Valve capable of preventing opening from being automatically adjusted

Abstract

The utility model relates to the technical field of valve structures, in particular to a valve capable of preventing opening from being automatically adjusted, which comprises a valve main body and an opening adjusting component, the opening adjusting component is arranged at the top of the valve main body, and a connecting end of an adjusting component of the opening adjusting component is fixed with the end of a valve connecting rod. The limiting end can rotate by taking the valve connecting rod as a shaft; a limiting part of the opening degree adjusting assembly can limit the action of the adjusting part; when the angle of the valve element is adjusted through the handle, the adjusting part of the opening adjusting assembly can synchronously rotate along with the valve element and the valve element connecting rod. After adjustment, temporary fixation is carried out through the limiting component; the valve core rotation caused by pressure change can be effectively avoided, so that the fixed opening degree of the valve core is ensured, the influence on the system flow and pressure is avoided, and the continuous production is not influenced. And through operation of the opening degree adjusting assembly, the adjusting difficulty can be reduced, convenience can be improved, and management is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of valve structures, in particular to a valve capable of preventing automatic adjustment of opening. Background Art

[0002] The closing part of the ball valve is a sphere, which is a kind of valve that opens and closes by rotating around the center line of the valve body. Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline.

[0003] Flanged ball valves are a type of valve that is used in large quantities in chemical units. It can be said that every workshop unit will use it, especially when installed at the pump outlet and return valve position. In order to ensure stable operation of the pump, the valve opening needs to be adjusted. This requires that the valve opening cannot change with the pipeline pressure. However, when multiple pumps are installed in parallel, due to the pressure difference between the pump outlet pipeline and the return pipeline, the valve opening fluctuates with the pressure difference.

[0004] In order to ensure that the valve opening is not affected by the pressure difference, the valve handle is usually tied and fixed to the on-site pipeline with iron wire on site. Otherwise, the handle rotates after adjustment. When adjustment is required, it is necessary to untie it again and tie it again after adjustment, which is very cumbersome. This often brings a lot of inconvenience to valve adjustment and has a great impact on on-site management. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, an embodiment of the utility model provides a valve for preventing automatic opening adjustment, comprising:

[0007] A valve body, wherein a valve cavity is provided inside the valve body, wherein a rotatable valve core is provided in the valve cavity; a valve connecting rod is provided at the top of the valve body, which penetrates into the valve cavity and is connected to the valve core, and a handle is provided at the top of the valve connecting rod;

[0008] The opening adjustment component is arranged on the top of the valve body, the connecting end of the adjustment component is fixed to the end of the valve connecting rod, and the limiting end can rotate with the valve connecting rod as the axis; the limiting component of the opening adjustment component can limit the movement of the adjustment component.

[0009] In the solution of the utility model, by setting up an independent opening adjustment component, when the angle of the valve core is adjusted by the handle, the adjustment component of the opening adjustment component can rotate synchronously with the valve core and the valve core connecting rod; after adjustment, it is temporarily fixed by the limit component; it can effectively avoid the rotation of the valve core caused by pressure changes, thereby ensuring that the opening of the valve core is fixed, avoiding the impact on the system flow and pressure, and not affecting continuous production. And by operating the opening adjustment component, it can reduce the difficulty of adjustment, improve convenience, and make management easier.

[0010] In the above preferred solution of the valve for preventing automatic opening adjustment, the top of the valve body is a mounting table, and the main body of the opening adjustment component is detachably connected to the mounting table.

[0011] In the above preferred embodiment of the valve for preventing automatic opening adjustment, the opening adjustment component comprises:

[0012] The mounting base plate has a plurality of connection holes 1 arranged at its edge, the mounting table surface is provided with connection holes 2 corresponding to the connection holes 1, the mounting base plate and the mounting table surface can be detachably connected through the connection holes 1, the connection holes 2 and bolts; and a plurality of limit holes 1 are arranged at positions corresponding to the motion track of the limit end of the adjusting component;

[0013] The adjusting component has a sleeve hole at one end, which is sleeved and fixed on the top of the valve connecting rod, and a plurality of second limiting holes at the other end; when the adjusting component rotates with the valve connecting rod as the axis, one or more of the plurality of second limiting holes can correspond to the first limiting hole;

[0014] The limiting component is a columnar structure, and can pass through the second limiting hole and the first limiting hole in sequence to limit the adjusting component.

[0015] In the above-mentioned preferred solution of the valve for preventing automatic adjustment of the opening, the connecting end of the limiting component is annular, and a square hole adapted to the valve connecting rod is provided inside; its limiting end is fan-shaped, and a plurality of limiting holes 2 are provided near the outer edge of the fan-shaped portion.

[0016] In the above preferred embodiment of the valve for preventing automatic adjustment of the opening, the first limiting hole is a through hole, and the limiting component is a positioning pin; or the first limiting hole is a threaded hole, and the limiting component is a screw.

[0017] In the above-mentioned preferred solution of the valve that prevents automatic adjustment of the opening, when the limiting hole 1 is a through hole, a magnet layer is provided at the bottom of the limiting hole 1, and when the positioning pin penetrates into the limiting hole 1, it can be magnetically connected with the corresponding end of the positioning pin.

[0018] In the above-mentioned preferred solution of the valve for preventing automatic adjustment of the opening, the limiting component is annular, and a square hole adapted to the valve connecting rod is provided at the central position; its outer edge end is the limiting end, and a plurality of limiting holes 2 are provided near the outer edge end.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, rather than limiting the present disclosure. Other features and aspects of the present disclosure will become more apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the principle of preventing the automatic adjustment of the opening shown in the utility model.

[0022] Figure 2 It is a structural schematic diagram of the opening adjustment component shown in the utility model.

[0023] Figure 3 It is a schematic diagram of the connection of the regulating components in the opening regulating assembly of the utility model at different openings.

[0024] Figure 4 It is a schematic diagram of installing a base plate in the opening adjustment component of the utility model.

[0025] Reference numerals:

[0026] 1. Valve body; 10. Valve connecting rod; 11. Valve core; 12. Handle; 13. Mounting table; 2. Opening adjustment component; 20. Mounting base plate; 200. Limit hole 1; 21. Adjustment component; 210. Socket hole; 211. Limit hole 2; 22. Limit component. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] As mentioned in the background technology, the valve opening needs to be adjusted for stable pump operation, which requires that the valve opening cannot change with the pipeline pressure. However, when multiple pumps are installed in parallel, the pressure difference between the pump outlet pipeline and the return pipeline causes the valve opening to fluctuate with the pressure difference. In order to ensure that the valve opening is not affected by the pressure difference, the valve handle is usually tied and fixed to the on-site pipeline with iron wire on site. Otherwise, the handle rotates after adjustment. When adjustment is required, it needs to be untied again, and then tied and fixed again after adjustment, which is very cumbersome. This often brings many inconveniences to valve adjustment and has a great impact on on-site management.

[0029] Reference Figure 1-4 As shown, a valve for preventing automatic opening adjustment according to an embodiment of the utility model comprises: a valve body 1 and an opening adjustment component 2; wherein,

[0030] A valve cavity is provided inside the valve body 1, and a rotatable valve core 11 is provided in the valve cavity; a valve connecting rod 10 is provided at the top of the valve body 1, which penetrates into the valve cavity and is connected to the valve core 11, and a handle 12 is provided at the top of the valve connecting rod 10; an opening adjustment component 2 is provided at the top of the valve body 1, and the connecting end of its adjusting component 21 is fixed to the end of the valve connecting rod 10, and the limiting end can rotate with the valve connecting rod 10 as the axis; the limiting component 22 of the opening adjustment component 2 can limit the movement of the adjusting component 21.

[0031] It should be noted that the valve body 1 is a prior art and can be a common manual ball valve structure on the market; when the handle 12 is turned, the valve connecting rod 10 can drive the internal valve core 11 to rotate to adjust the opening.

[0032] In the solution of the utility model, by setting up an independent opening adjustment component 2, when the angle of the valve core 11 is adjusted by the handle, the adjustment component 21 of the opening adjustment component 2 can rotate synchronously with the valve core 11 and the valve core 11 connecting rod; after adjustment, it is temporarily fixed by the limit component 22; it can effectively avoid the rotation of the valve core 11 caused by pressure changes, thereby ensuring that the opening of the valve core 11 is fixed, avoiding the impact on the system flow and pressure, and not affecting continuous production. And by operating the opening adjustment component 2, it can reduce the difficulty of adjustment, improve convenience, and make management easier.

[0033] In the preferred embodiment of the valve for preventing automatic opening adjustment, the top of the valve body 1 is a mounting surface 13 , and the main body of the opening adjustment component 2 is detachably connected to the mounting surface 13 .

[0034] Specifically, the mounting table 13 is a horizontal mounting surface in a square shape, and four connection holes 2 are arranged on its surface, which are respectively arranged at the corners of the mounting table 13 .

[0035] In the above-mentioned solution, the opening adjustment component 2 can be quickly installed, and is more practical.

[0036] In the preferred embodiment of the valve for preventing automatic opening adjustment, the opening adjustment component 2 includes: a mounting base 20, an adjustment component 21 and a limit component 22; wherein,

[0037] The mounting base plate 20 is square, with a flat bottom and four connection holes 1 arranged on the edge. The mounting table 13 is provided with connection holes 2 corresponding to the connection holes 1. The mounting base plate 20 and the mounting table 13 can be detachably connected through the connection holes 1, 2 and bolts; and a plurality of limit holes 1 200 are arranged at positions corresponding to the motion track of the limit end of the adjustment component 21;

[0038] A sleeve hole 210 is provided at one end of the adjusting component 21, which is sleeved and fixed on the top end of the valve connecting rod 10, and a plurality of limit holes 211 are provided at the other end; when the adjusting component 21 rotates with the valve connecting rod 10 as the axis, one or more of the plurality of limit holes 211 can correspond to the limit hole 1 200; the limit component 22 is a columnar structure, which can pass through the limit hole 211 and the limit hole 1 200 in sequence to limit the adjusting component 21.

[0039] In the above scheme, while the ball valve is rotated by rotating the handle 12, the valve connecting rod 10 can drive the valve core 11 to rotate. When adjusted to a suitable opening, the adjusting component 21 is sequentially passed through the limiting hole 211 and the limiting hole 1 200, the adjusting component 21 is clamped in a fixed position, and the valve connecting rod 10 is limited by the adjusting component 21 to prevent it from rotating, thereby preventing the opening of the valve core 11 from changing.

[0040] In one embodiment of the utility model, the connecting end of the limiting component 22 can be annular, with a square hole adapted to the valve connecting rod 10 inside, and the connecting position of the valve connecting rod 10 is a square column, which can be clamped and rotated synchronously after being installed; its limiting end is fan-shaped, and a plurality of limiting holes 211 are arranged near the outer edge of the fan-shape.

[0041] In another embodiment of the present invention, the limiting component 22 may be annular, with a square hole adapted to the valve connecting rod 10 at the central position; its outer edge end is the limiting end, and a plurality of limiting holes 211 are provided near the outer edge end.

[0042] In the above solution, since a plurality of limiting holes 1 200 and limiting holes 211 are provided, a plurality of opening adjustment methods are provided, which can meet different usage scenarios and has stronger adaptability.

[0043] In the preferred embodiment of the above-mentioned valve for preventing automatic adjustment of the opening, the limiting hole 200 is a through hole, and the limiting component 22 is a positioning pin; or the limiting hole 200 is a threaded hole, and the limiting component 22 is a screw.

[0044] In the above scheme, if a combination of a through hole and a positioning pin is provided, it can be easier to release the limit and limit again through a plug-in connection; if a threaded hole and a screw are used, stability can be ensured.

[0045] In a preferred embodiment of the above-mentioned valve for preventing automatic adjustment of the opening, when the limiting hole 200 is a through hole, a magnet layer is provided at the bottom of the limiting hole 200, and when the positioning pin penetrates into the limiting hole 200, it can be magnetically connected with the corresponding end of the positioning pin.

[0046] In the above scheme, if the limiting hole 200 is a through hole, there is a possibility of falling; therefore, by providing a magnetic layer at the bottom, the positioning pin can be adsorbed, and on the basis of plug-in connection, the connection stability of the positioning pin is further guaranteed.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A valve for preventing automatic opening adjustment, characterized in that: include: A valve body, wherein a valve cavity is provided inside the valve body, wherein a rotatable valve core is provided in the valve cavity; a valve connecting rod is provided at the top of the valve body, which penetrates into the valve cavity and is connected to the valve core, and a handle is provided at the top of the valve connecting rod; The opening adjustment component is arranged on the top of the valve body, the connecting end of the adjustment component is fixed to the end of the valve connecting rod, and the limiting end can rotate with the valve connecting rod as the axis; the limiting component of the opening adjustment component can limit the movement of the adjustment component.

2. A valve for preventing automatic opening adjustment according to claim 1, characterized in that: The top of the valve body is a mounting table, and the main body of the opening adjustment component is detachably connected to the mounting table.

3. A valve for preventing automatic opening adjustment according to claim 2, characterized in that: The opening adjustment component comprises: The mounting base plate has a plurality of connection holes 1 arranged at its edge, the mounting table surface is provided with connection holes 2 corresponding to the connection holes 1, the mounting base plate and the mounting table surface can be detachably connected through the connection holes 1, the connection holes 2 and bolts; and a plurality of limit holes 1 are arranged at positions corresponding to the motion track of the limit end of the adjusting component; The adjusting component has a sleeve hole at one end, which is sleeved and fixed on the top of the valve connecting rod, and a plurality of second limiting holes at the other end; when the adjusting component rotates with the valve connecting rod as the axis, one or more of the plurality of second limiting holes can correspond to the first limiting hole; The limiting component is a columnar structure, and can pass through the second limiting hole and the first limiting hole in sequence to limit the adjusting component.

4. A valve for preventing automatic opening adjustment according to claim 3, characterized in that: The connecting end of the limiting component is annular, and a square hole matching the valve connecting rod is arranged inside; the limiting end is fan-shaped, and a plurality of limiting holes 2 are arranged near the outer edge of the fan-shaped.

5. A valve for preventing automatic opening adjustment according to claim 4, characterized in that: The first limiting hole is a through hole, and the limiting component is a positioning pin; or the first limiting hole is a threaded hole, and the limiting component is a screw.

6. A valve for preventing automatic opening adjustment according to claim 5, characterized in that: When the limiting hole 1 is a through hole, a magnet layer is provided at the bottom of the limiting hole 1, and when the positioning pin penetrates into the limiting hole 1, it can be magnetically connected with the corresponding end of the positioning pin.

7. A valve for preventing automatic opening adjustment according to claim 4, characterized in that: The limiting component is annular, and a square hole matching the valve connecting rod is provided at the central position; its outer edge end is the limiting end, and a plurality of limiting holes 2 are provided at positions close to the outer edge end.

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