A valve well butt joint protection device for waste incineration drainage pipeline
By combining protective sleeves, docking plates, and end caps, and using tie rods and locking nuts, the valve wells of waste incineration drainage pipelines can be quickly connected and hoisted. This solves the problems of low support strength and poor stability, enhances the strength and stability of the supporting soil of the protective device, and improves corrosion resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUNING GUANGYE YUENENG ENVIRONMENTAL PROTECTION ENERGY CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-31
AI Technical Summary
The existing valve well connection protection devices for waste incineration drainage pipelines are not convenient for quick connection and hoisting, have low support strength and poor stability, and are prone to collapse.
It adopts a combination structure of protective sleeve, docking plate and end sleeve, and uses tie rod and locking nut to achieve quick fixation. Combined with anti-corrosion coating and triangular reinforcing plate, it improves support strength and stability.
It enables rapid docking and hoisting of valve wells, improves the strength and stability of the supporting soil, avoids collapse, and enhances the corrosion resistance and durability of the device with anti-corrosion coating and reinforcing plates.
Smart Images

Figure CN224578739U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of valve well docking protection devices, specifically to a valve well docking protection device for waste incineration drainage pipelines. Background Technology
[0002] A valve well is a structure in an underground pipeline system used for the installation, operation, and maintenance of valves, control equipment, or metering instruments. It typically consists of a well casing, a well cover, valves, and auxiliary accessories. During construction, a valve well pit needs to be excavated to facilitate construction of the well body. Protective devices must be installed within the pit to support the lateral soil and prevent collapse.
[0003] Existing valve well docking protection devices for waste incineration drainage pipelines are not convenient for rapid on-site docking and hoisting, and suffer from low support strength and poor stability. Therefore, it is necessary to provide a valve well docking protection device that can be quickly docked and installed, with good support and high stability. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a valve well docking protection device for waste incineration drainage pipelines. The valve well docking protection device for waste incineration drainage pipelines enables rapid docking and hoisting on site, provides high strength and good stability to the supporting soil, and avoids collapse caused by untimely support.
[0005] The technical solution adopted by this utility model to solve its technical problem is a valve well docking protection device for waste incineration drainage pipeline, including a protective sleeve, a docking plate and an end sleeve. The bottom outer side of the end sleeve is fitted with a docking plate welded on it. A limit groove is opened at the bottom of the end sleeve and inside the docking plate. Reserved holes are opened at equal intervals on the docking plate.
[0006] A protective sleeve is clamped between the two sets of end sleeves, and a tie rod is inserted into the reserved hole corresponding to the two sets of docking plates. Both ends of the tie rod are provided with external threads, and a locking nut is screwed onto both ends of the tie rod through the external threads. The locking nut is located on the top of the docking plate.
[0007] By adopting the above technical solution, the valve well docking protection device for waste incineration drainage pipelines can be quickly docked and hoisted on site, supporting the soil with high strength and good stability, thus avoiding collapse caused by untimely support.
[0008] Specifically, the outer surface of the protective sleeve is coated with an anti-corrosion coating, which is made of polytetrafluoroethylene.
[0009] By adopting the above technical solutions, the anti-corrosion effect of the protective sleeve during use is improved, the coating is not easy to peel off, does not easily stick to the soil, and is easy to clean.
[0010] Specifically, both ends of the protective sleeve are welded with enlarged ends, and the enlarged ends are located in the limiting groove.
[0011] Specifically, foot pedals are welded at equal intervals on the inner side of the protective sleeve.
[0012] By adopting the above technical solution, after assembly, the foot pedal facilitates the entry of construction personnel into the protective sleeve to construct the valve well.
[0013] Specifically, triangular reinforcing plates are welded at equal intervals at the connecting seams on the outer sides of the end cap and the mating plate.
[0014] Specifically, the protective sleeve, end sleeve, and docking plate are all made of iron.
[0015] The beneficial effects of this utility model are:
[0016] (1) The valve well docking protection device for waste incineration drainage pipeline described in this utility model is used to hoist the valve well foundation pit after the excavation is completed. The two ends of the protective sleeve are placed in the limiting groove of the end sleeve, and tie rods are inserted into the reserved holes corresponding to the two sets of docking plates. The two sets of end sleeves are tightened and fixed by locking nuts and the external threads at the ends of the tie rods, thereby stably clamping the protective sleeve and effectively supporting the soil.
[0017] (2) The valve well docking protection device for waste incineration drainage pipeline described in this utility model enables rapid docking and hoisting on site, supports the soil with high strength and good stability, avoids collapse caused by untimely support, uses triangular reinforcing plates to improve the strength and rigidity between the end sleeve and the docking plate, and is not easily deformed. The anti-corrosion coating is made of polytetrafluoroethylene material, which improves the anti-corrosion effect of the protective sleeve during use. The coating is not easy to peel off, does not easily stick to the soil, and is easy to clean. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is an exploded view of the present invention;
[0021] Figure 3 This is a schematic diagram of the anti-corrosion coating structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the external thread structure of this utility model.
[0023] In the diagram: 1. Enlarged end; 2. Protective sleeve; 3. Locking nut; 4. Pull screw; 5. Connecting plate; 6. End sleeve; 7. Foot pedal; 8. Triangular reinforcing plate; 9. External thread; 10. Limiting groove; 11. Reserved hole; 12. Anti-corrosion coating. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] To enable rapid on-site connection and hoisting of the valve well connection protection device used in waste incineration drainage pipelines, the supporting soil must be strong and stable to prevent collapse caused by untimely support. Figure 1-4 As shown, the present invention provides a valve well docking protection device for waste incineration drainage pipelines, including a protective sleeve 2, a docking plate 5 and an end sleeve 6. The bottom outer side of the end sleeve 6 is fitted with the docking plate 5 and welded thereon. The bottom of the end sleeve 6 and the inner side of the docking plate 5 are provided with a limiting groove 10. The docking plate 5 is provided with reserved holes 11 at equal intervals.
[0026] A protective sleeve 2 is clamped between the two sets of end sleeves 6. A tie rod 4 is inserted into the reserved hole 11 corresponding to the two sets of docking discs 5. Both ends of the tie rod 4 are provided with external threads 9, and a locking nut 3 is screwed onto both ends of the tie rod 4 through the external threads 9. The locking nut 3 is located on the top of the docking disc 5.
[0027] When in use, the valve well docking protection device for waste incineration drainage pipelines can be quickly docked and hoisted on site, supporting the soil with high strength and good stability, avoiding collapse caused by untimely support.
[0028] For example, such as Figure 1 , 3 As shown, the present invention also includes that the outer surface of the protective sleeve 2 is coated with an anti-corrosion coating 12, and the anti-corrosion coating 12 is specifically made of polytetrafluoroethylene material.
[0029] When in use, the protective sleeve 2 improves the anti-corrosion effect during use, the coating is not easy to peel off, does not easily stick to the soil, and is easy to clean.
[0030] For example, such as Figure 1 , 2 As shown, the present invention also includes that both ends of the protective sleeve 2 are welded with enlarged ends 1 and the enlarged ends 1 are located in the limiting groove 10.
[0031] When in use, place both ends of the protective sleeve 2 into the limiting groove 10 of the end sleeve 6 to facilitate pre-alignment during assembly.
[0032] For example, such as Figure 1 As shown, the present invention also includes foot pedals 7 welded at equal intervals on the inner side of the protective sleeve 2.
[0033] When in use, after assembly, the foot pedal 7 allows construction workers to enter the protective sleeve 2 to build the valve well.
[0034] For example, such as Figure 1 As shown, this utility model also includes triangular reinforcing plates 8 welded at equal intervals at the connecting seam on the outer side of the end sleeve 6 and the docking plate 5.
[0035] During use, the triangular reinforcing plate 8 is used to improve the strength and rigidity between the end sleeve 6 and the mating plate 5, making it less prone to deformation.
[0036] For example, such as Figure 1 As shown, the present invention also includes that the protective sleeve 2, the end sleeve 6 and the docking plate 5 are all made of iron.
[0037] When in use, iron materials are inexpensive, easy to process and manufacture, have high strength, and good resistance to deformation.
[0038] When this utility model is in use, after the excavation of the valve well foundation pit is completed, the docking protection device is hoisted by a lifting device, and the two ends of the protective sleeve 2 are placed in the limiting groove 10 of the end sleeve 6, and the tie rod 4 is inserted into the reserved hole 11 corresponding to the two sets of docking plates 5.
[0039] By tightening the lock nut 3 and the external thread 9 at the end of the tie rod 4, the two sets of end sleeves 6 are tightened and fixed, thereby stably clamping the protective sleeve 2, effectively supporting the soil, realizing rapid docking and hoisting on site, supporting the soil with high strength and good stability, and avoiding collapse caused by untimely support;
[0040] The triangular reinforcing plate 8 is used to improve the strength and rigidity between the end sleeve 6 and the mating plate 5, making it less prone to deformation. The anti-corrosion coating 12 is made of polytetrafluoroethylene material, which improves the anti-corrosion effect of the protective sleeve 2 during use. The coating is not easy to peel off, does not easily stick to the soil, and is easy to clean.
[0041] 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 descriptions of the above embodiments and specifications 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A valve shaft docking protection device for a waste incineration drainage pipeline, characterized in that, It includes a protective sleeve (2), a docking plate (5) and an end sleeve (6). The bottom outer side of the end sleeve (6) is fitted with a docking plate (5) and welded thereon. A limiting groove (10) is opened at the bottom of the end sleeve (6) and inside the docking plate (5). Reserved holes (11) are opened at equal intervals on the docking plate (5). A protective sleeve (2) is held between the two sets of end sleeves (6). A tie rod (4) is inserted into the reserved hole (11) corresponding to the two sets of docking discs (5). Both ends of the tie rod (4) are provided with external threads (9), and both ends of the tie rod (4) are screwed with locking nuts (3) through the external threads (9). The locking nuts (3) are located on the top of the docking disc (5).
2. A valve shaft protection device for a waste incineration drainage pipeline according to claim 1, characterized in that, The outer surface of the protective sleeve (2) is coated with an anti-corrosion coating (12), and the anti-corrosion coating (12) is specifically made of polytetrafluoroethylene material.
3. A valve shaft protection device for a waste incineration drainage pipeline according to claim 1, characterized in that, Both ends of the protective sleeve (2) are welded with enlarged ends (1), and the enlarged ends (1) are located in the limiting groove (10).
4. A valve shaft protection device for a waste incineration drainage pipeline according to claim 1, characterized in that, Foot pedals (7) are welded at equal intervals on the inner side of the protective sleeve (2).
5. A valve pit interface protection device for a waste incineration drainage conduit according to claim 1, characterised in that, Triangular reinforcing plates (8) are welded at equal intervals at the connecting seams on the outer sides of the end sleeve (6) and the docking plate (5).
6. A valve pit interface protection device for a waste incineration drainage conduit according to claim 1, characterised in that, The protective sleeve (2), end sleeve (6) and docking plate (5) are all made of iron.