Compensation adjustment limiting structure

Abstract

The utility model discloses a compensation adjustment limiting structure which comprises a corrugated telescopic pipe and a fixing flange plate, the upper surface of the corrugated telescopic pipe is fixedly connected with a first compensation flange plate, the two sides of the first compensation flange plate are both fixedly connected with fixing seats, the lower surface of the corrugated telescopic pipe is fixedly connected with a second compensation flange plate, and the second compensation flange plate is fixedly connected with the fixing seats. Adjusting bases are fixedly connected to the two sides of the second compensation flange plate correspondingly, bearings are fixedly connected to the upper surface of the fixing base, threaded lead screws are rotationally connected into the bearings, the other ends of the threaded lead screws are in threaded connection to the adjusting bases, and a protection structure is arranged on the surface of the corrugated telescopic pipe. The threaded lead screw is arranged, so that pipelines with different distances can be connected together, the influence caused by pipeline distance errors during construction is avoided, the corrugated telescopic pipe can be protected by the device through the protection structure, and the corrugated telescopic pipe is prevented from being damaged due to external force impact.

Description

Technical Field

[0001] This utility model relates to the field of pipeline compensation equipment technology, and in particular to a compensation adjustment limiting structure. Background Technology

[0002] Pipe compensators are used to connect pipes when the space reserved during pipe installation is too large or too small. They can also compensate for changes in pipe length caused by thermal expansion and contraction. Existing pipe compensators adjust the length of the corrugated connecting pipe using screws and nuts.

[0003] Patent CN206055048U, entitled "Self-Adjustable Limiting Structure of Pipe Compensator Flange," discloses a self-adjustable limiting structure for a pipe compensator flange, including a compensator and a lead screw. The compensator comprises a bellows and two flanges connected to both ends of the bellows. The lead screw has threads at both ends. Several evenly arranged perforated lugs extend outward from the sides of the flanges. The lead screw passes through holes in the lugs between corresponding lugs of the two flanges. Elastic pads located on both sides of the lugs and a nut with threaded engagement with the lead screw are threaded onto the lead screw. The elastic pads between the nut and the lugs prevent the compensator's limiting structure from locking up and causing compensator failure. A spring is installed inside the elastic pad to increase its elasticity. However, this patented technology has shortcomings in practical applications. The device does not protect the bellows, and the bellows' extensibility results in lower strength than conventionally connected pipes. External impacts may damage the bellows, leading to pipe leaks. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a compensation adjustment limiting structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A compensation adjustment and limiting structure includes a corrugated expansion tube and a fixed flange. A first compensation flange is fixedly connected to the upper surface of the corrugated expansion tube, and fixed seats are fixedly connected to both sides of the first compensation flange. A second compensation flange is fixedly connected to the lower surface of the corrugated expansion tube, and adjusting seats are fixedly connected to both sides of the second compensation flange. A bearing is fixedly connected to the upper surface of the fixed seat, and a threaded screw is rotatably connected inside the bearing. The other end of the threaded screw is threaded to the adjusting seat. A protective structure is provided on the surface of the corrugated expansion tube. Two retaining grooves are fixedly connected to the surfaces of both the first and second compensation flanges.

[0007] As a further improvement of this utility model, the protective structure includes an outer protective shell, an inner protective shell is movably connected inside the outer protective shell, a return spring is fixedly connected to the surface of both the outer and inner protective shells, and an elastic plate adapted to the slot is fixedly connected to the other end of the return spring.

[0008] As a further improvement of this utility model, the upper surfaces of the fixed flange, the first compensation flange and the second compensation flange are each provided with several threaded holes, and the upper surface of the fixed flange is threaded with several fixing bolts that are compatible with the threaded holes.

[0009] As a further improvement of this utility model, a sealing groove is provided on the upper surface of the first compensation flange and the lower surface of the second compensation flange, and a sealing block adapted to the sealing groove is fixedly connected to the upper surface of the fixed flange.

[0010] As a further improvement of this utility model, a gear nut is fixedly connected to one end of the threaded screw.

[0011] As a further improvement of this utility model, the inside of the corrugated expansion tube is provided with an anti-corrosion coating, and the material of the anti-corrosion coating is polyurethane anti-corrosion paint.

[0012] The beneficial effects of this utility model are:

[0013] By using a corrugated expansion joint and a threaded rod, the first compensation flange on the corrugated expansion joint is fixed to the fixed flange of one of the pipes with fixing bolts. The threaded rod is rotated by the gear nut, which causes the adjusting seat to move the second compensation flange toward the fixed flange of the other pipe until the sealing groove matches the sealing block. The sealing bolts are then used to fix it in place. This allows the device to connect pipes at different distances, thus avoiding the impact of pipe distance errors during construction.

[0014] By setting up a protective structure, during use, the elastic clamping plate of the outer protective shell is first inserted into the groove of the second compensating flange. The return spring then clamps the elastic clamping plate into the groove. Next, the inner protective shell is moved towards the first compensating flange until the elastic clamping plate of the inner protective shell is inserted into the groove, thereby fixing the outer and inner protective shells to the device. When the second compensating flange moves the corrugated expansion tube, the inner protective shell moves along with it within the outer protective shell. This allows the device to protect the corrugated expansion tube and adjust its position as the corrugated expansion tube expands and contracts, preventing damage to the corrugated expansion tube from external impacts. Disassembly is simple, use is convenient, and the safety of the device is increased. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a compensation adjustment limiting structure proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a corrugated telescopic tube with a compensation adjustment and limiting structure proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the protective structure of the compensation adjustment limiting structure proposed in this utility model.

[0018] In the diagram: 1 Corrugated expansion tube, 2 Fixed flange, 3 First compensation flange, 4 Fixed seat, 5 Second compensation flange, 6 Adjusting seat, 7 Bearing, 8 Threaded screw, 9 Slotted part, 10 Outer protective shell, 11 Inner protective shell, 12 Return spring, 13 Elastic plate, 14 Threaded hole, 15 Fixing bolt, 16 Sealing groove, 17 Sealing block, 18 Gear nut, 19 Anti-corrosion coating. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figures 1-3 A compensation adjustment and limiting structure includes a corrugated expansion tube 1 and a fixed flange 2. A first compensation flange 3 is fixedly connected to the upper surface of the corrugated expansion tube 1. Fixed seats 4 are fixedly connected to both sides of the first compensation flange 3. A second compensation flange 5 is fixedly connected to the lower surface of the corrugated expansion tube 1. Adjustment seats 6 are fixedly connected to both sides of the second compensation flange 5. A bearing 7 is fixedly connected to the upper surface of the fixed seat 4. A threaded screw 8 is rotatably connected inside the bearing 7. The other end of the threaded screw 8 is threaded to the adjustment seat 6. A protective structure is provided on the surface of the corrugated expansion tube 1. Two retaining grooves 9 are fixedly connected to the surfaces of the first compensation flange 3 and the second compensation flange 5.

[0021] In this utility model, the protective structure includes an outer protective shell 10, an inner protective shell 11 is movably connected inside the outer protective shell 10, and a return spring 12 is fixedly connected to the surface of both the outer protective shell 10 and the inner protective shell 11. The other end of the return spring 12 is fixedly connected to an elastic plate 13 that is adapted to the slot 9. By setting the elastic plate 13 and the slot 9, the outer protective shell 10 and the inner protective shell 11 can be easily installed on the device.

[0022] The upper surfaces of the fixed flange 2, the first compensation flange 3, and the second compensation flange 5 are all provided with several threaded holes 14. The upper surface of the fixed flange 2 is threaded with several fixing bolts 15 that are compatible with the threaded holes 14. The upper surface of the first compensation flange 3 and the lower surface of the second compensation flange 5 are both provided with sealing grooves 16. The upper surface of the fixed flange 2 is fixedly connected with a sealing block 17 that is compatible with the sealing groove 16. One end of the threaded rod 8 is fixedly connected with a gear nut 18. The inside of the corrugated expansion tube 1 is provided with an anti-corrosion coating 19. The anti-corrosion coating 19 is made of polyurethane anti-corrosion paint. The sealing performance of the device is ensured by setting the sealing groove 16 and the sealing block 17. The anti-corrosion coating 19 allows the device to be used for a longer period of time.

[0023] In use, this utility model is first inserted into the slot 9 of the second compensating flange 5 by inserting the elastic plate 13 of the outer protective shell 10. The return spring 12 then engages the elastic plate 13 with the slot 9. Next, the inner protective shell 11 is moved toward the first compensating flange 3 until the elastic plate 13 of the inner protective shell 11 is inserted into the slot 9 of the first compensating flange 3, thereby fixing the outer protective shell 10 and the inner protective shell 11 to the device. Then, the first compensating flange 3 on the corrugated expansion pipe 1 is fixed to the fixed flange 2 of one of the pipes by fixing bolts 15. The nut 18 rotates the threaded screw 8, causing the adjusting seat 6 to move the second compensating flange 5 towards the fixed flange 2 of another pipe until the sealing groove 16 matches the sealing block 17. The fixing bolts 15 are used to fix it, thus connecting pipes of different distances together. Finally, as the second compensating flange 5 moves the corrugated expansion pipe 1 to expand and contract, the inner protective shell 11 also moves within the outer protective shell 10, thus protecting the corrugated expansion pipe 1. When disassembly is required, the elastic plate 13 is pressed to remove it from the slot 9, thereby removing the outer protective shell 10 and the inner protective shell 11.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A compensation adjustment limit structure, comprising a bellows expansion tube (1) and a fixed flange (2), characterized in that: The upper surface of the bellows expansion tube (1) is fixedly connected to a first compensation flange (3), and both sides of the first compensation flange (3) are fixedly connected to a fixing seat (4). The lower surface of the bellows expansion tube (1) is fixedly connected to a second compensation flange (5), and both sides of the second compensation flange (5) are fixedly connected to an adjustment seat (6). The upper surface of the fixing seat (4) is fixedly connected to a bearing (7), and a threaded screw (8) is rotatably connected inside the bearing (7), and the other end of the threaded screw (8) is threadedly connected to the adjustment seat (6). A protective structure is provided on the surface of the bellows expansion tube (1), and two slot components (9) are fixedly connected to the surfaces of the first compensation flange (3) and the second compensation flange (5).

2. A compensation adjustment limit structure according to claim 1, characterized in that: The protective structure comprises an outer protective shell (10), the interior of the outer protective shell (10) is movably connected to an inner protective shell (11), the surfaces of the outer protective shell (10) and the inner protective shell (11) are fixedly connected to a return spring (12), and the other end of the return spring (12) is fixedly connected to an elastic clamping plate (13) adapted to the clamping slot (9).

3. The compensation adjustment limit structure according to claim 1, characterized in that: The upper surfaces of the fixed flange (2), the first compensation flange (3) and the second compensation flange (5) are all provided with a plurality of threaded holes (14), and the upper surface of the fixed flange (2) is threadedly connected with a plurality of fixing bolts (15) matched with the threaded holes (14).

4. The compensation adjustment limit structure according to claim 1, characterized in that: The upper surface of the first compensating flange (3) and the lower surface of the second compensating flange (5) are both provided with sealing grooves (16), and the upper surface of the fixed flange (2) is fixedly connected with a sealing block (17) adapted to the sealing groove (16).

5. The compensation adjustment limit structure according to claim 1, characterized in that: One end of the threaded screw rod (8) is fixedly connected to a gear nut (18).

6. The compensation adjustment limit structure according to claim 1, characterized in that: The interior of the bellows expansion tube (1) is provided with an anti-corrosion coating (19), and the material of the anti-corrosion coating (19) is polyurethane anti-corrosion paint.

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