CN210448314U - Check valve - Google Patents

Abstract

The utility model discloses a check valve, which comprises a check valve body, wherein both ends of the check valve body are communicated with a water inlet pipe and a water outlet pipe; the water inlet pipe and the water outlet pipe are both communicated with a multi-runner pipe, and the multi-runner pipe is positioned in the middle of the corresponding water inlet pipe and the corresponding water outlet pipe; the multi-runner pipe is provided with a plurality of runners, filter element pipes are assembled in the runners, each filter element pipe comprises a filter element, the end parts of the two ends of each filter element are connected with clamping rings, each clamping ring is provided with an annular clamping groove, and the wall of an inner cavity of each runner is provided with an annular flange matched with the annular clamping groove; the filter cover components are arranged in the water inlet pipe and the water outlet pipe respectively, and the filter cover components positioned on the water inlet pipe are arranged at the water outlet end of the multi-channel pipe; the filter cover component positioned on the water outlet pipe is assembled at the water inlet end of the multi-runner pipe. Effectively use above-mentioned device on the pipeline of carrying the purified water, effectively avoided the purified water transportation in-process, the dirt pollution in the pipeline is easily had to the purified water.

Description

Check valve

Technical Field

The utility model relates to a valve field especially relates to a check valve.

Background

The check valve is mainly used for controlling water flow and can perform check at the same time. The check valves disclosed in the prior art can only be used for the control of a water carrying flow pipe,

however, the check valves disclosed in the prior art are not suitable for use in check valves for purified water supply lines.

The main reason is that the purified water has high requirement on the content of impurities in water, especially insoluble granular materials, and when water flows through the check valve, the water easily stays in the valve body, so that the impurities in the valve are washed away by the water flow when the next water flow is caused.

Meanwhile, the valve is easy to age and delaminate in work, such as a rubber sheet of the valve, and delaminated objects are more easily carried by water flow, so that water quality pollution is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a check valve is provided.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

a check valve comprises a check valve body, wherein a water inlet pipe and a water outlet pipe are communicated with two ends of the check valve body;

the water inlet pipe and the water outlet pipe are both communicated with a multi-runner pipe, and the multi-runner pipe and the corresponding water inlet pipe and the corresponding water outlet pipe are integrally formed;

the multi-channel pipe is positioned in the middle of the corresponding water inlet pipe and the water outlet pipe;

the multi-runner pipe is provided with a plurality of runners, filter element pipes are assembled in the runners, each filter element pipe comprises a filter element, the end parts of the two ends of each filter element are connected with clamping rings, each clamping ring is provided with an annular clamping groove, and the wall of an inner cavity of each runner is provided with an annular flange matched with the annular clamping groove;

the filter cover components are arranged in the water inlet pipe and the water outlet pipe respectively, and the filter cover components positioned on the water inlet pipe are arranged at the water outlet end of the multi-channel pipe; the filter cover component positioned on the water outlet pipe is assembled at the water inlet end of the multi-runner pipe.

Preferably, the flow channel is cylindrical, the outer diameter of the filter element pipe is smaller than the inner diameter of the flow channel, flow channel openings are formed in two ends of the flow channel, and the multi-flow-channel pipe is communicated with the corresponding water inlet pipe and the corresponding water outlet pipe through the flow channel openings;

the annular flange is positioned at the runner port parts at the two ends of the runner.

Preferably, the filter housing assembly comprises a housing ring body, and a metal filter housing net is fixedly connected to the housing ring body.

Preferably, the top and the bottom of the cover ring body are in threaded connection with the corresponding water inlet pipe and the water outlet pipe through bolts;

preferably, the body of inlet tube and outlet pipe is seted up on with bolt complex screw, the spiro union of bolt spiro union screw back spiro union is to covering on the ring body.

Preferably, the outer side wall of the cover ring body is tightly attached to the inner pipe walls of the corresponding water inlet pipe and the water outlet pipe.

Preferably, the metal filter cover mesh has a concave face and a convex face;

the sunken surfaces on the metal filter cover net face the water inlet pipe.

Preferably, the nozzle of the water inlet pipe is provided with a water inlet connecting flange;

and the pipe orifice of the water outlet pipe is provided with a water outlet connecting flange.

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

firstly, water flow is designed to be divided through a multi-channel pipe, the divided water flow is filtered through a filter element pipe, insoluble particles in the water flow are purified and filtered, the insoluble particles cannot be deposited in a check valve, and the water flow is further filtered and purified through a water outlet pipe-multi-channel pipe (filter element pipe) design.

Meanwhile, the metal filter cover net on the filter cover component can further intercept the particles in the water flow. When the filter element pipe loses the filtering effect, the metal filter cover net plays a secondary protection role. The device is effectively applied to the pipeline for conveying purified water, and effectively avoids the pollution of dirt in the pipeline easily in the process of conveying the purified water.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a multi-channel tube and a filter element tube according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a filter element tube according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a filter housing assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a snap ring according to an embodiment of the present invention;

FIG. 6 is a diagram showing the positional relationship between the flow paths and the filter element tubes in the multi-flow path tube according to the embodiment of the present invention;

fig. 7 is a schematic diagram of a partially enlarged structure of the portion a in fig. 6 according to the embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 to 7, a check valve includes a check valve body 1, wherein the check valve body 1 is a conventional check valve body disclosed in the prior art, and the main structure of the check valve body includes a valve plate and a control rod for controlling the valve plate to open and close. The specific structure and working principle of the check valve body 1 disclosed in the present invention can be known to those skilled in the art by referring to technical manuals and technical dictionaries.

The utility model discloses an improvement point lies in:

the left end of the check valve body 1 is communicated with a water inlet pipe (not marked in the figure), and the right end of the check valve body 1 is communicated with a water outlet pipe (not marked in the figure);

the water inlet pipe and the water outlet pipe are both communicated with a multi-runner pipe 11, and the multi-runner pipe 11 and the corresponding water inlet pipe and the corresponding water outlet pipe are integrally formed; the multi-channel pipe 11 is located at the middle part of the corresponding inlet pipe and outlet pipe.

The multi-runner pipe 11 may be built-up welded in the middle of the water inlet pipe and the water outlet pipe (the water inlet pipe and the water outlet pipe are pre-formed in two sections).

Each multi-channel pipe 11 is provided with a plurality of channels 111 (the channels 111 are cylindrical), and the channels 111 are sealed. When the water flows through the multi-channel pipe 11, the water is divided and filtered by the channel 111. Both ends of the flow passage 111 are provided with flow passage openings, the multi-flow passage pipe 11 is communicated with the corresponding water inlet pipe and the corresponding water outlet pipe through the flow passage openings, water flow enters the flow passage 111 from the water inlet end of the water inlet pipe through the flow passage openings and then flows into the check valve body 1 through the flow passage openings, and similarly, water flow enters the flow passage 111 from the water inlet end of the water outlet pipe through the flow passage openings and then flows out of the water outlet pipe through the flow passage openings.

Each of the flow passages 111 is fitted with a filter element tube 112, and the length of the long tube of the filter element tube 112 is equal to the length of the flow passage 111. The outer diameter of the cartridge tube 112 is smaller than the inner diameter of the flow passage 111, and the cartridge tube 112 includes a cartridge (cartridge has a filtering function).

The filter element tube 112 is assembled with the flow channel 111 as follows:

clamping rings 1121 are connected to the end portions of the two ends of the filter element, each clamping ring 1121 is provided with an annular clamping groove 11211, and the wall of the inner cavity of the flow channel 111 is provided with an annular flange 1111 matched with the annular clamping groove 11211; the annular flanges 1111 are located at the flow passage openings at the two ends of the flow passage 111, and the filter element pipe 112 is assembled in the flow passage 111 by the cooperation of the annular flanges 1111 and the annular clamping grooves 11211, and simultaneously, the water flow is kept to only pass through the flow passage 111.

In order to increase the filtering effect, the filter cover assembly 14 is assembled in the inlet pipe and the outlet pipe, and the filter cover assembly 14 on the inlet pipe is assembled at the outlet end of the multi-channel pipe 11, namely the filter cover assembly 14 at the position is positioned at the right side of the multi-channel pipe 11 at the position.

Similarly, the filter cover assembly 14 on the outlet pipe is assembled at the water inlet end of the multi-channel pipe 11, that is, the filter cover assembly 14 on the part is positioned on the left side of the multi-channel pipe 11 on the part.

The specific construction of the filter sock assembly 14 is as follows:

the filter housing assembly 14 includes a housing ring body 141 (in a ring shape), and a metal filter housing net is fixedly connected to the housing ring body 141.

The top and the bottom of the cover ring body 141 are both in threaded connection with the corresponding water inlet pipe and the water outlet pipe through bolts 1411; specifically, the pipe bodies of the water inlet pipe and the water outlet pipe are provided with screw holes matched with the bolts 1411, and the bolts 1411 are screwed with the screw holes and then screwed with the cover ring body 141 (no water leakage is caused by adopting a threaded connection mode). The outer side wall of each cover ring body 141 is tightly attached to the inner pipe walls of the corresponding water inlet pipe and the corresponding water outlet pipe.

The metal filter cover net is provided with a concave surface and a convex surface (the shape of the metal filter cover net is similar to a bowl shape); the concave surfaces on the metal filter cover net face the water inlet pipe. Namely, the concave surface of the metal filter cover net positioned on the water inlet pipe faces to the left, and the concave surface of the metal filter cover net positioned on the water outlet pipe faces to the left.

Adopt the design of above-mentioned metal filter cover net and the design of position orientation aim at:

the sunken face has certain surface tension to and certain accommodation space, rivers are difficult to cause the deformation through the sunken face, and simultaneously, the sunken face can hold object impurity.

The pipe orifice of the water inlet pipe is provided with a water inlet connecting flange 12 (the water inlet connecting flange 12 is used for connecting pipelines); the mouth of the outlet pipe is fitted with an outlet connection flange 13 (the outlet connection flange 13 is used for connection between pipes).

The working principle and the process are as follows:

firstly, the check valve body 1 is opened, water flows into the multi-channel pipe 11 on the position of the water inlet pipe from the water inlet pipe, enters the flow channel 111 from the flow channel opening on the left side, enters the filter element in the filter element pipe 112 for filtering, the filtered water enters the metal filter cover net of the filter cover component 14 on the right side for filtering after being primarily purified, and large particles are filtered by the filter element and are separated by the metal filter cover net for purification.

Water flow enters the check valve body 1 and cannot contain insoluble large-particle substances, the water flow enters the water outlet pipe from the check valve body 1, and the water flow is sequentially filtered by the metal filter cover net barrier and the filter element in the filter element pipe 112, so that the rubber particle discharge of the aging and delamination of the check valve in the using process is prevented from causing water pollution.

The device component design has the advantages that;

firstly, the water flow is designed to be divided through the multi-channel pipe 11, the divided water flow is filtered through the filter element pipe 112, insoluble particles in the water flow are purified and filtered, the insoluble particles cannot be deposited in the check valve, and the water flow is further filtered and purified by adopting the design of the water outlet pipe and the multi-channel pipe 11 (the filter element pipe 112).

Meanwhile, the particles in the water flow can be further trapped by the metal filter cover net on the filter cover assembly 14. When the filter element pipe 112 loses the filtering effect, the metal filter cover net plays a secondary protection role. The device is effectively applied to the pipeline for conveying purified water, and effectively avoids the pollution of dirt in the pipeline easily in the process of conveying the purified water.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A check valve is characterized by comprising a check valve body, wherein both ends of the check valve body are communicated with a water inlet pipe and a water outlet pipe;

the water inlet pipe and the water outlet pipe are both communicated with a multi-runner pipe, and the multi-runner pipe and the corresponding water inlet pipe and the corresponding water outlet pipe are integrally formed;

the multi-channel pipe is positioned in the middle of the corresponding water inlet pipe and the water outlet pipe;

the multi-runner pipe is provided with a plurality of runners, filter element pipes are assembled in the runners, each filter element pipe comprises a filter element, the end parts of the two ends of each filter element are connected with clamping rings, each clamping ring is provided with an annular clamping groove, and the wall of an inner cavity of each runner is provided with an annular flange matched with the annular clamping groove;

the filter cover components are arranged in the water inlet pipe and the water outlet pipe, and the filter cover components positioned on the water inlet pipe are arranged at the water outlet end of the multi-channel pipe; the filter cover component positioned on the water outlet pipe is assembled at the water inlet end of the multi-runner pipe.

2. The check valve of claim 1, wherein the flow passage is cylindrical, the outer diameter of the filter element tube is smaller than the inner diameter of the flow passage, the two ends of the flow passage are provided with flow passage openings, and the multi-flow passage tube is communicated with the corresponding water inlet pipe and the water outlet pipe through the flow passage openings;

the annular flange is positioned at the runner port parts at the two ends of the runner.

3. The check valve of claim 2, wherein the filter cage assembly comprises a cage body to which a metal filter cage mesh is fixedly attached.

4. The check valve of claim 3, wherein the top and bottom of the shroud ring body are each threadably connected to a corresponding inlet and outlet pipe by bolts.

5. The check valve of claim 4, wherein the body of the inlet pipe and the outlet pipe is provided with a screw hole matched with the bolt, and the bolt is screwed with the screw hole and then screwed with the cover ring body.

6. The check valve of claim 4, wherein the outer sidewall of the shroud ring body conforms closely to the inner pipe walls of the corresponding inlet and outlet pipes.

7. The check valve of claim 6, wherein the metallic filter cage mesh has a concave face and a convex face;

the sunken surfaces on the metal filter cover net face the water inlet pipe.

8. The check valve of claim 1, wherein the orifice of the inlet pipe is fitted with an inlet connection flange;

and the pipe orifice of the water outlet pipe is provided with a water outlet connecting flange.

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