Pipe clamp for ocean platform

Abstract

The invention discloses a pipe clamp for an ocean platform, and particularly relates to the technical field of pipe clamps, the pipe clamp comprises a first support, a second support and a pressing plate, an air groove is formed in the pressing plate, a pressing strip is arranged at the lower end of the pressing plate, and the pressing strip can extrude air in the air groove through sliding; a first wedge-shaped block and a second wedge-shaped block are arranged in the pressing strip, the first wedge-shaped block and the second wedge-shaped block are meshed with each other, and the second wedge-shaped block can move to enable the pressure of the pressing strip to be kept stable; according to the pipe clamp, the second wedge-shaped block and the first wedge-shaped block are matched with each other, the pressure of the pipe clamp on a pipeline is adjusted, meanwhile, the pressure on the pipeline is reduced when the temperature of the pipeline rises, and the situation that the pipeline is damaged due to the fact that the pressure borne by the pipeline is too large is prevented. Therefore, the phenomena of pipeline deformation, pipeline surface damage and fracture are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe clamps, and more particularly to a pipe clamp for an offshore platform. Background Art

[0002] Pipe clamps are mechanical components used to fix and support pipes, and are widely used in many industries such as petroleum, chemical, shipbuilding, and marine engineering. They use fasteners to firmly mount pipes on structural frames or supports to ensure the stability and safety of the pipeline system.

[0003] As a key infrastructure for the development of marine resources, the safe and stable operation of the pipeline system of the offshore platform is of vital importance. In the complex and harsh marine environment, factors such as high temperature, high pressure, frequent vibration and shock are intertwined.

[0004] However, when using pipe clamps to fix pipelines, clamping too tightly will cause excessive pressure on the pipeline, which may cause deformation and rupture of the pipeline; if clamping too loosely, the pipe clamp cannot firmly fix the pipeline, and the pipeline is easy to loosen and shift. If the pipe clamp is offset from the pipeline during installation, it will cause uneven stress distribution on the pipeline, and the vibration and impact of the pipeline during operation will cause serious wear on the contact point. Therefore, the clamping position of the pipe clamp needs to be concentric with the pipeline to ensure the stability of the pipeline during use. At the same time, the pipeline will expand due to heat in a high-temperature working environment. When the pipeline expands due to heat, the clamping force of the pipe clamp is too large, which will cause stress concentration and easily cause the pipeline to rupture. Therefore, the present invention proposes a pipe clamp for an offshore platform to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a pipe clamp for an offshore platform to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A pipe clamp for an offshore platform, comprising: a first bracket, a second bracket and a pressure plate, wherein an air groove is provided inside the pressure plate, and a pressure strip is provided at the lower end of the pressure plate, and the pressure strip can squeeze the gas inside the air groove by sliding; a first wedge block and a second wedge block are provided inside the pressure strip, the first wedge block and the second wedge block are meshed with each other, and the second wedge block can keep the pressure of the pressure strip stable by moving; a buffer cavity is provided inside the pressure plate, and a partition is provided inside the buffer cavity, and the partition can change the volume of the buffer cavity by sliding.

[0007] Preferably, an elastic connector is provided at one end of the pressing plate, and a positioning block is slidably connected to the side wall of the elastic connector, so that the positioning block can contact the surface of the workpiece before the pressure strip when the workpiece is installed.

[0008] Preferably, a plurality of air cylinders are provided inside the air groove, each of the air cylinders is slidably connected to a piston plate, one end of each piston plate is fixedly connected to a piston rod, and one end of each piston rod extending out of the air cylinder is fixedly connected to the first wedge block.

[0009] Preferably, an adjustment groove is provided inside the pressure strip, the second wedge block is slidably connected to the inner wall of the adjustment groove, a first elastic member is provided inside the adjustment groove, one end of the first elastic member is fixedly connected to the second wedge block, the other end of the first elastic member is fixedly connected to the inner wall of the adjustment groove, the second wedge block is fixedly connected to a guide rod at one end away from the first elastic member, and the guide rod extends out of the adjustment groove at one end away from the second wedge block and contacts with the surface of the pressure plate close to one end of the pressure strip, the surface of the pressure plate in contact with the guide rod is a wedge-shaped surface, the wedge surface is composed of a straight surface and an inclined surface, and the straight surface is parallel to the end surface of the pressure strip close to the guide rod.

[0010] Preferably, a sliding groove is provided on the side wall of the elastic connecting head close to the pressure plate, one end of the positioning block is slidably connected to the side wall of the sliding groove, a second elastic member is arranged in the sliding groove, one end of the second elastic member is fixedly connected to the inner top wall of the sliding groove, the other end of the second elastic member is fixedly connected to one end of the positioning block, a heat conducting block is fixedly connected to the inside of the end of the positioning block away from the sliding groove, a first heat conducting pipe is provided in the interior of the positioning block, and one end of the first heat conducting pipe is in contact with the surface of the heat conducting block.

[0011] Preferably, the air groove is connected to the buffer chamber through a pipeline, a rotating shaft is rotatably connected in the buffer chamber, the rotating shaft passes through a partition, the partition is threadedly connected to the rotating shaft, a spiral groove is opened inside the rotating shaft, and a transmission column is slidably connected in the spiral groove.

[0012] Preferably, a second heat conducting pipe is provided in the pressure plate, a guide column is slidably connected inside the second heat conducting pipe, one end of the guide column is fixedly connected to the transmission column, and the first heat conducting pipe is connected to the second heat conducting pipe through a ventilation pipe.

[0013] Preferably, one end of the pressure plate is rotatably connected to the first bracket via a rotating pin, a limiting piece is provided on the second bracket, the first bracket is provided with a limiting groove matching the limiting piece, and one end of the second bracket close to the limiting piece is rotatably connected to the first bracket via a rotating pin.

[0014] Preferably, a first limiting step is provided at one end of the elastic connector, and a plurality of second limiting steps matching the first limiting step are provided at one end of the second bracket away from the first bracket.

[0015] Preferably, there are at least two pressure strips symmetrically distributed at the bottom end of the pressure plate, and there are at least two first limiting steps symmetrically distributed at both sides of the elastic connector.

[0016] Technical effects and advantages of the present invention: 1. The present invention cooperates with the first wedge block to prevent the pipeline from being subjected to excessive pressure due to excessive pressing during the installation process, thereby causing deformation of the pipeline and damage to the pipeline surface. At the same time, it prevents the pipeline from being deformed or broken due to excessive clamping force.

[0017] 2. The present invention uses a positioning block to position the pipeline in advance during the process of clamping the pipeline, thereby preventing the pipe clamp from shifting when clamping the pipeline, and avoiding the problem of excessive wear at the contact point between the pipeline and the pipe clamp due to uneven stress distribution on the pipeline.

[0018] 3. The present invention reduces the pressure on the pipeline when the temperature of the pipeline rises, thereby preventing the pipeline from expanding due to heat, causing the clamping force of the pipe clamp to be too large, thereby causing stress concentration and easily causing the pipeline to rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is an exploded view of the overall structure of the present invention.

[0021] Figure 3 It is a cross-sectional view of the layering structure of the present invention.

[0022] Figure 4 It is a cross-sectional view of the pressure plate structure of the present invention.

[0023] Figure 5 It is a cross-sectional view of the buffer cavity structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the first support frame structure of the present invention.

[0025] Figure 7 It is a schematic diagram of the second support frame structure of the present invention.

[0026] Figure 8 It is a cross-sectional view of the spiral groove structure of the present invention.

[0027] Fig. 9 This is a schematic diagram of the pipe clamp of the present invention in use.

[0028] The accompanying drawings are marked as follows: 1. first bracket; 11. limiting groove; 2. second bracket; 21. limiting member; 22. second limiting step; 3. pressure plate; 31. air groove; 311. air cylinder; 312. piston plate; 313. piston rod; 314. second heat-conducting pipe; 315. guide column; 316. transmission column; 32. pressure strip; 321. adjustment groove; 322. first elastic member; 323. guide rod; 33. first wedge block; 34. second wedge block; 35. buffer chamber; 351. partition; 352. rotating shaft; 353. spiral groove; 36. elastic connector; 361. slide groove; 362. first limiting step; 37. positioning block; 371. second elastic member; 372. heat-conducting block; 373. first heat-conducting pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1 In the actual production process, when installing and clamping the pipe, the pipe is subjected to excessive pressure due to excessive pressing force, thereby causing the pipe to deform and the pipe surface to be damaged. This embodiment is specially invented to solve the above problem.

[0031] See also Figure 1 and Figure 2 As shown, a pipe clamp for an offshore platform according to an embodiment of the present invention comprises a first bracket 1, a second bracket 2 and a pressing plate 3, Figure 3 As shown, the pressure plate 3 is provided with an air groove 31 inside, and a pressure strip 32 is provided at the lower end of the pressure plate 3. The pressure strip 32 can squeeze the gas inside the air groove 31 by sliding. A first wedge block 33 and a second wedge block 34 are provided inside the pressure strip 32. The first wedge block 33 and the second wedge block 34 are meshed with each other. The second wedge block 34 can keep the pressure of the pressure strip 32 stable by moving. Figure 5 As shown, a buffer cavity 35 is provided in the pressure plate 3 , and a partition 351 is provided in the buffer cavity 35 . The partition 351 can change the volume of the buffer cavity 35 by sliding, and there is compressed gas in the gas groove 31 .

[0032] See also Figure 4 and Fig. 9 As shown, an elastic connector 36 is provided at one end of the pressing plate 3, and a positioning block 37 is slidably connected to the side wall of the elastic connector 36. When the workpiece is installed, the positioning block 37 can contact the surface of the workpiece before the pressure strip 32.

[0033] See also Figure 3 As shown, a plurality of air cylinders 311 are provided inside the air groove 31, each of the air cylinders 311 is slidably connected to a piston plate 312, one end of each piston plate 312 is fixedly connected to a piston rod 313, and one end of each piston rod 313 extending out of the air cylinder 311 is fixedly connected to the first wedge block 33.

[0034] See also Figure 3 As shown, an adjustment groove 321 is provided inside the pressure strip 32, and the second wedge block 34 is slidably connected to the inner wall of the adjustment groove 321. A first elastic member 322 is provided inside the adjustment groove 321, one end of the first elastic member 322 is fixedly connected to the second wedge block 34, and the other end of the first elastic member 322 is fixedly connected to the inner wall of the adjustment groove 321. The end of the second wedge block 34 away from the first elastic member 322 is fixedly connected to a guide rod 323, and the end of the guide rod 323 away from the second wedge block 34 extends out of the adjustment groove 321 and contacts the surface of the pressure plate 3 close to the pressure strip 32, and the pressure plate 3 is combined with the pressure plate 3 to form a pressure plate 321. Figure 2 As shown, the surface where the pressure plate 3 contacts the guide rod 323 is a wedge-shaped surface, which is composed of a straight surface and an inclined surface, and the straight surface is parallel to the end surface of the pressure strip 32 close to the guide rod 323.

[0035] See also Figure 4 As shown, a slide groove 361 is provided on the side wall of the elastic connecting head 36 close to the pressure plate 3, one end of the positioning block 37 is slidably connected to the side wall of the slide groove 361, a second elastic member 371 is arranged in the slide groove 361, one end of the second elastic member 371 is fixedly connected to the inner top wall of the slide groove 361, the other end of the second elastic member 371 is fixedly connected to one end of the positioning block 37, a heat conducting block 372 is fixedly connected inside the end of the positioning block 37 away from the slide groove 361, a first heat conducting pipe 373 is provided inside the positioning block 37, and one end of the first heat conducting pipe 373 is in contact with the surface of the heat conducting block 372.

[0036] See also Figure 4 As shown, the air groove 31 is connected to the buffer chamber 35 through a pipeline, and a rotating shaft 352 is rotatably connected in the buffer chamber 35. The rotating shaft 352 passes through the partition 351, and the partition 351 is threadedly connected to the rotating shaft 352. Figure 8 As shown, a spiral groove 353 is defined inside the rotating shaft 352 , and a transmission column 316 is slidably connected inside the spiral groove 353 .

[0037] See also Figure 5 As shown, a second heat conducting pipe 314 is provided in the pressing plate 3, and a guide column 315 is slidably connected inside the second heat conducting pipe 314. Figure 8 As shown, one end of the guide column 315 is fixedly connected to the transmission column 316. Figure 4As shown, the first heat conducting pipe 373 is connected to the second heat conducting pipe 314 through a vent pipe, and heat expansion gas is provided inside the first heat conducting pipe 373 and the second heat conducting pipe 314 .

[0038] See also Figure 2 As shown, one end of the pressing plate 3 is rotatably connected to the first bracket 1 through a rotating pin. Figure 7 As shown, a limiting member 21 is provided on the second bracket 2, combined with Figure 6 As shown, the first bracket 1 is provided with a limiting groove 11 which matches with the limiting member 21, and the end of the second bracket 2 close to the limiting member 21 is rotatably connected with the first bracket 1 through a rotating pin. Fig. 9 As shown, a first limiting step 362 is provided at one end of the elastic connector 36, and a plurality of second limiting steps 22 matching the first limiting step 362 are provided at one end of the second bracket 2 away from the first bracket 1, and there are at least two pressure strips 32 symmetrically distributed at the bottom end of the pressure plate 3, and there are at least two first limiting steps 362 symmetrically distributed on both sides of the elastic connector 36.

[0039] When the second wedge block 312 is pressed against the first support 314, the guide rod 323 is moved along the wedge surface, and the first limit step 362 on the elastic connector 36 is located at the bottom end of the second limit step 22. When the guide rod 323 moves to the inclined surface of the wedge-shaped surface, the pressure plate 3 is continuously pressed to make the guide rod 323 move along the inclined surface of the wedge-shaped surface so that the second wedge block 34 slides inside the adjustment groove 321, and at the same time squeezes the first elastic member 322 so that the first elastic member 322 is compressed, and at the same time makes the first wedge block 33 move along the wedge surface of the second wedge block 34, so that the piston rod 313 drives the piston plate 312 to move away from the bottom end of the pressure plate 3, so that even if the pressure plate 3 is continued to be pressed, the gas inside the gas cylinder 311 will not continue to be compressed, so that the pressure on the pipeline will no longer increase, and the second wedge block 34 and the first wedge block 33 cooperate with each other to prevent the pipeline from being subjected to excessive pressure due to excessive pressing during the installation process, thereby causing deformation of the pipeline and damage to the pipeline surface, and at the same time prevent the pipeline from being deformed or ruptured due to excessive clamping force.

[0040] Embodiment 2 In actual use, it is found that when the pipe is installed, if the pipe is offset when the pipe clamp is clamped, it will cause uneven stress distribution on the pipe, and the vibration and impact of the pipe during operation will cause serious wear on the contact point. Further improvements are made on the basis of the above embodiments.

[0041] On the basis of the above embodiment, when in use, the pressure plate 3 is pressed so that the positioning block 37 contacts the surface of the pipe. At this time, the pressure strip 32 does not contact the surface of the pipe. At this time, the pressure plate 3 is continued to be pressed so that the positioning block 37 squeezes the pipe in the direction of the first bracket 1, so that the outer wall of the pipe fits with the first bracket 1. At this time, the pressure plate 3 is continued to be pressed so that the positioning block 37 slides inside the slide groove 361, so that the second elastic member 371 is compressed. When the pressure strip 32 contacts the surface of the pipe, the pressure strip 32 squeezes the pipe so that the pipe fits with the second bracket 2 and clamps the pipe at the same time. By using the positioning block 37 to position the pipe in advance during the process of clamping the pipe, the pipe clamp is prevented from being offset when clamping the pipe, and the problem of excessive wear at the contact between the pipe and the pipe clamp caused by uneven stress distribution on the pipe is avoided.

[0042] Embodiment 3 It is found in actual use that the pipeline will expand due to heat in a high-temperature working environment. When the pipeline expands due to heat, excessive clamping force of the pipe clamp will cause stress concentration and easily cause pipeline rupture. Further improvements are made on the basis of the above embodiments.

[0043] On the basis of the above embodiment, during use, when the pipe clamp clamps the pipe, the positioning block 37 contacts the pipe surface, so that the heat conductive block 372 contacts the pipe surface. When the pipe temperature rises, the temperature of the heat conductive block 372 rises, so that the heat expansion gas inside the first heat conductive pipe 373 and the second heat conductive pipe 314 expands, so that the guide column 315 drives the transmission column 316 to slide along the spiral groove 353 inside the rotating shaft 352, so that the rotating shaft 352 rotates, so that the partition plate 351 slides toward the end away from the second heat conductive pipe 314, so that the volume of the buffer chamber 35 becomes larger, so that the compression of the gas inside the gas groove 31 is reduced, so that the pressure of the pressure strip 32 on the pipe is reduced. By reducing the pressure on the pipe when the pipe temperature rises, it is prevented that the clamping force of the pipe clamp is too large due to the thermal expansion of the pipe, which leads to stress concentration and easily causes the pipe to rupture.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipe clamp for an offshore platform, comprising a first bracket (1) and a second bracket (2), characterized in that: Also includes: A pressing plate (3), wherein an air groove (31) is provided inside the pressing plate (3), and a pressing strip (32) is provided at the lower end of the pressing plate (3), wherein the pressing strip (32) can squeeze the air inside the air groove (31) by sliding; A first wedge block (33) and a second wedge block (34) are arranged inside the pressure strip (32), the first wedge block (33) and the second wedge block (34) are meshed with each other, and the second wedge block (34) can keep the pressure of the pressure strip (32) stable by moving; A buffer cavity (35) is provided in the pressure plate (3), and a partition (351) is provided in the buffer cavity (35), wherein the partition (351) can change the volume of the buffer cavity (35) by sliding.

2. The offshore platform pipe clamp according to claim 1, characterized in that: An elastic connector (36) is provided at one end of the pressure plate (3), and a positioning block (37) is slidably connected to the side wall of the elastic connector (36). When the workpiece is installed, the positioning block (37) can contact the surface of the workpiece before the pressure strip (32).

3. The offshore platform pipe clamp according to claim 2, characterized in that: A plurality of air cylinders (311) are provided inside the air groove (31), each of the air cylinders (311) is slidably connected to a piston plate (312), one end of each of the piston plates (312) is fixedly connected to a piston rod (313), and one end of each of the piston rods (313) extending out of the air cylinder (311) is fixedly connected to the first wedge block (33).

4. The offshore platform pipe clamp according to claim 3, characterized in that: The pressure strip (32) is provided with an adjustment groove (321) inside, the second wedge block (34) is slidably connected to the inner wall of the adjustment groove (321), a first elastic member (322) is provided inside the adjustment groove (321), one end of the first elastic member (322) is fixedly connected to the second wedge block (34), the other end of the first elastic member (322) is fixedly connected to the inner wall of the adjustment groove (321), one end of the second wedge block (34) away from the first elastic member (322) is fixedly connected to a guide rod (323), one end of the guide rod (323) away from the second wedge block (34) extends out of the adjustment groove (321) and contacts with a surface of the pressure plate (3) close to one end of the pressure strip (32), the contact surface of the pressure plate (3) with the guide rod (323) is a wedge-shaped surface, the wedge-shaped surface is composed of a straight surface and an inclined surface, and the straight surface is parallel to the end surface of the pressure strip (32) close to the guide rod (323).

5. The offshore platform pipe clamp according to claim 4, characterized in that: A sliding groove (361) is provided on the side wall of the elastic connecting head (36) close to the pressure plate (3), one end of the positioning block (37) is slidably connected to the side wall of the sliding groove (361), a second elastic member (371) is arranged in the sliding groove (361), one end of the second elastic member (371) is fixedly connected to the inner top wall of the sliding groove (361), the other end of the second elastic member (371) is fixedly connected to one end of the positioning block (37), one end of the positioning block (37) away from the sliding groove (361) is fixedly connected to a heat conducting block (372), a first heat conducting pipe (373) is provided in the positioning block (37), and one end of the first heat conducting pipe (373) is in contact with the surface of the heat conducting block (372).

6. The offshore platform pipe clamp according to claim 5, characterized in that: The air groove (31) is connected to the buffer chamber (35) through a pipeline. A rotating shaft (352) is rotatably connected in the buffer chamber (35). The rotating shaft (352) passes through the partition plate (351). The partition plate (351) is threadedly connected to the rotating shaft (352). A spiral groove (353) is provided inside the rotating shaft (352). A transmission column (316) is slidably connected in the spiral groove (353).

7. The offshore platform pipe clamp according to claim 6, characterized in that: A second heat conducting pipe (314) is provided in the pressing plate (3), a guide column (315) is slidably connected inside the second heat conducting pipe (314), one end of the guide column (315) is fixedly connected to a transmission column (316), and the first heat conducting pipe (373) is connected to the second heat conducting pipe (314) via a ventilation pipe.

8. The offshore platform pipe clamp according to claim 7, characterized in that: One end of the pressure plate (3) is rotatably connected to the first bracket (1) via a rotating pin, a limiting member (21) is provided on the second bracket (2), the first bracket (1) is provided with a limiting groove (11) matching with the limiting member (21), and one end of the second bracket (2) close to the limiting member (21) is rotatably connected to the first bracket (1) via a rotating pin.

9. The offshore platform pipe clamp according to claim 8, characterized in that: One end of the elastic connector (36) is provided with a first limiting step (362), and one end of the second bracket (2) away from the first bracket (1) is provided with a plurality of second limiting steps (22) matching the first limiting step (362).

10. The offshore platform pipe clamp according to claim 9, characterized in that: There are at least two pressure strips (32) symmetrically distributed at the bottom end of the pressure plate (3), and there are at least two first limiting steps (362) symmetrically distributed at both sides of the elastic connector (36).

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