CN212616396U

CN212616396U - Gate valve with good protection performance

Info

Publication number: CN212616396U
Application number: CN202020691473.1U
Authority: CN
Inventors: 龙绍伦
Original assignee: 龙绍伦
Current assignee: Zhejiang Wandong Valve Co.,Ltd.
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-26
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a gate valve that protectiveness is good, including valve switch, threaded rod, a valve shell, nut, No. two valve shells, fastening bolt, fixture block, baffle, through-hole, limiting plate, pipe, motion groove, No. one water-stop sheet, No. two water-stop sheets, fixed cover, support, connecting plate and fastening hole. The utility model has the advantages that: the valve shell bottom surface inboard is protruding, No. two valve shell top surface inboard is sunken, connect through nut and fastening bolt, fixed cover inner wall is provided with the screw thread, and threaded rod and fixed cover inner wall are screw thread interlock formula and rotate the connection, wrench movement valve switch, drive threaded rod spiral rising or decline, drive baffle up-and-down motion, adjusting device open and close state, fixture block and baffle top inner wall are rotary type sliding connection, prevent that the baffle from rotating, the limiting plate is bigger than motion groove top connector, prevent that the baffle breaks away from, baffle and water-stop plate No. one, No. two water-stop plate inner walls are hugging closely formula sliding connection, conveniently reduce the liquid leakage.

Description

Gate valve with good protection performance

Technical Field

The utility model relates to a gate valve specifically is a gate valve that protectiveness is good, belongs to hydraulic engineering technical field.

Background

The gate valve is a shutter plate, the moving direction of which is perpendicular to the fluid direction, and the gate valve can only be fully opened and fully closed, but cannot be adjusted and throttled. Gate valves are sealed by the contact of the valve seat and gate plate, and the sealing surface is usually welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate is divided into a rigid gate plate and an elastic gate plate according to the difference of the gate plate. The opening and closing part of the gate valve is a gate plate, the moving direction of the gate plate is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. The gate has two sealing surfaces, the most common mode gate valve has two sealing surfaces forming a wedge shape, the wedge angle varies with the valve parameters, usually 5 °, and the medium temperature is not high and is 2 ° 52'.

The existing device is simple in structure, one of the device and the common device are not provided with limiting plates, the internal parts are easy to fall off when the valve is turned on or off by twisting, the device is limited greatly, the joint of the shell of the common device is smooth, the device is connected in a connecting mode, the sealing performance of the device is weak, the through holes connected vertically are difficult to align, the device is limited greatly, the water-stop plate is not arranged inside the common device, liquid in the pipeline is easy to leak, and the device is limited greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gate valve that protection nature is good for solving above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a gate valve with good protection performance comprises a valve switch, a threaded rod, a first valve shell, a nut, a second valve shell, a fastening bolt, a clamping block, a baffle, a through hole, a limiting plate, a guide pipe, a moving groove, a first water-stop plate, a second water-stop plate, a fixing sleeve, a support, a connecting plate and a fastening hole; the valve switch sets up at the device topmost, the inside support that is provided with of valve switch, support trisection evenly distributed is on valve switch, valve switch center department connecting threaded rod top, fixture block upper surface center department is connected to the threaded rod bottom, the threaded rod passes fixed cover and a valve shell respectively, fixed cover sets up on a valve shell top, a valve shell lower surface and No. two valve shell upper surface connections, connect through nut and fastening bolt between a valve shell and No. two valve shells, the nut is located the fastening bolt top, baffle top cover is on fixture block and threaded rod bottom, the through-hole has been seted up to the baffle lower extreme, the baffle bottom is provided with the limiting plate, the baffle passes No. two valve shell bottoms, pipe center, water-stop sheet center, a, No. two water-stop sheet centers and motion groove top, the limiting plate is located the motion inslot, nut and fastening bolt all are provided with eight, nut and fastening bolt are at a valve shell and No. two valve shell junction border position evenly distributed, No. one water-stop sheet and No. two water-stop sheets are located inside the pipe, No. one the water-stop sheet sets up on pipe middle part inner wall top, No. two the water-stop sheet sets up in pipe middle part inner wall bottom, the motion groove sets up in pipe bottom center department, the pipe both sides all are provided with the connecting plate, eight fastening holes have been seted up on the connecting plate.

Preferably, for the convenience of connecting two valve shells, the surface of the first valve shell bottom is connected with the surface of the inner side protruding, the surface of the second valve shell top is connected with the surface of the inner side recessed, and the first valve shell and the second valve shell are connected in a thread rotating mode through a nut and a fastening bolt.

Preferably, in order to facilitate the up-and-down movement of the threaded rod, the inner wall of the fixed sleeve is provided with threads, and the threaded rod and the inner wall of the fixed sleeve are in threaded engagement type rotation connection.

Preferably, in order to prevent the baffle from rotating, the fixture block and the threaded rod are connected in a fastening mode through welding, and the fixture block and the inner wall of the top end of the baffle are in rotary sliding connection.

Preferably, in order to prevent the baffle from separating from the motion groove, the limiting plate is larger than the connecting port at the top end of the motion groove, and the lower ends of the limiting plate and the baffle move in the vertical direction in the motion groove.

Preferably, in order to reduce liquid leakage, the baffle is in close-fitting sliding connection with the inner wall of the first water-stop plate and the inner wall of the second water-stop plate, and the area of the first water-stop plate is larger than that of the second water-stop plate.

The utility model has the advantages that: the gate valve with good protection performance is reasonable in design, the inner side of the bottom connecting surface of the first valve shell is protruded, the inner side of the top connecting surface of the second valve shell is recessed, the first valve shell and the second valve shell are connected in a screw thread rotary mode through a screw cap and a fastening bolt, the structure greatly improves the connection stability of the two valve shells, enhances the sealing performance, is convenient to disassemble and assemble through the screw cap and the fastening bolt, the inner wall of a fixing sleeve is provided with screw threads, a screw rod and the inner wall of the fixing sleeve are in screw thread occlusion type rotary connection, a valve switch is twisted to drive the screw rod to spirally ascend or descend, the baffle is convenient to drive to move up and down, an adjusting device is in an opening and closing state, a clamping block and the screw rod are in fastening type connection through welding, the clamping block and the inner wall at the top end of the baffle are in rotary type sliding connection, and limiting plate and baffle lower extreme move in the inside vertical direction of motion groove, and this structure setting can prevent that the baffle from breaking away from the motion groove when the upward movement, and baffle and water-stop sheet, No. two water-stop sheet inner walls are hugging closely formula sliding connection, and No. one the water-stop sheet area is greater than No. two water-stop sheets, sets up the water-stop sheet, conveniently alleviates the outside condition of leaking of the liquid in the pipe.

Drawings

FIG. 1 is a schematic view of the internal structure of the gate valve of the present invention;

FIG. 2 is a schematic view of the valve switch structure of the present invention;

fig. 3 is a schematic diagram of the connecting plate structure of the present invention.

In the figure: 1. the valve comprises a valve switch, 2, a threaded rod, 3, a valve shell, 4, a nut, 5, a valve shell II, 6, a fastening bolt, 7, a clamping block, 8, a baffle, 9, a through hole, 10, a limiting plate, 11, a guide pipe, 12, a moving groove, 13, a water-stop plate, 14, a water-stop plate II, 15, a fixing sleeve, 16, a support, 17, a connecting plate, 18 and a fastening hole.

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 to 3, a gate valve with good protection performance includes a valve switch 1, a threaded rod 2, a first valve housing 3, a nut 4, a second valve housing 5, a fastening bolt 6, a clamping block 7, a baffle plate 8, a through hole 9, a limiting plate 10, a conduit 11, a moving groove 12, a first water stop plate 13, a second water stop plate 14, a fixing sleeve 15, a bracket 16, a connecting plate 17 and a fastening hole 18; the valve switch 1 is arranged at the topmost end of the device, a support 16 is arranged in the valve switch 1, the support 16 is evenly distributed on the valve switch 1 in trisection, the center of the valve switch 1 is connected with the top end of a threaded rod 2, the bottom end of the threaded rod 2 is connected with the center of the upper surface of a clamping block 7, the threaded rod 2 respectively penetrates through a fixing sleeve 15 and a valve shell 3, the fixing sleeve 15 is arranged at the top end of the valve shell 3, the lower surface of the valve shell 3 is connected with the upper surface of a valve shell 5, the valve shell 3 is connected with the valve shell 5 through a nut 4 and a fastening bolt 6, the nut 4 is positioned above the fastening bolt 6, the top end of a baffle plate 8 is sleeved on the bottom ends of the clamping block 7 and the threaded rod 2, the lower end of the baffle plate 8 is provided with a through hole 9, and, the baffle 8 sequentially penetrates through the bottom of a second valve shell 5, the center of a guide pipe 11, the center of a first water-stop plate 13, the center of a second water-stop plate 14 and the top end of a moving groove 12, the limiting plate 10 is located inside the moving groove 12, eight screw caps 4 and eight fastening bolts 6 are arranged, the screw caps 4 and the fastening bolts 6 are evenly distributed at the edge position of the joint of the first valve shell 3 and the second valve shell 5, the first water-stop plate 13 and the second water-stop plate 14 are located inside the guide pipe 11, the first water-stop plate 13 is arranged at the top end of the inner wall of the middle of the guide pipe 11, the second water-stop plate 14 is arranged at the bottom end of the inner wall of the middle of the guide pipe 11, the moving groove 12 is arranged at the center of the bottom of the guide pipe 11, connecting plates 17 are arranged on two.

The bottom of the first valve shell 3 is connected with the inner side of the surface, the top of the second valve shell 5 is connected with the inner side of the surface, the first valve shell 3 and the second valve shell 5 are connected in a screw thread rotating mode through the screw cap 4 and the fastening bolt 6, the structure greatly improves the stability of the connection of the two valve shells, enhances the sealing property, is connected through the screw cap 4 and the fastening bolt 6, is convenient to disassemble and assemble, the inner wall of the fixing sleeve 15 is provided with screw threads, the screw rod 2 and the inner wall of the fixing sleeve 15 are in screw thread occlusion type rotating connection, the valve switch 1 is twisted to drive the screw rod 2 to spirally ascend or descend so as to conveniently drive the baffle 8 to move up and down, the adjusting device is in an opening and closing state, the clamping block 7 and the screw rod 2 are in fastening type connection through welding, the clamping block 7 and the inner wall at the top end, limiting plate 10 is greater than the 12 top connectors of motion groove, and limiting

plate

10 and 8 lower extremes of baffle move in the inside vertical direction of motion groove 12, and this structure setting can prevent that baffle 8 from breaking away from motion groove 12 when the upward movement, baffle 8 and No. 13, No. two water-stop sheets 14 inner walls are hugging closely formula sliding connection, and No. 13 area of water-stop sheet are greater than No. two water-stop sheets 14, set up the water-stop sheet, conveniently alleviate the outside condition of leaking of liquid in the pipe 11.

The working principle is as follows: when using this kind of gate valve that protectiveness is good, connect No. one valve shell 3 and No. two valve shells 5 through nut 4 and fastening bolt 6, with the device through connecting plate 17 and the fastening hole 18 of pipe 11 both sides install on corresponding pipeline, wrench movement valve switch 1, drive threaded rod 2 spiral rising or decline, drive baffle 8 up-and-down motion, through-hole 9 then the device is the complete open mode with pipe 11 inner wall when on same level.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a gate valve that protectiveness is good which characterized in that: the valve comprises a valve switch (1), a threaded rod (2), a first valve shell (3), a nut (4), a second valve shell (5), a fastening bolt (6), a clamping block (7), a baffle (8), a through hole (9), a limiting plate (10), a guide pipe (11), a moving groove (12), a first water-stop plate (13), a second water-stop plate (14), a fixing sleeve (15), a support (16), a connecting plate (17) and a fastening hole (18); the valve switch (1) is arranged at the topmost end of the device, a support (16) is arranged inside the valve switch (1), the support (16) is evenly distributed on the valve switch (1) in a trisection manner, the center of the valve switch (1) is connected with the top end of a threaded rod (2), the bottom end of the threaded rod (2) is connected with the upper surface center of a clamping block (7), the threaded rod (2) penetrates through a fixed sleeve (15) and a valve shell (3) respectively, the fixed sleeve (15) is arranged at the top end of the valve shell (3), the lower surface of the valve shell (3) is connected with the upper surface of a valve shell (5) respectively, the valve shell (3) and the valve shell (5) are connected through a nut (4) and a fastening bolt (6), the nut (4) is arranged above the fastening bolt (6), and the top end of a baffle plate (8) is sleeved on the bottom ends of the clamping block (7) and the threaded rod (2), through-hole (9) has been seted up to baffle (8) lower extreme, baffle (8) bottom is provided with limiting plate (10), baffle (8) pass No. two valve shell (5) bottoms, pipe (11) center, water-stop sheet (13) center, No. two water-stop sheet (14) center and motion groove (12) top respectively in proper order, limiting plate (10) are located inside motion groove (12), nut (4) and fastening bolt (6) all are provided with eight, nut (4) and fastening bolt (6) are at valve shell (3) and No. two valve shell (5) junction border position evenly distributed, No. one water-stop sheet (13) and No. two water-stop sheet (14) are located inside pipe (11), No. one water-stop sheet (13) sets up on pipe (11) middle part inner wall top, No. two water-stop sheet (14) set up in pipe (11) middle part inner wall bottom, the movement groove (12) is arranged at the center of the bottom of the guide pipe (11), connecting plates (17) are arranged on two sides of the guide pipe (11), and eight fastening holes (18) are formed in the connecting plates (17).

2. The gate valve with good protection performance of claim 1, wherein: the bottom of the first valve shell (3) is connected with the surface which is convex on the inner side, the top of the second valve shell (5) is connected with the surface which is concave on the inner side, and the first valve shell (3) and the second valve shell (5) are connected in a thread rotating mode through a nut (4) and a fastening bolt (6).

3. The gate valve with good protection performance of claim 1, wherein: the inner wall of the fixed sleeve (15) is provided with threads, and the threaded rod (2) and the inner wall of the fixed sleeve (15) are in threaded engagement type rotating connection.

4. The gate valve with good protection performance of claim 1, wherein: the fixture block (7) and the threaded rod (2) are connected in a fastening mode through welding, and the fixture block (7) and the inner wall of the top end of the baffle (8) are in rotary sliding connection.

5. The gate valve with good protection performance of claim 1, wherein: the limiting plate (10) is larger than a connecting port at the top end of the moving groove (12), and the lower ends of the limiting plate (10) and the baffle (8) move in the vertical direction in the moving groove (12).

6. The gate valve with good protection performance of claim 1, wherein: baffle (8) and a water-stop sheet (13), No. two water-stop sheet (14) inner walls are hugging closely formula sliding connection, and a water-stop sheet (13) area is greater than No. two water-stop sheet (14).