Check valve device with enhanced check effect
By incorporating a double baffle and connecting rod design in the check valve, double sealing of the liquid is achieved, solving the problem of poor backflow prevention in check valves during liquid backflow, enhancing backflow prevention capability, and preventing odor diffusion and impurity entry in wastewater applications.
Patent Information
- Application Number
- CN202520484615.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In existing check valves, when liquid flows back rapidly, some liquid still flows back even as the liquid pushes the opening and closing element to close, resulting in poor backflow prevention.
Design a check valve device with enhanced backflow prevention effect. By setting two baffles and connecting rods, the baffles cooperate with the retaining ring, and the synchronous reverse rotation of the connecting rod achieves double sealing, enhancing the liquid backflow prevention capability. A buffer zone is set in the device to block backflow liquid.
It effectively prevents liquid backflow, improves the check valve's check valve capability, and especially prevents odor diffusion in sewage. The filter screen also prevents impurities from entering the valve body, keeping the valve body clean.
Smart Images
Figure CN223725529U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of reinforcing check valve, especially relates to a check valve device with reinforced check effect. BACKGROUND
[0002] Check valve, also called check valve, one-way valve, is used in fluid pipeline system, and is automatically opened and closed by fluid flow, and can prevent fluid backflow, and is realized by weight and medium pressure of opening and closing part (valve clack) to realize automatic opening and closing, thereby preventing medium backflow, when medium flows into from the inlet end and flows out from the outlet end, the valve clack is opened under the action of medium pressure, when the inlet pressure is less than the sum of the weight of the valve clack and its flow resistance, the valve is closed, and backflow of medium is prevented.
[0003] The existing check valve is mostly provided with only one opening and closing part, and the effect of stopping liquid material is limited, when liquid backflows quickly, part of backflow liquid still passes the opening and closing part while the opening and closing part is closed by liquid, and liquid backflow is caused. CONTENT OF UTILITY MODEL
[0004] In order to solve the above problems, the utility model provides a check valve device with reinforced check effect to more exactly solve the above-mentioned problems.
[0005] The utility model is realized through the following technical schemes:
[0006] The utility model provides a check valve device with reinforced check effect, including valve body, both sides of the valve body are fixedly connected with flange plate, the inside of the valve body is fixedly connected with two installation rings, two installation rings are equipped with check assembly, and connecting rod is arranged between two check assemblies.
[0007] In an example, the check assembly includes a baffle ring, the baffle ring is located on the inner side of the installation ring, the baffle ring is fixedly connected with the installation ring, two baffle rings are fixedly connected with two installation blocks on one side, two installation blocks are rotatably connected with rotating blocks, and the rotating blocks are fixedly connected with baffle plates on one side.
[0008] In an example, two baffle plates are installed with hinged seats on the opposite side, the position of the hinged seat is away from the installation block, the connecting rod is located between two hinged seats, and the connecting rod is hinged with two hinged seats.
[0009] In an example, two baffle plates are fixedly connected with rubber pads on the side towards the baffle ring, the baffle plate is circular, and the radius of the baffle plate is greater than the inner diameter of the baffle ring.
[0010] In an example, two baffle plates are located on the same side of the baffle ring.
[0011] In one example, the lower surface of each of the two mounting rings is fixedly connected to a support plate, and the support plate is used to support the baffle.
[0012] In one example, the two sides of the valve body are fixedly connected to a fixed ring, the fixed ring is provided with a plurality of threaded holes, the side of the fixed ring close to the flange is provided with a filter screen, the outer side of the filter screen is fixedly connected to a support ring, the support ring is provided with a plurality of through holes, the number and position of the through holes are opposite to those of the threaded holes, and a fastening screw is arranged in the threaded hole and the through hole.
[0013] The check valve device with the reinforced check effect can bring the following beneficial effects:
[0014] Firstly, two baffles are arranged, when liquid flows reversely, the baffle on the second mounting ring at the lower side is pushed to make the baffle adhere to the baffle ring to block the liquid flowing reversely, and the first baffle ring serves as a backup to prevent the liquid flowing reversely at too high a speed to cause the second baffle ring to fail to block the liquid flowing reversely in time, so that the first baffle ring blocks again to ensure the check effect of the valve body on the liquid and improve the check capacity of the valve body.
[0015] Secondly, the connecting rod is arranged, when liquid flows reversely, the baffle on the second mounting ring is pushed first to make the baffle reverse and adhere to the baffle ring to prevent the liquid from flowing reversely, the baffle on the second mounting ring pushes the baffle ring on the first mounting ring at the upper side to reverse synchronously through the connecting rod to block the first baffle ring, and the baffle on the first mounting ring blocks together with the baffle on the second mounting ring to block the liquid flowing reversely in the buffer area. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.
[0017] In the drawings:
[0018] Figure 1 The figure is a structural schematic view of the present application.
[0019] Figure 2 The figure is a structural schematic view of the check assembly of the present application.
[0020] Figure 3 The figure is a sectional structural schematic view of the present application.
[0021] Figure 4 The figure is a structural schematic view of the support plate of the present application.
[0022] Figure 5 The figure is a structural schematic view of the filter screen of the present application.
[0023] In the figure: 1, valve body; 2, flange plate; 3, mounting ring; 4, check assembly; 41, blocking ring; 42, mounting block; 43, rotating block; 44, baffle; 5, connecting rod; 6, hinged seat; 7, support plate; 8, fixed ring; 9, filter screen; 10, support ring. DETAILED DESCRIPTION
[0024] In order to more clearly illustrate the overall concept of the utility model, the following will be described in detail in an exemplary manner combined with the drawings of the specification.
[0025] As Figures 1-5 shown, the embodiment of the utility model provides a check valve device with reinforced check effect, including valve body 1, both sides of valve body 1 are fixedly connected flange plate 2, the inside of valve body 1 is fixedly connected two mounting rings 3, two mounting rings 3 are equipped with check assembly 4, two check assemblies 4 are provided with connecting rod 5 between, check assembly 4 includes blocking ring 41, blocking ring 41 is located the inside of mounting ring 3, blocking ring 41 is fixedly connected with mounting ring 3, one side of two blocking rings 41 is fixedly connected two mounting blocks 42, two mounting blocks 42 are rotatably connected rotating block 43 between, one side of rotating block 43 is fixedly connected baffle 44, two check assemblies 4 are vertically distributed, the baffle 44 on two blocking rings 41 can only be downwardly rotated, the device is applicable to liquid delivery, when using, liquid enters through one side of valve body 1, first pushes open the baffle 44 on first blocking ring 41, makes first baffle 44 downwardly rotate, makes liquid pass through first mounting ring 3 smoothly, then liquid continues to drop, pushes open the baffle 44 on second blocking ring 41 below, the baffle 44 on second blocking ring 41 also downwardly rotates, liquid passes through second mounting ring 3 smoothly, when liquid countercurrent, pushes the baffle 44 on second mounting ring 3 below, makes baffle 44 and blocking ring 41 adhere, blocks countercurrent liquid, and first blocking ring 41 acts as a heavy safeguard, avoids that the flow rate of countercurrent liquid is too big, causes second blocking ring 41 not to block countercurrent water flow in time, then is blocked again by first blocking ring 41, guarantees the check effect of valve body 1 to liquid, improves the check ability of valve body 1.
[0026] As Figure 2 , Figure 3 and Figure 4As shown, the opposite side of the two baffles 44 is provided with a hinge seat 6, the hinge seat 6 is away from the mounting block 42, the connecting rod 5 is located between the two hinge seats 6, the connecting rod 5 is hinged with the two hinge seats 6, the side of the two baffles 44 towards the blocking ring 41 is fixedly connected with a rubber pad, the baffle 44 is circular, the radius of the baffle 44 is greater than the inner diameter of the blocking ring 41, the two baffles 44 are located on the same side of the blocking ring 41, when the water flow is reversed, the baffle 44 on the second mounting ring 3 is pushed first, the baffle 44 is reversed and attached to the blocking ring 41 to prevent the water flow from reversing, the baffle 44 on the second mounting ring 3 pushes the blocking ring 41 on the upper first mounting ring 3 through the connecting rod 5 to reverse synchronously, and the first blocking ring 41 is blocked, and the area between the first mounting ring 3 and the second mounting ring 3 is a buffer area, when the flow rate of the backflow is large, part of the backflow will pass through the second mounting ring 3 and enter the buffer area, but the baffle 44 on the first mounting ring 3 has been blocked with the baffle 44 on the second mounting ring 3 to block the backflow in the buffer area, and at the same time, when the device is used in sewage, part of the sewage enters the buffer area, the first mounting ring 3 is blocked, the smell of the sewage in the buffer area is blocked, and the smell of the sewage in the buffer area is prevented from spreading upward.
[0027] As Figure 3 With Figure 4 As shown, the lower surface of the two mounting rings 3 is fixedly connected with a support plate 7, the support plate 7 is used for supporting the baffle 44, and the support plate 7 is used for limiting the downward rotation angle of the baffle 44, so that the baffle 44 cannot be reversely turned back to the blocking ring 41 when the liquid backflows, and the backflow liquid cannot be blocked.
[0028] As Figure 5 As shown, the two sides of the valve body 1 are fixedly connected with a fixed ring 8, the fixed ring 8 is provided with a plurality of threaded holes, the side of the fixed ring 8 close to the flange plate 2 is provided with a filter screen 9, the outer side of the filter screen 9 is fixedly connected with a support ring 10, the support ring 10 is provided with a plurality of through holes, the number and position of the through holes are opposite to the threaded holes, and the threaded holes and the through holes are provided with fastening screws, the two sides of the valve body 1 are provided with the filter screen 9 through the fastening screws, the liquid passing through is filtered, only the liquid is allowed to pass through, and when the water flows or backflows, the algae and other impurities on the inner wall of the pipeline enter the valve body 1, which is difficult to clean.
[0029] Working principle: when using, liquid enters through one side of the valve body 1, first pushes open the baffle 44 on the first blocking ring 41, makes the first baffle 44 rotate downward, makes the liquid pass through the first mounting ring 3, passes through the connecting rod 5, pushes the baffle 44 on the second blocking ring 41, the baffle 44 on the second blocking ring 41 also rotates downward, the liquid passes through the second mounting ring 3 smoothly, when the liquid flows reversely, pushes the baffle 44 on the second mounting ring 3 below, the baffle 44 on the second mounting ring 3 pushes the blocking ring 41 on the first mounting ring 3 above through the connecting rod 5 and reverses synchronously, blocks the first blocking ring 41.
[0030] Each of the embodiments in the specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the difference from other embodiments. Especially, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.
[0031] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims
1. A check valve device with enhanced backflow prevention effect, characterized in that, The valve body (1) is fixedly connected to flanges (2) on both sides. Two mounting rings (3) are fixedly connected inside the valve body (1). Check rings (4) are provided on both mounting rings (3). A connecting rod (5) is provided between the two check rings (4).
2. The check valve device with enhanced backflow prevention effect according to claim 1, characterized in that, The check ring (4) includes a retaining ring (41) located inside the mounting ring (3). The retaining ring (41) is fixedly connected to the mounting ring (3). Two mounting blocks (42) are fixedly connected to one side of each of the two retaining rings (41). A rotating block (43) is rotatably connected between the two mounting blocks (42). A baffle (44) is fixedly connected to one side of each rotating block (43).
3. A check valve device with enhanced backflow prevention effect according to claim 2, characterized in that, Hinges (6) are installed on opposite sides of the two baffles (44). The hinges (6) are located away from the mounting block (42). The connecting rod (5) is located between the two hinges (6) and is hinged to the two hinges (6).
4. A check valve device with enhanced backflow prevention effect according to claim 2, characterized in that, Both baffles (44) are fixedly connected to rubber pads on the side facing the retaining ring (41). The baffles (44) are circular and the radius of the baffles (44) is greater than the inner diameter of the retaining ring (41).
5. A check valve device with enhanced backflow prevention effect according to claim 2, characterized in that, Both baffles (44) are located on the same side of the retaining ring (41).
6. A check valve device with enhanced backflow prevention effect according to claim 2, characterized in that, The lower surfaces of the two mounting rings (3) are fixedly connected to support plates (7), which are used to support baffles (44).
7. A check valve device with enhanced backflow prevention effect according to claim 1, characterized in that, Both sides of the valve body (1) are fixedly connected to a fixing ring (8). The fixing ring (8) has multiple threaded holes. The side of the fixing ring (8) near the flange (2) is provided with a filter screen (9). The outer side of the filter screen (9) is fixedly connected to a support ring (10). The support ring (10) has multiple through holes. The number and position of the through holes are opposite to the threaded holes. Fastening screws are installed in the threaded holes and through holes.