CN216306870U

CN216306870U - Direct-buried double-eccentric telescopic butterfly valve

Info

Publication number: CN216306870U
Application number: CN202122073948.8U
Authority: CN
Inventors: 李开发
Original assignee: Zhonglan Valve Tianjin Co ltd
Current assignee: Zhonglan Valve Tianjin Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-04-15
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a direct-buried double-eccentric telescopic butterfly valve, which belongs to the technical field of telescopic butterfly valves and comprises a butterfly valve body and a telescopic mechanism, wherein the telescopic mechanism comprises a telescopic sleeve, a support, a threaded rod, a gland, a sealing ring and a nut, the telescopic sleeve is fixed on one side of the butterfly valve body, the inside of the telescopic sleeve is fixedly provided with two clamping blocks, the support is provided with two supports, one end of the support is rotatably connected on the surface of one support, the other end of the threaded rod penetrates through the other support, the threaded rod is annularly and alternately arranged on the surface of the support, the gland is sleeved on the threaded rod in a sliding manner, the sealing ring is fixed on one side of the gland, the sealing ring is attached to the surface of the clamping block, the nut is sleeved on one side of the gland on the threaded rod opposite to the sealing ring, this two eccentric flexible butterfly valves of formula of directly burying can be with pipeline snap-on in flexible cover, installation convenient to use.

Description

Direct-buried double-eccentric telescopic butterfly valve

Technical Field

The utility model relates to the field of telescopic butterfly valves, in particular to a direct-buried double-eccentric telescopic butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve with a closing part which is a disc and rotates around a valve shaft to achieve opening and closing.

The butterfly valve is buried when using in the underground because the soil pressure changes along with the environmental change and produces axial and circumferential pressure when making the butterfly valve connect on the pipeline for pipeline and butterfly valve fracture and lead to leaking, and the installation of the general part of traditional flexible butterfly valve is numerous troublesome.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides a direct-buried double-eccentric telescopic butterfly valve, which solves the problem that more telescopic butterfly valve parts are inconvenient to install.

The utility model is realized by the following steps:

the utility model provides a direct-buried double-eccentric telescopic butterfly valve which comprises a butterfly valve body and a telescopic mechanism.

The butterfly valve body.

Telescopic machanism includes telescopic sleeve, support, threaded rod, gland, sealing washer and nut, telescopic sleeve fixes butterfly valve body one side, the telescopic sleeve inside is fixed with the fixture block, the support is equipped with two, two the support interval is fixed the telescopic sleeve outside, the threaded rod is equipped with a plurality of, one end is rotated and is connected one the support surface, the threaded rod other end runs through another in the support, threaded rod annular interval sets up the support surface, the gland slides and cup joints on the threaded rod, the sealing washer is fixed gland one side, the sealing washer with the laminating of fixture block surface, the nut screw thread cup joints on the threaded rod the gland is relative one side of sealing washer.

In one embodiment of the utility model, a flange is installed on one side of the telescopic sleeve, and the telescopic sleeve is fixedly connected with one side of the butterfly valve body through the flange.

In an embodiment of the present invention, a plurality of through holes are formed on the surface of the gland, and the through holes are arranged corresponding to the threaded rods.

In an embodiment of the present invention, a groove is formed on one side of the clamping block.

In an embodiment of the present invention, a protrusion is fixed on one side of the gland, the protrusion is disposed outside the sealing ring, and the protrusion is in clearance fit with the groove.

In one embodiment of the utility model, a plurality of bearing seats are arranged on the surface of the support, and one end of the threaded rod is fixed in each bearing seat.

In one embodiment of the utility model, one end of the threaded rod, which is far away from the bearing seat, is provided with an anti-drop block.

In one embodiment of the utility model, the length of the projection is greater than the distance from the groove to the outer side of the telescopic sleeve.

In one embodiment of the utility model, the inner diameter of the fixture block is designed from large to small, and the outer diameter of the sealing ring is designed from small to large and is attached to the inner diameter of the fixture block.

In one embodiment of the utility model, the flanges are also mounted on both sides of the butterfly valve body.

The utility model has the beneficial effects that: when the direct-buried double-eccentric telescopic butterfly valve is used, one side of the butterfly valve body is fixed on a pipeline through the flange, the pipeline on the other side is directly inserted into the telescopic sleeve, the gland is compressed into the telescopic sleeve by screwing the nut, the sealing ring on one side is pressed into a gap between the pipeline and the surface of the clamping block on the inner wall of the telescopic sleeve by the gland until the gland is attached to the outer surface of the telescopic sleeve, the pipeline can be fixed in the telescopic sleeve, the pipeline can move horizontally and circumferentially in the sealing ring and the telescopic sleeve to reduce the force, and the direct-buried double-eccentric telescopic butterfly valve can directly fix the pipeline in the telescopic sleeve and is convenient to install and use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a first view structural diagram of a direct-buried double-eccentric telescopic butterfly valve according to an embodiment of the present invention;

fig. 2 is a second view structural diagram of a direct-buried double-eccentric telescopic butterfly valve according to an embodiment of the present invention;

fig. 3 is a schematic view of a first viewing angle of a gland according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a second perspective structure of a gland according to an embodiment of the present invention.

In the figure: 100-a butterfly valve body; 200-a telescoping mechanism; 210-a telescopic sleeve; 211-a fixture block; 2111-groove; 212-a flange; 220-a support; 221-a bearing seat; 230-a threaded rod; 231-an anti-drop block; 240-a gland; 241-a through hole; 242-bumps; 250-a sealing ring; 260-nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a technical solution: a direct-buried double-eccentric telescopic butterfly valve comprises a butterfly valve body 100 and a telescopic mechanism 200, wherein the telescopic mechanism 200 is fixed on one side of the butterfly valve body 100.

Referring to fig. 1, the butterfly valve body 100 is also provided with flanges 212 on both sides of the butterfly valve body 100.

Referring to fig. 1, 2, 3 and 4, the telescoping mechanism 200 includes a telescoping sleeve 210, a support 220, a threaded rod 230, a gland 240, a sealing ring 250 and a nut 260, the telescoping sleeve 210 is fixed on one side of the butterfly valve body 100, a flange 212 is installed on one side of the telescoping sleeve 210, the telescoping sleeve 210 is fixedly connected with one side of the butterfly valve body 100 through the flange 212, a fixture block 211 is fixed inside the telescoping sleeve 210, a groove 2111 is formed on one side of the fixture block 211, the inner diameter of the fixture block 211 is designed from large to small, the outer diameter of the sealing ring 250 is designed from small to large and is attached to the inner diameter of the fixture block 211, two supports 220 are provided, two supports 220 are fixed outside the telescoping sleeve 210 at intervals, a plurality of bearing seats 221 are installed on the surface of the support 220, one end of the threaded rod 230 is fixed in the bearing seat 221, one end of the threaded rod 230, which is far away from the bearing seat 221, a plurality of the threaded rod 230 is rotatably connected to the surface of one support 220, the other end of the threaded rod 230 penetrates through the other support 220, the threaded rod 230 is annularly arranged on the surface of the support 220 at intervals, the gland 240 is sleeved on the threaded rod 230 in a sliding mode, a plurality of through holes 241 are formed in the surface of the gland 240, a bump 242 is fixed on one side of the gland 240, the bump 242 is arranged on the outer side of the sealing ring 250, the bump 242 is in clearance fit with the groove 2111, the length of the bump 242 is larger than the distance from the groove 2111 to the outer side of the telescopic sleeve 210, the through holes 241 correspond to the positions of the threaded rod 230, the sealing ring 250 is fixed on one side of the gland 240, the sealing ring 250 is attached to the surface of the clamping block 211, and the nut 260 is sleeved on one side, opposite to the sealing ring 250, of the gland 240 on the threaded rod 230 in a threaded mode.

Specifically, this formula of directly burying double-eccentric telescopic butterfly valve's theory of operation: during operation, one side of the butterfly valve body 100 is fixed on a pipeline through the flange 212, the pipeline on the other side is directly inserted into the telescopic sleeve 210, the gland 240 is compressed into the telescopic sleeve 210 by screwing the nut 260, the sealing ring 250 on one side is pressed into a gap between the pipeline and the surface of the clamping block 211 on the inner wall of the telescopic sleeve 210 by the gland 240 until the gland 240 is attached to the outer surface of the telescopic sleeve 210, the pipeline can be fixed in the telescopic sleeve 210, and the pipeline can move horizontally and circumferentially in the sealing ring 250 and the telescopic sleeve 210 to reduce the received force.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A direct-buried double-eccentric telescopic butterfly valve is characterized by comprising

A butterfly valve body (100);

the telescopic mechanism (200) comprises a telescopic sleeve (210), a support (220), a threaded rod (230), a gland (240), a sealing ring (250) and a nut (260), wherein the telescopic sleeve (210) is fixed on one side of the butterfly valve body (100), a clamping block (211) is fixed inside the telescopic sleeve (210), the support (220) is provided with two supports (220) which are fixed outside the telescopic sleeve (210) at intervals, the threaded rod (230) is provided with a plurality of supports, one end of the threaded rod (230) is rotationally connected to the surface of one support (220), the other end of the threaded rod (230) penetrates through the other support (220), the annular interval of the threaded rod (230) is arranged on the surface of the support (220), the gland (240) is sleeved on the threaded rod (230) in a sliding manner, the sealing ring (250) is fixed on one side of the gland (240), the sealing ring (250) is attached to the surface of the clamping block (211), and the gland (240) on the threaded rod (230) is sleeved with the nut (260) in a threaded manner, so that one side of the sealing ring (250) is opposite to the gland.

2. A direct-buried double-eccentric telescopic butterfly valve according to claim 1, wherein a flange (212) is installed at one side of the telescopic sleeve (210), and the telescopic sleeve (210) is fixedly connected with one side of the butterfly valve body (100) through the flange (212).

3. The direct-buried double-eccentric telescopic butterfly valve according to claim 1, wherein a plurality of through holes (241) are opened on the surface of the gland (240), and the through holes (241) are arranged corresponding to the threaded rod (230).

4. A direct-buried double-eccentric telescopic butterfly valve according to claim 1, characterized in that one side of the fixture block (211) is provided with a groove (2111).

5. A direct-buried double-eccentric telescopic butterfly valve according to claim 4, characterized in that a lug (242) is fixed on one side of the gland (240), the lug (242) is arranged on the outer side of the sealing ring (250), and the lug (242) is in clearance fit with the groove (2111).

6. A direct-buried double-eccentric telescopic butterfly valve according to claim 1, characterized in that a plurality of bearing seats (221) are installed on the surface of the support (220), and one end of the threaded rod (230) is fixed in the bearing seats (221).

7. A direct-buried double-eccentric telescopic butterfly valve according to claim 6, characterized in that the end of the threaded rod (230) far away from the bearing seat (221) is provided with a retaining block (231).

8. A buried double eccentric butterfly valve according to claim 5, characterized in that the length of the projection (242) is greater than the distance from the groove (2111) to the outside of the bellows (210).

9. The direct-buried double-eccentric telescopic butterfly valve according to claim 1, wherein the inner diameter of the clamping block (211) is designed from large to small, and the outer diameter of the sealing ring (250) is designed from small to large and is attached to the inner diameter of the clamping block (211).

10. A direct-buried double-eccentric telescopic butterfly valve according to claim 2, characterized in that said flange (212) is also mounted on both sides of the butterfly valve body (100).