CN209892765U

CN209892765U - Erosion-proof stop valve

Info

Publication number: CN209892765U
Application number: CN201920673636.0U
Authority: CN
Inventors: 郑腾杰
Original assignee: Taizhou Fengchen Valve Co Ltd
Current assignee: Taizhou Fengchen Valve Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-01-03
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses an anti-erosion stop valve, which comprises a valve body, the inside processing of valve body has the through-hole, the top clearance fit of valve body has the valve gap, the clamping has the sealing washer between the top of valve body and the bottom of valve gap, institute the outer wall of montant and the inner clearance fit of semicircle board, the equal rigid coupling in both ends top has the horizontal pole about a screw thread section of thick bamboo, the top rigid coupling of second threaded rod has the handle. This scour protection loses stop valve, through the valve body, the valve gap, the cooperation of first threaded rod and nut, make valve body and valve gap be convenient for install and dismantle, and then conveniently maintain and inspect its internal component, rethread second threaded rod, a thread section of thick bamboo, the cooperation of montant and valve clack, make the semicircle board can drive the valve clack deformation through rotating, reduce the area of solid-state material contact in valve clack and the internal fluid of valve, prevent that the valve clack from being eroded by solid-state material in the fluid, and then prolong the life of this scour protection loses stop valve.

Description

Erosion-proof stop valve

Technical Field

The utility model relates to a stop valve technical field specifically is an erosion prevention stop valve.

Background

The stop valve is also called stop valve, belong to the forced seal type valve, so when the valve is closed, must exert pressure to the valve clack, in order to force the sealed face not to leak, the opening and closing member of the stop valve is the valve clack of the plug-type, the sealed upper surface is the level or sea conical surface, the valve clack makes the linear motion along the central line of the valve base, also there is the rotary rod type of lifting that can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium, etc., but the stop valve in the prior art, the structure is complicated, it is inconvenient to mount and dismantle, and then cause maintenance and inspection comparatively inconvenient to the valve block inside, and in long-term use, the solid material in the fluid can cause the erosion of different degrees to the valve clack, and then make the.

Disclosure of Invention

An object of the utility model is to provide an anti-erosion stop valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an erosion-preventing stop valve comprises a valve body, wherein a through hole is processed in the valve body, a valve cover is in clearance fit with the top of the valve body, a sealing ring is clamped between the top of the valve body and the bottom of the valve cover, the left side and the right side of the top of the valve body are fixedly connected with a first threaded rod, the outer wall of the first threaded rod is in clearance fit with the bottom of the valve cover, a nut is in threaded connection with the outer wall of the first threaded rod, the bottom of the nut is attached to the top of the valve cover, a threaded cylinder is in threaded connection with the inner portion of the valve cover, a second threaded rod is in threaded connection with the inner wall of the threaded cylinder, a first support is fixedly connected to the bottoms of the left end and the right end of the threaded cylinder, an inclined rod is rotatably connected to the outer end of the first support through a first pin shaft, a second support is rotatably connected to the tail end, two the inner bottom rigid coupling of semicircle board has the third support, two the third support rotates through third round pin axle and links to each other, the below of semicircle board is equipped with the valve clack, the outer wall of valve clack and the inner wall interference fit of through-hole, the top of valve clack links to each other with the bottom joint of semicircle board, the top rigid coupling of third round pin axle has the montant, the bottom rotation of bearing and second threaded rod is passed through at the top of montant links to each other, the outer wall of montant and the inner clearance fit of semicircle board, the equal rigid coupling in both ends top has the horizontal pole about the screw thread section of thick bamboo, the top rigid coupling of second threaded rod has the handle.

Preferably, the outer end of horizontal pole is processed flutedly, the inner wall clearance fit of recess has branch, the outer end rigid coupling of branch has the lid, the left end of lid and the right-hand member interference fit of horizontal pole, the left end rigid coupling of lid has the ring.

Preferably, round holes are processed at the left end and the right end of the valve body.

Preferably, the outer wall of the handle is sleeved with a rubber ring.

Preferably, the outer wall of the cross rod is fixedly connected with a rubber sleeve.

Preferably, the outer wall of the circular ring is machined with grinding grains.

Compared with the prior art, the beneficial effects of the utility model are that: this scour protection loses stop valve, through the valve body, the valve gap, the cooperation of first threaded rod and nut, make valve body and valve gap be convenient for install and dismantle, and then conveniently maintain and inspect its internal component, the rethread down tube, the second threaded rod, a threaded cylinder, the semicircle board, the cooperation of montant and valve clack, make the semicircle board can drive the valve clack deformation through rotating, and then wrap up the valve clack through the semicircle board, reduce the area of solid state material contact in the fluid in valve clack and the valve body, prevent that the valve clack from being eroded by solid state material in the fluid, and then prolong the life of this scour protection loses stop valve.

Drawings

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

FIG. 2 is a schematic view showing the connection relationship between the diagonal member, the second bracket and the semicircular plate in FIG. 1;

FIG. 3 is a schematic view showing the connection of the semicircular plate, the third bracket and the vertical rod in FIG. 2;

fig. 4 is a schematic view of the connection relationship between the cross bar, the support bar and the cover body in fig. 1.

In the figure: 1. the valve body, 2, through-hole, 3, valve gap, 4, sealing washer, 5, first threaded rod, 6, nut, 7, screw thread section of thick bamboo, 8, second threaded rod, 9, first support, 10, first round pin axle, 11, down tube, 12, second round pin axle, 13, second support, 14, semicircle board, 15, third support, 16, third round pin axle, 17, valve clack, 18, montant, 19, bearing, 20, horizontal pole, 21, handle, 22, recess, 23, branch, 24, lid, 25, ring, 26, round hole, 27, rubber circle, 28, rubber sleeve, 29, grind the line.

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.

Referring to fig. 1-4, the present invention provides a technical solution: an erosion-proof stop valve comprises a valve body 1, round holes 26 are processed at the left end and the right end of the valve body 1, the round holes 26 are matched with external bolts to fix the position of the valve body 1, through holes 2 are processed in the valve body 1, a valve cover 3 is in clearance fit with the top of the valve body 1, a sealing ring 4 is clamped between the top of the valve body 1 and the bottom of the valve cover 3, the sealing ring 4 is made of rubber and used for keeping the interior of the valve body 1 sealed, first threaded rods 5 are fixedly connected to the left side and the right side of the top of the valve body 1, the outer wall of each first threaded rod 5 is in clearance fit with the bottom of the corresponding valve cover 3, nuts 6 are in threaded connection with the outer wall of each first threaded rod 5, the first threaded rods 5 are matched with the nuts 6, the position of the valve cover 3 is fixed, the bottom of the nuts 6 is attached to the top of the valve cover 3, threaded cylinders 7, the length of the second threaded rod 8 is greater than that of the threaded cylinder 7, the bottoms of the left end and the right end of the threaded cylinder 7 are fixedly connected with a first support 9, the outer end of the first support 9 is rotatably connected with an inclined rod 11 through a first pin shaft 10, the first pin shaft 10 enables the inclined rod 11 to rotate when stressed, the tail end of the inclined rod 11 is rotatably connected with a second support 13 through a second pin shaft 12, the bottom of the second support 13 is fixedly connected with a semi-circular plate 14, the plane ends of the semi-circular plates 14 are oppositely arranged, the upper parts of the inner ends of the two semi-circular plates 14 are attached, the bottom parts of the inner ends of the two semi-circular plates 14 are fixedly connected with a third support 15, the two third supports 15 are rotatably connected through a third pin shaft 16, the third pin shaft 16 enables the two third supports 14 to rotate when stressed, a valve flap 17 is arranged below the semi-circular plate 14, the outer wall of the valve flap 17 is in interference fit with the inner wall of the through hole 2, a vertical rod 18 is fixedly connected to the top of the third pin 16, the top of the vertical rod 18 is rotatably connected to the bottom of the second threaded rod 8 through a bearing 19, the bearing 19 enables the vertical rod 18 to rotate when being stressed, the outer wall of the vertical rod 18 is in clearance fit with the inner end of the semicircular plate 14, cross rods 20 are fixedly connected to the upper portions of the left end and the right end of the threaded cylinder 7, rubber sleeves 28 are fixedly connected to the outer walls of the cross rods 20, the rubber sleeves 28 are used for increasing friction of the outer wall of the cross rod 12, a handle 21 is fixedly connected to the top of the second threaded rod 8, a rubber ring 27 is sleeved on the outer wall of the handle 21, grooves 22 are machined in the outer end of each cross rod 20, supporting rods 23 are in clearance fit with the inner wall of each groove 22, each groove 11 enables each supporting rod 22 to move left and right when being stressed, a cover body 24 is fixedly connected to the outer end of each supporting rod 23, the left end of each cover, the ring 25 is used for conveniently pulling the cover body 24, the outer wall of the ring 25 is provided with grinding grains 29, and the grinding grains 29 are used for increasing the friction of the outer wall of the ring 25.

When the anti-erosion stop valve is used, the left end and the right end of the valve body 1 are connected with an external pipeline through the matching of the round hole 26 and an external bolt, when fluid enters the valve body 1 from the left end, the cross rod 20 is screwed to drive the threaded cylinder 7 to rotate, the outer wall of the threaded cylinder 7 is in threaded connection with the valve cover 3, the threaded cylinder 7 can move up and down, the semicircular plate 14 is driven to move up and down, the up-and-down movement of the valve clack 17 is controlled to be attached to and separated from the through hole 2 through the interference fit between the outer wall of the valve clack 17 and the inner wall of the through hole 2, the circulation of the fluid in the valve body 1 is controlled, when the valve clack 17 is separated from the through hole 2 and is positioned above the through hole 2, the second threaded rod 8 is driven to rotate through the screwing handle 21, the second threaded cylinder 8 moves upwards, the second threaded cylinder 8 is rotatably connected with the vertical rod 18 through the bearing 19, and because the two third, when the vertical rod 18 moves upwards, the third support 15 drives the two semi-circular plates 14 to rotate outwards, and because the second support 14 is rotatably connected with the inclined rod 11 through the second pin shaft 12, the inclined rod 11 is rotatably connected with the first support 9 through the first pin shaft 10, when the semi-circular plates 14 rotate outwards, the inclined rod 11 does not influence the rotating track, so that the two sides of the valve flap 17 are turned downwards from the middle along with the movement of the semi-circular plates 14, when the valve flap moves to the extrusion limit, the valve flap 17 is wrapped by the semi-circular plates 14, thereby preventing the erosion of solid substances in fluid to the valve flap 17, further prolonging the service life of the stop valve, when the stop valve needs to be closed, the second threaded rod 8 is reversely screwed to enable the two semi-circular plates 14 to be parallel, namely, the original shape of the valve flap 17 can be recovered, when internal elements of the stop valve are damaged, the valve cover 3 is separated from the valve body 1 by screwing the nut 6, thereby facilitating the maintenance and inspection of the interior of the stop valve.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and 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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An erosion prevention stop valve, includes valve body (1), its characterized in that: the valve comprises a valve body (1), a through hole (2) is processed in the valve body (1), a valve cover (3) is in clearance fit with the top of the valve body (1), a sealing ring (4) is clamped between the top of the valve body (1) and the bottom of the valve cover (3), first threaded rods (5) are fixedly connected to the left and right sides of the top of the valve body (1), the outer wall of each first threaded rod (5) is in clearance fit with the bottom of the valve cover (3), a nut (6) is in threaded connection with the outer wall of each first threaded rod (5), the bottom of each nut (6) is attached to the top of the valve cover (3), a threaded cylinder (7) is in threaded connection with the inner portion of the valve cover (3), a second threaded rod (8) is in threaded connection with the inner wall of the threaded cylinder (7), first supports (9) are fixedly connected to the bottoms of the left and right ends of the threaded cylinder (7), and inclined rods (11) are rotatably connected to the outer, the tail end of the inclined rod (11) is connected with a second support (13) through a second pin shaft (12) in a rotating mode, the bottom of the second support (13) is fixedly connected with a semicircular plate (14), the inner bottom of the semicircular plate (14) is fixedly connected with a third support (15), the third supports (15) are connected with each other through a third pin shaft (16) in a rotating mode, a valve clack (17) is arranged below the semicircular plate (14), the outer wall of the valve clack (17) is in interference fit with the inner wall of the through hole (2), the top of the valve clack (17) is connected with the bottom of the semicircular plate (14) in a clamping mode, a vertical rod (18) is fixedly connected with the top of the third pin shaft (16), the top of the vertical rod (18) is connected with the bottom of the second threaded rod (8) through a bearing (19) in a rotating mode, the outer wall of the vertical rod (18) is in clearance fit with the inner end of the semicircular plate (14), and a cross rod (20), and a handle (21) is fixedly connected to the top of the second threaded rod (8).

2. An erosion prevention shut-off valve as defined in claim 1 wherein: the outer end of horizontal pole (20) is processed recess (22), the inner wall clearance fit of recess (22) has branch (23), the outer end rigid coupling of branch (23) has lid (24), the left end of lid (24) and the right-hand member interference fit of horizontal pole (20), the left end rigid coupling of lid (24) has ring (25).

3. An erosion prevention shut-off valve as defined in claim 1 wherein: round holes (26) are processed at the left end and the right end of the valve body (1).

4. An erosion prevention shut-off valve as defined in claim 1 wherein: the outer wall of the handle (21) is sleeved with a rubber ring (27).

5. An erosion prevention shut-off valve as defined in claim 1 wherein: the outer wall of the cross rod (20) is fixedly connected with a rubber sleeve (28).

6. An erosion prevention shut-off valve as defined in claim 2 wherein: the outer wall of the circular ring (25) is provided with grinding grains (29).