CN217177541U - Micro-resistance slow-closing check valve - Google Patents

Abstract

The utility model discloses a micro resistance slow-closing check valve relates to valve technical field. The utility model provides a hinder check valve slowly, includes the valve main part, and water inlet and delivery port have been seted up respectively to the valve main part left and right sides, and the valve main part left and right sides is fixedly connected with inlet tube and outlet pipe respectively, and delivery port inner wall fixedly connected with fixed strip, fixed strip left side fixedly connected with slip cap post, slip cap post right side inner wall fixedly connected with elastic component, elastic component left side fixedly connected with slip post, slip post left side fixedly connected with valve plate. The utility model discloses a setting of non return structure, the slip post passes through the elastic component and slides in slip cap post is inside, and the shrink and the extension of elastic component all progressively go on, and the process of progressively shrinking is promptly to the microresistance of rivers under hydraulic effect, and the process of progressively extending is promptly slowly closed the process when losing the water pressure effect, and this device has realized that same part has microresistance slowly closes dual function's effect, simple structure, and the cost of manufacture is low.

Description

Micro-resistance slow-closing check valve

Technical Field

The utility model relates to the technical field of valves, specifically a little hinders slow-closing check valve.

Background

The micro-resistance slow-closing check valve is also called a check valve and is used for preventing media in the pipeline from flowing backwards. The valve, in which the opening and closing member is automatically opened or closed by the flow and force of the medium to prevent the medium from flowing backwards, is called a check valve. The check valve belongs to the automatic valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to one direction to prevent the accident. Is suitable for clean media, and is not suitable for media containing solid particles and with larger viscosity.

The micro-resistance and the slow closure of the existing micro-resistance slow closure check valve are separated and respectively borne on two parts, the interior of the micro-resistance slow closure check valve is complex, the manufacturing cost is also high, therefore the utility model provides a novel micro-resistance slow closure check valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a micro-resistance slowly closes check valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hinder check valve slowly, includes the valve main part, and water inlet and delivery port have been seted up respectively to the valve main part left and right sides, and the valve main part left and right sides is fixedly connected with inlet tube and outlet pipe respectively, and delivery port inner wall fixedly connected with fixed strip, fixed strip left side fixedly connected with slip cap post, slip cap post right side inner wall fixedly connected with elastic component, elastic component left side fixedly connected with slip post, slip post left side fixedly connected with valve plate.

Furthermore, the water inlet pipe is matched with the water inlet, and the water outlet pipe is matched with the water outlet.

Furthermore, the outer sides of the water inlet pipe and the water outlet pipe are fixedly connected with flange plates, and a plurality of through holes are arranged on the left side and the right side of each flange plate in a penetrating mode.

Furthermore, sliding connection between slip post outer wall and the slip cover post inner wall, and be provided with the sealing washer between slip post and the slip cover post.

Further, the inner wall of the left side of the valve body is fixedly connected with a sealing gasket, and the valve plate is matched with the sealing gasket.

Further, the left side of the fixing strip is fixedly connected with a reinforcing plate, and the inner side of the reinforcing plate is fixedly connected with the outer wall of the sliding sleeve column.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) this hinder check valve slowly closes, through the setting of non return structure, the slip post passes through the elastic component and slides in slip sleeve post inside, and the shrink and the extension of elastic component all progressively go on, and the process of progressively shrinking is promptly to the hinder a little of rivers under hydraulic effect, and the process of progressively extending is promptly slowly closed the process when losing the water pressure effect, and this device has realized that same part has the effect of hindering slowly closing the dual function a little, simple structure, and the cost of manufacture is low.

(2) This hinder check valve slowly closes a little through the setting of gusset plate, has strengthened the fixed connection between slip sleeve post and the fixed strip, with the pressure dispersion of slip sleeve post to the fixed strip, improves the biggest water pressure that whole non return structure can bear, has promoted this hinder check valve's slowly closed life a little.

Drawings

FIG. 1 is a schematic view of the front top axial view structure of the present invention;

fig. 2 is a schematic view of the structure of the water outlet of the utility model;

FIG. 3 is a schematic view of the water inlet structure of the present invention;

fig. 4 is a schematic view of the sectional view of the internal check structure of the present invention.

In the figure: 1. a valve body; 2. a water inlet pipe; 3. a water outlet pipe; 4. a flange plate; 401. perforating; 5. a water inlet; 6. a water outlet; 7. a gasket; 8. a valve plate; 9. a sliding post; 10. an elastic member; 11. sliding the sleeve column; 12. a fixing strip; 13. and a reinforcing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

As shown in fig. 1-4, the utility model provides a technical solution: a micro-resistance slow-closing check valve comprises a valve main body 1, wherein the left side and the right side of the valve main body 1 are respectively provided with a water inlet 5 and a water outlet 6, the water inlet 5 and the water outlet 6 are both circular notches, the left side and the right side of the valve main body 1 are respectively and fixedly connected with a water inlet pipe 2 and a water outlet pipe 3, the water inlet pipe 2 and the water outlet pipe 3 are both circular pipelines, the water inlet pipe 2 is matched with the water inlet 5, the water outlet pipe 3 is matched with the water outlet 6, the inner wall of the water outlet 6 is fixedly connected with a fixing strip 12, the fixing strip 12 is integrally formed by three square columns, the included angles of the three square columns are one hundred and twenty degrees, the lengths of the three square columns are equal, the outer vertexes of the three square columns form an equilateral triangle, the left side of the fixing strip 12 is fixedly connected with a non-return structure, it needs to be noted that the water inlet pipe 2 is communicated with the inside of the valve main body 1 through the water inlet 5, and the water outlet pipe 3 is communicated with the inside of the valve main body 1 through the water outlet 6.

Firstly, as for the non-return structure, it should be further clear that the non-return structure includes a sliding sleeve column 11, a cylindrical through groove is formed on the left side of the sliding sleeve column 11, the outer wall of the right side of the sliding sleeve column 11 is fixedly connected to the left side of a fixing strip 12, that is, the sliding sleeve column 11 is fixedly connected to the valve main body 1 through the fixing strip 12, the inner wall of the right side of the sliding sleeve column 11 is fixedly connected to an elastic member 10, the left side of the elastic member 10 is fixedly connected to a sliding column 9, the sliding column 9 is pushed by water pressure to move towards the direction close to the sliding sleeve column 11, the elastic member 10 is in a contracted state, when the water pressure is lost, the contracted elastic member 10 extrudes the sliding column 9 to the left until the original position is recovered, the outer wall of the sliding column 9 is slidably connected to the inner wall of the sliding sleeve column 11, a sealing ring is arranged between the sliding column 9 and the sliding sleeve column 11, the left side of the sliding column 9 is fixedly connected to a valve plate 8, by the non-return structure, the sliding column 9 slides in the sliding sleeve column 11 through the elastic part 10, the contraction and the extension of the elastic part 10 are performed gradually, the gradual contraction process under the action of water pressure is the micro resistance of water flow, and the gradual extension process when the water pressure action is lost is the slow closing process.

Secondly, to inlet tube 2 and outlet pipe 3, we need further understand that, the equal fixedly connected with ring flange 4 in inlet tube 2 and the outlet pipe 3 outside, and the ring flange 4 left and right sides runs through and is provided with a plurality of perforation 401, and ring flange 4 and the perforation 401 of seting up on it are used for being connected this micro resistance slow-closure check valve with the pipeline.

Furthermore, to the inside of the valve main body 1, we should further understand that the inside of the valve main body 1 is hollow, the inner wall of the left side of the valve main body 1 is fixedly connected with a sealing gasket 7, the valve plate 8 is matched with the sealing gasket 7, the valve plate 8 is located at the leftmost side in the normal state, and the elastic part 10 has a force of extruding leftwards on the valve plate 8, so that the valve plate 8 is attached to the sealing gasket 7, and the water inside the valve main body 1 is blocked from flowing back to the water inlet pipe 2 through the water inlet 5.

Finally, as for the fixing strip 12, it should be further recognized that a reinforcing plate 13 is fixedly connected to the left side of the fixing strip 12, and the inner side of the reinforcing plate 13 is fixedly connected to the outer wall of the sliding sleeve column 11, it should be noted that the fixing connection between the sliding sleeve column 11 and the fixing strip 12 is strengthened by the arrangement of the reinforcing plate 13, the pressure of the sliding sleeve column 11 on the fixing strip 12 is dispersed, the maximum water pressure which can be borne by the whole non-return structure is improved, and the service life of the micro-resistance slow-closing check valve is prolonged.

In this embodiment, when the micro-resistance slow-closing check valve is used for transporting a medium, the apparatus is first connected to a transmission pipeline through the flange 4 and the through hole 401 outside the water inlet pipe 2 and the water outlet pipe 3, the water inlet pipe 2 faces the medium entering direction of the transmission pipeline, the water outlet pipe 3 faces the medium exiting direction of the transmission pipeline, the medium starts to be transmitted, the medium reaches the water inlet 5 through the water inlet pipe 2 to generate a pressure on the valve plate 8, the pressure causes the valve plate 8 to move rightwards, the valve plate 8 drives the sliding column 9 to move rightwards, because the sliding column 11 is fixed relative to the valve body 1, the sliding column 9 generates a pressure on the elastic member 10 to contract, the medium loses the obstruction of the valve plate 8 and enters the inside of the valve body 1, and enters the right side of the valve plate 8 through the outer ring space of the valve plate 8 inside the valve body 1, and then enters the water outlet pipe 3 through the water outlet 6, when the backflow phenomenon occurs, the valve plate 8 loses the water pressure on the left side, and then moves leftwards under the action of the elastic piece 10, and finally reaches the position of the sealing gasket 7 to prevent the backflow medium from flowing back to the water inlet pipe 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a hinder check valve slowly, includes valve body (1), water inlet (5) and delivery port (6) have been seted up respectively to valve body (1) left and right sides, and valve body (1) left and right sides is fixedly connected with inlet tube (2) and outlet pipe (3) respectively, its characterized in that: the water outlet (6) inner wall fixedly connected with fixed strip (12), fixed strip (12) left side fixedly connected with slip cap post (11), slip cap post (11) right side inner wall fixedly connected with elastic component (10), elastic component (10) left side fixedly connected with slip post (9), slip post (9) left side fixedly connected with valve plate (8).

2. The micro-resistance slow-closing check valve according to claim 1, characterized in that: the water inlet pipe (2) is matched with the water inlet (5), and the water outlet pipe (3) is matched with the water outlet (6).

3. The micro-resistance slow-closing check valve according to claim 1, characterized in that: the equal fixedly connected with ring flange (4) in inlet tube (2) and outlet pipe (3) outside, the ring flange (4) left and right sides is run through and is provided with a plurality of perforation (401).

4. The micro-resistance slow-closing check valve according to claim 1, characterized in that: the outer wall of the sliding column (9) is connected with the inner wall of the sliding sleeve column (11) in a sliding mode, and a sealing ring is arranged between the sliding column (9) and the sliding sleeve column (11).

5. The micro-resistance slow-closing check valve according to claim 1, characterized in that: valve main part (1) left side inner wall fixedly connected with seals up (7), valve plate (8) and sealed pad (7) looks adaptation.

6. The micro-resistance slow-closing check valve according to claim 1, characterized in that: the left side of the fixing strip (12) is also fixedly connected with a reinforcing plate (13), and the inner side of the reinforcing plate (13) is fixedly connected with the outer wall of the sliding sleeve column (11).

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