CN218625539U - One-way valve - Google Patents

Abstract

The utility model belongs to the technical field of the check valve, specifically disclose a check valve, including first valve body and second valve body, the outside cover of second valve body is equipped with first valve body, first valve body adopts threaded connection with the second valve body, first valve body top is provided with the valve body entry, second valve body bottom is provided with the valve body export, the symmetry in position that the side of first valve body is close to the bottom is provided with the limiting frame, limiting frame one side is provided with the swivel nut, the swivel nut internal thread is connected with the screw rod, the one end that each screw rod is close to the second valve body all is provided with the clamp splice, be provided with the restriction lever on the clamp splice, the restriction lever passes the limiting frame and connects the limit splice, the clamping face of clamp splice is the arcwall face, the clamp splice is located the second valve body below and restricts the first valve body; the utility model discloses a with passing through threaded connection between first valve body and the second valve body, through the first valve body of clamp splice restriction, simple structure, spare part is few, easy dismounting, and the adaptation occasion is extensive, and life is longer, and spare and accessory parts are easily changed.

Description

One-way valve

Technical Field

The utility model relates to a check valve technical field specifically is a check valve.

Background

A check valve is a valve for controlling the direction of fluid flow, and fluid passing through the check valve is allowed to flow only in one direction.

However, in the using process, because the one-way valve has poor anti-corrosion capability to corrosive fluid and short service life, so that parts such as a valve core or a spring of the one-way valve may be damaged after being used for a period of time, and the parts need to be replaced or maintained, however, the existing one-way valve is usually integrated for ensuring the sealing performance of the one-way valve, and the whole one-way valve needs to be replaced after being damaged or connected by adopting flange bolts, but all the one-way valves need to be operated by adopting tools and cannot be quickly disassembled and assembled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve to solve the problem that current check valve is not convenient for maintain.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a check valve, including first valve body and second valve body, the outside cover of second valve body is equipped with first valve body, first valve body adopts threaded connection with the second valve body, first valve body top is provided with the valve body entry, second valve body bottom is provided with the valve body export, the symmetry that the first valve body side is close to the bottom is provided with the restriction frame, restriction frame one side is provided with the swivel nut, swivel nut female connection has the screw rod, the one end that every screw rod is close to the second valve body all is provided with the clamp splice, and the one end that the clamp splice was kept away from to every screw rod is provided with the knob, be provided with the restriction pole on the clamp splice, the restriction pole passes the restriction frame and is connected with the restriction piece, the clamping face of clamp splice is the arcwall face, the clamp splice is located the first valve body of second valve body below restriction.

Preferably, the mounting groove has been seted up at first valve body top, and the mounting groove below is provided with the check groove, and the check groove below is provided with the spring groove.

Preferably, a non-return ring is arranged in the mounting groove, a return spring is arranged in the spring groove, and one end of the return spring extends into the non-return groove and is connected with a non-return steel ball.

Preferably, the back of the check ring abuts against the first valve body, one side of the check ring, which is close to the check groove, is provided with a ball groove matched with the check steel balls, and the check steel balls are embedded in the ball groove and are in sealing connection.

Preferably, the top of the second valve body is provided with a sealing ring outside the mounting groove, the inner side of the first valve body is provided with a sealing groove matched with the sealing ring, and the sealing ring is embedded in the sealing groove and is connected in a sealing manner.

Preferably, the check ring is made of engineering plastics.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a divide into first valve body and second valve body with the valve body, and through with passing through threaded connection between first valve body and the second valve body, and the clamp splice clamp through the setting is on the second valve body, restrict first valve body, prevent to lead to first valve body to appear rotation phenomenon such as not hard up because of vibrations in the use, made things convenient for the dismouting between first valve body and the second valve body, and demolish the back with first valve body alright directly maintain or change inside check ring, check steel ball and reset spring, it is very convenient to use, and the utility model discloses simple structure, spare part is few, easy dismounting, and the adaptation occasion is extensive, and life is longer, and spare part is easily changed.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the present invention;

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

fig. 4 is a schematic diagram of the explosion structure of the present invention.

In the figure: 1. a first valve body; 2. a valve body inlet; 3. a restraint frame; 4. an outlet of the valve body; 5. a clamping block; 6. a screw; 7. a threaded sleeve; 8. a knob; 9. a restraining bar; 10. a limiting block; 11. a second valve body; 12. a spring slot; 13. a return spring; 14. a check groove; 15. a non-return steel ball; 16. mounting grooves; 17. a check ring; 18. a sealing groove; 19. and (4) a sealing ring.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a check valve, including first valve body 1 and second valve body 11, 11 outside covers of second valve body are equipped with first valve body 1, first valve body 1 adopts threaded connection with second valve body 11, 1 top of first valve body is provided with valve body entry 2, 11 bottoms of second valve body are provided with valve body export 4, the symmetry in position that 1 side of first valve body is close to the bottom is provided with restriction frame 3, restriction frame 3 one side is provided with swivel nut 7, 7 threaded connection in the swivel nut has screw rod 6, the one end that every screw rod 6 is close to second valve body 11 all is provided with clamp splice 5, and the one end that clamp splice 5 was kept away from to every screw rod 6 is provided with knob 8, be provided with limiting rod 9 on the clamp splice 5, limiting rod 9 passes restriction frame 3 and is connected with limit splice 10, clamp splice 5's clamping face is the arcwall face, clamp splice 5 is located second valve body 11 below restriction first valve body 1.

Furthermore, a mounting groove 16 is formed in the top of the first valve body 1, a check groove 14 is formed below the mounting groove 16, and a spring groove 12 is formed below the check groove 14.

Further, a check ring 17 is arranged in the mounting groove 16, a return spring 13 is arranged in the spring groove 12, and one end of the return spring 13 extends into the check groove 14 and is connected with a check steel ball 15.

Furthermore, the back of the check ring 17 abuts against the first valve body 1, a ball groove matched with the check steel ball 15 is formed in one side, close to the check groove 14, of the check ring 17, and the check steel ball 15 is embedded in the ball groove and connected in a sealing mode.

Furthermore, a sealing ring 19 is arranged on the top of the second valve body 11 outside the mounting groove 16, a sealing groove 18 matched with the sealing ring 19 is arranged on the inner side of the first valve body 1, and the sealing ring 19 is embedded in the sealing groove 18 and is connected in a sealing manner.

Further, the check ring 17 is made of engineering plastics.

The working principle is as follows: during installation, the valve inlet 2 on the first valve body 1 is connected with a feeding pipeline, and the valve outlet 4 on the second valve body 11 is connected with a discharging pipeline.

In the using process, liquid phase material enters from the valve body inlet 2, the generated pressure presses the check steel ball 15 downwards, the check steel ball 15 presses the return spring 13 downwards, the return spring 13 contracts, the liquid phase material passes through the check groove 14 and the spring groove 12 and is discharged from the valve body outlet 4, when the liquid phase material stops inputting, the return spring 13 has no pressure rebound, the return spring 13 rebounds the check steel ball 15 to the ball groove of the check ring 17 to prevent the liquid phase material from flowing back,

need change or only need rotate knob 8 when maintaining inside spare part, make knob 8 drive screw rod 6 at the internal rotation of swivel nut 7, make screw rod 6 pull back clamp splice 5, make restriction lever 9 slide on restriction frame 3, pull back alright rotate first valve body 1 when clamp splice 5 follows second valve body 11 bottom, screw out first valve body 1 from second valve body 11, at this moment alright open second valve body 11, with check ring 17, check steel ball 15 and reset spring 13 spill, at this moment alright change the maintenance to inside spare part.

Change inside spare part and accomplish the back alright with first valve body 1 cover on second valve body 11, and with in the first valve body 1 of second valve body 11 screw in, alright make sealing ring 19 gomphosis in seal groove 18 behind the screw in bottom, then alright reverse rotation knob 8, make screw rod 6 push forward clamp splice 5, push away clamp splice 5 to second valve body 11 bottom and clip it, utilize clamp splice 5 can prevent to lead to first valve body 1 to appear rotation phenomenon such as not hard up because of vibrations in the use, the dismouting between first valve body 1 and the second valve body 11 has been made things convenient for.

The utility model discloses demolish first valve body 1 the back alright directly maintain or change inside non return ring 17, non return steel ball 15 and reset spring 13, it is very convenient to use, and the utility model discloses simple structure, spare part is few, easy dismounting, and the adaptation occasion is extensive, and life is longer, and spare and accessory part is easily changed.

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. A one-way valve characterized by: including first valve body (1) and second valve body (11), second valve body (11) outside cover is equipped with first valve body (1), first valve body (1) adopts threaded connection with second valve body (11), first valve body (1) top is provided with valve body entry (2), second valve body (11) bottom is provided with valve body export (4), the rigidity symmetry that first valve body (1) side is close to the bottom is provided with restriction frame (3), restriction frame (3) one side is provided with swivel nut (7), swivel nut (7) female connection has screw rod (6), the one end that every screw rod (6) are close to second valve body (11) all is provided with clamp splice (5), and the one end that clamp splice (5) were kept away from in every screw rod (6) is provided with knob (8), be provided with on clamp splice (5) restriction pole (9), restriction pole (9) pass limit clamp splice (3) and limit splice (10), and the clamping face of connecting splice (5) is the arcwall face, clamp splice (5) are located second valve body (11) below and limit first valve body (1).

2. A one-way valve according to claim 1, wherein: the valve is characterized in that a mounting groove (16) is formed in the top of the first valve body (1), a check groove (14) is formed below the mounting groove (16), and a spring groove (12) is formed below the check groove (14).

3. A one-way valve according to claim 2, wherein: a check ring (17) is arranged in the mounting groove (16), a return spring (13) is arranged in the spring groove (12), and one end of the return spring (13) extends into the check groove (14) and is connected with a check steel ball (15).

4. A one-way valve according to claim 3, wherein: the back of the check ring (17) abuts against the first valve body (1), one side, close to the check groove (14), of the check ring (17) is provided with a ball groove matched with the check steel ball (15), and the check steel ball (15) is embedded in the ball groove and connected in a sealing mode.

5. A one-way valve according to claim 1, wherein: the top of the second valve body (11) is provided with a sealing ring (19) on the outer side of the mounting groove (16), the inner side of the first valve body (1) is provided with a sealing groove (18) matched with the sealing ring (19), and the sealing ring (19) is embedded in the sealing groove (18) and is in sealing connection.

6. A check valve as in claim 3, wherein: the check ring (17) is made of engineering plastics.

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