the entire pipe string. Therefore, the protection work in each link before the special anti-corrosion layer marine riser is used on the platform is crucial.

[0003] Since the length of the marine riser is about 12 meters, the weight is about 10 tons, and the wall thickness is about 38 mm. Due to the long pipe length and large weight, machines are usually used for hoisting. During the hoisting process, bumps and scratches are likely to occur. Especially during road transportation and shipping, it will cause the marine riser to be jolted, rubbed, vibrated, and collided, which is likely to damage the anti-corrosion coating of the marine riser and cannot guarantee the integrity of the anti-corrosion layer of the marine riser.

[0004] As disclosed in a protection device for a marine riser in Chinese Patent CN217151857U, through a bearing frame, a locking frame and a connecting member, the connecting member is detachably connected to the bearing frame and the locking frame respectively; a protection space is formed between the bearing frame and the locking frame, the marine riser can pass through the protection space and lean against the bearing frame, and the locking frame can reciprocate along the connecting member to lock the marine riser between the locking frame and the bearing frame; at least two protection devices are provided, and at least two protection devices are arranged in parallel along the extension direction of the marine riser. It can play a protective role for marine risers of different sizes and is convenient for disassembly, assembly and storage.

[0005] However, the fixing device for the marine riser used in the above-mentioned comparative document lacks a shock-absorbing protection device for the marine riser during the hoisting or transportation of the marine riser, and it is easy to cause damage to the marine riser during the jolting process.

[0006] Therefore, we urgently need to provide a marine riser with a locking and fixing device. Content of the Utility Model

[0007] The purpose of the utility model is to provide a marine riser with a locking and fixing device to solve the problem in the prior art that during the hoisting or transportation of the marine riser, there is a lack of a shock-absorbing protection device for the marine riser, and it is easy to cause damage to the marine riser during the jolting process.

[0008] To achieve the above object, the present utility model provides the following technical solutions: a riser pipe with a locking and fixing device, including a riser pipe, a locking and fixing structure is connected to the outer surface of the riser pipe, an anti-slip structure is installed in the middle of the top surface of the locking and fixing structure, and a connecting structure is installed near the bottom of the locking and fixing structure.

[0009] The locking and fixing structure includes a locking unit and a shock absorption unit, and the locking unit is installed on the top of the shock absorption unit.

[0010] The shock absorption unit includes a buffer seat, a damping rod is installed inside the buffer seat, a lifting plate is installed at the top end of the damping rod, sliding blocks are installed in the middle of the left and right sides of the lifting plate, and guide rails are connected to the outer surface of the sliding blocks.

[0011] Preferably, the locking unit includes a connecting rod, a base is connected to the bottom of the outer surface of the connecting rod, a pressing block is connected to the outer surface of the connecting rod near the top end, and a locking nut is threadedly connected to the top end of the outer surface of the connecting rod.

[0012] Preferably, the bottom end of the connecting rod is fixedly connected to the top surface of the lifting plate, the outer surface of the lifting plate is slidably connected to the inner wall of the buffer seat, the guide rails are fixedly installed in the middle of the left and right sides inside the buffer seat, the outer surface of the sliding block is slidably connected to the inner wall of the convex-shaped chute opened in the middle of the guide rail, and the inner walls of the arc-shaped grooves opened in the middle of the top surface of the base and the bottom surface of the pressing block are in contact with the outer surface of the riser pipe. Through holes are opened in the inner walls of the middle of the front and back ends of the top surface of the base and the pressing block, and the outer surface of the connecting rod slides through the inner walls of the through holes. The bottom surface of the locking nut is in contact with the top surface of the pressing block.

[0013] Preferably, the anti-slip structure includes a guide rod, a support seat is installed on the outer surface of the guide rod, a rectangular groove is opened on the top surface of the guide rod, a limiting block is installed inside the rectangular groove, and a buffer pad is installed in the middle of the top surface of the support seat.

[0014] Preferably, the bottom surface of the guide rod is fixedly connected to the middle of the top surface of the lifting plate, the outer surface of the limiting block is in contact with the middle of the left and right sides of the support seat, and the outer surface of the buffer pad is in contact with the outer surface of the riser pipe. A convex-shaped groove is opened in the inner wall of the middle of the bottom surface of the support seat, and the outer surface of the guide rod slides through the inner wall of the convex-shaped groove.

[0015] Preferably, the connecting structure includes a connecting plate, rotating shafts are arranged on the front and back of the connecting plate, and a mounting plate is fixedly installed at one end of the rotating shaft.

[0016] Preferably, the connecting plate is fixedly installed at the bottom of the left and right sides of the buffer seat near one end of the front and the back. The outer surface of the rotating shaft is rotatably connected to the inner walls of the rotating holes opened on the front and back of the buffer seat. The mounting plate is fixedly installed at one end of the rotating shaft located outside the buffer seat. A threaded hole is opened in the middle of the top surface of the connecting plate. The mounting plate is an L-shaped plate, and a threaded through hole is opened in the middle of one end of the mounting plate away from the rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. For the riser with a locking and fixing device, through the setting of the locking and fixing structure, by using the damping rod installed inside the buffer seat and the sliding of the sliding blocks installed in the middle of the left and right sides of the lifting plate inside the guide rails, the riser can be shock-absorbed by the damping rod during transportation, so as to effectively fix and protect the riser.

[0019] 2. For the riser with a locking and fixing device, through the setting of the anti-slip structure and the connection structure, while the buffer pad installed on the top of the support seat can protect the riser, the friction force of the buffer pad can effectively prevent the sliding of the riser during transportation. The installation of the connecting plate and the mounting plate facilitates its connection and fixed installation, making the riser more stable during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall external structure of the present utility model;

[0021] Figure 2 is an enlarged view of the fixed locking structure of the present utility model;

[0022] Figure 3 is an enlarged view of the internal structure of the buffer protection structure of the present utility model;

[0023] Figure 4 is an enlarged view of the anti-slip and stable structure of the present utility model.

[0024] In the figure: 1, riser; 101, buffer seat; 102, damping rod; 103, lifting plate; 104, sliding block; 105, guide rail; 106, connecting rod; 107, base; 108, pressing block; 109, locking nut; 201, guide rod; 202, support seat; 203, limit block; 204, buffer pad; 301, connecting plate; 302, rotating shaft; 303, mounting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4 , the present utility model provides a technical solution: Embodiment

[0027] A riser pipe with a locking and fixing device, including a riser pipe 1, a locking and fixing structure is connected to the outer surface of the riser pipe 1, an anti-slip structure is installed in the middle of the top surface of the locking and fixing structure, and a connecting structure is installed near the bottom of the locking and fixing structure.

[0028] The locking and fixing structure includes a locking unit and a shock-absorbing unit. The locking unit is installed on the top of the shock-absorbing unit. The shock-absorbing unit includes a buffer seat 101, a damping rod 102 is installed inside the buffer seat 101, a lifting plate 103 is installed at the top of the damping rod 102, sliding blocks 104 are installed in the middle of the left and right sides of the lifting plate 103, and guide rails 105 are connected to the outer surfaces of the sliding blocks 104. The locking unit includes a connecting rod 106, a base 107 is connected to the bottom of the outer surface of the connecting rod 106, a pressing block 108 is connected to the outer surface of the connecting rod 106 near the top, and a locking nut 109 is threadedly connected to the top of the outer surface of the connecting rod 106.

[0029] The bottom end of the connecting rod 106 is fixedly connected to the top surface of the lifting plate 103. The outer surface of the lifting plate 103 is slidably connected to the inner wall of the buffer seat 101. The guide rails 105 are fixedly installed in the middle of the left and right sides inside the buffer seat 101. The outer surface of the sliding block 104 is slidably connected to the inner wall of the convex chute opened in the middle of the guide rail 105. The inner walls of the arc-shaped grooves opened in the middle of the top surface of the base 107 and the bottom surface of the pressing block 108 are in contact with the outer surface of the riser pipe 1.

[0030] Through the setting of the locking and fixing structure, by using the damping rod 102 installed inside the buffer seat 101 and the sliding of the sliding blocks 104 installed in the middle of the left and right sides of the lifting plate 103 inside the guide rails 105, the riser pipe 1 can be shock-absorbed by the damping rod 102 during transportation, so as to effectively fix and protect the riser pipe 1.

[0031] When locking and fixing the riser 1, place the riser 1 inside the arc groove opened in the middle of the top surface of the base 107. Then connect the lower pressing block 108 to the top end of the connecting rod 106, and limit the lower pressing block 108 through the threaded connection between the locking nut 109 and the top end of the connecting rod 106. Thus, the riser 1 is locked and fixed by the base 107 and the lower pressing block 108. During transportation, the riser 1 presses the damping rod 102 through the lifting plate 103, and the lifting plate 103 is slidably connected to the inner wall of the buffer seat 101, and the sliding block 104 is slidably and limitedly connected to the inner convex chute opened in the guide rail 105. Thus, the damping rod 102 is used to carry out shock absorption and protection for it, ensuring the protection and shock absorption effects of the riser 1 during transportation. Embodiment

[0032] On the basis of Embodiment 1, the anti-slip structure includes a guide rod 201. A support seat 202 is installed on the outer surface of the guide rod 201. A rectangular groove is opened on the top surface of the guide rod 201, and a limit block 203 is installed inside the rectangular groove. A buffer pad 204 is installed in the middle of the top surface of the support seat 202. The bottom surface of the guide rod 201 is fixedly connected to the middle of the top surface of the lifting plate 103. The outer surface of the limit block 203 abuts against the middle parts of the left and right sides of the support seat 202. The outer surface of the buffer pad 204 abuts against the outer surface of the riser 1.

[0033] The connection structure includes a connecting plate 301. Rotating shafts 302 are arranged on the front and back surfaces of the connecting plate 301. A mounting plate 303 is fixedly installed at one end of the rotating shaft 302. The connecting plate 301 is fixedly installed at one end close to the front and back of the bottom parts on the left and right sides of the buffer seat 101. The outer surface of the rotating shaft 302 is rotatably connected to the inner wall of the rotating holes opened on the front and back surfaces of the buffer seat 101. The mounting plate 303 is fixedly installed at the end of the rotating shaft 302 located outside the buffer seat 101.

[0034] Through the settings of the anti-slip structure and the connection structure, while the buffer pad 204 installed on the top of the support seat 202 can protect the riser 1, the friction force of the buffer pad 204 effectively prevents the riser 1 from sliding during transportation. The installation of the connecting plate 301 and the mounting plate 303 facilitates the connection and fixed installation of it, making the riser 1 more stable during transportation.

[0035] Before the protective installation of the riser 1, the sliding connection between the inner wall of the convex groove formed on the bottom surface of the support base 202 and the outer surface of the guide rod 201 is utilized. At the same time, the limit block 203 is installed inside the rectangular groove formed on the top surface of the guide rod 201, so as to limit the support base 202 by means of the limit block 203. Thus, the outer surface of the riser 1 is protected and cushioned by the buffer pad 204, and the riser 1 is anti-slid by the frictional force of the buffer pad 204, thereby ensuring the stability of the riser 1. At the same time, during transportation, the connection and fixation between the connecting plate 301 and the mounting plate 303 and the transportation equipment can be utilized, so as to fully ensure the stability of the riser 1 and the protective effect on the riser 1.

[0036] 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 comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A marine riser with a locking and fixing device, comprising a marine riser (1), characterized in that: A locking and fixing structure is connected to the outer surface of the riser (1). An anti-slip structure is installed in the middle of the top surface of the locking and fixing structure, and a connecting structure is installed near the bottom of the locking and fixing structure; The locking and fixing structure includes a locking unit and a shock-absorbing unit, and the locking unit is installed on the top of the shock-absorbing unit; The shock-absorbing unit includes a buffer seat (101). A damping rod (102) is installed inside the buffer seat (101). The top of the damping rod (102) is installed with a lifting plate (103). The middle parts of the left and right sides of the lifting plate (103) are installed with sliding blocks (104). The outer surface of the sliding block (104) is connected with a guide rail (105).

2. The riser with a locking and fixing device according to claim 1, wherein: The locking unit includes a connecting rod (106). The bottom of the outer surface of the connecting rod (106) is connected with a base (107). The outer surface of the connecting rod (106) near the top is connected with a pressing block (108). The top of the outer surface of the connecting rod (106) is threadedly connected with a locking nut (109).

3. The marine riser with a locking and fixing device according to claim 2, characterized in that: The bottom end of the connecting rod (106) is fixedly connected to the top surface of the lifting plate (103). The outer surface of the lifting plate (103) is slidably connected to the inner wall of the buffer seat (101). The guide rail (105) is fixedly installed in the middle of the left and right sides inside the buffer seat (101). The outer surface of the sliding block (104) is slidably connected to the inner wall of the convex-shaped chute opened in the middle of the guide rail (105). The inner walls of the arc-shaped grooves opened in the middle of the top surface of the base (107) and the bottom surface of the pressing block (108) are in contact with the outer surface of the riser (1).

4. A marine riser with a locking and fixing device according to claim 1, characterized in that: The anti-slip structure includes a guide rod (201). A support seat (202) is installed on the outer surface of the guide rod (201). A rectangular groove is opened on the top surface of the guide rod (201). A limit block (203) is installed inside the rectangular groove. A buffer pad (204) is installed in the middle of the top surface of the support seat (202).

5. The marine riser with a locking and fixing device according to claim 4, characterized in that: The bottom surface of the guide rod (201) is fixedly connected to the middle of the top surface of the lifting plate (103). The outer surface of the limit block (203) is in contact with the middle parts of the left and right sides of the support seat (202). The outer surface of the buffer pad (204) is in contact with the outer surface of the riser (1).

6. The marine riser with a locking and fixing device according to claim 1, characterized in that: The connecting structure includes a connecting plate (301). Rotating shafts (302) are arranged on the front and back surfaces of the connecting plate (301). One end of the rotating shaft (302) is fixedly installed with a mounting plate (303).

7. The marine riser with a locking and fixing device according to claim 6, wherein: The connecting plate (301) is fixedly installed at one end near the front and back of the bottom of the left and right sides of the buffer seat (101). The outer surface of the rotating shaft (302) is rotatably connected to the inner wall of the rotating hole opened on the front and back surfaces of the buffer seat (101). The mounting plate (303) is fixedly installed at one end of the rotating shaft (302) outside the buffer seat (101).

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