Novel check valve

Abstract

The utility model relates to the technical field of check valves, and discloses a novel check valve which comprises a pipeline and further comprises a water inlet and a water outlet which are formed in the two ends of the pipeline, a sleeve is fixed to the top of the pipeline, a first connecting ring is fixed to the outer side of the sleeve, a first sealing cover is arranged at the top of the first connecting ring, and a check mechanism is arranged in the pipeline. By arranging the filter plate, impurities in water flow can be filtered when the water flow passes through the valve body, the situation that the impurities block the check valve and enable the check valve to be normally opened or closed is avoided, normal flowing of the water flow cannot be affected, and a sealing component of the check valve cannot be abraded or damaged; the sealing performance of the valve body is improved, leakage or other related problems cannot be caused, impurities filtered out of water can be cleaned in time by arranging the cleaning mechanism, the situation that too much impurities are accumulated, and a sealing piece of the valve body is damaged is avoided, and the service life of the valve body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve technical field, concretely is a new check valve. BACKGROUND

[0002] Check valve is also called as one-way valve, backflow valve, back pressure valve, is a kind of valve that is opened or closed valve disc automatically by medium itself flow, prevents the backflow of medium.It is an automatic valve, main function is to prevent the backflow of medium, prevent pump and drive motor reverse rotation, and the release of container medium.The working principle of check valve is when medium flows in the specified direction, valve disc is pushed open under the action of medium pressure, and medium passes;When medium attempts to backflow, valve disc is pressed on valve seat under the impetus of fluid pressure, to close valve, prevent the backflow of medium.Check valve is widely used in various industrial fields, such as chemical industry, petroleum, natural gas, water treatment, food processing etc.

[0003] Because part of impurities is contained in water, when water flow delivery passes through check valve, impurities in water can possibly block check valve, make it unable to open or close normally, this can influence the normal flow of water flow, even possibly cause equipment damage, impurities can possibly wear or damage sealing parts of check valve, cause it to prevent backflow effectively, this can possibly cause leakage or other related problems, simultaneously, now part of check valve installs impurity filtering structure in valve, but after impurity filtration, it cannot be cleaned in time, makes impurities always accumulate in valve, after long-term accumulation, too many impurities, also can cause damage to sealing element of valve body. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a new check valve to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a new check valve, including pipeline, still including:

[0006] Water inlet and water outlet are arranged at the both ends of the pipeline, the top of the pipeline is fixed with sleeve pipe, the outer side of the sleeve pipe is fixed with first connecting ring, the top of the first connecting ring is provided with first cover, the inner wall of the first connecting ring and first cover is all connected with first bolt in screw thread, the outer side of the first bolt is connected with first nut in screw thread, the inside of the pipeline is provided with check mechanism for controlling water flow, the bottom of the pipeline is provided with cleaning mechanism for treating impurities.

[0007] Preferably, the check mechanism includes a guide plate fixed to the inner wall of the pipeline, the inner wall of the guide plate is provided with a first positioning hole and a second positioning hole.

[0008] Preferably, the inner wall of the second positioning hole is clamped with a filter plate, the top of the filter plate is fixed with a connecting rod, the top end of the connecting rod is fixed with a sealing plate, the sealing plate is clamped on the inner wall of the first positioning hole, and the bottom of the sealing plate is fixed with a sealing gasket.

[0009] Preferably, the top of the sealing plate is fixed with a sliding rod, the sliding rod is slidingly connected to the inner wall of the pipeline, the top of the sliding rod is fixed with a moving plate, the top of the moving plate is fixed with a spring, and the spring is fixed to the bottom of the first cover.

[0010] Preferably, the outer side of the moving plate is fixed with a sealing ring, and the sealing ring is slidingly connected to the inner wall of the sleeve.

[0011] Preferably, the cleaning mechanism comprises a discharge pipe communicated with the inner wall of the pipeline, a second connecting ring is fixed to the outer side of the discharge pipe, a second cover is arranged at the bottom of the second connecting ring, and a sealing groove is formed in the top of the second cover.

[0012] Preferably, the inner walls of the second connecting ring and the second cover are both screw-connected with a second bolt, and the outer side of the second bolt is screw-connected with a second nut.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The filter plate is arranged to filter impurities in water flow when the water flow passes through the valve body, so that the impurities cannot block the check valve, the check valve cannot be normally opened or closed, the normal flow of water is not affected, the equipment is prevented from being damaged, the sealing parts of the check valve are prevented from being abraded or damaged, the sealing property of the valve body is improved, leakage or other related problems are prevented, the cleaning mechanism is arranged to clean the filtered impurities in water in time, the impurities are prevented from being accumulated too much to damage the sealing parts of the valve body, and the service life of the valve body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structure schematic view of a preferred embodiment of the novel check valve provided by the utility model;

[0016] Figure 2 A structure schematic view of the pipeline inside provided by the utility model;

[0017] Figure 3 A structure schematic view of the check mechanism provided by the utility model;

[0018] Figure 4 A structure schematic view of the cleaning mechanism provided by the utility model.

[0019] In the figure: 1, pipeline; 2, water inlet; 3, water outlet; 4, sleeve; 5, first connecting ring; 6, first cover; 7, first bolt; 8, first nut; 9, check mechanism; 91, guide plate; 92, first positioning hole; 93, second positioning hole; 94, filter plate; 95, connecting rod; 96, sealing plate; 97, sealing gasket; 98, sliding rod; 99, moving plate; 910, spring; 911, sealing ring; 10, cleaning mechanism; 101, discharge pipe; 102, second connecting ring; 103, second cover; 104, sealing groove; 105, second bolt; 106, second nut. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4 As shown in the figure, a new check valve, comprising a pipeline 1, by setting the pipeline 1 can be water delivery; also includes the water inlet 2 and water outlet 3 set at both ends of the pipeline 1, by setting the water inlet 2 can facilitate the water into the pipeline 1, by setting the water outlet 3 can facilitate the water discharge pipeline 1; the top of the pipeline 1 is fixed with sleeve 4, by setting the sleeve 4 can be convenient for spring 910 in its internal telescopic; the outer side of sleeve 4 is fixed with first connecting ring 5, the top of first connecting ring 5 is provided with first cover 6, by setting first connecting ring 5 and first cover 6 can seal sleeve 4; the inner wall of first connecting ring 5 and first cover 6 is all screwed with first bolt 7, by setting first bolt 7 can be connected to first connecting ring 5 and first cover 6; the outer side of first bolt 7 is screwed with first nut 8, by setting first nut 8 can make first connecting ring 5 and first cover 6 connected after locking and fixing, first connecting ring 5 and first cover 6 between the leakage prevention washer; the inside of pipeline 1 is provided with check mechanism 9 for controlling water flow, by setting check mechanism 9 can be convenient for water delivery, prevent water reverse; the bottom of pipeline 1 is provided with cleaning mechanism 10 for treating impurities, by setting cleaning mechanism 10 can clean the impurities of water filtration.

[0022] Please refer to Figure 3As shown, the check mechanism 9 includes a guide plate 91 fixed to the inner wall of the pipeline 1, by setting the guide plate 91 can facilitate the water into the pipeline 1, and then smoothly from the water outlet 3; the inner wall of the guide plate 91 is provided with a first positioning hole 92 and a second positioning hole 93, by setting the first positioning hole 92 can facilitate the sealing plate 96 and the first positioning hole 92 is connected, by setting the second positioning hole 93 can facilitate the filter plate 94 and the first positioning hole 92 is connected; the inner wall of the second positioning hole 93 is connected with the filter plate 94, by setting the filter plate 94 can filter the impurities in the water; the top of the filter plate 94 is fixed with a connecting rod 95, by setting the connecting rod 95 can connect the filter plate 94 and the sealing plate 96; the top of the connecting rod 95 is fixed with a sealing plate 96, by setting the sealing plate 96 can seal the first positioning hole 92; the sealing plate 96 is connected to the inner wall of the first positioning hole 92, the bottom of the sealing plate 96 is fixed with a sealing gasket 97, by setting the sealing gasket 97 can improve the sealing effect; the top of the sealing plate 96 is fixed with a sliding rod 98, the sliding rod 98 is slidingly connected to the inner wall of the pipeline 1, by setting the sliding rod 98 can connect the moving plate 99 and the sealing plate 96, the top of the sliding rod 98 is fixed with a moving plate 99, by setting the moving plate 99 can extrude the spring 910; the top of the moving plate 99 is fixed with a spring 910, by setting the spring 910 can make the moving plate 99 move back after the spring force; the spring 910 is fixed to the bottom of the first cover 6; the outer side of the moving plate 99 is fixed with a sealing ring 911, the sealing ring 911 is slidingly connected to the inner wall of the sleeve 4, by setting the sealing ring 911 can improve the sealing effect of the moving plate 99 when moving in the sleeve 4.

[0023] Please refer to Figure 4 As shown, the cleaning mechanism 10 includes a discharge pipe 101 connected to the inner wall of the pipeline 1, by setting the discharge pipe 101 can facilitate the discharge of the impurities filtered by water; the outer side of the discharge pipe 101 is fixed with a second connecting ring 102, the bottom of the second connecting ring 102 is provided with a second cover 103, by setting the second connecting ring 102 and the second cover 103 can seal the discharge pipe 101; the top of the second cover 103 is provided with a sealing groove 104, by setting the sealing groove 104 can place the leakage prevention gasket; the inner wall of the second connecting ring 102 and the second cover 103 is threadedly connected with a second screw 105, by setting the second screw 105 can connect the second connecting ring 102 and the second cover 103; the outer side of the second screw 105 is threadedly connected with a second nut 106, by setting the second nut 106 can be fixed after the second connecting ring 102 and the second cover 103 are connected.

[0024] Working principle: water flow from pipe 1 inlet 2, through the water pressure seal plate 96 from the first positioning hole 92, seal plate 96 up to move the slide rod 98, and then drive the moving plate 99 up extrusion spring 910, wherein the water pressure is greater than the spring force of spring 910, seal plate 96 up at the same time, drive connecting rod 95, and then drive the filter plate 94 and the second positioning hole 93 for the joint, at this time, the water flow through the filter plate 94 after filtration, from the water outlet 3, when the water flow stops conveying, spring 910 without the water pressure of the extrusion, through the elastic force drive moving plate 99 reset, and then drive the seal plate 96 reset and the first positioning hole 92 for the joint, so that the pipe 1 seal, water flow will not backflow, finally loosen the second nut 106 and the second bolt 105, open the second cover 103, the filter plate 94 filter out the impurities from the discharge pipe 101 take out.

[0025] It should be noted that in this document, the terms "first" and "second" and the like are used merely as identifiers to distinguish between two entities or operations from each other, and are not necessarily required or implied to be in any physical or logical order or sequence. Also, the terms "comprise", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an "comprising" statement is not excluded from a process, method, article, or apparatus that includes the element, even when the same process, method, article, or apparatus also includes other identical elements.

[0026] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A new type of check valve comprising a pipe (1), characterized in that, Also include: The water inlet (2) and outlet (3) are arranged at both ends of the pipeline (1), the top of the pipeline (1) is fixed with a sleeve (4), the outer side of the sleeve (4) is fixed with a first connecting ring (5), the top of the first connecting ring (5) is provided with a first cover (6), the inner walls of the first connecting ring (5) and the first cover (6) are threadedly connected with first bolts (7), the outer sides of the first bolts (7) are threadedly connected with first nuts (8), the inside of the pipeline (1) is provided with a check mechanism (9) for controlling water flow, and the bottom of the pipeline (1) is provided with a cleaning mechanism (10) for treating impurities.

2. A new type check valve according to claim 1, characterized in that: The check mechanism (9) comprises a guide plate (91) fixed to the inner wall of the pipeline (1), and the inner wall of the guide plate (91) is provided with a first positioning hole (92) and a second positioning hole (93).

3. A new type check valve according to claim 2, characterized in that: The inner wall of the second positioning hole (93) is clamped with a filter plate (94), the top of the filter plate (94) is fixed with a connecting rod (95), the top end of the connecting rod (95) is fixed with a sealing plate (96), the sealing plate (96) is clamped on the inner wall of the first positioning hole (92), and the bottom of the sealing plate (96) is fixed with a sealing gasket (97).

4. A new type check valve according to claim 3, characterized in that: The top of the sealing plate (96) is fixed with a sliding rod (98), the sliding rod (98) is slidingly connected to the inner wall of the pipeline (1), the top of the sliding rod (98) is fixed with a moving plate (99), the top of the moving plate (99) is fixed with a spring (910), and the spring (910) is fixed to the bottom of the first cover (6).

5. A new type check valve according to claim 4, characterized in that: The outer side of the moving plate (99) is fixed with a sealing ring (911), and the sealing ring (911) is slidingly connected to the inner wall of the sleeve (4).

6. A new type check valve according to claim 1, characterized in that: The cleaning mechanism (10) comprises a discharge pipe (101) communicated with the inner wall of the pipeline (1), the outer side of the discharge pipe (101) is fixed with a second connecting ring (102), the bottom of the second connecting ring (102) is provided with a second cover (103), and the top of the second cover (103) is provided with a sealing groove (104).

7. A new type check valve according to claim 6, characterized in that: The inner walls of the second connecting ring (102) and the second cover (103) are threadedly connected with second bolts (105), and the outer sides of the second bolts (105) are threadedly connected with second nuts (106).

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