CN211202918U

CN211202918U - Valve with high-strength and high-wear-resistance valve rod

Info

Publication number: CN211202918U
Application number: CN201922470345.4U
Authority: CN
Inventors: 刘可敏
Original assignee: Chongqing Yangsi Valve Technology Development Co ltd
Current assignee: Chongqing Yangsi Valve Technology Development Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-07
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the technical field of valves, specifically be a valve with high strength and high wear resistance valve rod, including the valve body, the top of valve body is equipped with the connecting pipe, and the top flange joint of connecting pipe has the valve gap, is equipped with second internal thread district and third internal thread district in the valve gap, and the interior swing joint of valve gap has the valve rod, and the outside of valve rod bottom is equipped with the case, and the position that the circumference outer wall of valve body just is located the middle part is equipped with into the flow tube, and is located the tip downward sloping setting of the flow tube that advances in the valve body, and the bottom of valve body is equipped. This valve with high strength and high abrasion valve rod through the screw thread district with in the valve gap divide into two parts, can reduce the wearing and tearing in valve rod screw thread district, makes valve rod and case rotate through two annular turning blocks and is connected, makes the valve rod only produce decurrent thrust, need not receive the influence of rivers side impact force to improve the intensity of valve rod, reduce the degree of wear.

Description

Valve with high-strength and high-wear-resistance valve rod

Technical Field

The utility model relates to the technical field of valves, specifically be a valve with high strength and high wear resistance valve rod.

Background

The valve is a mechanical device for controlling the flow, the flow direction and the like of a fluid medium, the valve rod is an important part of a valve accessory and is used for realizing the opening and closing or adjusting functions of the valve, the valve rod is in threaded connection with the valve cover part and can be seriously abraded after long-time use, when the valve body is closed, the valve rod drives the valve core to rotate together, and because fluid can generate impact force on the valve core, pressure can be generated on the valve rod, and the valve rod can be damaged after long-time use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve with high strength and high wear resistance valve rod to the threaded area who provides the valve rod among the above-mentioned background art wears and can receive the problem that the impact force influences along with the case easily.

In order to achieve the above object, the utility model provides a following technical scheme:

a valve with a high-strength and high-wear-resistance valve rod comprises a valve body, wherein a connecting pipe is arranged at the top of the valve body, a first internal thread area is vertically arranged at the center of the surface of the connecting pipe downwards, the first internal thread area is communicated with the interior of the valve body, a valve cover is connected to the top of the connecting pipe in a flange manner, a first circular through groove is vertically arranged at the center of the top of the valve cover downwards, a second internal thread area is arranged in the middle of the inner wall of the first circular through groove, a third internal thread area is arranged at the bottom of the inner wall of the first circular through groove, a valve rod is movably connected in the first circular through groove, an external thread area is arranged at the position, located at the middle, of the outer circumferential wall of the valve rod, a first annular rotating block is arranged at the position, located at the edge of the bottom end, of the outer circumferential wall of the, the outside of valve rod bottom is equipped with the case, the circular logical groove of second has been seted up to the top center department of case, first annular groove has been seted up to the bottom of the circular logical inslot wall of second, the second annular groove has been seted up at the middle part of the circular logical inslot wall of second, the circumference outer wall of valve body and the position that is located the middle part are equipped with into the flow tube, and are located in the valve body the tip downward sloping setting of entering the flow tube, the bottom of valve body is equipped with out the flow tube, the well lower part of valve body circumference outer wall and the position of keeping away from into the flow tube are equipped with fan-shaped reinforcing plate, the well lower part downward sloping in the fan-shaped reinforcing plate outside is provided with the bracing.

Preferably, a handwheel is welded at the top end of the valve rod.

Preferably, the bottom of the valve core is provided with a conical fixed block.

Preferably, the edge of the end part of the flow inlet pipe is provided with a first flange plate, and the edge of the end part of the flow outlet pipe is provided with a second flange plate.

Preferably, the first annular rotating block is located in the first annular groove, the shape and size of the first annular rotating block are matched with those of the first annular groove, the second annular rotating block is located in the second annular groove, the shape and size of the second annular rotating block are matched with those of the second annular groove, and the valve rod is rotatably connected with the valve core.

Preferably, the first internal thread area, the second internal thread area and the third internal thread area are the same, the thread of the first internal thread area is matched with the thread of the external thread area, when the valve body is closed, the external thread area is in threaded connection with the first internal thread area and the third internal thread area, and when the valve body is opened, the external thread area is in threaded connection with the third internal thread area and the second internal thread area.

Compared with the prior art, the beneficial effects of the utility model are that:

this valve with high strength and high wear resistance valve rod, through thread area with in the valve gap divide into two parts, can reduce the wearing and tearing in valve rod thread area, set up through the inner downward sloping with the inflow pipe, make the rivers direction downwards, the conical solid piece of deuterogamying can make the case move down easily, make valve rod and case rotate through two annular turning blocks and be connected, make the valve rod only produce decurrent thrust, need not receive the influence of rivers side impact force, thereby improve the intensity of valve rod, the reducing wear degree.

Drawings

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

fig. 2 is a schematic view of the cross section and the internal structure of the valve body and the valve cover of the present invention;

fig. 3 is a schematic view of a cross-sectional structure of a valve cover according to the present invention;

fig. 4 is a schematic sectional structure diagram of the valve body of the present invention;

fig. 5 is a schematic view of the valve core profile and the valve rod structure in the present invention.

In the figure: the valve comprises a fan-shaped reinforcing plate 1, a valve body 2, a connecting pipe 20, a first internal thread area 200, a flow inlet pipe 21, a first flange 210, a flow outlet pipe 22, a second flange 220, a supporting rod 3, a valve cover 4, a first circular through groove 40, a second internal thread area 400, a third internal thread area 401, a hand wheel 5, a valve rod 6, an external thread area 60, a first annular rotating block 61, a second annular rotating block 62, a valve core 7, a conical fixed block 70, a second circular through groove 71, a first annular groove 710 and a second annular groove 711.

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 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 or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" 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, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-5, the present invention provides a technical solution:

a valve with a high-strength and high-wear-resistance valve rod comprises a valve body 2, a connecting pipe 20 is arranged at the top of the valve body 2, a first internal thread area 200 is vertically and downwards arranged at the center of the surface of the connecting pipe 20, the first internal thread area 200 is communicated with the valve body 2, a flange at the top of the connecting pipe 20 is connected with a valve cover 4, the position of the valve rod 6 is fixed through the valve cover 4, a first circular through groove 40 is vertically and downwards arranged at the center of the top of the valve cover 4, a second internal thread area 400 is arranged in the middle of the inner wall of the first circular through groove 40, a third internal thread area 401 is arranged at the bottom of the inner wall of the first circular through groove 40, the valve rod 6 is movably connected in the first circular through groove 40, an external thread area 60 is arranged at the position of the middle of the circumferential outer wall of the valve rod 6, the valve rod 6 is in threaded connection with the valve cover 4 and the, a second annular rotating block 62 is arranged on the circumferential outer wall of the valve rod 6 and close to the first annular rotating block 61, a valve core 7 is arranged on the outer side of the bottom of the valve rod 6, the inflow pipe 21 is blocked by the valve core 7 to realize the closing of the valve body 2, a second circular through groove 71 is arranged at the center of the top of the valve core 7, a first annular groove 710 is arranged at the bottom of the inner wall of the second circular through groove 71, a second annular groove 711 is arranged at the middle part of the inner wall of the second circular through groove 71, the inflow pipe 21 is arranged on the circumferential outer wall of the valve body 2 and positioned at the middle part, the end part of the inflow pipe 21 positioned in the valve body 2 is inclined downwards to enable the water flow direction to be downward, so that the valve core 7 can move downwards, the outflow pipe 22 is arranged at the bottom of the valve body 2, a fan-shaped reinforcing plate 1 is arranged at the middle lower part of the, can improve the intensity of valve body 2 through fan-shaped reinforcing plate 1, the lower part downward sloping in the fan-shaped reinforcing plate 1 outside is provided with bracing piece 3, and bracing piece 3's bottom and the top of outflow pipe 22 tip are closely welded, play the effect of supporting and improving stability to fan-shaped reinforcing plate 1 through bracing piece 3.

In this embodiment, the top end of the valve rod 6 is welded with the hand wheel 5, so that a user can open or close the valve conveniently.

Specifically, the bottom of the valve core 7 is provided with a conical fixed block 70, which is convenient for the valve core 7 to move downwards along with the downward direction of the water flow.

Furthermore, a first flange 210 is arranged at the edge of the end part of the inlet pipe 21, and a second flange 220 is arranged at the edge of the end part of the outlet pipe 22, so that the inlet pipe 21 and the outlet pipe 22 can be connected with a pipeline in a sealing manner, and liquid leakage is avoided.

Furthermore, the first annular rotating block 61 is located in the first annular groove 710, the shape and size of the first annular rotating block 61 are matched with the shape and size of the first annular groove 710, the second annular rotating block 62 is located in the second annular groove 711, the shape and size of the second annular rotating block 62 are matched with the shape and size of the second annular groove 711, and the valve rod 6 is rotatably connected with the valve core 7, so that when the valve rod 6 rotates to push the valve core 7 downwards, the valve core 7 does not need to be driven to rotate together, thereby reducing the resistance borne by the valve rod 6 and improving the strength of the valve rod 6.

Besides, the first internal thread area 200, the second internal thread area 400 and the third internal thread area 401 are the same, the thread of the first internal thread area 200 is matched with the thread of the external thread area 60, when the valve body 2 is closed, the external thread area 60 is in threaded connection with the first internal thread area 200 and the third internal thread area 401, when the valve body 2 is opened, the external thread area 60 is in threaded connection with the third internal thread area 401 and the second internal thread area 400, when the valve is opened and closed, the valve rod 6 can be fixed in position, the abrasion degree is reduced, and meanwhile, the use of the valve is not affected.

When the valve with the high-strength and high-wear-resistance valve rod is used, a user connects the water inlet pipeline with the water inlet pipe 21 through the first flange 210 in a threaded manner, connects the water outlet pipeline with the water outlet pipe 22 through the second flange 220 in a threaded manner, when the valve needs to be opened, the user rotates the hand wheel 5 counterclockwise by hand, at the moment, the valve rod 6 moves upwards, the top of the external thread area 60 moves from the third internal thread area 401 to the second internal thread area 400, the first annular rotating block 61 and the second annular rotating block 62 rotate in the first annular groove 710 and the second annular groove 711 respectively to drive the valve core 7 to move upwards, when the valve is completely opened, the external thread area 60 is connected with the second internal thread area 400 and the third internal thread area 401 in a threaded manner, and the position of the valve rod 6 is fixed; when the valve needs to be closed, a user rotates the hand wheel 5 clockwise by hand, at the moment, the valve rod 6 moves downwards to drive the valve core 7 to move downwards, because the water flow direction is downward, the downward resistance of the valve core 7 can be reduced under the action of the conical fixed block 70, and under the action of the two annular rotating blocks, the valve core 7 does not need to be driven to rotate together, so that the valve rod 6 is not influenced by side impact force, when the valve is completely closed, the external thread area 60 is in threaded connection with the first internal thread area 200 and the third internal thread area 401, and the position of the valve rod 6 is fixed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a valve with high strength and high abrasion resistance valve rod, includes valve body (2), its characterized in that: the valve is characterized in that a connecting pipe (20) is arranged at the top of the valve body (2), a first internal thread region (200) is vertically arranged at the center of the surface of the connecting pipe (20) downwards, the first internal thread region (200) is communicated with the interior of the valve body (2), a valve cover (4) is connected to the top of the connecting pipe (20) in a flange mode, a first circular through groove (40) is vertically arranged at the center of the top of the valve cover (4) downwards, a second internal thread region (400) is arranged in the middle of the inner wall of the first circular through groove (40), a third internal thread region (401) is arranged at the bottom of the inner wall of the first circular through groove (40), a valve rod (6) is movably connected in the first circular through groove (40), an external thread region (60) is arranged at the position, located at the middle, of the outer wall of the circumference of the valve rod (6), and a first annular rotating block (, a second annular rotating block (62) is arranged on the circumferential outer wall of the valve rod (6) and close to the first annular rotating block (61), a valve core (7) is arranged on the outer side of the bottom of the valve rod (6), a second circular through groove (71) is formed in the center of the top of the valve core (7), a first annular groove (710) is formed in the bottom of the inner wall of the second circular through groove (71), a second annular groove (711) is formed in the middle of the inner wall of the second circular through groove (71), a flow inlet pipe (21) is arranged on the circumferential outer wall of the valve body (2) and located in the middle, the end portion of the flow inlet pipe (21) located in the valve body (2) is arranged in a downward inclined mode, a flow outlet pipe (22) is arranged at the bottom of the valve body (2), and a fan-shaped reinforcing plate (1) is arranged on the middle lower portion of the circumferential outer wall of, the middle lower part of the outer side of the fan-shaped reinforcing plate (1) is provided with a supporting rod (3) in a downward inclined mode, and the bottom end of the supporting rod (3) is tightly welded with the top of the end part of the outflow pipe (22).

2. The valve having a high strength and high wear resistance valve stem of claim 1, wherein: and a hand wheel (5) is welded at the top end of the valve rod (6).

3. The valve having a high strength and high wear resistance valve stem of claim 1, wherein: the bottom of the valve core (7) is provided with a conical fixed block (70).

4. The valve having a high strength and high wear resistance valve stem of claim 1, wherein: the end edge of the inflow pipe (21) is provided with a first flange plate (210), and the end edge of the outflow pipe (22) is provided with a second flange plate (220).

5. The valve having a high strength and high wear resistance valve stem of claim 1, wherein: the first annular rotating block (61) is located in the first annular groove (710), the shape and size of the first annular rotating block (61) are matched with those of the first annular groove (710), the second annular rotating block (62) is located in the second annular groove (711), the shape and size of the second annular rotating block (62) are matched with those of the second annular groove (711), and the valve rod (6) is connected with the valve core (7) in a rotating mode.

6. The valve having a high strength and high wear resistance valve stem of claim 1, wherein: the valve is characterized in that the first internal thread region (200), the second internal thread region (400) and the third internal thread region (401) are the same, the thread of the first internal thread region (200) is matched with the thread of the external thread region (60), when the valve body (2) is closed, the external thread region (60) is in threaded connection with the first internal thread region (200) and the third internal thread region (401), and when the valve body (2) is opened, the external thread region (60) is in threaded connection with the third internal thread region (401) and the second internal thread region (400).