Check valve with pipeline quick-mounting structure

Abstract

The utility model provides a check valve with a pipeline quick-mounting structure, which comprises a check valve main body, large threaded rings arranged at two ends of the check valve main body, small threaded rings arranged in front of the threaded rings, an anti-backflow component arranged in the check valve main body, the large threaded rings in threaded fit with the check valve main body, the small threaded rings in fixed fit with the check valve main body, and the anti-backflow component arranged in the check valve main body. Therefore, the check valve has the advantages that a good matching effect can be achieved, assembly is simple, maintenance is facilitated, the outer diameters of the small threaded rings at the two ends of the check valve body are smaller than those of the large threaded rings, the small threaded rings and the large threaded rings can be matched with two pipeline structures of different sizes, the small threaded rings are fixedly matched with the check valve body, and therefore the check valve is convenient to use. And the check valve body comprises the first valve body and the second valve body, the first valve body and the second valve body are easy to assemble, and maintenance of the internal structure is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of check valves, and particularly relates to a check valve with a pipeline quick-installation structure. Background Art

[0002] A check valve is a valve with a circular disc as the opening and closing part, which blocks the backflow of the medium by its own weight and the medium pressure. It belongs to the automatic valve category, also known as non-return valve, one-way valve, reflux valve or isolation valve. Check valve is often used as the bottom valve of the pumping device to prevent the backflow of water.

[0003] At present, the coordination between the check valve and the pipeline generally requires an adapter, and the adapters corresponding to different sizes are different. Therefore, it is necessary to carry multiple adapters at work to meet the assembly needs, resulting in poor assembly effect.

[0004] Therefore, in view of the shortcomings of the above scheme in actual production and implementation, it has been revised and improved. At the same time, in the spirit and concept of seeking excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, the present utility model was created, and a check valve with a pipeline quick-install structure is provided to solve the above problems. Utility Model Content

[0005] The utility model provides a check valve with a pipeline quick-installation structure, which solves the problems in the prior art.

[0006] The technical solution of the utility model is implemented as follows: a check valve with a pipeline quick-install structure, comprising: a check valve body, large threaded rings are arranged at both ends of the check valve body, a small threaded ring is arranged in front of the large threaded ring, and an anti-backflow component is arranged in the check valve body.

[0007] As a preferred embodiment of a check valve with a pipeline quick-install structure, the check valve body includes a first valve body, the first valve body is matched with a second valve body, and a clamp is provided at the connection between the first valve body and the second valve body.

[0008] As a preferred embodiment of a check valve with a pipeline quick-install structure, the clamp includes a first semi-annular hoop body, one end of the first semi-annular hoop body is matched with a second semi-annular hoop body, fasteners are provided on both ends of the first semi-annular hoop body, and the first semi-annular hoop body is fixedly matched with the second semi-annular hoop body through the fasteners.

[0009] By adopting the above solution, the first semi-annular hoop body and the second semi-annular hoop body can realize the cooperation between the first valve body and the second valve body, and the disassembly and assembly are simple, which is convenient for maintenance.

[0010] As a preferred embodiment of a check valve with a pipeline quick-install structure, a large threaded ring is threadedly matched on the input end of the first valve body, and a large threaded ring is threadedly matched on the input and output ends of the second valve body.

[0011] With the above solution, the outer diameter of the large thread ring is larger than that of the small thread ring, so as to achieve the corresponding pipe size.

[0012] As a preferred embodiment of a check valve with a pipeline quick-install structure, a small threaded ring is fixedly fitted on the input end of the first valve body, and a small threaded ring is fixedly fitted on the input and output ends of the second valve body.

[0013] By adopting the above solution, the small threaded ring can limit the large threaded ring to avoid the problem of the large threaded ring slipping off, and secondly, the small threaded ring can be matched with the corresponding pipe size.

[0014] As a preferred embodiment of a check valve with a pipeline quick-install structure, the anti-backflow assembly includes a valve flap, one end of the valve flap is equipped with a flower plate, and a spring is equipped between the valve flap and the flower plate.

[0015] As a preferred embodiment of a check valve with a pipeline quick-install structure, the valve flap is fitted into the first valve body, the flower plate is fitted into the second valve body, a center rod is provided in the middle of the valve flap, and the center rod passes through the flower plate and extends to the output end.

[0016] As a preferred implementation of a check valve with a pipeline quick-install structure, the spring is sleeved on the center rod.

[0017] By adopting the above scheme, the pressure generated by the medium will force the spring to compress. At this time, the valve disc is close to the flower plate, thereby achieving conduction and realizing the flow of the medium. When there is no pressure, the valve disc closes the input port to prevent the backflow of the medium.

[0018] After adopting the above technical solution, the beneficial effects of the utility model are: the structure can achieve a better matching effect, is simple to assemble, and is easy to maintain.

[0019] The outer diameter of the small threaded rings at both ends of the check valve body is smaller than the large threaded ring. The small threaded ring and the large threaded ring can be matched with two pipeline structures of different sizes. The small threaded ring and the check valve body are fixedly matched to limit the large threaded ring and avoid the problem of the large threaded ring slipping.

[0020] The check valve body comprises a first valve body and a second valve body. The first valve body and the second valve body are easy to assemble, which is beneficial to the maintenance of the internal structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a schematic diagram of the check valve structure with a pipeline quick-install structure of the utility model;

[0023] Figure 2 This is a structural disassembly diagram of the check valve with a pipeline quick-install structure of the utility model;

[0024] Figure 3 This is a cross-sectional view of the check valve structure with a pipeline quick-install structure of the utility model;

[0025] In the figure, 1-first valve body; 2-second valve body; 3-large threaded ring; 4-small threaded ring; 5-hoop; 51-first semi-annular hoop body; 52-second semi-annular hoop body; 53-fastener; 6-valve disc; 61-center rod; 7-flower-shaped plate; 8-spring. DETAILED DESCRIPTION

[0026] 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 of 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.

[0027] like Figure 1-3 As shown, a check valve with a pipeline quick-install structure includes: a check valve body, large threaded rings 3 are arranged at both ends of the check valve body, a small threaded ring 4 is arranged in front of the large threaded ring 3, and an anti-backflow component is arranged in the check valve body.

[0028] The check valve body includes a first valve body 1 , the first valve body 1 is matched with a second valve body 2 , and a clamp 5 is provided at the connection between the first valve body 1 and the second valve body 2 .

[0029] Furthermore, the hoop 5 includes a first semi-annular hoop body 51 , one end of which is matched with a second semi-annular hoop body 52 , fasteners 53 are provided on both ends of the first semi-annular hoop body 51 , and the first semi-annular hoop body 51 is fixedly matched with the second semi-annular hoop body 52 via the fasteners 53 .

[0030] The first semi-annular hoop body 51 and the second semi-annular hoop body 52 can realize the cooperation between the first valve body 1 and the second valve body 2, and the disassembly and assembly are simple, which is convenient for maintenance.

[0031] The input end of the first valve body 1 is threadedly matched with a large threaded ring 3 , and the input and output ends of the second valve body 2 are threadedly matched with a large threaded ring 3 .

[0032] A small threaded ring 4 is fixedly matched on the input end of the first valve body 1 , and a small threaded ring 4 is fixedly matched on the input and output ends of the second valve body 2 .

[0033] Furthermore, the outer diameter of the small threaded ring 4 at both ends of the check valve body is smaller than the large threaded ring 3, and the small threaded ring 4 and the large threaded ring 3 can be matched with two pipeline structures of different sizes, wherein the small threaded ring 3 and the check valve body are fixedly matched to achieve the limitation of the large threaded ring 3 and avoid the problem of the large threaded ring 3 slipping.

[0034] The backflow prevention component includes a valve flap 6 , one end of which is matched with a flower-shaped plate 7 , and a spring 8 is matched between the valve flap 6 and the flower-shaped plate 7 .

[0035] The valve flap 6 is fitted in the first valve body 1 , the flower plate 7 is fitted in the second valve body 2 , a center rod 61 is provided in the middle of the valve flap 6 , and the center rod 61 penetrates the flower plate 7 and extends toward the output end.

[0036] The spring 8 is sleeved on the center rod 61 .

[0037] When using the check valve, since the pipeline has a standard caliber, the connection can be achieved by matching the small threaded ring 4 or the large threaded ring 3 according to the caliber. The assembly is simple and the valve has good adaptability to pipelines of different sizes.

[0038] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A check valve with a pipeline quick-install structure, characterized in that: include: A check valve body, wherein large threaded rings (3) are arranged at both ends of the check valve body, a small threaded ring (4) is arranged in front of the large threaded ring (3), and an anti-backflow component is arranged inside the check valve body.

2. A check valve with a pipeline quick-install structure according to claim 1, characterized in that: The check valve body comprises a first valve body (1), the first valve body (1) is matched with a second valve body (2), and a clamp (5) is provided at the connection between the first valve body (1) and the second valve body (2).

3. The check valve with pipeline quick-install structure according to claim 2, characterized in that: The hoop (5) comprises a first semi-annular hoop body (51), one end of the first semi-annular hoop body (51) is matched with a second semi-annular hoop body (52), fasteners (53) are provided on both ends of the first semi-annular hoop body (51), and the first semi-annular hoop body (51) is fixedly matched with the second semi-annular hoop body (52) via the fasteners (53).

4. The check valve with pipeline quick-install structure according to claim 2, characterized in that: The first valve body (1) has a large threaded ring (3) threadedly matched on the input end, and the second valve body (2) has a large threaded ring (3) threadedly matched on the input and output ends.

5. The check valve with pipeline quick-install structure according to claim 2, characterized in that: A small threaded ring (4) is fixedly fitted on the input end of the first valve body (1), and a small threaded ring (4) is fixedly fitted on the input and output ends of the second valve body (2).

6. The check valve with pipeline quick-install structure according to claim 1, characterized in that: The anti-backflow component comprises a valve flap (6), one end of the valve flap (6) is matched with a flower-shaped plate (7), and a spring (8) is matched between the valve flap (6) and the flower-shaped plate (7).

7. The check valve with pipeline quick-install structure according to claim 6, characterized in that: The valve flap (6) is fitted in the first valve body (1), the flower-shaped plate (7) is fitted in the second valve body (2), a center rod (61) is provided in the middle of the valve flap (6), and the center rod (61) penetrates the flower-shaped plate (7) and extends toward the output end.

8. The check valve with pipeline quick-install structure according to claim 6, characterized in that: The spring (8) is sleeved on the central rod (61).

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