CN217234798U

CN217234798U - Anti-drop valve

Info

Publication number: CN217234798U
Application number: CN202220309458.5U
Authority: CN
Inventors: 王宏丰; 纪学清; 李学洪
Original assignee: QINGDAO HUAGUAN VALVE CO Ltd
Current assignee: Qingdao Huashengde Precision Casting Co.,Ltd.
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-08-19
Anticipated expiration: 2032-02-16

Abstract

The utility model relates to the technical field of valves, and discloses an anti-drop valve, which comprises a valve body and a pipeline, wherein a first branch pipe and a second branch pipe are respectively installed at two ends of the valve body, the middle part of the pipeline is disconnected, the open ends of the first branch pipe and the second branch pipe are respectively butted with two fractures of the pipeline, locking sleeves are respectively arranged on the first branch pipe and the second branch pipe in a sliding manner, and the two locking sleeves are respectively sleeved on the outer walls of the two fractures of the pipeline through threads and fastened through bolts; and two fracture sections of the pipeline are provided with backing rings. The utility model discloses can with pipeline and branch pipe, the effect of firm installation is played in the junction locking of pipeline and No. two branch pipes, utilizes the bolt to fasten lock sleeve and pipeline at last, plays supplementary firm effect, is favorable to improving the installation steadiness of valve body, and overall structure is simple, and the installation is convenient and stable, has wide market prospect, does benefit to the popularization.

Description

Anti-drop valve

Technical Field

The utility model relates to the technical field of valves, specifically be an anti-drop valve.

Background

The valves are pipe fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be classified into shut-off valves, check valves, regulating valves, etc. according to their functions, the valves have functions of stopping, regulating, guiding, preventing backflow, stabilizing pressure, shunting, overflowing, relieving pressure, etc., are used for valves of fluid control systems, and range from the simplest stop valves to various valves used in extremely complex autonomous systems, and the variety and specification of the valves are quite various. Most of current valves are designed by a traditional structure, the joints of the valves and pipelines are connected by single bolts, the installation stability is required to be improved, and therefore an anti-falling valve is provided.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problem that prior art exists, the utility model provides an anti-drop valve.

In order to achieve the purpose, the utility model provides an anti-drop valve, including valve body and pipeline, the both ends of valve body are installed branch pipe and No. two branch pipes respectively, the middle part of pipeline is broken off, the open end of branch pipe and No. two branch pipes docks with two fractures of pipeline respectively, all slide on branch pipe and No. two branch pipes and be provided with the locking sleeve pipe, two locking sleeve pipe respectively the screw thread cup joint on two fracture outer walls of pipeline and through the bolt fastening;

backing rings are all installed to two fracture tangent planes of pipeline, the sealing ring is all installed to the open end of a branch pipe and No. two branch pipes, the backing ring closely laminates with the sealing ring, the fixed cover is equipped with the adapter tube in the open end of a branch pipe and No. two branch pipes, the other end of adapter tube passes sealing ring and backing ring in proper order and closely pegs graft with the pipeline.

Preferably, the one end of locking sleeve pipe sets up to the opening, and the trepanning with a branch pipe and No. two branch pipe looks adaptations is seted up at the middle part of the other end, two locking sleeve pipe passes through the trepanning and slides the suit respectively on a branch pipe and No. two branch pipes, locking sleeve pipe suit is at the surface of backing ring and sealing ring and with the outer wall threaded connection of pipeline.

Preferably, the outer diameter of the sealing ring is larger than the inner diameter of the trepan boring of the locking sleeve, and the outer edge of the sealing ring is in sliding connection with the inner wall of the locking sleeve.

Preferably, at least four positioning holes which are symmetrically distributed in an annular shape are formed in the backing ring, one side, close to the backing ring, of the sealing ring is provided with positioning columns matched with the positioning holes, and the positioning columns are tightly inserted into the positioning holes.

Preferably, the sealing ring is a hard rubber product.

Compared with the prior art, the utility model provides an anti-drop valve has following beneficial effect:

the utility model discloses a sealing ring drives the reference column and pegs graft with the backing ring, combine the sealing ring to drive the linking pipe and insert in the pipeline, be convenient for pipeline and branch pipe No. one, quick butt joint between pipeline and No. two branch pipes, the threaded connection of rethread locking sleeve and pipeline, can be with pipeline and branch pipe No. one, the junction locking of pipeline and No. two branch pipes, play the effect of firm installation, utilize the bolt to fasten locking sleeve and pipeline at last, play supplementary firm effect, be favorable to improving the installation steadiness of valve body, the overall structure is simple, the installation is convenient and stable, wide market prospect has, do benefit to the popularization.

Drawings

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

FIG. 2 is a schematic view of a partial cross-sectional structure of the pipeline of the present invention;

fig. 3 is a schematic sectional view of the first branch pipe and the connecting pipe in fig. 2 according to the present invention.

In the figure: 1. a valve body; 2. a pipeline; 3. a first branch pipe; 4. a second branch pipe; 5. locking the sleeve; 6. a bolt; 7. a backing ring; 8. a seal ring; 9. connecting the pipe; 10. and a positioning column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure.

The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Referring to fig. 1-3, an anti-drop valve comprises a valve body 1 and a pipeline 2, wherein a first branch pipe 3 and a second branch pipe 4 are respectively installed at two ends of the valve body 1, the middle part of the pipeline 2 is broken, the open ends of the first branch pipe 3 and the second branch pipe 4 are respectively butted with two fractures of the pipeline 2, locking sleeves 5 are respectively arranged on the first branch pipe 3 and the second branch pipe 4 in a sliding manner, and the two locking sleeves 5 are respectively sleeved on the outer walls of the two fractures of the pipeline 2 in a threaded manner and are fastened through bolts 6;

backing rings 7 are installed on two fracture tangent planes of the pipeline 2, sealing rings 8 are installed at the opening ends of the first branch pipe 3 and the second branch pipe 4, the backing rings 7 are tightly attached to the sealing rings 8, a connecting pipe 9 is fixedly sleeved in the opening ends of the first branch pipe 3 and the second branch pipe 4, and the other end of the connecting pipe 9 sequentially penetrates through the sealing rings 8 and the backing rings 7 and is tightly inserted into the pipeline 2.

One end of the locking sleeve 5 is set to be an opening, the middle of the other end is provided with a sleeve hole matched with the first branch pipe 3 and the second branch pipe 4, the two locking sleeve 5 are respectively slidably sleeved on the first branch pipe 3 and the second branch pipe 4 through the sleeve hole, and the locking sleeve 5 is sleeved on the outer surfaces of the backing ring 7 and the sealing ring 8 and is in threaded connection with the outer wall of the pipeline 2.

The outer diameter of the sealing ring 8 is larger than the inner diameter of the trepan boring of the locking sleeve 5, and the outer edge of the sealing ring 8 is in sliding connection with the inner wall of the locking sleeve 5.

At least four positioning holes which are symmetrically distributed in an annular shape are formed in the backing ring 7, one side, close to the backing ring 7, of the sealing ring 8 is provided with positioning columns 10 matched with the positioning holes, and the positioning columns 10 are tightly inserted into the positioning holes.

The seal ring 8 is made of hard rubber.

The utility model discloses a sealing ring 8 drives reference column 10 and links up with backing ring 7 and pegs graft, combine sealing ring 8 to drive linking pipe 9 and insert in pipeline 2, be convenient for pipeline 2 and branch pipe 3, quick butt joint between pipeline 2 and No. two branch pipes 4, rethread locking sleeve 5 and pipeline 2's threaded connection, can be with pipeline 2 and branch pipe 3, pipeline 2 and No. two branch pipe 4's junction locking, play the effect of firm installation, utilize bolt 6 to fasten locking sleeve 5 and pipeline 2 at last, play supplementary firm effect, be favorable to improving the installation steadiness of valve body 1, overall structure is simple, it is convenient and stable to install, wide market prospect has, do benefit to the popularization.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the present invention, the scope of which is defined by the appended claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. An anti-drop valve comprises a valve body (1) and a pipeline (2), wherein a first branch pipe (3) and a second branch pipe (4) are respectively installed at two ends of the valve body (1), the anti-drop valve is characterized in that the middle of the pipeline (2) is disconnected, the open ends of the first branch pipe (3) and the second branch pipe (4) are respectively in butt joint with two fractures of the pipeline (2), locking sleeves (5) are respectively arranged on the first branch pipe (3) and the second branch pipe (4) in a sliding mode, and the two locking sleeves (5) are respectively in threaded sleeve joint with the outer walls of the two fractures of the pipeline (2) and are fastened through bolts (6);

backing ring (7) are all installed to two fracture tangent planes of pipeline (2), sealing ring (8) are all installed to the open end of branch pipe (3) and No. two branch pipe (4), backing ring (7) closely laminate with sealing ring (8), the open end internal fixation cover of branch pipe (3) and No. two branch pipe (4) is equipped with linking pipe (9), the other end of linking pipe (9) passes sealing ring (8) and backing ring (7) in proper order and closely pegs graft with pipeline (2).

2. The anti-falling valve according to claim 1, wherein one end of the locking sleeve (5) is provided with an opening, the middle part of the other end is provided with a trepanning matched with the first branch pipe (3) and the second branch pipe (4), the two locking sleeves (5) are respectively sleeved on the first branch pipe (3) and the second branch pipe (4) in a sliding mode through the trepanning, and the locking sleeves (5) are sleeved on the outer surfaces of the backing ring (7) and the sealing ring (8) and are in threaded connection with the outer wall of the pipeline (2).

3. A drop-proof valve according to claim 2, wherein the outer diameter of the sealing ring (8) is larger than the inner diameter of the sleeve hole of the locking sleeve (5), and the outer edge of the sealing ring (8) is connected with the inner wall of the locking sleeve (5) in a sliding way.

4. The anti-drop valve according to claim 1, wherein the backing ring (7) is provided with at least four positioning holes which are circularly and symmetrically distributed, one side of the sealing ring (8) close to the backing ring (7) is provided with a positioning column (10) matched with the positioning holes, and the positioning column (10) is tightly inserted into the positioning holes.

5. A drop-off prevention valve according to claim 1, wherein the sealing ring (8) is a hard rubber product.