CN220891173U - Improved pipe medium-sized backflow preventer - Google Patents
Improved pipe medium-sized backflow preventer Download PDFInfo
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- CN220891173U CN220891173U CN202322750032.0U CN202322750032U CN220891173U CN 220891173 U CN220891173 U CN 220891173U CN 202322750032 U CN202322750032 U CN 202322750032U CN 220891173 U CN220891173 U CN 220891173U
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- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000002265 prevention Effects 0.000 description 5
- 238000010030 laminating Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of pipe medium-sized anti-backflow devices, in particular to an improved pipe medium-sized anti-backflow device which comprises a straight pipe and a duckbill valve, wherein the inner side of the straight pipe is fixedly connected with the outer side of the duckbill valve, the upper side and the lower side of the straight pipe are respectively fixedly connected with a shell, the outer wall of the shell is connected with a mounting structure, the outer side of the mounting structure is connected with a handle, the inner wall of the straight pipe is attached with a retainer, the inner wall of the retainer is attached with a pipeline, a vertical rod is driven to rotate by a vertical rod through the mounting structure, the rotating vertical rod drives a square plate to be attached to the inner wall of the shell to move downwards, the square plate drives an inserted rod to move downwards, the moved inserted rod penetrates through the straight pipe and is connected with a round opening on the outer wall of the pipeline to complete the connection of the straight pipe and the pipeline, then the handle is matched to drive a round ring to rotate downwards on the outer wall of a thread, the bottom of the round ring is abutted against the top of a gasket, the mounting stability of the pipe medium-sized anti-backflow device is improved, and the safety hidden trouble of the pipe medium-sized anti-backflow device is eliminated.
Description
Technical Field
The utility model relates to the technical field of improved pipe medium-sized backflow preventer, in particular to an improved pipe medium-sized backflow preventer.
Background
The pipe medium-sized backflow preventer is suitable for structures such as municipal drainage pipelines or intercepting wells, can intercept and prevent backflow, and does not influence flood discharge equipment when the pipe medium-sized backflow preventer is completely opened.
For example, the utility model can reduce the possibility of the occurrence of river water backflow, but in the use of the medium-sized backflow preventer, the connecting piece adopts the form of an elastic clamping piece and a jack to position, however, the jacks are spaced, after the pipeline is installed, the positions of the jacks can not be aligned with the elastic clamping piece, dislocation phenomenon can easily occur, the fixing piece can not be positioned, the medium-sized backflow preventer can loose the connecting part of the pipeline, the installation stability of the medium-sized backflow preventer is reduced, and the medium-sized backflow preventer has potential safety hazards.
Disclosure of utility model
The utility model aims to solve the problem that the safety hidden trouble exists in the medium-sized anti-backflow device because the installation stability of the medium-sized anti-backflow device is reduced, and provides an improved medium-sized anti-backflow device.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a prevent flowing backward ware in improvement formula pipe, includes straight tube and duckbill valve, the inboard of straight tube and the outside looks rigid coupling of duckbill valve, the upper and lower both sides of straight tube are the rigid coupling respectively has the shell, the outer wall connection of shell has mounting structure, mounting structure's outside is connected with the handle, the laminating of the inner wall of straight tube has the retainer, the inner wall laminating of retainer has the pipeline.
Preferably, the mounting structure comprises a vertical rod and a vertical rod, the outer wall of the vertical rod is rotationally connected with the outer wall of the shell, the outer side of the vertical rod is fixedly connected with the inner side of the vertical rod, threads are machined on the outer wall of the vertical rod, a circular ring is connected with the threads on the outer wall of the threads, a square plate is connected with the inner side of the outer wall of the vertical rod, and a plug rod is fixedly connected with the inner side of the square plate.
Preferably, the outer wall of the square plate is in sliding clamping connection with the inner wall of the shell, and the inner side of the outer wall of the inserted link is in sliding clamping connection with the outer wall round opening of the straight pipe.
Preferably, the outer side of the circular ring is fixedly connected with the inner side of the grip.
Preferably, a gasket is fixedly connected to the outer side of the shell, and the gasket is positioned on the outer wall of the vertical rod.
Preferably, the outside of the gasket is adjacent to the inside of the ring.
The utility model provides an improved pipe medium-sized backflow preventer, which has the beneficial effects that: the vertical rod is driven to rotate through the installation structure, the vertical rod drives the square plate to be attached to the inner wall of the shell to move downwards, the square plate drives the inserted rod to move downwards, the moved inserted rod penetrates through the straight pipe to be inserted into the round opening of the outer wall of the pipeline to complete the communication between the straight pipe and the pipeline, and then the handle is matched to drive the circular ring to rotate downwards on the outer wall of the thread, so that the bottom of the circular ring is abutted against the top of the gasket, the installation stability of the pipe-medium-sized backflow prevention is improved, and the potential safety hazard of the pipe-medium-sized backflow prevention is eliminated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the connection relationship among the vertical bars, the vertical bars and the square plates in FIG. 1;
FIG. 3 is a schematic diagram of the structure of FIG. 1A;
fig. 4 is a schematic view showing the connection relationship among the retainer, the bent plate and the bolt in fig. 1.
In the figure: 1. straight pipe, 2, mounting structure, 201, vertical rod, 202, vertical rod, 203, screw thread, 204, circular ring, 205, square plate, 206, inserted link, 3, outer shell, 4, duckbill valve, 5, retainer, 6, pipeline, 7, handle, 8, gasket, 9, curved plate, 10 and bolt.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
Example 1:
Please refer to fig. 1-4: in this embodiment, a reverse-flow preventer in improvement type pipe medium-sized, including straight tube 1 and duckbill valve 4, the inboard of straight tube 1 is the rigid coupling mutually with the outside of duckbill valve 4, how duckbill valve 4 operation use has been prior art, do not make too much and state the model and select according to the user demand, the upper and lower both sides of straight tube 1 are the rigid coupling respectively has shell 3, the outer wall connection of shell 3 has mounting structure 2, the outside of mounting structure 2 is connected with handle 7, the laminating of the inner wall of straight tube 1 has retainer 5, the retainer 5 material is rubber, the inner wall laminating of retainer 5 has pipeline 6.
The mounting structure 2 comprises a vertical rod 201 and a vertical rod 202, wherein the outer wall of the vertical rod 201 is rotationally connected with the outer wall of the shell 3, the vertical rod 201 is stressed to rotate through a bearing on the outer wall of the shell 3, the outer side of the vertical rod 201 is fixedly connected with the inner side of the vertical rod 202, threads 203 are machined on the outer wall of the vertical rod 202, a circular ring 204 is connected with the outer wall of the threads 203 in a threaded manner, the circular ring 204 is stressed to vertically rotate through the outer wall of the threads 203, a square plate 205 is connected with the inner side of the outer wall of the vertical rod 201 in a threaded manner, an inserting rod 206 is fixedly connected with the inner side of the square plate 205, the outer wall of the square plate 205 is in sliding clamping connection with the inner wall of the shell 3, the inner side of the outer wall of the inserting rod 206 is in sliding clamping connection with the circular opening of the outer wall of the straight pipe 1, the outer side of the circular ring 204 is fixedly connected with the inner side of the grip 7, and the grip 7 is convenient for driving the circular ring 204 to vertically rotate;
The vertical rod 202 drives the vertical rod 201 to rotate in the installation structure 2, the rotating vertical rod 201 drives the square plate 205 to be attached to the inner wall of the shell 3 and move downwards, the square plate 205 drives the inserted rod 206 to move downwards, the moved inserted rod 206 penetrates through the straight pipe 1 and the circular opening of the outer wall of the pipeline 6 to be inserted, the straight pipe 1 and the pipeline 6 are communicated, then the handle 7 is matched to drive the circular ring 204 to rotate downwards on the outer wall of the thread 203, the bottom of the circular ring 204 is abutted against the top of the gasket 8, the installation stability of the pipe-medium-sized backflow prevention is improved, and the potential safety hazard of the pipe-medium-sized backflow prevention is eliminated.
The outside rigid coupling of shell 3 has packing ring 8, and packing ring 8 is the material metal ring, and packing ring 8 is located the outer wall of montant 201, and the outside of packing ring 8 is adjacent with the inboard of ring 204.
Working principle:
when the backflow preventer is used, the inner side of the outer wall of the pipeline 6 is firstly spliced with the inner wall of the straight pipe 1, the outer wall of the straight pipe 1 is attached to the inner wall of the retainer 5, then the upright rod 202 drives the upright rod 201 to rotate, the rotating upright rod 201 drives the square plate 205 to be attached to the inner wall of the shell 3 to move downwards, the square plate 205 drives the inserting rod 206 to move downwards, the moving inserting rod 206 penetrates through the straight pipe 1 and the circular opening of the outer wall of the pipeline 6 to be spliced, the communication between the straight pipe 1 and the pipeline 6 is completed, the handle 7 is matched to drive the circular ring 204 to rotate downwards on the outer wall of the thread 203, the bottom of the circular ring 204 is abutted against the top of the gasket 8, and the position fixing of the opposite rod 202 is completed.
The backflow preventer works:
When the water source moves from back to front, the water pressure can jack the duckbill valve 4 to discharge the water source, and when the water level rises and flows back, the water pressure can not jack the duckbill valve 4 due to the characteristics of the duckbill valve 4, so that the backflow prevention is realized
Example 2:
Please refer to fig. 1-4: in this embodiment, an improved pipe middle-sized backflow preventer further comprises a curved plate 9 and a bolt 10, wherein the inner side of the curved plate 9 is fixedly connected with the outer side of the retainer 5, the inner wall of the curved plate 9 is in threaded connection with the outer wall of the bolt 10, and the inner side of the outer wall of the bolt 10 is in threaded connection with the outer side of the straight cylinder 1.
Working principle:
when the retainer 5 is replaced, the bolt 10 is rotated outward, the inner side of the outer wall of the bolt 10 is separated from the straight pipe 1, and then the bent plate 9 is pulled outward, so that the bent plate 9 drives the retainer 5 to be separated from the inner wall of the straight pipe 1.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (5)
1. The utility model provides an improvement pipe medium-sized anti-backflow device, includes straight tube (1) and duckbill valve (4), its characterized in that: the inner side of the straight pipe (1) is fixedly connected with the outer side of the duckbill valve (4), the upper side and the lower side of the straight pipe (1) are fixedly connected with a shell (3) respectively, the outer wall of the shell (3) is connected with a mounting structure (2), the outer side of the mounting structure (2) is connected with a handle (7), the inner wall of the straight pipe (1) is attached with a retainer (5), and the inner wall of the retainer (5) is attached with a pipeline (6);
mounting structure (2) are including montant (201) and pole setting (202), the outer wall of montant (201) rotates with the outer wall of shell (3) and is connected, the outside of montant (201) is fixed with the inboard of pole setting (202) mutually, the outer wall processing of pole setting (202) has screw thread (203), the outer wall threaded connection of screw thread (203) has ring (204), the outer wall inboard threaded connection of montant (201) has square board (205), the inboard rigid coupling of square board (205) has inserted bar (206).
2. An improved in-line backflow preventer according to claim 1, wherein: the outer wall of square board (205) and the inner wall slip joint of shell (3), the outer wall inboard of inserted bar (206) and the outer wall circle mouth slip joint of straight tube (1).
3. An improved in-line backflow preventer according to claim 2, wherein: the outer side of the circular ring (204) is fixedly connected with the inner side of the handle (7).
4. An improved in-line backflow preventer as defined in claim 3, wherein: the outer side of the shell (3) is fixedly connected with a gasket (8), and the gasket (8) is positioned on the outer wall of the vertical rod (201).
5. An improved in-line backflow preventer according to claim 4, wherein: the outside of the gasket (8) is adjacent to the inside of the ring (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322750032.0U CN220891173U (en) | 2023-10-12 | 2023-10-12 | Improved pipe medium-sized backflow preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322750032.0U CN220891173U (en) | 2023-10-12 | 2023-10-12 | Improved pipe medium-sized backflow preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220891173U true CN220891173U (en) | 2024-05-03 |
Family
ID=90874684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322750032.0U Active CN220891173U (en) | 2023-10-12 | 2023-10-12 | Improved pipe medium-sized backflow preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220891173U (en) |
-
2023
- 2023-10-12 CN CN202322750032.0U patent/CN220891173U/en active Active
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