Split type quick-assembly check valve

Abstract

The utility model discloses a split type quick-assembly check valve which comprises a split type check valve body, and the left end and the right end of the split type check valve body are both connected with pipeline quick-assembly assemblies. The split type check valve comprises a right valve body and a left valve body; according to the technical scheme, the conical screw rods are arranged at the top positions of the two hoop rings, the two conical screw rods are screwed and locked through the inner threaded pipe, then the hoop rings are meshed with each other, compared with a hoop piece of a traditional split type check valve, the stability of the hoop piece is improved, a nut on a traditional lead screw is prevented from falling off from the end of the other hoop ring, and the service life of the hoop piece is prolonged. And the problem that the check valve is integrally disintegrated is solved. The external thread rings are arranged on the end openings in the two ends of the check valve respectively, the threaded sleeve is arranged on the water pipe to be installed, the water pipe can be driven to be inserted into the end openings in the two ends of the check valve through screwing and meshing between the external thread rings and the threaded sleeve, the situation that the water pipe and the end openings of the check valve are difficult in butt joint is avoided, and the butt joint installation speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve instrument technical field, concretely relates to split type quick -mounting check valve. BACKGROUND

[0002] Check valve is a kind of commonly used valve, mainly used to prevent medium backflow, or control the unidirectional flow of medium.And split type check valve is in the traditional integrated type basis and is divided into two valve bodies and valve core, two valve bodies wrap valve core, and valve body is locked and connected between the hoop, and its purpose is to facilitate the subsequent overhaul, maintenance operation of check valve.

[0003] However, the present inventor found that the present split type check valve is used for locking the hoop of two valve bodies, and there are some problems, since the hoop is divided into two halves, the one end of two halves is hinged, the other end of one half is rotatably provided with a screw rod, the screw rod is provided with a nut, and the other end of the other half is provided with a groove for the screw rod to pass through and be clamped, the nut is in contact with the side surface of the groove during rotation, thereby tightening the two halves of the hoop and locking the two valve bodies. However, since the nut and the groove sidewall of the hoop are relatively smooth, and the contact area is small, after locking, the check valve may vibrate due to "water hammer effect", so there is a problem of loosening of the hoop.

[0004] Secondly, the inlet and outlet ports of the check valve are often provided with water pipes, and the butt joint between the water pipe and the inlet and outlet ports needs to consider the coaxiality, the fit between the port and the pipe body, which leads to the difficulty of butt joint of the water pipe and the check valve, and greatly reduces the butt joint speed. INVENTION CONTENTS

[0005] The utility model discloses a technical scheme of split type quick -mounting check valve to solve the deficiencies in the background art. In order to solve the drawbacks and defects in the background art, the technical scheme has the following contents:

[0006] It comprises a split type check valve, and the left and right ends of the split type check valve are connected with pipe quick -mounting assemblies;The split type check valve comprises a right valve body and a left valve body, and the contact position periphery front side and rear side of the right valve body and the left valve body are respectively provided with front side hoop ring and rear side hoop ring, the bottom of the front side hoop ring and the rear side hoop ring is hinged, the top of the front side hoop ring and the rear side hoop ring is fixedly connected with conical screw rod, and the conical screw rod is rotatably sleeved with internal thread pipe on the periphery away from each other;

[0007] The inner chamber of the right valve body is fixedly connected with valve core, and the end face inside of the end away from each other of the right valve body and the left valve body is embedded with sealing ring;

[0008] The pipeline quick-mounting assembly comprises water pipes inserted into the inner cavities of the right valve body and the left valve body respectively, and sealing end covers fixed on the outer ring surfaces of the water pipes, the outer ring surfaces of the sealing end covers are rotationally provided with threaded sleeves, and the outer ring surfaces of the right valve body and the left valve body are fixedly connected with outer thread rings which are threadedly coupled with the inner cavities of the threaded sleeves.

[0009] As a preferred scheme of the utility model, the outer ring surfaces of the right valve body and the left valve body which are close to each other are provided with grooves for clamping the inner side surfaces of the front hoop ring and the rear hoop ring, and the inner side surfaces of the front hoop ring and the rear hoop ring are provided with sealing pads for sealing the end face gaps between the right valve body and the left valve body.

[0010] As a preferred scheme of the utility model, the bottom ends of the front hoop ring and the rear hoop ring are connected with a hinge for rotating the front hoop ring and the rear hoop ring along the hinge point of the bottom end.

[0011] As a preferred scheme of the utility model, the outer ring surfaces of the tapered screws are provided with threads which are adapted to the inner threads of the inner threaded pipes.

[0012] As a preferred scheme of the utility model, the outer ring surfaces of the inner threaded pipes are fixedly connected with 2-4 handles.

[0013] As a preferred scheme of the utility model, the vertical sections of the tapered screws are all frustoconical, and the diameter of the top end face of the tapered screw is smaller than the diameter of the bottom end face.

[0014] As a preferred scheme of the utility model, the side end faces of the right valve body and the left valve body which are away from each other are provided with sealing grooves for inlaying the sealing rings, and the end faces of the right valve body and the left valve body which are away from each other are respectively in contact with the side end faces of the sealing end covers which are close to each other.

[0015] As a preferred scheme of the utility model, the side end faces of the sealing end covers which are close to each other are provided with grooves for coupling and embedding the sealing rings.

[0016] As a preferred scheme of the utility model, the inner cavity side walls of the threaded sleeves are provided with threads which are adapted to the outer threads of the outer thread rings.

[0017] In the above technical scheme, the utility model provides the following technical effects and advantages:

[0018] 1. The traditional split type check valve hoop is improved, the top of the two hoop rings is provided with a tapered screw rod, and the two tapered screw rods are locked by using an internally threaded pipe, so that the hoop rings are engaged with each other, compared with the traditional split type check valve hoop, the stability is improved, the problem that the nut on the traditional screw rod is separated from the end of the other hoop ring, and the check valve is disassembled.

[0019] 2. An externally threaded ring is arranged on the two end ports of the check valve, and a threaded sleeve is arranged on the water pipe to be installed, the water pipe is inserted into the two end ports of the check valve through the screw engagement between the externally threaded ring and the threaded sleeve, the water pipe and the check valve port are difficult to butt joint, and the butt joint installation speed is accelerated. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the check valve.

[0022] Figure 2 It is a schematic diagram of the split type check valve after disassembly.

[0023] Figure 3 It is a schematic diagram of the pipe quick mounting assembly.

[0024] Explanation of reference signs:

[0025] 1. Split type check valve; 11. Right valve body; 12. Left valve body; 13. Sealing gasket; 14. Rear hoop ring; 15. Hinge; 16. Valve core; 17. Sealing ring; 18. Sealing groove; 19. Front hoop ring; 110. Handle; 111. Internally threaded pipe; 112. Tapered screw rod; 2. Pipe quick mounting assembly; 21. Water pipe; 22. Threaded sleeve; 23. Sealing end cover; 24. Externally threaded ring. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0027] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application and uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or similar elements and features. The various drawings are schematic illustrations of the concepts and principles of embodiments of the present disclosure and do not necessarily show the specific dimensions or proportions to which embodiments of the present disclosure are necessarily limited. Certain parts in certain drawings can be exaggerated to illustrate related details or structures of embodiments of the present disclosure. The disclosures of various publications, patents and published patent specifications, which are cited herein, are hereby incorporated by reference in their entirety. The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application.

[0028] The preferred technical scheme of the split quick-mount check valve of the embodiment comprises the following.

[0029] The split check valve 1 is connected with the pipe quick-mount assembly 2 at both ends; the split check valve 1 comprises a right valve body 11 and a left valve body 12, the front side and the rear side of the contact position of the right valve body 11 and the left valve body 12 are provided with a front side clamp ring 19 and a rear side clamp ring 14, respectively, the bottom ends of the front side clamp ring 19 and the rear side clamp ring 14 are hingedly connected, the top ends of the front side clamp ring 19 and the rear side clamp ring 14 are fixedly connected with a conical screw 112, and the outer peripheries of the conical screws 112 away from each other are screwed with an internally threaded pipe 111.

[0030] The inner cavity of the right valve body 11 is fixedly connected with a valve core 16, and the inner faces of the ends of the right valve body 11 and the left valve body 12 away from each other are embedded with a sealing ring 17.

[0031] The pipe quick-mount assembly 2 comprises a water pipe 21 inserted into the inner cavities of the right valve body 11 and the left valve body 12, respectively, and a sealing end cover 23 fixed on the outer surface of the water pipe 21, the outer surface of the sealing end cover 23 is rotatably provided with a threaded sleeve 22, and the outer surface of the right valve body 11 and the left valve body 12 is fixedly connected with an external thread ring 24 threadedly coupled with the inner cavity of the threaded sleeve 22.

[0032] The outer surface of the right valve body 11 and the left valve body 12 close to each other is provided with a groove for clamping the inner side surfaces of the front side clamp ring 19 and the rear side clamp ring 14, the inner side surfaces of the front side clamp ring 19 and the rear side clamp ring 14 are provided with a sealing gasket 13 for sealing the gap between the end faces of the right valve body 11 and the left valve body 12, the bottom ends of the front side clamp ring 19 and the rear side clamp ring 14 are connected with a hinge 15 for rotating the front side clamp ring 19 and the rear side clamp ring 14 along the hinge joint at the bottom ends, the outer surface of the conical screw 112 is provided with threads matched with the inner cavity of the internally threaded pipe 111, and the outer surface of the internally threaded pipe 111 is fixedly connected with 2-4 handle 110.

[0033] The vertical section of the conical screw 112 is a circular truncated cone, the diameter of the top end face of the conical screw 112 is smaller than the diameter of the bottom end face, the sealing groove 18 in which the sealing ring 17 is embedded is arranged on the side end face of the right valve body 11 and the left valve body 12 away from each other, the side end face of the right valve body 11 and the left valve body 12 away from each other respectively contacts with the side end face of the left and right sealing end covers 23 close to each other, the groove in which the sealing ring 17 is coupled and embedded is arranged on the side end face of the sealing end cover 23 close to each other, and the inner cavity side wall of the threaded sleeve 22 is provided with the thread matched with the outer thread of the outer thread ring 24.

[0034] According to the above-mentioned preferred technical scheme, the working process of the technical scheme is described.

[0035] After the right valve body 11 and the left valve body 12 are butted and the valve core 16 is wrapped, the rear side hoop ring 14 and the front side hoop ring 19 are wrapped around the butt joint position of the right valve body 11 and the left valve body 12, the conical screw 112 is driven to be close to each other by rotating the inner threaded pipe 111, and then the rear side hoop ring 14 and the front side hoop ring 19 are locked by being engaged with each other, the right valve body 11 and the left valve body 12 are connected with the water pipe 21, the threaded sleeve 22 is aligned with the outer thread ring 24 on the outer surface of the right valve body 11 and the left valve body 12, the threaded sleeve 22 is rotated after being engaged with the outer thread ring 24, the water pipe 21 is inserted into the right valve body 11 and the left valve body 12 by the engagement between the thread and the thread, after the butt joint is completed, the end face of the sealing end cover 23 contacts with the outer side end face of the right valve body 11 and the left valve body 12, and the sealing ring 17 is used to seal the port.

[0036] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. Split quick-mount check valve comprising a split check valve (1) characterized in that: The pipe quick-mounting assembly (2) is connected to the left and right ends of the split check valve (1); The split check valve (1) comprises a right valve body (11) and a left valve body (12), and the outer periphery of the front side and the rear side of the contact position of the right valve body (11) and the left valve body (12) is respectively provided with a front side hoop ring (19) and a rear side hoop ring (14), the bottom ends of the front side hoop ring (19) and the rear side hoop ring (14) are hingedly connected to each other, the top ends of the front side hoop ring (19) and the rear side hoop ring (14) are fixedly connected with conical screws (112), and the outer peripheries of the conical screws (112) away from each other are screwed with internally threaded pipes (111). The inner cavity of the right valve body (11) is fixedly connected with a valve core (16), and the inner end faces of the right valve body (11) and the left valve body (12) away from each other are embedded with sealing rings (17). The pipe quick-mounting assembly (2) comprises water pipes (21) inserted into the inner cavities of the right valve body (11) and the left valve body (12) respectively, and sealing end covers (23) fixed on the outer peripheral surfaces of the water pipes (21), the outer peripheral surfaces of the sealing end covers (23) are rotatably provided with threaded sleeves (22), and the outer peripheral surfaces of the right valve body (11) and the left valve body (12) are fixedly connected with externally threaded rings (24) threadedly coupled with the inner cavities of the threaded sleeves (22).

2. The split quick-mount check valve of claim 1, wherein: The outer peripheral surfaces of the right valve body (11) and the left valve body (12) away from each other are provided with grooves for clamping the inner side surfaces of the front side hoop ring (19) and the rear side hoop ring (14), and the inner side surfaces of the front side hoop ring (19) and the rear side hoop ring (14) are provided with sealing gaskets (13) for sealing the end face gaps between the right valve body (11) and the left valve body (12).

3. The split quick-mount check valve of claim 1, wherein: The bottom ends of the front side hoop ring (19) and the rear side hoop ring (14) are connected with a hinge (15) for rotating the front side hoop ring (19) and the rear side hoop ring (14) along the hinge joint points of the bottom ends.

4. The split quick-mount check valve of claim 1, wherein: The outer peripheral surfaces of the conical screws (112) are provided with threads matched with the inner cavities of the internally threaded pipes (111).

5. The split quick-mount check valve of claim 1, wherein: The outer peripheral surfaces of the internally threaded pipes (111) are fixedly connected with 2-4 handle bars (110).

6. The split quick-mount check valve of claim 1, wherein: The vertical sections of the conical screws (112) are all frustoconical, and the top end face diameter of the conical screw (112) is smaller than the bottom end face diameter.

7. The split quick-mount check valve of claim 1, wherein: The side end faces of the right valve body (11) and the left valve body (12) away from each other are provided with sealing grooves (18) for embedding the sealing rings (17), and the end faces of the right valve body (11) and the left valve body (12) away from each other are in contact with the side end faces of the left and right sealing end covers (23) close to each other.

8. The split quick-mount check valve of claim 1, wherein: The side end faces of the sealing end covers (23) close to each other are provided with grooves for coupling and embedding the sealing rings (17).

9. The split quick-mount check valve of claim 1, wherein: The inner cavity side walls of the threaded sleeves (22) are provided with threads matched with the outer thread rings (24).

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