A pipeline positioning device for gas engineering

Abstract

This utility model relates to the field of gas engineering technology, specifically a pipeline positioning device for gas engineering, including an L-shaped fixing component and a U-shaped clamp. The L-shaped fixing component has a fixing structure inside for fixing the U-shaped clamp. The fixing structure includes a mounting box, and the mounting box has internally threaded sleeves rotatably provided on the two straight rods corresponding to the U-shaped clamp. The internally threaded sleeves are threadedly engaged with the straight rods of the U-shaped clamp. By setting up the mounting box, internally threaded sleeves, linkage components, adjustment components, and positioning components, the two internally threaded sleeves can rotate synchronously, ensuring that the U-shaped clamp always moves up and down in the vertical direction, avoiding structural failure due to installation deviation, ensuring the long-term reliability of the positioning frame, and also achieving the locking effect of the internally threaded sleeves. This solves the problem of nut loosening caused by vibration in conventional positioning frames, ensuring that the clamping force of the U-shaped clamp on the pipeline is stable in the long term, and avoiding the risk of pipeline displacement or interface leakage.

Description

Technical Field

[0001] This utility model relates to the field of gas engineering technology, and in particular to a pipeline positioning device for gas engineering. Background Technology

[0002] In the construction and operation of gas engineering projects, pipeline positioning devices are core components that ensure the installation accuracy, fixation stability, and long-term safe operation of gas pipelines. Their main function is to achieve accurate positioning and reliable fixation of gas pipelines in scenarios such as direct burial, overhead, and wall attachment, avoiding safety hazards such as interface leakage and pipeline corrosion caused by installation deviations, vibration displacement, or external disturbances. Among them, positioning devices composed of angle steel and U-shaped clamps are widely used in the installation and positioning of small and medium diameter gas pipelines and are currently the most widely used traditional positioning solutions in the industry.

[0003] A positioning clamp for gas pipelines is disclosed in Chinese patent CN217736492U. This positioning clamp uses bolts to fix a fixing frame (L-shaped angle steel) to a wall. The clamp is fitted onto the gas pipeline, with the straight part passing through the first corner hole of the pipeline connection. Then, a sealing sleeve with a rubber sleeve and a sealing ring are installed sequentially. Finally, the nut is tightened to secure the clamp, completing the pipeline fixation. However, in comparison with related equipment and similar equipment, it was found that existing positioning frames use two independent bolts or nuts to connect the U-shaped clamp to the angle steel fixing component. These two bolts or nuts require individual adjustment, making the installation process cumbersome and posing a risk of one-sided tightening or loosening. Furthermore, vibrations from gas pipeline flow, construction disturbances, or environmental vibrations during operation can cause the bolts or nuts to rotate and loosen, weakening the clamping force of the U-shaped clamp and ultimately leading to pipeline positioning failure and the risk of pipeline displacement. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a pipeline positioning device for gas engineering.

[0005] The objective of this utility model is achieved through the following technical solution: a pipeline positioning device for gas engineering, comprising an L-shaped fixing component and a U-shaped clamp. The L-shaped fixing component has a fixing structure inside for fixing the U-shaped clamp. The fixing structure includes a mounting box. The mounting box has internally threaded sleeves rotatably provided on both straight rods corresponding to the U-shaped clamp. The internally threaded sleeves are threadedly engaged with the straight rods of the U-shaped clamp. The two internally threaded sleeves rotate synchronously through a linkage component. The bottom of the mounting box is open. A box cover is fixedly provided on the opening of the mounting box. The box cover has an adjusting component that slides axially or rotates circumferentially corresponding to the position of one of the internally threaded sleeves. The adjusting component is spline-connected to its corresponding internally threaded sleeve. The box cover has a positioning component inside for stepless limiting of the adjusting component.

[0006] Preferably, the linkage component includes a pulley that is splinedly connected to the internal threaded sleeve, and the two pulleys are connected by a timing belt.

[0007] Preferably, the adjustment assembly includes a rotating shaft that is axially or circumferentially connected to the lid. An adjustment rod is fixedly provided at one end of the rotating shaft located outside the lid. The cross-sectional shape of the adjustment rod is hexagonal. The lid has a movable hole corresponding to the position of the rotating shaft.

[0008] Preferably, the positioning component includes a first magnetic ring fitted on the outer surface of the rotating shaft, and a second magnetic ring is embedded in the cover at the position corresponding to the first magnetic ring. The first magnetic ring and the second magnetic ring are attracted to each other, and the diameter of the second magnetic ring is larger than the diameter of the rotating shaft.

[0009] Preferably, the mounting box is provided with a fixing ring at each end of the two internal threaded sleeves, and the internal threaded sleeves are connected to the fixing rings through bearings.

[0010] Preferably, the outer surface of the internal threaded sleeve away from the fixed ring has multiple spline grooves, the center of the pulley has a spline through hole, and the end of the rotating shaft away from the adjusting rod has a spline blind hole. The spline through hole and the spline blind hole are splined to the multiple spline grooves of the internal threaded sleeve.

[0011] Preferably, the mounting box has insertion holes on both straight rods corresponding to the U-shaped clamp, and a sealing ring that matches the straight rod of the U-shaped clamp is fixed in the insertion hole.

[0012] The beneficial effects of this pipeline positioning device for gas engineering are as follows: By setting up an installation box, internal threaded sleeve, linkage component, adjustment component, and positioning component, the two internal threaded sleeves can rotate synchronously, ensuring that the U-shaped clamp always rises and falls in the vertical direction, avoiding structural failure due to installation deviation, ensuring the long-term reliability of the positioning frame, and also achieving the locking effect of the internal threaded sleeve, solving the problem of nut loosening caused by vibration in conventional positioning frames, ensuring that the clamping force of the U-shaped clamp on the pipeline is stable for a long time, and avoiding the risk of pipeline displacement or interface leakage. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a first-view structural schematic diagram of the L-shaped fastener after pipe installation according to this utility model. Figure 3 This is a structural schematic diagram of the L-shaped fastener after pipe installation, from a second perspective. Figure 4 This is a schematic diagram of the adsorption state of the first magnetic ring and the second magnetic ring of this utility model; Figure 5 This is a schematic diagram showing the separation state of the first magnetic ring and the second magnetic ring of this utility model; Figure 6 This is a schematic diagram of the linkage component, adjustment component, and internal threaded sleeve of this utility model; Figure 7 This is a schematic diagram showing the disassembled structure of the linkage component, adjustment component, and internal threaded sleeve of this utility model.

[0015] In the diagram: 1. L-shaped fastener; 2. U-shaped clamp; 3. Mounting box; 301. Fixing ring; 302. Insertion hole; 303. Sealing ring; 4. Internal threaded sleeve; 401. Spline groove; 5. Linkage assembly; 501. Pulley; 5011. Spline through hole; 502. Synchronous belt; 6. Box cover; 7. Adjustment assembly; 701. Rotating shaft; 7011. Spline blind hole; 702. Adjusting rod; 8. Positioning assembly; 801. First magnetic ring; 802. Second magnetic ring. Detailed Implementation

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0018] like Figures 1 to 7As shown, a pipeline positioning device for gas engineering includes an L-shaped fixing member 1 and a U-shaped clamp 2. The L-shaped fixing member 1 has a fixing structure inside for fixing the U-shaped clamp 2. The fixing structure includes a mounting box 3. The mounting box 3 has internally threaded sleeves 4 rotatably mounted on the two straight rods corresponding to the U-shaped clamp 2. The mounting box 3 has fixing rings 301 fixed at the ends of the two internally threaded sleeves 4. The internally threaded sleeves 4 are connected to the fixing rings 301 through bearings (not labeled in the figure). By using the bearings, the internally threaded sleeves 4 can be reduced in size. The friction during rotation improves the stability of the internal threaded sleeve 4 during rotation. The internal threaded sleeve 4 is threadedly engaged with the straight rod of the U-shaped clamp 2. The two internal threaded sleeves 4 rotate synchronously through the linkage component 5. The bottom of the mounting box 3 is open. The opening of the mounting box 3 is fixedly provided with a box cover 6. The box cover 6 is provided with an adjusting component 7 that slides axially or rotates circumferentially corresponding to the position of one of the internal threaded sleeves 4. The adjusting component 7 is splinedly connected to its corresponding internal threaded sleeve 4. The inside of the box cover 6 is provided with a positioning component 8 for stepless limiting of the adjusting component 7.

[0019] like Figures 3 to 7 As shown, the linkage assembly 5 includes a pulley 501 splinedly connected to the internal threaded sleeve 4. The two pulleys 501 are connected by a synchronous belt 502 (the inner wall of the synchronous belt 502 is provided with teeth, and the outer surface of the pulley 501 is provided with a meshing groove that mates with the teeth; the teeth and meshing groove are not shown in the figure). During operation, an external force drives one of the internal threaded sleeves 4 and the coaxial pulley 501 to rotate. Through the toothed meshing transmission of the synchronous belt 502, the other pulley 501 and the corresponding internal threaded sleeve 4 can be driven to rotate synchronously. The synchronous belt 502 transmission has the characteristics of constant transmission ratio and no relative slippage, which can ensure the rotation of the two internal threads. The rotational angular velocity of sleeve 4 is completely consistent. Even if there are minor machining or installation errors, they can be eliminated by the elastic compensation effect of synchronous belt 502. There will be no situation of unilateral rotational lag or speed deviation. This allows the straight rods on both sides of U-shaped clamp 2 to rise and fall smoothly and synchronously along the internal thread sleeve 4, always maintaining a perpendicular state to the pipeline axis. This completely avoids the problem of U-shaped clamp 2 tilting due to asynchronous rotation of internal thread sleeve 4, ensuring that the threaded mating surface of the straight rod of U-shaped clamp 2 and internal thread sleeve 4 is subjected to uniform force, effectively preventing wear and stripping caused by local force concentration on the thread, and ensuring the stability and reliability of the threaded mating.

[0020] like Figure 4 , Figure 5 and Figure 7As shown, the adjustment assembly 7 includes a rotating shaft 701 that is axially slidable or circumferentially rotatable to the cover 6. An adjustment rod 702 is fixedly provided at one end of the rotating shaft 701 located outside the cover 6. The cross-sectional shape of the adjustment rod 702 is hexagonal. The cover 6 has a movable hole at the position corresponding to the rotating shaft 701. The end of the adjustment rod 702 away from the rotating shaft 701 is formed with a chamfered surface, so as to guide the inner hexagonal sleeve to quickly connect with the adjustment rod 702.

[0021] like Figures 3 to 7 As shown, the positioning component 8 includes a first magnetic ring 801 fitted on the outer surface of the rotating shaft 701, and a second magnetic ring 802 embedded in the cover 6 at the position corresponding to the first magnetic ring 801. The first magnetic ring 801 and the second magnetic ring 802 are attracted to each other. The diameter of the second magnetic ring 802 is larger than the diameter of the rotating shaft 701. The positioning component 8 realizes stepless limiting of the adjustment component 7, which can adapt to the locking requirements of the U-shaped clamp 2 at any lifting height. It does not need to rely on traditional cotter pins or locking nuts and other additional limiting components, reducing the risk of loosening of parts.

[0022] like Figure 7 As shown, the outer surface of the internally threaded sleeve 4, away from the fixed ring 301, has multiple spline grooves 401. The pulley 501 has a spline through hole 5011 at its center. The shaft 701, away from the adjusting rod 702, has a spline blind hole 7011. Both the spline through hole 5011 and the spline blind hole 7011 are splinedly connected to the multiple spline grooves 401 of the internally threaded sleeve 4. Figures 3 to 7 As shown, during adjustment, by connecting the hexagon socket of the electric drill to the adjusting rod 702, and then pressing the electric drill towards the cover 6, the shaft 701 can be retracted into the mounting box 3, thereby causing the first magnetic ring 801 to separate from the second magnetic ring 802. Afterwards, the electric drill can be used to drive the hexagon socket and the adjusting rod 702 to rotate, so that the shaft 701 drives the internal threaded sleeve 4 connected to it by spline to rotate.

[0023] like Figure 5 As shown, the mounting box 3 has insertion holes 302 on both straight rods of the U-shaped clamp 2. A sealing ring 303 that fits into the straight rod of the U-shaped clamp 2 is fixed in the insertion hole 302. The sealing ring 303 on the inner wall of the insertion hole 302 completely isolates the threaded section of the straight rod of the U-shaped clamp 2 from the outside air, water vapor and oxygen, so as to prevent the threaded section from oxidizing and rusting or being corroded by damp soil and rainwater, thus solving the corrosion and jamming problem caused by the exposed threads of conventional positioning brackets.

[0024] The side of the mounting box 3 away from the cover 6 has a rubber layer (not shown in the figure), which can increase the fit between the mounting box 3 and the L-shaped fastener 1, ensure the stability of the U-shaped clamp 2 after installation, and provide a certain vibration reduction effect.

[0025] The work process is as follows: S1: During installation, first fix the L-shaped fastener 1 in the designated position with bolts, then place the pipe on the L-shaped fastener 1, and then fasten the U-shaped clamp 2 on the pipe. The straight part of the U-shaped clamp 2 passes through the horizontal mounting hole of the L-shaped fastener 1. S2: After the U-shaped clamp 2 is placed, the mounting box 3 is connected to the U-shaped clamp 2 by controlling the connection, so that the sealing ring 303 inside the insertion hole 302 wraps around the straight rod part of the U-shaped clamp 2. S3: During adjustment, by connecting the internal hexagon socket of the electric drill to the adjusting rod 702, and then pressing the electric drill towards the cover 6, the rotating shaft 701 can be retracted into the interior of the mounting box 3, thereby causing the first magnetic ring 801 to separate from the second magnetic ring 802. Afterwards, the internal hexagon socket and the adjusting rod 702 can be rotated by the electric drill, so that the rotating shaft 701 drives the internal threaded sleeve 4 connected to it by the spline to rotate. S4: When one of the internal threaded sleeves 4 and the coaxial pulley 501 rotates, the toothed meshing transmission of the synchronous belt 502 can drive the other pulley 501 and the corresponding internal threaded sleeve 4 to rotate synchronously, so that the straight rods on both sides of the U-shaped clamp 2 can smoothly and synchronously rise and fall along the internal threaded sleeve 4, always maintaining a state perpendicular to the pipeline axis. S5: After installation, release the electric drill. The attraction of the second magnetic ring 802 causes the first magnetic ring 801 and the rotating shaft 701 to slide outwards towards the mounting box 3, so that the first magnetic ring 801 and the second magnetic ring 802 are attracted to each other, realizing stepless limiting of the adjustment component 7. It can adapt to the locking requirements of the U-shaped clamp 2 at any lifting height, without relying on traditional cotter pins or locking nuts and other additional limiting components, reducing the risk of loose parts. At the same time, it promotes the integrated design of unlocking, adjustment and automatic locking, avoiding fixation failure caused by human forgetting the locking step, improving construction safety. It also solves the problem of nut loosening caused by vibration (construction disturbance, pipeline operation vibration) of conventional positioning frames, ensuring that the clamping force of the U-shaped clamp on the pipeline is stable for a long time, avoiding the risk of pipeline displacement or interface leakage.

[0026] The electric drill and hex socket described in this application are conventional installation tools in this technical field, therefore their specific structure and working principle are not described in detail.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pipeline positioning device for gas engineering, characterized in that: The device includes an L-shaped fastener (1) and a U-shaped clamp (2). The L-shaped fastener (1) has a fixing structure inside for fixing the U-shaped clamp (2). The fixing structure includes a mounting box (3). The mounting box (3) is provided with an internal threaded sleeve (4) for each of the two straight rods of the U-shaped clamp (2). The internal threaded sleeve (4) is threadedly engaged with the straight rod of the U-shaped clamp (2). The two internal threaded sleeves (4) rotate synchronously through the linkage assembly (5). The bottom of the mounting box (3) is open. The opening of the mounting box (3) is fixedly provided with a box cover (6). The box cover (6) is provided with an adjustment assembly (7) that slides axially or rotates circumferentially corresponding to the position of one of the internal threaded sleeves (4). The adjustment assembly (7) is splinedly connected to the corresponding internal threaded sleeve (4). The inside of the box cover (6) is provided with a positioning assembly (8) for stepless limiting of the adjustment assembly (7).

2. The pipeline positioning device for gas engineering according to claim 1, characterized in that: The linkage component (5) includes a pulley (501) splinedly connected to the internal threaded sleeve (4), and the two pulleys (501) are connected by a timing belt (502).

3. A pipeline positioning device for gas engineering according to claim 2, characterized in that: The adjustment component (7) includes a rotating shaft (701) that is axially slidable or circumferentially rotatable to the cover (6). An adjustment rod (702) is fixedly provided at one end of the rotating shaft (701) located outside the cover (6). The cross-sectional shape of the adjustment rod (702) is hexagonal. The cover (6) has a movable hole corresponding to the position of the rotating shaft (701).

4. A pipeline positioning device for gas engineering according to claim 3, characterized in that: The positioning component (8) includes a first magnetic ring (801) fitted on the outer surface of the rotating shaft (701), and a second magnetic ring (802) is inlaid on the cover (6) corresponding to the position of the first magnetic ring (801). The first magnetic ring (801) and the second magnetic ring (802) are attracted to each other, and the diameter of the second magnetic ring (802) is larger than the diameter of the rotating shaft (701).

5. A pipeline positioning device for gas engineering according to claim 4, characterized in that: The mounting box (3) is fixedly provided with a fixing ring (301) at the ends of the two internal threaded sleeves (4), and the internal threaded sleeves (4) are connected to the fixing rings (301) through bearings.

6. A pipeline positioning device for gas engineering according to claim 5, characterized in that: The outer surface of the internal threaded sleeve (4) away from the fixed ring (301) is provided with multiple spline grooves (401), the center of the pulley (501) is provided with a spline through hole (5011), and the end of the rotating shaft (701) away from the adjusting rod (702) is provided with a spline blind hole (7011). The spline through hole (5011) and the spline blind hole (7011) are both splinedly connected to the multiple spline grooves (401) of the internal threaded sleeve (4).

7. A pipeline positioning device for gas engineering according to claim 1, characterized in that: The mounting box (3) has insertion holes (302) on both straight rods of the U-shaped clamp (2), and a sealing ring (303) that fits into the straight rod of the U-shaped clamp (2) is fixed in the insertion hole (302).

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