Flow-limiting one-way valve
The flow limiting one-way valve addresses the issue of unadjustable flow rates by incorporating a rotatable mechanism to control flow rates directly, simplifying operations and reducing costs.
Patent Information
- Application Number
- CN202421110626.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Existing one-way valves do not allow for adjustable flow rate control and often require additional flow limiting accessories, increasing operational complexity and cost.
A flow limiting one-way valve design featuring a rotatable knob block, transmission stud, and sliding blocking mechanism to adjust and limit flow rate, eliminating the need for separate accessories in the pipeline.
Enables adjustable flow rate control without additional accessories, enhancing convenience and reducing operational costs.
Smart Images
Figure CN222209107U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of one-way valves, in particular to a flow-limiting one-way valve. Background Art
[0002] A one-way valve, also known as a check valve or a non-return valve, is a control valve in which the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. The one-way valve is used in hydraulic systems to prevent the oil flow from flowing in the opposite direction, or in pneumatic systems to prevent the compressed air from flowing in the opposite direction. There are two types of one-way valves: straight-through type and right-angle type. In the prior art, an ordinary one-way valve allows the fluid to enter from the inlet, overcomes the spring force to open the one-way valve port, and the fluid flows from the inlet to the outlet. When there is no fluid at the inlet, the valve port is in a closed state under the action of the spring force and the outlet fluid pressure to prevent the fluid from flowing in the opposite direction. However, since the water flow can only be conducted in a one-way direction and the flow rate of the water flow cannot be adjusted and restricted, it is usually necessary to add a flow limiting accessory in the water delivery pipeline, which causes inconvenience during use and increases the cost of water delivery operations. Therefore, we propose a flow limiting one-way valve to solve the above problems. Utility Model Content
[0003] The purpose of the utility model is to provide a flow limiting one-way valve to solve the problems raised in the above background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A flow limiting one-way valve comprises a one-way valve body, wherein the upper port of the one-way valve body is fixedly provided with a valve cover, the interior of the one-way valve body is fixedly provided with a front seat, the front seat is rotatably connected to a valve plate, the interior of the one-way valve body is fixedly provided with a rear seat at the rear side of the front seat, a spring is provided between the valve plate and the spring, a side seat is fixedly provided on the side of the valve plate, one end of the spring is movably hinged to the side seat through a connecting block a, and the other end of the spring is movably hinged to the rear seat through a connecting block b, the upper port of the one-way valve body is slidably connected with a blocking slide, the valve cover is threadedly connected with a transmission stud, the bottom end of the transmission stud is rotatably connected to the blocking slide via a rotating shaft, the upper end of the blocking slide is symmetrically fixedly connected with two guide pillars, the guide pillars slidably pass through the valve cover, the bottom of the blocking slide is fixedly connected with a transmission pressure block, and the bottom of the transmission pressure block slidably contacts with the valve plate.
[0006] Preferably, a water inlet flange is fixedly provided at the water inlet port of the one-way valve body, and a water outlet flange is fixedly provided at the water outlet port of the one-way valve body.
[0007] Preferably, a sealing groove is provided on the surface of the upper port of the one-way valve body, and an annular sealing seat is fixedly provided on the bottom of the valve cover, and the annular sealing seat is matched with the sealing groove.
[0008] Preferably, a reinforcement block is fixedly connected between the blocking slide and the transmission pressure block, and the reinforcement blocks are symmetrically distributed on both sides.
[0009] Preferably, a knob block is fixedly connected to the upper end of the transmission stud, and the cross-sectional shape of the knob block is a regular hexagon.
[0010] Preferably, the upper end of the guide column is fixedly connected to a limit stopper, and the cross-sectional shape of the limit stopper is rectangular.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model discloses, according to the use requirement, if it is necessary to adjust and limit the flow rate of water flow, use the knob block to rotate the transmission stud, drive the blocking slide seat to slide downward along the upper port of the one-way valve body, and the bottom of the transmission pressure block slides and contacts with the valve plate. The transmission pressure block can be used to drive the valve plate to flip in the closing direction, so that the flow rate of water flow can be adjusted and limited. There is no need to add a flow limiting accessory in the water flow conveying pipeline, which makes the one-way valve more convenient to use for water flow conveying, and is conducive to reducing the cost of water flow conveying operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic cross-sectional view of a flow-limiting one-way valve of the utility model;
[0014] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;
[0015] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B.
[0016] In the figure: 1. one-way valve body; 101. water inlet flange; 102. water outlet flange; 103. sealing groove; 2. valve cover; 201. annular sealing seat; 3. front seat; 4. valve plate; 401. side seat; 5. rear seat; 6. spring; 601. connecting block a; 602. connecting block b; 7. blocking slide; 701. transmission pressure block; 702. reinforcement block; 8. transmission stud; 801. rotating shaft; 802. knob block; 9. guide column; 901. limit stop block. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-Figure 3 As shown, a technical solution provided by the utility model:
[0019] A flow limiting one-way valve comprises a one-way valve body 1, a valve cover 2 is fixedly arranged at the upper port of the one-way valve body 1, a front seat 3 is fixedly arranged inside the one-way valve body 1, a valve plate 4 is rotatably connected to the front seat 3, a rear seat 5 is fixedly arranged inside the one-way valve body 1 at the rear side of the front seat 3, a spring 6 is arranged between the valve plate 4 and the spring 6, a side seat 401 is fixedly arranged on the side of the valve plate 4, one end of the spring 6 is movably hinged to the side seat 401 through a connecting block a601, and the other end of the spring 6 is connected to the side seat 401 through a connecting block a601. The connecting block b602 is movably hinged to the rear seat 5, the upper port of the one-way valve body 1 is slidably connected to the blocking slide 7, the valve cover 2 is threadedly connected with a transmission stud 8, the bottom end of the transmission stud 8 is rotatably connected to the blocking slide 7 through a rotating shaft 801, the upper end of the blocking slide 7 is symmetrically fixedly connected with two guide pillars 9, the guide pillars 9 slide through the valve cover 2, the bottom of the blocking slide 7 is fixedly connected with a transmission pressure block 701, and the bottom of the transmission pressure block 701 slides and contacts with the valve plate 4.
[0020] As a preferred implementation in this embodiment, Figure 1 As shown, the water inlet port of the one-way valve body 1 is fixedly provided with a water inlet flange 101, and the water outlet port of the one-way valve body 1 is fixedly provided with a water outlet flange 102, so that the one-way valve body 1 can be installed in the water conveying pipeline.
[0021] As a preferred implementation in this embodiment, Figure 1 and Figure 2 As shown, a sealing groove 103 is provided on the upper port surface of the one-way valve body 1, and an annular sealing seat 201 is fixedly provided on the bottom of the valve cover 2. The annular sealing seat 201 is adapted to the sealing groove 103, so that the annular sealing seat 201 can be embedded in the sealing groove 103, thereby achieving the purpose of improving the sealing between the upper port of the one-way valve body 1 and the valve cover 2.
[0022] As a preferred implementation in this embodiment, Figure 3 As shown, a reinforcement block 702 is fixedly connected between the blocking slide 7 and the transmission pressure block 701 , and the reinforcement blocks 702 are symmetrically distributed on both sides, thereby achieving the purpose of improving the strength of the connection structure between the blocking slide 7 and the transmission pressure block 701 .
[0023] As a preferred implementation in this embodiment, Figure 1 As shown, the upper end of the driving stud 8 is fixedly connected with a knob block 802 , and the cross-sectional shape of the knob block 802 is a regular hexagon. The knob block 802 is used to facilitate the driving stud 8 to be screwed and rotated.
[0024] As a preferred implementation in this embodiment, Figure 1 As shown, the upper end of the guide column 9 is fixedly connected to a limit stopper 901 , and the cross-sectional shape of the limit stopper 901 is a rectangle.
[0025] Working principle:
[0026] During use, water flows into the one-way valve body 1 through the inlet end and rushes toward the valve plate 4, causing the valve plate 4 to flip upward and open, and the spring 6 further contracts, and the water is finally discharged through the outlet end of the one-way valve body 1. According to the use requirements, if it is necessary to adjust and limit the flow of water, the knob block 802 is used to rotate the transmission stud 8 to drive the blocking slide 7 to slide downward along the upper port of the one-way valve body 1, and the bottom of the transmission pressure block 701 slides and contacts the valve plate 4. The transmission pressure block 701 can be used to drive the valve plate 4 to flip in the closing direction, so that the flow of water can be adjusted and limited. If a backflow state occurs, the spring 6 in the contracted state and the water pressure make the valve plate 4 quickly flip and close, thereby ensuring a stable one-way check effect on the water flow.
[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A flow limiting one-way valve, comprising a one-way valve body (1), an upper port of the one-way valve body (1) being fixedly provided with a valve cover (2), characterized in that: A front seat (3) is fixedly arranged inside the one-way valve body (1), a valve plate (4) is rotatably connected to the front seat (3), a rear seat (5) is fixedly arranged inside the one-way valve body (1) at the rear side of the front seat (3), a spring (6) is arranged between the valve plate (4) and the spring (6), a side seat (401) is fixedly arranged on the side of the valve plate (4), one end of the spring (6) is movably hinged to the side seat (401) through a connecting block a (601), and the other end of the spring (6) is movably hinged to the rear seat (401) through a connecting block b (602). 5), the upper port of the one-way valve body (1) is slidably connected to a blocking slide (7), the valve cover (2) is threadedly connected to a transmission stud (8), the bottom end of the transmission stud (8) is rotatably connected to the blocking slide (7) through a rotating shaft (801), the upper end of the blocking slide (7) is symmetrically fixedly connected to two guide pillars (9), the guide pillars (9) slidably pass through the valve cover (2), the bottom of the blocking slide (7) is fixedly connected to a transmission pressure block (701), and the bottom of the transmission pressure block (701) is slidably in contact with the valve plate (4).
2. A flow limiting one-way valve according to claim 1, characterized in that: The water inlet port of the one-way valve body (1) is fixedly provided with a water inlet flange (101), and the water outlet port of the one-way valve body (1) is fixedly provided with a water outlet flange (102).
3. A flow limiting one-way valve according to claim 1, characterized in that: The upper port surface of the one-way valve body (1) is provided with a sealing groove (103), and the bottom of the valve cover (2) is fixedly provided with an annular sealing seat (201), and the annular sealing seat (201) is adapted to the sealing groove (103).
4. A flow limiting one-way valve according to claim 1, characterized in that: A reinforcement block (702) is fixedly connected between the blocking slide seat (7) and the transmission pressure block (701), and the reinforcement blocks (702) are arranged in a bilaterally symmetrical distribution.
5. A flow limiting one-way valve according to claim 1, characterized in that: The upper end of the transmission stud (8) is fixedly connected to a knob block (802), and the cross-sectional shape of the knob block (802) is a regular hexagon.
6. A flow limiting one-way valve according to claim 1, characterized in that: The upper end of the guide column (9) is fixedly connected to a limit stopper (901), and the cross-sectional shape of the limit stopper (901) is rectangular.