Direction-controllable one-way valve
By using a rotating handwheel to control the lead screw and a U-shaped shift fork to switch the slider, the problem of disassembly and reassembly required for reverse flow in existing one-way valves is solved, achieving convenient adjustment and cost savings.
Patent Information
- Application Number
- CN202520052500.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing check valves require time-consuming and laborious disassembly and assembly when reverse flow is needed, and the internal medium is prone to leakage, making it difficult to conveniently adjust the flow direction.
Design a directional controllable one-way valve. By rotating the handwheel, the lead screw drives the U-shaped fork and the switching slider to switch the valve disc and change the flow direction without disassembling the valve body.
It enables convenient adjustment of the flow direction of the one-way valve, saving costs and maintenance time, and preventing the medium from flowing out.
Smart Images
Figure CN223754721U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to one -way valve technical field especially relates to a direction controllable one -way valve. BACKGROUND
[0002] One -way valve is check valve, is the medium only one direction flow and cannot reverse flow direction control valve, when installing one -way valve, should pay special attention to medium flow direction, should make the normal flow direction of medium and the arrow direction on the valve body consistent, otherwise will cut off the normal flow of medium. But in some cases, need the medium reverse one -way flow, that is, by the original outlet to the original inlet one -way flow, at this moment, then need to install one -way valve reversely, or use two one -way valves, and the dismounting of one -way valve is time -consuming and labor -intensive, and the internal medium is easy to flow out in the dismounting process, therefore, to solve the above -mentioned problem designs a direction controllable one -way valve. SUMMARY
[0003] The utility model discloses a direction controllable one -way valve, and has the advantages of flow direction adjustable, convenient to adjust and the like.
[0004] To achieve the above -mentioned purpose, one kind of technical scheme that the utility model adopts is: a direction controllable one -way valve, including valve body, screw rod, U -shaped shift fork, switching slider and reversing valve group, the valve body middle part has installation cavity, the both ends of valve body have import and export respectively with the bore diameter less than installation cavity, be equipped with switching slider in the installation cavity, be equipped with reversing valve group in the switching slider, the switching slider is connected through the axial sliding of reversing valve group in the valve body, the outside of switching slider has sliding pin, the U -shaped shift fork lateral wall has the inclined slide groove, the U -shaped shift fork opening end is buckled in the outside of switching slider, the sliding pin of switching slider slides in the inclined slide groove of U -shaped shift fork lateral wall, the top end of U -shaped shift fork is rotatably connected with screw rod, the screw rod passes through valve body and is engaged with it, the movement path of U -shaped shift fork is perpendicular to the movement path of switching slider;
[0005] Preferably, the reversing valve group includes a spring, a guide rod, and a valve flap, the guide rod is axially slidably connected at both ends of the switching slider, the guide rod is axially slidably connected at the middle part of the valve body, the guide rod is fixedly connected with the valve flap outside, the spring is arranged between the two guide rods, the spring forces the guide rod to drive the valve flap to extend outward and abut against the valve body, only one side of the two valve flaps abuts against the valve body;
[0006] Further preferably, the contact surface between the valve flap and the valve body further has a sealing ring;
[0007] Preferably, the end of the screw rod extending out of the valve body further has a hand wheel for easy rotation;
[0008] Preferably, the both ends of the valve body have flanges for connection;
[0009] The utility model discloses a beneficial effect is: 1, through the rotation of the hand wheel of valve body outside drive screw rod axial movement, and the U-shaped shift fork of screw rod drives simultaneously in the valve body installation cavity movement, and U-shaped shift fork movement simultaneously drive switching slider along the axial movement of valve body, to switch the other side valve clack to lean against the valve body, to realize the purpose of changing the flow direction of check valve, 2, the whole switching process does not need to dismount and replace valve body, and the cost and maintenance time are saved greatly, thereby reach the purpose that is convenient for adjusting. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the internal structure view of the utility model valve body section open state.
[0011] Figure 2 It is the section structure view of the utility model.
[0012] Figure 3 It is the internal structure view of the utility model valve body section open state after direction switching.
[0013] Figure 4 It is the section structure view of the utility model after direction switching. DETAILED DESCRIPTION
[0014] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.
[0015] It should be noted that, in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0016] In addition, it should also be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "provided with", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0017] Please refer to Figures 1 to 4 The utility model embodiment includes:
[0018] A direction controllable check valve, comprising a valve body 1, a screw rod 2, a U-shaped shift fork 3, a switching slider 4 and a reversing valve group 5, the valve body 1 has a mounting cavity 11 in the middle, the valve body 1 has an inlet and an outlet with smaller hole diameter than the mounting cavity 11 at both ends, the switching slider 4 is arranged in the mounting cavity 11, the reversing valve group 5 is arranged in the switching slider 4, the switching slider 4 is axially slidably connected in the valve body 1 through the reversing valve group 5, the switching slider 4 has a sliding pin 41 on the outside, the U-shaped shift fork 3 has an inclined sliding groove 31 on the side wall, the U-shaped shift fork 3 is buckled on the outside of the switching slider 4 at the open end, the sliding pin 41 of the switching slider 4 slides in the inclined sliding groove 31 of the side wall of the U-shaped shift fork 3, the screw rod 2 is rotatably connected to the top end of the U-shaped shift fork 3, the screw rod 2 penetrates through the valve body 1 and is engaged therewith, the movement path of the U-shaped shift fork 3 is perpendicular to the movement path of the switching slider 4;
[0019] The reversing valve group 5 comprises a spring 51, a guide rod 52 and a valve flap 53, the guide rod 52 is axially slidably connected at both ends of the switching slider 4, the middle part of the guide rod 52 is axially slidably connected with the valve body 1, the valve flap 53 is fixedly connected to the outside of the guide rod 52, the spring 51 is arranged between the two guide rods 52, the spring 51 forces the guide rod 52 to drive the valve flap 53 to extend outward and abut against the valve body 1, only one side of the two valve flaps 53 abuts against the valve body 1;
[0020] The contact surface between the valve flap 53 and the valve body 1 also has a sealing ring;
[0021] The screw rod 2 further has a hand wheel 6 at one end of the valve body 1 for easy rotation;
[0022] The valve body 1 has flanges 12 at both ends for connection;
[0023] Through the above arrangement, the specific working principle in actual working process is as follows:
[0024] When changing the flow direction of the check valve, the screw rod 2 is axially moved by rotating the hand wheel 6 on the outside of the valve body 1, the U-shaped shift fork 3 in the mounting cavity 11 of the valve body 1 is moved at the same time, the sliding pin 41 of the switching slider 4 slides in the inclined sliding groove 31 of the side wall of the U-shaped shift fork 3 at the same time, the movement path of the U-shaped shift fork 3 is perpendicular to the movement path of the switching slider 4, so that the U-shaped shift fork 3 moves while driving the switching slider 4 to move axially along the valve body 1, thereby switching the other side valve flap 53 to abut against the valve body 1 Figure 1 The state changes to Figure 3 The state) to achieve the purpose of changing the flow direction of the check valve;
[0025] When the one-way valve works, only one side of the valve disc 53 abuts against the valve body 1, so that the medium flows from the inlet end, thereby pushing open the valve disc 53 abutting against one side of the valve body 1, and the valve disc 53 is pushed open by the medium while compressing the spring 51 through the guide rod 52, at this time, the other side of the valve disc 53 cannot abut against the valve body 1 under the limitation of the switching slider 4, so that the one-way flow of the medium can be realized; when the medium generates reverse flow, because the medium on the inlet side cannot provide the pressure for pushing open the valve disc 53, the spring 51 forces the valve disc 53 to abut against the valve body 1 again for sealing, thereby preventing the reverse flow of the medium;
[0026] The above is only the embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields by using the content of the present application, are also included in the patent protection range of the present application.
Claims
1. A directional controllable one-way valve, characterized in that, The valve includes a valve body, a lead screw, a U-shaped fork, a switching slider, and a reversing valve assembly. The valve body has a mounting cavity in the middle, and inlet and outlet with diameters smaller than the mounting cavity are respectively located at both ends of the valve body. The switching slider is provided in the mounting cavity, and the reversing valve assembly is provided in the switching slider. The switching slider is axially slidably connected to the valve body through the reversing valve assembly. The outer side of the switching slider has a sliding pin. The side wall of the U-shaped fork has an inclined groove. The open end of the U-shaped fork is engaged with the outer side of the switching slider. The sliding pin of the switching slider slides in the inclined groove of the side wall of the U-shaped fork. The top of the U-shaped fork is rotatably connected to a lead screw, which passes through the valve body and engages with it. The movement path of the U-shaped fork is perpendicular to the movement path of the switching slider.
2. The directional controllable check valve according to claim 1, characterized in that, The reversing valve assembly includes a spring, a guide rod, and a valve disc. The guide rod is axially slidably connected to both ends of the switching slider. The middle part of the guide rod is axially slidably connected to the valve body. A valve disc is fixedly connected to the outer side of the guide rod. The spring is disposed between the two guide rods. The spring forces the guide rod to drive the valve disc to extend outward and abut against the valve body. Only one side of the valve disc abuts against the valve body.
3. A directional controllable check valve according to claim 2, characterized in that, The contact surface between the valve disc and the valve body also has a sealing ring.
4. A directional controllable one-way valve according to claim 1, characterized in that, The lead screw also has a handwheel for easy rotation at one end extending from the valve body.
5. A directional controllable check valve according to claim 1, characterized in that, The valve body has flanges at both ends for connection.