CN219062538U - Novel flap valve structure - Google Patents
Novel flap valve structure Download PDFInfo
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- CN219062538U CN219062538U CN202223394884.2U CN202223394884U CN219062538U CN 219062538 U CN219062538 U CN 219062538U CN 202223394884 U CN202223394884 U CN 202223394884U CN 219062538 U CN219062538 U CN 219062538U
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- flap valve
- valve body
- door frame
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- outlet pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The utility model discloses a novel flap valve structure, which belongs to the technical field of accessories of liquid pumps and comprises a flap valve body and a door frame at the tail end outlet of a water outlet pipe, wherein the flap valve body is detachably connected with a water outlet pipe top connecting seat; the top of the flap valve body is matched with a height adjusting structure on the connecting seat through a turnover assembly; the sealing surface of the flap valve body matched with the door frame is a conical surface inclined inwards; the tail end of the water outlet pipe is an inclined plane which is obliquely upwards opened, and the flap valve body is in sealing fit with the door frame under the action of dead weight, so that the sealing performance is good. The door frame and the flap valve body are sealed by conical surfaces, so that the door frame and the flap valve body are pressed more tightly under the action of water pressure, the water pressure is higher, and the sealing effect is better; through setting up high adjustment structure on the connecting seat, the upper and lower position of the relative door frame of adjustable flap valve body. The utility model can improve the sealing performance of the door frame and the flap valve body, and the flap valve body and the connecting seat are detachably connected, so that the flap valve is convenient to replace and safe and reliable to operate.
Description
Technical Field
The utility model belongs to the technical field of accessories of liquid pumps, and particularly relates to a novel flap valve structure.
Background
The flap valve is usually arranged at the tail end of the drainage pipeline and has the functions of preventing the external water from flowing backward and overflowing outwards. The flat contact between the door and the door frame of the conventional door beating device is realized, the relative position between the door and the door frame is not adjustable (or the adjustment range is small), and in practical application, the situation of poor contact (gaps) between the door and the door frame is often encountered, so that water leakage is caused.
At present, the conventional method for solving the problems is to replace a sealing gasket with larger compression amount to fill the gap between the flap valve and the door frame, and the sealing gasket is a loss part and needs to be replaced periodically, so that the flap valve device in a deep well is very difficult to replace and has high risk.
Disclosure of Invention
The utility model aims to provide a novel flap valve structure, and aims to solve the technical problems of poor sealing effect, high replacement difficulty and high risk of a flap valve device in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the novel flap valve structure comprises a flap valve body and a door frame arranged at the tail end outlet of a water outlet pipe, wherein a connecting seat is arranged on the top wall of the water outlet pipe, and the flap valve body is detachably connected with the connecting seat; the connecting seat is provided with a height adjusting structure, and the top of the flap valve body is matched with the height adjusting structure for adjusting the mounting height of the flap valve body through a turnover assembly; the sealing surface of the flap valve body matched with the door frame is a conical surface inclined inwards; the door frame is obliquely arranged at the tail end of the water outlet pipe, the tail end of the water outlet pipe is an inclined plane which is obliquely upwards opened, and the cross sections of the tapered hole of the door frame and the edge of the flap valve body are elliptical.
Preferably, the turnover assembly comprises a connecting frame, a rotating shaft and connecting bolts, wherein the connecting frame is connected with the rotating shaft, the number of the connecting bolts is two, one ends of the connecting bolts are provided with connecting holes, two ends of the rotating shaft are respectively in running fit with the connecting holes of the two connecting bolts, and the tail ends of screw rods of the connecting bolts penetrate through the connecting seat to be matched with the fastening nuts.
Preferably, the connecting seat comprises an arc-shaped connecting plate and an L-shaped support, the bottom of the support is welded and fixed on the connecting plate, and the connecting plate is attached to and fixed on the outer wall of the water outlet pipe; the height adjusting structure is two kidney-shaped holes arranged on the mounting plate at the top of the support, the length direction of the kidney-shaped holes is arranged along the vertical direction, and the connecting bolts horizontally penetrate through the kidney-shaped holes; the fastening nuts are two and are respectively arranged on two sides of the vertical plate, and locking gaskets are arranged between the fastening nuts and the vertical plate.
Preferably, the connecting frame comprises two parallel connecting lugs, and the two connecting lugs are connected through a connecting rod; the upper end of the connecting lug is provided with a polygonal hole, and the two ends of the rotating shaft are provided with polygonal column sections matched with the square holes.
Preferably, two ends of the rotating shaft are matched with the nuts, the polygon prism section is arranged on the inner side of the threaded section at the tail end of the rotating shaft, and a cylindrical section in running fit with the connecting hole at the tail end of the connecting bolt is arranged between the polygon prism section and the threaded section; the length of the cylindrical section is greater than the length of the connecting hole.
Preferably, the flap valve body comprises a bottom plate, a conical eave and reinforcing ribs on the outer surface of the conical eave, wherein the bottom of the conical eave is fixed on the peripheral edge of the bottom plate, and the reinforcing ribs are fixed on the outer surface of the bottom plate and are fixedly connected with the conical surface on the inner side of the conical eave.
Preferably, the reinforcing rib comprises four ribs and an annular supporting sleeve, the supporting sleeve is fixed in the middle of the outer surface of the bottom plate, the four ribs are radially and uniformly distributed around the supporting sleeve, one end of each rib is fixedly connected with the supporting sleeve, and the other end of each rib is fixedly connected with the inner conical surface of the conical eave; the connecting lugs are fixed on the inner conical surface of the conical eave.
Preferably, the included angle between the plane where the door frame is positioned and the vertical plane is beta, and beta is more than or equal to 15 degrees and less than or equal to 25 degrees.
Preferably, the included angle between the conical surface of the door frame matched with the flap valve body and the corresponding outer wall surface is alpha, and alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: compared with the prior art, the utility model has the advantages that the matched sealing surfaces of the door frame and the flap valve body are designed to be conical surfaces, so that the sealing gasket is not needed to be used any more, the door frame and the flap valve body are only required to be installed and adjusted in place once, and the leakage problem is not worried in the later stage; the door frame and the flap valve body are sealed by conical surfaces, so that the door frame and the flap valve body are pressed more tightly under the action of water pressure, the water pressure is higher, and the sealing effect is better; meanwhile, the tail end of the water outlet pipe is designed to be an inclined plane, so that the flap valve body can be in sealing fit with the door frame under the action of dead weight, and the sealing performance is further improved; through setting up high adjustment structure on the connecting seat, the upper and lower position of the relative door frame of adjustable flap valve body. The utility model can improve the sealing performance of the door frame and the flap valve body, the flap valve body and the connecting seat are detachably connected, the replacement is convenient, and the operation is safe and reliable; meanwhile, the utility model has low manufacturing cost, can be widely applied to the reconstruction and the upgrade of the existing flap valve, and is convenient to popularize and apply.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic structural view of a novel flap valve structure according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of the spindle of FIG. 1;
FIG. 3 is a schematic view of the construction of the connecting bolt of FIG. 1;
FIG. 4 is a schematic view of the flap valve body of FIG. 1;
FIG. 5 is a schematic view of the installation of the connecting seat and the door frame of FIG. 1 on the water outlet pipe;
in the figure: 00-water outlet pipe; 1-flap valve body, 11-bottom plate, 12-conical eave, 13-reinforcing rib, 131-rib, 132-support sleeve; 2-rotating shaft, 20-threaded section, 21-polygonal prism section and 22-cylindrical section; 3-connecting frames, 31-connecting lugs, 32-connecting rods and 33-polygonal holes; 4-connecting bolts, 41-connecting holes and 42-screws; 5-fastening nuts, 6-locking gaskets, 7-connecting seats, 71-connecting plates, 72-supporting seats and 73-mounting plates; 8-door frame; 9-kidney-shaped holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the novel flap valve structure provided by the utility model comprises a flap valve body 1 and a door frame 8 arranged at the tail end outlet of a water outlet pipe 00, wherein a connecting seat 7 is arranged on the top wall of the water outlet pipe 00, and the flap valve body 1 is detachably connected with the connecting seat 7; the connecting seat 7 is provided with a height adjusting structure, and the top of the flap valve body 1 is matched with the height adjusting structure for adjusting the mounting height of the flap valve body 1 through a turnover assembly; the sealing surface of the flap valve body 1 matched with the door frame 8 is a conical surface inclined inwards; the door frame 8 is obliquely arranged at the tail end of the water outlet pipe 00, the tail end of the water outlet pipe 00 is an inclined plane which is obliquely upwards opened, and the cross sections of the tapered hole of the door frame 8 and the edge of the flap valve body 1 are elliptical. The clapping door body and the inclined door frame at the tail end of the water outlet pipe are in conical surface sealing fit, so that the sealing performance between the clapping door body and the inclined door frame can be improved; meanwhile, the flap valve body is detachably connected, so that replacement is convenient, the operation difficulty can be reduced, and the operation safety coefficient is improved.
When the door frame 8 and the flap valve body 1 are closed, the included angle between the plane of the outer side end surface of the door frame 8 and the vertical plane is beta, and beta is more than or equal to 15 degrees and less than or equal to 25 degrees; the included angle between the conical surface of the door frame 8 matched with the flap valve body 1 and the outer wall surface of the door frame 8 is alpha, and alpha is more than or equal to 30 degrees and less than or equal to 60 degrees. Thus, not only is the good sealing effect between the flap valve body 1 and the door frame 8 ensured, but also the flap valve body 1 can be smoothly opened by the impact force of incoming water when the water outlet pipe needs to discharge water. In general, the flap valve body 1 has an included angle with the vertical direction, where the included angle β can apply a part of the component of the dead weight of the flap valve body 1 to the sealing surface of the door frame 8 and the flap valve body 1, which is beneficial to further improving the sealing performance.
In a specific embodiment of the present utility model, as shown in fig. 1 and 3, the turnover assembly includes a connecting frame 3, a rotating shaft 2, and two connecting bolts 4, where the connecting frame 3 is connected with the rotating shaft 2, one end of each connecting bolt 4 is provided with a connecting hole 41, two ends of the rotating shaft 2 are respectively in running fit with the connecting holes 41 of the two connecting bolts 4, and the tail ends of screws 42 of the connecting bolts 4 penetrate through the connecting seat 7 to be matched with the fastening nuts 5. The adoption of the structure facilitates that the flap valve body only needs to rotate relative to the door frame by taking the connecting bolt as a fulcrum.
In the concrete manufacturing process, as shown in fig. 1 and 5, the connecting seat 7 comprises an arc-shaped connecting plate 71 and an L-shaped support 72, the bottom of the support 72 is welded and fixed on the connecting plate 71, and the connecting plate 71 is attached to and fixed on the outer wall of the water outlet pipe 00; the height adjusting structure is two kidney-shaped holes 9 arranged on the mounting plate 73 at the top of the support 72, the length direction of the kidney-shaped holes 9 is arranged along the vertical direction, and the connecting bolts 4 horizontally penetrate through the kidney-shaped holes 9; the fastening nuts 5 are two and are respectively arranged on two sides of the vertical plate, and a locking gasket 6 is arranged between the fastening nuts 5 and the vertical plate, so that the locking effect is further improved. The upper and lower positions of the flap valve body relative to the door frame can be adjusted by means of the kidney-shaped holes, so that the flap valve body is tightly attached to the door frame; meanwhile, the relative displacement between the flap valve body 1 and the door frame 8 is controlled by adjusting the length of the screw part of the connecting bolt inserted into the kidney-shaped hole.
As a preferable structure, as shown in fig. 1 and 4, the connecting frame 3 includes two parallel connecting lugs 31, and the two connecting lugs 31 are connected by a connecting rod 32; the upper end of the connecting lug 31 is provided with a polygonal hole 33, and the two ends of the rotating shaft 2 are provided with polygonal column sections 21 matched with the square holes 33. In this embodiment, a square hole is formed at the upper end of the connecting lug 31, and a quadrangular prism is correspondingly formed on the rotating shaft 2; and the connecting lugs are matched with the drilling set screws after the rotating shaft is installed in place, so that the flap valve body and the rotating shaft are reliably connected. The whole weight of the flap valve body can be reduced by adopting the connecting frame with the frame structure; meanwhile, the flap valve body and the rotating shaft can rotate around the connecting hole of the connecting bolt as a whole by means of the quadrangular prism on the rotating shaft and the square hole on the connecting lug.
In the specific assembly, as shown in fig. 2, two ends of the rotating shaft 2 are matched with nuts, the polygonal column section 21 is arranged on the inner side of the threaded section 20 at the tail end of the rotating shaft 2, and a cylindrical section 22 which is in running fit with the connecting hole 41 at the tail end of the connecting bolt 4 is arranged between the polygonal column section 21 and the threaded section 20; the length of the cylindrical section 22 is greater than the length of the connecting hole 41. By adopting the structure, the flap valve body can have axial displacement with a certain range relative to the rotating shaft, the degree of fit between the flap valve body and the door frame is further adjusted, and reliable sealing is ensured. When the flap valve body is installed in place, the nuts are utilized to limit the two ends of the rotating shaft, so that the axial displacement of the flap valve body and the rotating shaft is limited, and the axial movement of the rotating shaft is avoided.
In order to ensure good sealing effect, the pressure between the sealing surfaces of the conventional flap valve must be increased by the component of the dead weight of the flap valve, and after all, the pressure applied to the flap valve by water is limited. However, once the pipeline needs to be drained, if the flap valve is too heavy, a small amount of incoming water is difficult to open the flap valve. As a preferable structure, as shown in fig. 1 and 4, the flap valve body 1 includes a bottom plate 11, a tapered edge 12, and a reinforcing rib 13 on an outer surface thereof, wherein the bottom of the tapered edge 12 is fixed to a peripheral edge of the bottom plate 11, and the reinforcing rib 13 is fixed to the outer surface of the bottom plate 11, and is fixedly connected with an inner conical surface of the tapered edge 12. The reinforcing ribs 13 comprise four ribs 131 and an annular supporting sleeve 132, the supporting sleeve 132 is fixed in the middle of the outer surface of the bottom plate 11, the four ribs 131 are radially and uniformly distributed around the supporting sleeve 132, one end of each rib 131 is fixedly connected with the supporting sleeve 132, and the other end of each rib 131 is fixedly connected with the inner conical surface of the conical eave 12; the connecting lugs 31 are fixed on the inner conical surface of the conical eave 12. In the scheme, the flap valve body adopts a mode of arranging ribs at a plurality of positions of the main body thin steel plate, so that the weight can be reduced by more than half; meanwhile, the conical eave on the periphery of the flap valve body is matched with the conical surface of the door frame, and a good sealing effect can be achieved only by small pressure, so that the dead weight of the flap valve can be greatly reduced under the condition that the flap valve is guaranteed not to deform, and raw material expenses are saved.
In addition, the flap valve body adopting the structure meets the design requirement of light weight, and can reduce the pressure on water flow when the pump set drives the water flow in the water outlet pipe, thereby further reducing the energy consumption of the pump set.
The following are the design dimensions of some of the parts in one embodiment:
the length of the waist-shaped hole 9 on the mounting plate 73 of the connecting seat 7 is L1, and L1 is more than or equal to 15mm and less than or equal to 30mm; the length of the screw rod 42 of the connecting bolt 4 is L2, and L2 is more than or equal to 60mm and less than or equal to 75mm; the length difference between the cylindrical section on the rotating shaft 2 and the connecting hole on the connecting bolt 4 is X, namely the axial displacement between the flap valve body and the rotating shaft is X, X is more than or equal to-8 mm and less than or equal to 8mm.
The specific application process of the utility model is as follows:
when in installation, the door frame is fixed at the edge of the outlet of the water outlet pipeline, and then the flap valve body, the rotating shaft, the connecting bolts, the locking gaskets, the fastening nuts, the nuts and the like are installed at the correct positions according to the assembly requirements. Then the relative position of waist shape hole on adjusting connecting bolt and the connecting seat adjusts the axial displacement between beat door body and the pivot simultaneously, makes the state that the beat door body is in the closure (toper sealed face is laminated mutually) with the door frame, screws up the double nut on two connecting bolts this moment to with two holding screws screw in the screw hole that corresponds on the engaging lug. After the operation is finished, the relative position of the flap valve body and the door frame is fixed, and the installation and debugging work is finished completely. When the device plays a role in preventing backflow, the flap valve body is always in a closed state under the action of water pressure; when the water outlet pipe needs to drain, the flap valve body can be opened by a small amount of water due to the light weight of the flap valve body, so that the normal overflow of the pipeline is ensured.
In conclusion, the utility model has the advantages of simple structure, light dead weight and good sealing effect, and is particularly characterized by the following points:
(1) The conical sealing surface is arranged between the flap valve body and the door frame, and compared with the plane sealing surface, the conical sealing surface is in surface contact, and obviously, the more pressed and more tightly the conical surface is under the action of water pressure, the larger the water pressure is, and the better the sealing effect is. And the conical surface is adopted for sealing, a sealing gasket is not needed, and the leakage problem is avoided in the later stage as long as the sealing gasket is installed and adjusted in place at one time.
(2) Besides normal free rotation, the three-degree-of-freedom position adjusting system is additionally arranged between the flap valve body and the door frame: the connecting bolt is matched with the waist-shaped hole on the connecting seat, so that the up-down and front-back adjustment between the flap valve body and the door frame can be realized; the axial displacement between the flap valve body and the rotating shaft is adjusted by adjusting the axial position of the connecting lug on the rotating shaft, so that the left-right adjustment between the flap valve body and the door frame can be realized. The position adjustment structure with three degrees of freedom can ensure perfect fit between the flap valve body and the door frame, and can meet the requirement of high position degree requirement between the flap valve body and the door frame.
(3) The flap valve body of the sheet rib structure is light in weight and not easy to deform, so that raw materials are greatly saved, and meanwhile, the normal overflow of a water outlet pipeline is ensured.
In the foregoing description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed above.
Claims (9)
1. Novel flap valve structure, its characterized in that: the water outlet pipe comprises a flap valve body and a door frame arranged at the tail end outlet of the water outlet pipe, wherein a connecting seat is arranged on the top wall of the water outlet pipe, and the flap valve body is detachably connected with the connecting seat; the connecting seat is provided with a height adjusting structure, and the top of the flap valve body is matched with the height adjusting structure for adjusting the mounting height of the flap valve body through a turnover assembly; the sealing surface of the flap valve body matched with the door frame is a conical surface inclined inwards; the door frame is obliquely arranged at the tail end of the water outlet pipe, the tail end of the water outlet pipe is an inclined plane which is obliquely upwards opened, and the cross sections of the tapered hole of the door frame and the edge of the flap valve body are elliptical.
2. The novel flap valve structure of claim 1, wherein: the turnover assembly comprises a connecting frame, a rotating shaft and connecting bolts, wherein the connecting frame is connected with the rotating shaft, the number of the connecting bolts is two, one ends of the connecting bolts are provided with connecting holes, two ends of the rotating shaft are respectively in running fit with the connecting holes of the two connecting bolts, and the tail ends of screw rods of the connecting bolts penetrate through the connecting seat to be matched with the fastening nuts.
3. The novel flap valve structure of claim 2, wherein: the connecting seat comprises an arc-shaped connecting plate and an L-shaped support, the bottom of the support is welded and fixed on the connecting plate, and the connecting plate is attached to and fixed on the outer wall of the water outlet pipe; the height adjusting structure is two kidney-shaped holes arranged on the mounting plate at the top of the support, the length direction of the kidney-shaped holes is arranged along the vertical direction, and the connecting bolts horizontally penetrate through the kidney-shaped holes; the fastening nuts are two and are respectively arranged on two sides of the vertical plate, and locking gaskets are arranged between the fastening nuts and the vertical plate.
4. The novel flap valve structure of claim 2, wherein: the connecting frame comprises two parallel connecting lugs, and the two connecting lugs are connected through a connecting rod; the upper end of the connecting lug is provided with a polygonal hole, and the two ends of the rotating shaft are provided with polygonal column sections matched with the square holes.
5. The novel flap valve structure of claim 4, wherein: the two ends of the rotating shaft are matched with the nuts, the polygonal column section is arranged on the inner side of the threaded section at the tail end of the rotating shaft, and a cylindrical section in running fit with the connecting hole at the tail end of the connecting bolt is arranged between the polygonal column section and the threaded section; the length of the cylindrical section is greater than the length of the connecting hole.
6. The novel flap valve structure of claim 4, wherein: the flap valve body comprises a bottom plate, a conical eave and reinforcing ribs on the outer surface of the conical eave, wherein the bottom of the conical eave is fixed on the peripheral edge of the bottom plate, and the reinforcing ribs are fixed on the outer surface of the bottom plate and are fixedly connected with the conical surface on the inner side of the conical eave; the connecting lugs are fixed on the inner conical surface of the conical eave.
7. The novel flap valve structure of claim 6, wherein: the reinforcing rib comprises four ribs and an annular supporting sleeve, the supporting sleeve is fixed in the middle of the outer surface of the bottom plate, the four ribs are radially and uniformly distributed around the supporting sleeve, one end of each rib is fixedly connected with the supporting sleeve, and the other end of each rib is fixedly connected with the inner conical surface of the conical eave.
8. The novel flap valve structure according to any one of claims 1 to 7, wherein: the included angle between the plane where the door frame is positioned and the vertical plane is beta, and beta is more than or equal to 15 degrees and less than or equal to 25 degrees.
9. The novel flap valve structure of claim 8, wherein: the included angle between the conical surface of the door frame matched with the flap valve body and the corresponding outer wall surface is alpha, and alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223394884.2U CN219062538U (en) | 2022-12-19 | 2022-12-19 | Novel flap valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223394884.2U CN219062538U (en) | 2022-12-19 | 2022-12-19 | Novel flap valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219062538U true CN219062538U (en) | 2023-05-23 |
Family
ID=86363324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223394884.2U Active CN219062538U (en) | 2022-12-19 | 2022-12-19 | Novel flap valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219062538U (en) |
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2022
- 2022-12-19 CN CN202223394884.2U patent/CN219062538U/en active Active
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