Nuclear grade pipe support hanger pipe part self-locking anti-loose clamp

Abstract

The utility model relates to the technical field of the clamp and discloses a self-locking type anti-loosening clamp set for the pipe part of nuclear-grade pipe support hanger, solves the problem that the clamp for the pipe part of the existing nuclear-grade pipe support hanger is usually fixed by multiple bolts, the bolts need to be tightened or loosened one by one during operation, time and effort are consumed, especially when working in a narrow space or at a high altitude, the tool operation is limited, and the installation and maintenance difficulty is increased, the utility model comprises a support hanger body, support seats are fixedly installed at both ends of the top of the support hanger body, connecting plates are fixedly installed at the top of the two support seats, a clamp body is arranged on the upper part of the support hanger body, and the lower part of the clamp body is inserted into the inside of the support hanger body; the clamp for the pipe part of the nuclear-grade pipe support hanger is very convenient to fix, has the self-locking anti-loosening capacity, is favorable for the operation personnel to work in a narrow space and at a high altitude, reduces the installation and maintenance difficulty, improves the maintenance efficiency and the flexibility of nuclear power station operation.

Description

Technical Field

[0001] This utility model belongs to the field of clamp technology, specifically a self-locking anti-loosening clamp assembly for nuclear-grade pipeline support pipe section. Background Technology

[0002] Nuclear-grade piping support clamp assemblies are connection and fixing devices specifically designed for nuclear power plant piping systems. They possess high strength, corrosion resistance, and anti-loosening properties. Through reliable clamping and sealing mechanisms, they ensure stable connections of pipelines in high-temperature, high-pressure, and high-radiation environments, avoiding the risk of leakage and loosening. Their applications cover critical process piping, safety-grade piping, and nuclear-grade systems with high seismic requirements in nuclear power plants, undertaking load transfer, displacement limitation, and vibration control functions to ensure the safe and efficient operation of nuclear facilities.

[0003] Existing nuclear-grade pipeline supports and hangers typically use multiple bolts for fixing, requiring each bolt to be tightened or loosened individually during operation. This is time-consuming and labor-intensive, especially in confined spaces or at heights, where tool operation is restricted, increasing the difficulty of installation and maintenance, and affecting maintenance efficiency and the operational flexibility of nuclear power plants. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a self-locking anti-loosening clamp assembly for the pipe section of nuclear-grade pipeline supports and hangers. It effectively solves the problem that the existing pipe section clamps of nuclear-grade pipeline supports and hangers are usually fixed with multiple bolts. During operation, each bolt needs to be tightened or loosened one by one, which is time-consuming and laborious. Especially in narrow spaces or high-altitude operations, tool operation is restricted, which increases the difficulty of installation and maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-locking anti-loosening clamp assembly for a nuclear-grade pipeline support, comprising a support body, with support seats fixedly installed at both ends of the top of the support body, and connecting plates fixedly installed on the top of each support seat. A clamp body is provided on the upper part of the support body, with the lower part of the clamp body inserted inside the support body. Support pads are fixedly installed on both sides of the clamp body, and soft pads are fixedly installed on both sides of the upper surface of the support body. The bottoms of the two support pads are pressed against the soft pads. Openings are provided at both ends of the lower part of the clamp body, and rollers are rotatably installed inside each opening. A handwheel is provided in the middle of one side of the support body. Push heads are provided on both sides of the upper part of the support body. A transmission assembly is provided on one side of the handwheel, and the transmission assembly is connected to the two push heads. When the handwheel rotates, power is output to the two push heads through the transmission assembly, causing the two push heads to squeeze the two rollers, thereby pulling downwards and clamping the clamp body.

[0006] Preferably, the transmission assembly includes a rotating shaft, which is fixedly installed on one side of the handwheel. One end of the rotating shaft extends into the interior of the support body and is fixedly installed with a worm gear. The surface of the rotating shaft is rotatably connected to the support body via a bearing. The end of the worm gear away from the rotating shaft is rotatably installed with a positioning seat via a first bearing seat. The bottom of the positioning seat is fixedly connected to the inner bottom of the support body.

[0007] Preferably, the lower part of the worm gear is meshed with a worm wheel, the middle part of the worm wheel is fixedly installed with a shaft, both ends of the shaft are fixedly installed with threaded rods, the surfaces of the two threaded rods are threaded with threaded sleeves, the tops of the two threaded sleeves are fixedly installed with support rods, the tops of the two support rods are respectively fixedly connected to two push heads, and the ends of the two threaded rods that are far apart from each other are rotatably installed with rotating seats through a second bearing, and the bottom of the rotating seats is rotatably connected to the inner bottom of the support and hanger body.

[0008] Preferably, each threaded sleeve has a slider fixedly installed at its bottom, and the bottom of the support body has grooves on both sides, with the two sliders slidably installed inside the two grooves.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator inserts the bottom of the clamp body into the interior of the support frame body, and places the two support pads on top of the two soft pads. Then, the operator rotates the handwheel to drive the rotating shaft to rotate inside the bearing. When the rotating shaft rotates, it drives the worm to rotate along the first shaft seat. When the worm rotates, it drives the shaft to rotate through the worm wheel. When the shaft rotates, it drives the two threaded rods to rotate along the two rotating seats. When the two threaded rods rotate, they drive the two threaded sleeves to move in opposite directions.

[0010] When the two threaded sleeves move, they both drive the slider to slide inside the groove, increasing the stability of the two threaded sleeves during movement. When the threaded sleeves move, they both drive the two pushing heads to move towards each other through the support rod. When the two pushing heads move towards each other, the clamp body is smoothly pushed down by the two rollers and locked into the two openings. When the clamp body moves down, it drives the two support pads to move down and squeeze the soft pads, thereby tightening and locking the clamp body. The self-locking ability of the threaded rod, threaded sleeve, worm and worm wheel prevents the clamp body from loosening, thereby improving the stability of the fixation. This makes the clamp fixation of the pipe section of the nuclear-grade pipeline support very convenient and has a self-locking anti-loosening capability, which is beneficial for operators to work in narrow spaces and at heights, reduces the difficulty of installation and maintenance, and improves maintenance efficiency and the flexibility of nuclear power plant operation. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the self-locking anti-loosening clamp assembly for the pipe section of the nuclear-grade pipeline support and hanger of this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the self-locking anti-loosening clamp assembly for the pipe section of the nuclear-grade pipeline support and hanger of this utility model. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the internal structure of the support and hanger body of this utility model. Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the internal structure of the support and hanger body of this utility model. Figure 2 ;

[0017] In the diagram: 1. Main body of the support frame; 2. Support seat; 3. Clamp body; 4. Support pad; 5. Soft pad; 6. Opening; 7. Roller; 8. Handwheel; 9. Rotating shaft; 10. Bearing; 11. Worm gear; 12. Positioning seat; 13. Worm wheel; 14. Shaft; 15. Threaded rod; 16. Threaded sleeve; 17. Slider; 18. Slide groove; 19. Second shaft seat; 20. Rotating seat; 21. Support rod; 22. Push head; 23. Connecting plate; 24. First shaft seat. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Depend on Figures 1 to 4The present invention includes a support body 1, with support seats 2 fixedly installed at both ends of the top of the support body 1, and connecting plates 23 fixedly installed on the top of the two support seats 2. A clamp body 3 is provided on the upper part of the support body 1, and the lower part of the clamp body 3 is inserted into the interior of the support body 1. Support pads 4 are fixedly installed on both sides of the clamp body 3. Soft pads 5 are fixedly installed on both sides of the upper surface of the support body 1. The bottom of the two support pads 4 is pressed against the soft pads 5. Openings 6 are provided at both ends of the lower part of the clamp body 3. Rollers 7 are rotatably installed inside the two openings 6. A handwheel 8 is provided in the middle of one side of the support body 1. Push heads 22 are provided on both sides of the upper part of the interior of the support body 1. A transmission component is provided on one side of the handwheel 8. The transmission component is connected to the two push heads 22. When the handwheel 8 rotates, the power is output to the two push heads 22 through the transmission component, so that the two push heads 22 squeeze the two rollers 7, thereby pulling them downward and clamping the clamp body 3.

[0020] In use, the operator inserts the bottom of the clamp body 3 into the interior of the support body 1, and places the two support pads 4 on top of the two soft pads 5. Then, the operator rotates the handwheel 8 to drive the transmission component. When the transmission component is running, it drives the two pushing heads 22 to move towards each other. When the two pushing heads 22 move towards each other, they smoothly push the clamp body 3 downward through the two rollers 7 and lock it into the two openings 6. When the clamp body 3 moves downward, it drives the two support pads 4 to move downward and squeeze the soft pads 5, thereby tightening and locking the clamp body 3. This makes it very convenient to fix the clamps of the nuclear-grade pipeline support and hanger, and has a self-locking and anti-loosening capability. It is beneficial for operators to work in narrow spaces and at heights, reduces the difficulty of installation and maintenance, and improves maintenance efficiency and the flexibility of nuclear power plant operation.

[0021] The transmission assembly includes a rotating shaft 9, which is fixedly installed on one side of the handwheel 8. One end of the rotating shaft 9 extends into the interior of the support body 1 and is fixedly installed with a worm gear 11. The surface of the rotating shaft 9 is rotatably connected to the support body 1 through a bearing 10. The end of the worm gear 11 away from the rotating shaft 9 is rotatably installed with a positioning seat 12 through a first bearing seat 24. The bottom of the positioning seat 12 is fixedly connected to the inner bottom of the support body 1.

[0022] The lower part of the worm gear 11 is meshed with a worm wheel 13. A shaft 14 is fixedly installed in the middle of the worm wheel 13. Threaded rods 15 are fixedly installed at both ends of the shaft 14. Threaded sleeves 16 are threadedly connected to the surfaces of the two threaded rods 15. Support rods 21 are fixedly installed on the tops of the two threaded sleeves 16. The tops of the two support rods 21 are fixedly connected to two push heads 22 respectively. Rotary seats 20 are rotatably installed at the ends of the two threaded rods 15 that are far apart from each other through a second bearing 19. The bottom of the rotating seats 20 is rotatably connected to the inner bottom of the support body 1.

[0023] The rotating handwheel 8 drives the rotating shaft 9 to rotate inside the bearing 10. When the rotating shaft 9 rotates, it drives the worm gear 11 to rotate along the first shaft seat 24. When the worm gear 11 rotates, it drives the shaft 14 to rotate through the worm wheel 13. When the shaft 14 rotates, it drives the two threaded rods 15 to rotate along the two rotating seats 20. When the two threaded rods 15 rotate, they drive the two threaded sleeves 16 to move in opposite directions. When the threaded sleeves 16 move, they drive the two pushing heads 22 to move towards each other through the support rod 21. When the two pushing heads 22 move towards each other, they smoothly push the clamp body 3 down through the two rollers 7 and lock it into the two openings 6. When the clamp body 3 moves down, it drives the two support pads 4 to move down and squeeze the soft pads 5, thereby tightening and locking the clamp body 3. The self-locking ability of the threaded rods 15 and threaded sleeves 16, as well as the worm gear 11 and worm wheel 13, prevents the clamp body 3 from loosening, thereby improving the stability of the fixation.

[0024] The bottom of each threaded sleeve 16 is fixedly installed with a slider 17. The bottom of the support body 1 is provided with two sliding grooves 18 on both sides. The two sliders 17 are slidably installed inside the two sliding grooves 18. When the two threaded sleeves 16 move, they drive the sliders 17 to slide inside the sliding grooves 18, which increases the stability of the two threaded sleeves 16 when they move.

Claims

1. A self-locking anti-loosening clamp assembly for a nuclear-grade pipeline support, comprising a support body (1), characterized in that: Both ends of the top of the support frame body (1) are fixedly installed with support seats (2), and the top of the two support seats (2) is fixedly installed with connecting plates (23). The upper part of the support frame body (1) is provided with a clamp body (3), and the lower part of the clamp body (3) is inserted into the interior of the support frame body (1). Support pads (4) are fixedly installed on both sides of the clamp body (3), and soft pads (5) are fixedly installed on both sides of the upper surface of the support frame body (1). The bottom of the two support pads (4) is pressed against the soft pads (5). The lower part of the clamp body (3) is fixedly installed with a connecting plate (23). Both ends are provided with openings (6), and rollers (7) are rotatably installed inside the two openings (6). A handwheel (8) is provided in the middle of one side of the support body (1). Push heads (22) are provided on both sides of the upper part of the support body (1). A transmission component is provided on one side of the handwheel (8). The transmission component is connected to the two push heads (22). When the handwheel (8) rotates, the power is output to the two push heads (22) through the transmission component, so that the two push heads (22) squeeze the two rollers (7) and pull them down and clamp the clamp body (3).

2. The self-locking anti-loosening clamp assembly for nuclear-grade pipeline supports and hangers according to claim 1, characterized in that: The transmission assembly includes a rotating shaft (9), which is fixedly installed on one side of the handwheel (8). One end of the rotating shaft (9) extends into the interior of the support body (1) and is fixedly installed with a worm gear (11). The surface of the rotating shaft (9) is rotatably connected to the support body (1) through a bearing (10). The end of the worm gear (11) away from the rotating shaft (9) is rotatably installed with a positioning seat (12) through a first bearing seat (24). The bottom of the positioning seat (12) is fixedly connected to the inner bottom of the support body (1).

3. The self-locking anti-loosening clamp assembly for a nuclear-grade pipeline support according to claim 2, characterized in that: The lower part of the worm (11) is meshed with a worm wheel (13), and a shaft (14) is fixedly installed in the middle of the worm wheel (13). Both ends of the shaft (14) are fixedly installed with threaded rods (15). The surfaces of the two threaded rods (15) are threadedly connected with threaded sleeves (16). The tops of the two threaded sleeves (16) are fixedly installed with support rods (21). The tops of the two support rods (21) are fixedly connected to the two push heads (22) respectively. The ends of the two threaded rods (15) that are far apart from each other are rotatably installed with rotating seats (20) through the second shaft seat (19), and the bottom of the rotating seats (20) is rotatably connected to the inner bottom of the support and hanger body (1).

4. The self-locking anti-loosening clamp assembly for a nuclear-grade pipeline support according to claim 3, characterized in that: The bottom of each threaded sleeve (16) is fixedly installed with a slider (17), and the bottom of the support body (1) is provided with two grooves (18) on both sides. The two sliders (17) are slidably installed inside the two grooves (18).

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