Novel check valve and valve body structure thereof

Abstract

The utility model is suitable for the technical field of check valves, and provides a novel check valve and a valve body structure thereof. The liquid inlet end is fixedly arranged at the central position of the outer wall of one side of the check valve body; the liquid outlet end is fixedly arranged at the central position of the outer wall of the other side of the check valve body; the partition plate is welded on the inner side wall of the check valve body; the valve hole is formed in the outer side wall of the partition plate; the two supporting blocks are integrally and symmetrically formed in the positions, close to the upper portion of the valve hole, of the outer side wall of the partition plate; the valve plate is rotationally connected between the two supporting blocks; the guide rod is welded on the outer side wall of the valve plate; the push block is driven to move towards the valve plate on the outer side of the check valve body, and the valve plate and the partition plate are conveniently separated through the pressure applied to the valve plate in the continuous moving process of the push block, so that the icing position at the butt joint is broken, the valve plate has the autonomous moving capacity, and the non-return capacity is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of check valve technology, and in particular relates to a novel check valve and its valve body structure. Background Technology

[0002] A check valve is a type of valve whose opening and closing element is a circular valve disc that relies on its own weight and the pressure of the medium to prevent the backflow of the medium. It belongs to the category of automatic valves and is also known as a non-return valve, one-way valve, reflux valve, or isolation valve.

[0003] In some cold regions, when using check valves outdoors, the valve core inside the check valve is easily frozen, rendering it unusable. Frozen valve cores are also difficult to thaw. Furthermore, the pressure-bearing capacity of the valve core in existing check valves is fixed, making it difficult to adjust according to the pressure of different liquids. This can easily lead to problems such as the valve core not opening completely, affecting the flow rate.

[0004] Therefore, a novel check valve and its valve body structure are proposed. Utility Model Content

[0005] This utility model provides a novel check valve and its valve body structure, aiming to solve the above-mentioned problems.

[0006] This utility model is implemented as follows: a novel check valve and its valve body structure, comprising: a check valve body; an inlet fixedly disposed at the center of one side of the outer wall of the check valve body; an outlet fixedly disposed at the center of the other side of the outer wall of the check valve body; a partition welded to the inner wall of the check valve body; a valve hole formed on the outer wall of the partition; two support blocks integrally and symmetrically formed on the outer wall of the partition near the valve hole; a valve plate rotatably connected between the two support blocks; a guide rod welded to the outer wall of the valve plate; a guide sleeve through and fixed to the top of the check valve body; a spring embedded inside the guide sleeve; a sleeve screwed onto the top of the guide sleeve; a protective cover fixed to the top of the check valve body near the outer side of the sleeve by screws; an extended boss integrally formed on the bottom of the check valve body; a screw screwed onto the center of the outer wall of the extended boss; and a push block rotating at one end of the screw.

[0007] Preferably, the check valve body is a hollow structure, and both the inlet and outlet ends are connected to the internal space of the check valve body, and both the inlet and outlet ends are provided with flanges.

[0008] Preferably, the partition and the inner bottom of the check valve body are arranged at a 60-degree angle.

[0009] Preferably, the cross-sections of the valve plate and the valve hole are both circular, and the outer diameter of the valve plate is larger than the inner diameter of the valve hole.

[0010] Preferably, the cross-sections of the guide rod and the guide sleeve are both circular arcs, and the rotation axis at the connection between the support block and the valve plate and the center of the guide rod and the guide sleeve are on the same axis.

[0011] Preferably, one end of the guide rod is located inside the guide sleeve, and the guide rod and the sleeve head respectively compress both ends of the spring.

[0012] Preferably, the outer wall of the boss is provided with a recessed hole for receiving the push block.

[0013] Preferably, a handwheel is provided at the end of the screw away from the push block.

[0014] Compared with the prior art, the embodiments of this application have the following main advantages:

[0015] By driving the push block on the outside of the check valve body to move towards the valve plate, and by using the pressure applied to the valve plate during the continuous movement of the push block, the valve plate and the partition are easily separated, thereby causing the ice at the joint to break, giving the valve plate the ability to move independently, thus achieving the backflow prevention capability. One end of the guide sleeve is exposed through the check valve body, which facilitates the replacement of springs with different deformation capabilities, thereby making the valve plate open more easily or with greater resistance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the diaphragm and valve plate mating structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the screw structure of this utility model.

[0020] In the diagram: 1. Check valve body; 2. Inlet end; 3. Outlet end; 4. Baffle plate; 5. Valve hole; 6. Support block; 7. Valve plate; 8. Guide rod; 9. Guide sleeve; 10. Spring; 11. Sleeve head; 12. Protective cover; 13. Extension boss; 14. Screw; 15. Push block. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model provides a novel check valve and its valve body structure, such as Figure 1-4 As shown, the device includes a check valve body 1. An inlet end 2 is located at the center of one outer wall of the check valve body 1, and an outlet end 3 is located at the center of the other outer wall. The check valve body 1 is a hollow structure. Both the inlet end 2 and the outlet end 3 are connected to the internal space of the check valve body 1, and flanges are provided on both ends. A partition plate 4 is welded to the inner wall of the check valve body 1, forming a 60-degree angle with the bottom of the check valve body 1. A valve hole 5 is opened on one outer wall of the partition plate 4, and two support blocks 6 are symmetrically welded to one outer wall of the partition plate 4 near the valve hole 5. A valve plate 7 is rotatably connected between the two support blocks 6. A guide rod 8 is welded to the outer wall of the valve plate 7 on the side away from the partition plate 4. A guide sleeve 9 is fixedly inserted through the top of the body 1. A spring 10 is installed inside the guide sleeve 9, and a sleeve head 11 is connected to the top of the guide sleeve 9 by a threaded connection. One end of the guide rod 8 is located inside the guide sleeve 9, and the guide rod 8 and the sleeve head 11 respectively press the two ends of the spring 10. A protective cover 12 is fixedly connected to the top of the check valve body 1 near the outer side of the sleeve head 11 by screws. An extension boss 13 is integrally formed at the bottom of the check valve body 1. A screw rod 14 is connected to the center of one side of the outer wall of the extension boss 13 by a threaded connection. A push block 15 is rotatably connected to one end of the screw rod 14 near the inside of the check valve body 1. A recessed hole is opened on the outer wall of the extension boss 13 for the push block 15 to be received. A handwheel is provided on the end of the screw rod 14 away from the push block 15.

[0024] It should be noted that in some cold regions, when using check valves outdoors, the valve core inside the check valve is easily frozen, rendering it unusable. Frozen valve cores are also difficult to thaw. Furthermore, the pressure resistance of the valve core in existing check valves is fixed, making it difficult to adjust according to the pressure of different liquids. This can easily lead to incomplete valve opening, affecting flow rate. In this embodiment, the push block 15 is driven to move towards the valve plate 7 from the outside of the check valve body 1. The pressure applied to the valve plate 7 during the continuous movement of the push block 15 facilitates the separation of the valve plate 7 and the partition 4, causing the frozen area at the joint to break. This allows the valve plate 7 to move autonomously, achieving backflow prevention. One end of the guide sleeve 9 protrudes from the check valve body 1, facilitating the replacement of springs 10 with different deformation capabilities, thus making the valve plate 7 easier to open or providing greater resistance.

[0025] Specifically, in this embodiment, the solution mainly includes a guide rod 8, a guide sleeve 9, a spring 10, and a screw 14. When the check valve body 1 is used outdoors in cold weather, the joint between the partition 4 and the valve plate 7 is prone to freezing and sticking together. At this time, the screw 14 can be rotated, and the screw 14 and the extension boss 13 are connected by a threaded connection. The screw 14 drives the push block 15 to move towards the valve plate 7. After the push block 15 passes through the valve hole 5, it contacts the valve plate 7. Simultaneously, the screw 14 is rotated continuously, and the pushing force applied to the valve plate 7 by the push block 15 makes the valve plate 7 and the partition... 4. Separation allows the valve plate 7 to open or close, thus ensuring that the check valve body 1 has valve capacity. When it is necessary to adjust the pressure resistance of the valve plate 7, remove the protective cover 12, unscrew the sleeve 11, and replace it with a spring 10 with the required elasticity. Then screw the sleeve 11 back on. When the valve plate 7 is pushed upward, the guide rod 8 on the valve plate 7 moves along the inner side of the guide sleeve 9. The guide rod 8 squeezes the spring 10, and the spring 10 is deformed under pressure. The valve plate 7 and the partition plate 4 separate, so that the liquid in the check valve body 1 can flow in one direction.

[0026] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the cross-sections of both the valve plate 7 and the valve hole 5 are circular, and the outer diameter of the valve plate 7 is larger than the inner diameter of the valve hole 5.

[0027] In this embodiment, the valve plate 7 can cover the valve hole 5 on the partition plate 4, thereby blocking the flow of liquid.

[0028] In a further preferred embodiment of this utility model, such as Figure 1 and Figure 3 As shown, the cross-sections of both the guide rod 8 and the guide sleeve 9 are circular arcs, and the rotation axis at the connection between the support block 6 and the valve plate 7 and the center of the guide rod 8 and the guide sleeve 9 are on the same axis.

[0029] In this embodiment, the guide rod 8 and the guide sleeve 9, whose centers are on the same axis, allow one end of the guide rod 8 to move inside the guide sleeve 9. The guide sleeve 9 limits the movement trajectory of the guide rod 8 and also limits the deformation of the spring 10.

[0030] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0031] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0032] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A novel check valve and its valve body structure, characterized in that, include: Check valve body (1); The liquid inlet (2) is fixedly located at the center of the outer wall on one side of the check valve body (1); and The liquid outlet (3) is fixedly located at the center of the outer wall on the other side of the check valve body (1); A partition plate (4) welded to the inner wall of the check valve body (1); A valve hole (5) is opened on the outer wall of the partition (4); and Two support blocks (6) are integrally and symmetrically formed on the outer wall of the partition (4) near the valve hole (5) above the valve hole; Rotary valve plate (7) connected between the two support blocks (6); Guide rod (8) welded to the outer wall of the valve plate (7); A guide sleeve (9) is fixed to the top of the check valve body (1); A spring (10) embedded inside the guide sleeve (9); and The sleeve (11) is screwed onto the top of the guide sleeve (9) by thread; The protective cover (12) is fixed to the top of the check valve body (1) near the outer side of the sleeve (11) by screws; An extended boss (13) integrally formed on the bottom of the check valve body (1); A screw (14) threaded onto the center of the outer side wall of the extended boss (13); A pusher (15) that rotates at one end of the screw (14).

2. The novel check valve and its valve body structure as described in claim 1, characterized in that, The check valve body (1) is a hollow structure. The inlet end (2) and outlet end (3) are both connected to the internal space of the check valve body (1), and flanges are provided on both the inlet end (2) and outlet end (3).

3. The novel check valve and its valve body structure as described in claim 1, characterized in that, The partition (4) and the bottom of the check valve body (1) are set at a 60-degree angle.

4. The novel check valve and its valve body structure as described in claim 1, characterized in that, The cross-sections of the valve plate (7) and the valve hole (5) are both circular, and the outer diameter of the valve plate (7) is larger than the inner diameter of the valve hole (5).

5. The novel check valve and its valve body structure as described in claim 1, characterized in that, The cross-sections of the guide rod (8) and the guide sleeve (9) are both circular arcs. The rotation axis at the connection between the support block (6) and the valve plate (7) and the center of the guide rod (8) and the guide sleeve (9) are on the same axis.

6. The novel check valve and its valve body structure as described in claim 1, characterized in that, One end of the guide rod (8) is located inside the guide sleeve (9), and the guide rod (8) and the sleeve (11) respectively compress the two ends of the spring (10).

7. The novel check valve and its valve body structure as described in claim 1, characterized in that, The outer wall of the boss (13) is provided with a recess for receiving the push block (15).

8. A novel check valve and its valve body structure as described in claim 1, characterized in that, A handwheel is provided at the end of the screw (14) away from the push block (15).

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