CN206830891U - Fast-connecting type upper plate check-valves - Google Patents

Abstract

The quick-connect type upper plate check valve includes a valve body, one end of the valve body is a water inlet, and the other end is a water outlet. The water inlet channel of the valve body is provided with a circular water inlet hole. The rebound device of the upper plate of the water inlet, the rebound device of the upper plate includes a circular upper plate for blocking the water inlet, and the center of the circular upper plate is connected with the coaxial direction of the water inlet. A sleeve, the sleeve is equipped with a fixed rod, a spring is provided between the front end of the fixed rod and the inside of the sleeve, the sleeve can be used to telescopically move on the fixed rod, and the rear end of the fixed rod is fixedly connected with the disc frame , the disc frame is fixed in the water outlet channel.

Description

Quick connect upper plate check valve

technical field

The utility model relates to a check valve, in particular to a quick-connected upper plate check valve.

Background technique

Check valve refers to the valve that relies on the flow of the medium itself to automatically open and close the disc to prevent the backflow of the medium, also known as check valve, one-way valve, reverse flow valve and back pressure valve. The check valve is a kind of automatic valve, its main function is to prevent the reverse flow of the medium, the reverse rotation of the pump and the drive motor, and the discharge of the container medium. Check valves are also used on lines that supply auxiliary systems where the pressure may rise above system pressure. Existing check valves are divided into swing check valves, lift check valves, vertical lift check valves, etc. These check valves have the following defects:

1. Most of the existing check valves are complex in structure and difficult to process, which greatly increases the production cost;

2. The inlet and outlet ends of the check valve body are wrapped with raw material tape, and then screwed with the pipeline thread. If the check valve needs to be installed in a narrow space such as a corner, it will cause inconvenience in the installation of the pipeline and the inlet and outlet ends. The spin tightening process is laborious and time consuming.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a quick-connect upper plate check valve with simple structure and convenient installation.

The utility model is realized through the following technical scheme: the quick-connected upper plate check valve includes a valve body, one end of the valve body is a water inlet, the other end is a water outlet, and a circular water inlet is arranged in the water inlet channel of the valve body , the valve body is provided with an upper plate resilience device for blocking the water inlet, and the upper plate rebound device includes a circular upper plate for blocking the water inlet, and the center of the circular upper plate is The sleeve is connected with the coaxial direction of the water inlet, the sleeve is equipped with a fixed rod, and a spring is arranged between the front end of the fixed rod and the inside of the sleeve, and the sleeve can be used to stretch and move on the fixed rod. The rear end of the fixing rod is fixedly connected with the disk frame, and the disk frame is fixed in the water outlet channel.

Further, a slide groove is provided on the surface of the sleeve of the present invention, and a flange that can slide on the slide groove is provided on the fixing rod.

Further, the inner walls of the two ends of the water inlet and the water outlet of the utility model are provided with rubber sealing sleeves, and the rubber sealing sleeves are connected to the threaded interfaces of the water inlet and the water outlet through quick-connect nuts, and the rear end of the rubber sealing sleeve is connected to the threaded interface of the water outlet. A washer is arranged between the inner sides of the quick joint, and the front end of the rubber sealing sleeve is supported on the disc frame.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. In the valve body of the utility model, there is a circular upper plate that can block the water inlet. The circular upper plate controls the one-way water flow through spring expansion and contraction. The whole product is easy to assemble, easy to disassemble and clean, and the processing cost is low;

2. The utility model adopts the quick-connect nut to connect with the pipeline quickly, and it is sealed by the rubber sealing ring. At the same time, the gasket is used to tighten the quick-connect nut, so as to prevent the rubber sealing ring from rotating and improve the sealing effect after connection. It is easy to install. Save installation time and improve work efficiency.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is the structural representation of the utility model.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can also be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The quick-connect upper plate check valve of this embodiment, as shown in Figure 1, the quick-connect upper plate check valve includes a valve body 1, one end of the valve body is the water inlet 2, and the other end is the water outlet 3, the valve body The water inlet channel of 1 is provided with a circular water inlet hole 4, and the valve body 1 is provided with an upper plate resilience device for blocking the water inlet hole 4, and the upper plate rebound device includes a valve for blocking the inlet hole 4. The circular upper plate 5 of the water hole 4, the center of circle of the circular upper plate 5 is connected with the sleeve 6 in the coaxial direction with the water inlet, the fixed rod 7 is housed in the sleeve 6, and the fixed rod 7 A spring 8 is arranged between the front end and the inside of the sleeve 6, a chute 60 is provided on the surface of the sleeve 6, and a flange 70 that can slide on the chute is provided on the fixed rod 7, and the sleeve 6 can be used for fixing The telescopic movement on the rod will not break away, and the rear end of the fixed rod 7 is fixedly connected with the disc frame 9, and the disc frame 9 is fixed in the water outlet channel.

In order to make disassembly and assembly of the utility model more convenient, the inner walls of the two ends of the water inlet 2 and the water outlet 3 are provided with rubber sealing sleeves 10, and the rubber sealing sleeves 10 are connected to the threaded interfaces of the water inlet 2 and the water outlet 3 through quick-connect nuts 11 A washer 12 is provided between the rear end of the rubber sealing sleeve 10 and the inner side of the quick joint, and the front end of the rubber sealing sleeve 10 is pushed against the disc frame.

When the utility model is used, the water inlet and the water outlet are connected to the pipeline through the quick-connect nut 11, the water outlet is upward, and the water inlet is downward. Compression of spring 8 makes the water in the valve body flow out from the water outlet. When the water pump stopped working, the circular upper plate was blocked by the upper water pressure to prevent the water from flowing backward.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle and purpose of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (3)

1. fast-connecting type upper plate check-valves, including valve body, valve body one end is water inlet, and the other end is delivery port, and the water inlet of valve body is led to Circular inlet opening is provided with road, it is characterised in that：The upper plate resilient mounting for being used for blocking inlet opening is provided with the valve body, it is described Upper plate resilient mounting includes being used for the circular upper plate for blocking inlet opening, is connected with the center of circle of the circular upper plate same with inlet opening The sleeve of direction of principal axis, the sleeve built with fix bar, in the fix bar front end and sleeve between be provided with a spring, it is described solid Fixed pole rear end is fixedly connected with circular disk rack, and the circular disk rack is fixed in exhalant canal.

2. fast-connecting type upper plate check-valves according to claim 1, it is characterised in that：The sleeve surface is provided with chute, The fix bar is provided with the flange that can be slided on chute.

3. fast-connecting type upper plate check-valves according to claim 1, it is characterised in that：Water inlet and the delivery port both ends Inwall is provided with rubber sealing boot, and rubber sealing boot is connected by fast connected nut with the hickey of water inlet and delivery port, described Packing ring is provided between on the inside of the rearward end and fast joint of rubber sealing boot, the leading section of the rubber sealing boot withstands on circular disk rack On.