Traction type check valve flap valve structure
By designing the pull-type check valve structure, the automatic opening and closing of the door is achieved by using a hand-crank winch and wire rope, and the watertight effect is achieved through the rubber water stop strip compression seal, which solves the watertightness of the existing check valve door Poor performance and the need for a fixed power supply achieve low-cost, automated drainage and check-return functions.
Patent Information
- Application Number
- CN202323485435.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2033-12-20
AI Technical Summary
The existing check valves have poor watertight performance when closed and then movable when used alone, and require a fixed power supply when used with a water lift pump and are expensive.
A pull-type check valve tap structure is designed. By installing a cover plate, pulley set, winch and wire rope at the exit of the embedded pipeline, the wire rope is tensioned or loosened by hand-cranking winch, so that the tap door can be automatically opened and closed. , and the water-tight effect is achieved through the rubber water stop strip compressed and water sealed.
It realizes that manually operate the check valve and tap door to achieve watertight effect without a fixed power supply, and automatically open the drainage when the head difference reaches a certain value, which can both drain and check, reducing project costs.
Smart Images
Figure CN222500155U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a flapping door technology, in particular to a pulling type non-return valve flapping door structure. Background Art
[0002] At present, longitudinal and transverse drainage ditches are set up on the channel slope, and pipes are pre-buried to discharge the high groundwater outside the channel into the channel through the drainage ditches and pipes. When the groundwater level outside the channel is lower than the water level inside the channel, it is necessary to prevent the water in the channel from flowing out through the pipes. According to the situation of the high groundwater channel section, such drainage facilities need to be set up every few dozen meters along the channel.
[0003] At present, there are two main usage situations of check valve flap gates in the market: check valve flap gates are used alone and check valve flap gates are used in conjunction with a water pump. Check valve flap gates used alone can open and close automatically, but the watertight performance under dynamic water conditions after closing is poor, and water leakage often occurs. When the check valve flap gate is used in conjunction with a water pump, the flap gate is generally installed on the outlet end face of the pump. When the flap gate is closed, the gas in the pipeline is discharged by the pump station in reverse, so that the external air pressure is greater than the air pressure in the pipe, thereby generating static pressure at the flap gate cover plate, compressing the water seal to achieve a watertight effect. However, it requires a fixed power supply and is expensive, but there is no fixed power supply along the canal and many drainage facilities are required. Therefore, the project requires a manual check valve flap gate to achieve the functions of both drainage and check. Utility Model Content
[0004] The utility model aims to provide a pull-type check valve flap door structure, which is used to solve the problem that the existing check valve flap door has poor watertight performance under dynamic water conditions when used alone but closed, and the check valve flap door needs a fixed power supply and high cost when used in conjunction with a water pump.
[0005] In order to solve the above problems, the utility model provides a pull-type check valve flap gate structure, including a pre-buried pipe installed in the concrete wall of the channel and an embedded part installed on the top of the channel, the water outlet of the pre-buried pipe is provided with a flap gate, the flap gate includes a cover plate hinged at the top of the base through a distribution shaft, two first pulley groups are fixedly installed on the upper end of the concrete wall at the outlet of the pre-buried pipe, and two second pulley groups are fixedly installed on the lower end of the concrete wall at the outlet of the pre-buried pipe, a lifting ring is fixedly connected to the bottom of the cover plate, a bracket is fixedly connected to the upper side of the embedded part, and first capstans are fixedly installed on both sides of the top of the bracket, the two first capstans are connected by an intermediate shaft so that the two first capstans rotate synchronously, and the first steel wire rope on the first capstan is overlapped with the corresponding first pulley group and is fixedly connected to the lifting ring after passing around the corresponding second pulley group.
[0006] The pull-type check valve flap door structure provided by the utility model also has the following technical features:
[0007] Furthermore, a rubber water stop strip that can contact the base is provided on the inner side of the cover plate.
[0008] Furthermore, the bracket includes a crossbeam fixedly connected to the top of the base column and a pillar fixedly connected to the middle of the crossbeam, the two ends of the crossbeam are respectively fixedly mounted to the two first winches, the top of the pillar is fixedly mounted with a second winch, the bottom of the cover plate is fixedly mounted with a third pulley group, and the second steel wire rope on the second winch passes around the third pulley group and is fixedly connected to the lifting ring.
[0009] Furthermore, the number of the lifting rings is three, the two first steel wire ropes are fixedly connected to the lifting rings on both sides respectively, and the second steel wire rope is fixedly connected to the middle lifting ring.
[0010] Furthermore, a wire rope dynamometer is installed on the first steel wire rope.
[0011] Furthermore, the embedded parts include a steel plate and a plurality of anchor bars, the anchor bars are provided with hooks, and the steel plate is fixedly connected to the base column.
[0012] The utility model has the following beneficial effects: by hand-cranking the first winch, the two first winches can drive the first steel wire rope to be tensioned, so that the cover plate and the base can be closely fitted, thereby achieving the effect of closing the flap door, and by arranging the rubber water stop strip between the cover plate and the base, the water seal can be compressed to achieve a watertight effect, and there is no need to use a fixed power supply, the cost is low, and by rotating the hand-cranked first winch, the two first winches can drive the first steel wire rope to relax, so that when the water head difference between the outside and the inside of the channel reaches twenty centimeters, the flap door will automatically open to discharge the groundwater into the channel, thereby achieving the effect of both drainage and backflow prevention. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a left side view of an embodiment of the utility model;
[0014] Figure 2 It is a left side view of the flap door and the pulley in the embodiment of the utility model;
[0015] Figure 3 This is a front view of a flap door and a pulley in an embodiment of the utility model;
[0016] Figure 4 This is a front view of the bracket and the winch in the embodiment of the utility model;
[0017] Figure 5 A top view of the bracket and the winch in the embodiment of the utility model;
[0018] Figure 6 This is a front view of the bracket in the embodiment of the utility model;
[0019] Figure 7 It is a left side view of the bracket of the embodiment of the utility model;
[0020] Figure 8 A top view of a bracket according to an embodiment of the utility model;
[0021] Fig. 9 It is a front view of the embedded part in the embodiment of the utility model. DETAILED DESCRIPTION
[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.
[0023] like Figures 1 to 9 In the embodiment of the pull-type check valve flap door structure of the utility model shown, the pull-type check valve flap door structure includes a pre-buried pipe 1 installed in the concrete wall of the channel and an embedded part 2 installed on the top of the channel, the embedded part 2 is fixedly embedded in the channel, and a flap door 3 is provided at the outlet of the pre-buried pipe 1, and the flap door 3 includes a cover plate 302 hinged at the top of the base 301 through a distribution shaft, two first pulley blocks 4 are fixedly installed on the upper end of the concrete wall at the outlet of the pre-buried pipe 1, and two second pulley blocks 5 are fixedly installed on the lower end of the concrete wall at the outlet of the pre-buried pipe 1, a lifting ring 6 is fixedly connected to the bottom of the cover plate 302, and a bracket 7 is fixedly connected to the upper side of the embedded part 2, and first capstans 8 are fixedly installed on both sides of the top of the bracket 7, respectively, and the two first capstans 8 are connected by an intermediate shaft 9 so that the two first capstans 8 rotate synchronously. The first steel wire rope 10 on the first winch 8 is overlapped with the corresponding first pulley group 4 and passed around the corresponding second pulley group 5 and then fixedly connected with the lifting ring 6. By manually cranking the first winch 8, the two first winches 8 can drive the first steel wire rope 10 to be tightened, so that the cover plate 302 and the base 301 can be tightly fitted, thereby achieving the effect of closing the flap door 3, and by arranging the rubber water stop strip 11 between the cover plate 302 and the base 301, it can play a role in compressing the water seal to achieve a watertight effect, and does not require the use of a fixed power supply, and has a low cost. By rotating the hand-cranked first winch 8, the two first winches 8 can drive the first steel wire rope 10 to relax, so that when the water head difference between the outside and inside of the channel reaches twenty centimeters, the flap door 3 will automatically open to discharge the groundwater into the channel, thereby achieving the effect of both drainage and stopping.
[0024] In one embodiment of the present application, preferably, a rubber water stop strip 11 that can contact the base 301 is provided on the inner side of the cover plate 302. When the flap door 3 is opened or closed, the cover plate 302 of the flap door 3 rotates around the pin shaft. When the flap door 3 is closed, the rubber water stop strip 11 is pre-stressed and deformed to achieve a water sealing effect. The cover plate 202 is made of lightweight fiberglass material, which can ensure that it can be opened with a 20cm head difference. The base 301 is made of carbon steel Q235, and the water seal adopts a rubber water seal with a Shore hardness of not more than 50.
[0025] In one embodiment of the present application, preferably, the bracket 7 includes a crossbeam 702 fixedly connected to the top of the base column 701 and a pillar 703 fixedly connected to the middle of the crossbeam 702, the two ends of the crossbeam 702 are respectively fixedly installed with two first capstans 8, the top of the pillar 703 is fixedly installed with a second capstan 12, the bottom of the cover plate 302 is fixedly installed with a third pulley group 13, the second steel wire rope 14 on the second capstan 12 passes around the third pulley group 13 and is fixedly connected to the lifting ring 6, the pulley group consists of a support frame, a pin shaft and a pulley, the winch is a manual winch with a self-locking function at any position, and the corresponding steel wire rope is tightened or relaxed by shaking the winch in forward and reverse directions to close or open the flap door 3, and the first capstan 8 and the second capstan 12 are not at the same height to prevent interference with each other when operating the winch.
[0026] In one embodiment of the present application, preferably, the number of the lifting rings 6 is three, the two first steel wire ropes 10 are fixedly connected to the lifting rings 6 on both sides respectively, and the second steel wire rope 14 is fixedly connected to the middle lifting ring 6 .
[0027] In one embodiment of the present application, preferably, a wire rope dynamometer 15 is installed on the first steel wire rope 10 , and the tensioning force of the first steel wire rope 10 can be detected by the wire rope dynamometer 15 .
[0028] In one embodiment of the present application, preferably, the embedded part 2 includes a steel plate 201 and a plurality of anchor bars 202, the anchor bars 202 are provided with hooks, the steel plate 201 is fixedly connected to the bottom column 701, and the provision of a plurality of anchor bars 202 facilitates the embedded part 2 to be firmly embedded underground in the channel.
[0029] When the utility model is in use, when the water level in the channel is higher than the groundwater level outside the channel, it is necessary to close the flap door 3, operate the hand-cranked second capstan 12 to relax the second steel wire rope 14, operate the hand-cranked first capstan 8, tighten the first steel wire rope 10, and use the steel wire rope dynamometer 15 for detection. When the tension of the first steel wire rope 10 is close to or equal to the calculated value, stop the operation and lock the first capstan 8 and the second capstan 12. At this time, the rubber water stop strip 11 has reached or is close to the required preload, and the flap door 3 achieves the designed water-stopping effect without water leakage or seepage. When the groundwater level outside the channel is higher than the groundwater level outside the channel, the flap door 3 can be closed. When the water level in the channel reaches a certain level, it is necessary to open the flap gate 3, operate the hand-cranked first winch 8, loosen the first steel wire rope to the marked position and lock the first winch 8. Because the cover 302 is made of lightweight material, when the water head difference between the outside and inside of the channel reaches 20 cm, the flap gate 3 will automatically open to discharge the groundwater into the channel. According to the size of the water head difference, the opening angle of the flap gate cover 302 will automatically change, thereby ensuring the safety of the main canal project and its water supply. After the components of the device are manufactured, they must be treated with anti-corrosion to extend the service life of each component; the anti-corrosion materials are all environmentally friendly materials to ensure water quality.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A pull-type check valve flap door structure, comprising a pre-buried pipe (1) installed in a channel concrete wall and a pre-buried part (2) installed on the top of the channel, a flap door (3) is provided at the outlet of the pre-buried pipe (1), characterized in that: The flap door (3) comprises a cover plate (302) hinged to the top of the base (301) via a distribution shaft, two first pulley blocks (4) are fixedly installed on the upper end of the concrete wall at the outlet of the embedded pipeline (1), two second pulley blocks (5) are fixedly installed on the lower end of the concrete wall at the outlet of the embedded pipeline (1), a lifting ring (6) is fixedly connected to the bottom of the cover plate (302), a bracket (7) is fixedly connected to the upper side of the embedded part (2), and first winches (8) are fixedly installed on both sides of the top of the bracket (7), the two first winches (8) are connected via an intermediate shaft (9) so that the two first winches (8) rotate synchronously, and the first steel wire rope (10) on the first winch (8) overlaps the corresponding first pulley block (4) and passes around the corresponding second pulley block (5) and is fixedly connected to the lifting ring (6).
2. The pull-type check valve flap door structure according to claim 1 is characterized in that: The inner side of the cover plate (302) is provided with a rubber water stop strip (11) that can contact the base (301).
3. The pull-type check valve flap door structure according to claim 1 is characterized in that: The support (7) comprises a crossbeam (702) fixedly connected to the top of the base column (701) and a support column (703) fixedly connected to the middle of the crossbeam (702); two ends of the crossbeam (702) are respectively fixedly mounted to two first capstans (8); a second capstan (12) is fixedly mounted on the top of the support column (703); a third pulley block (13) is fixedly mounted on the bottom of the cover plate (302); and a second steel wire rope (14) on the second capstan (12) passes around the third pulley block (13) and is fixedly connected to the lifting ring (6).
4. The pull-type check valve flap door structure according to claim 3 is characterized in that: The number of the lifting rings (6) is three, the two first steel wire ropes (10) are respectively fixedly connected to the lifting rings (6) on both sides, and the second steel wire rope (14) is fixedly connected to the middle lifting ring (6).
5. The pull-type check valve flap door structure according to claim 1, characterized in that: A wire rope dynamometer (15) is installed on the first steel wire rope (10).
6. The pull-type check valve flap door structure according to claim 3, characterized in that: The embedded part (2) comprises a steel plate (201) and a plurality of anchor bars (202), wherein the anchor bars (202) are provided with hooks, and the steel plate (201) is fixedly connected to the base column (701).