Novel sliding column valve

Abstract

The utility model relates to the technical field of valves, in particular to a novel sliding column valve which comprises a sliding column, a valve body and a valve cover, the valve cover is movably installed at the top end of the valve body, the sliding column is arranged on the inner side of the valve body in a sliding mode, one end of the upper portion of the valve body is in threaded connection with a body cover bolt, and the outer side of the body cover bolt is in threaded connection with the valve cover. A valve rod is installed in the valve deck in a threaded mode, and the lower end of the valve rod is fixedly connected with the top end of the sliding column. According to the novel sliding column valve, when the valve needs to be opened, the hand wheel is rotated anticlockwise, the sliding column is gradually separated from the lower sealing ring and moves upwards, the valve port in one side of the valve body is also gradually opened, the lower sealing ring is responsible for closing the valve port at the moment, and when the valve needs to be closed, the sliding column slides up and down to control the valve to be opened; due to the fact that the sliding column can avoid the problem that when an original valve is pressed downwards, residual welding slag of a welded pipeline is left on a sealing valve port and extruded to damage the integrity of the valve port, and the service life of the novel sliding column valve is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a new type slide column valve. BACKGROUND

[0002] The stop valve is also called a stop valve, which is a forced sealing type valve. When the valve is closed, pressure must be applied to the valve disc to ensure that the sealing surface does not leak. The opening and closing part of the stop valve is a plug-shaped valve disc, and the sealing surface can be a flat surface or a conical surface. The valve disc moves linearly along the center line of the valve seat.

[0003] For example, the authorized announcement number "CN220962615U" is named a stop valve, which can effectively prevent water pressure from lifting the valve disc and causing water leakage; a guide is also provided to prevent the valve rod from being eccentric and unable to align with the valve seat. However, there are many types of valves in the world, and the stop valve is one of the common types. However, in the process of using the traditional stop valve, once a relatively hard particle falls on the sealing valve port, the valve seat will be slightly deformed when the valve disc is closed. If the valve is frequently opened and closed, the originally smooth valve port will become uneven, and the sealing performance of the valve will be damaged. Especially for the stop valve used on ships, the medium is water and steam, and there are a lot of welding slag left in the pipeline during pipeline welding. After a few times of opening and closing of the ordinary stop valve, the sealing surface of the valve will be damaged, and the valve will be disabled. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problem of short service life of the stop valve, and provides a new type slide column valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A new type slide column valve is designed, which comprises a slide column, a valve body and a valve cover. The valve cover is movably installed at the top end of the valve body. The slide column is slidably arranged on the inner side of the valve body. A body cover bolt is threadedly connected to the upper end of the valve body. The outer side of the body cover bolt is connected with the valve cover in a threaded manner. A valve rod is threadedly installed in the inner part of the valve cover. The lower end of the valve rod is fixedly connected with the top end of the slide column.

[0007] Preferably, a lower sealing ring is fixedly connected to the lower end of the inner side of the valve body. An upper sealing ring is fixedly connected to the upper side of the inner side of the valve body. The inner wall of the upper sealing ring is slidably connected with the outer wall of the slide column. The inner wall of the lower sealing ring is slidably connected with the outer wall of the slide column. A support is fixedly connected between the lower sealing ring and the upper sealing ring.

[0008] Preferably, a nut is threaded to the top of the valve stem, a flat washer is movably connected to the bottom of the nut, a handwheel is movably mounted below the nut, and the lower end of the handwheel is fixedly connected to the valve stem by the nut.

[0009] Preferably, a pressure sleeve is fixedly connected above the upper sealing ring, the top end of the pressure sleeve abuts against the lower end of the inner wall of the valve cover, the outer wall of the pressure sleeve is movably connected to the inner wall of the valve body, and the inner wall of the pressure sleeve is slidably connected to the outer wall of the slide column.

[0010] Preferably, water passages are fixedly provided at both ends of the valve body, and the interiors of the two water passages are connected through the interior of the valve body. A mating mounting hole is fixedly provided on the outer side of both ends of the valve body.

[0011] The novel sliding valve proposed in this utility model has the following advantages: To open the valve, turn the handwheel counterclockwise, and the sliding column gradually moves upward away from the lower sealing ring. The valve port on one side of the valve body also gradually opens. At this time, the lower sealing ring is responsible for closing the valve port. When it is necessary to close the valve, the valve is opened by sliding the sliding column up and down. Because the sliding column can avoid the problem that welding slag left on the sealing valve port when the original valve is pressed down, which is squeezed and damages the integrity of the valve port, the service life of the novel sliding valve is improved. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0013] Figure 2 for Figure 1 A frontal sectional view;

[0014] Figure 3 for Figure 2 Enlarged sectional view of section A in the middle;

[0015] Figure 4 for Figure 2 Enlarged sectional view of section B in the middle;

[0016] Figure 5 for Figure 2 Enlarged sectional view of section C.

[0017] In the diagram: 1. Sliding column, 2. Valve body, 3. Lower sealing ring, 4. Upper sealing ring, 5. Valve cover, 6. Nut, 7. Flat washer, 8. Handwheel, 9. Valve stem, 10. Body cover bolt, 11. Pressure sleeve, 12. Bracket, 13. Water passage, 14. Connecting mounting hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Example 1:

[0020] Please refer to Figures 1-5 : In this embodiment, a new type of slide valve, including slide 1, valve body 2 and valve cover 5, valve cover 5 is movably mounted on the top end of valve body 2, slide 1 is slidably arranged in the inside of valve body 2, slide 1 can move up and down along the cavity inside valve body 2, the upper end of valve body 2 is threadedly connected with body cover bolt 10, body cover bolt 10 is connected with valve cover 5 and lower valve body 2 together by thread connection, the outside of body cover bolt 10 is threadedly connected with valve cover 5, the inside of valve cover 5 is threadedly connected with valve stem 9, the forward and reverse rotation of valve stem 9 can lift inside valve cover 5, the lower end of valve stem 9 is fixedly connected with the top end of slide 1.

[0021] The lower end of the inside of valve body 2 is fixedly connected with lower sealing ring 3, lower sealing ring 3 and upper sealing ring 4 are both made of rubber material, the upper end of the inside of valve body 2 is fixedly connected with upper sealing ring 4, the inner wall of upper sealing ring 4 is slidably connected with the outer wall of slide 1, lower sealing ring 3 and upper sealing ring 4 are arranged in the middle and lower part of the inside of valve body 2, for improving the leakage-proof sealing effect inside slide valve, the inner wall of lower sealing ring 3 is slidably connected with the outer wall of slide 1, to open the valve, rotate hand wheel 8 counterclockwise, slide 1 gradually separates from lower sealing ring 3 and moves upward while hand wheel 8 rotates.

[0022] The valve port on one side of valve body 2 is also gradually opened, when hand wheel 8 is rotated counterclockwise to the top end, the valve is fully opened, at this time, lower sealing ring 3 is responsible for closing the valve port, upper sealing ring 4 replaces the packing and is responsible for the sealing of the upper part of the inside of valve body 2, when it is needed to close the valve, rotate hand wheel 8 clockwise, slide 1 starts to move downward, when hand wheel 8 stops rotating, slide 2 has been completely inserted into the inside of lower sealing ring 3, the valve is closed, support 12 is fixedly connected between lower sealing ring 3 and upper sealing ring 4;

[0023] By making lower sealing ring 3 and upper sealing ring 4 both of rubber material, and arranging lower sealing ring 3 and upper sealing ring 4 in the middle and lower part of the inside of valve body 2, the leakage-proof sealing effect inside slide valve is improved, to open the valve, rotate hand wheel 8 counterclockwise, slide 1 gradually separates from lower sealing ring 3 and moves upward while hand wheel 8 rotates, the valve port on one side of valve body 2 is also gradually opened.

[0024] When hand wheel 8 is rotated counterclockwise to the top end, the valve is fully opened, at this time, lower sealing ring 3 is responsible for closing the valve port, upper sealing ring 4 replaces the packing and is responsible for the sealing of the upper part of the inside of valve body 2, when it is needed to close the valve, rotate hand wheel 8 clockwise, slide 1 starts to move downward, when hand wheel 8 stops rotating, slide 2 has been completely inserted into the inside of lower sealing ring 3, the valve is closed, by controlling the opening of the valve through the up and down sliding of slide 1, because slide can avoid the problem that the welding slag left on the sealing valve port by pressing the original valve downward is squeezed and destroys the integrity of the valve port, the service life of the new type of slide valve is improved.

[0025] The top end of the valve stem 9 is threadedly connected with a nut 6, the lower end of the nut 6 is movably connected with a flat gasket 7 made of rubber, the nut 6 is threadedly rotated on the connection between the hand wheel 8 and the top end of the valve stem 9, so as to realize the connection and fixation of the hand wheel 8 and the valve stem 9, the lower end of the hand wheel 8 is movably connected with the nut 6, and the lower end of the hand wheel 8 is fixedly connected with the valve stem 9 through the nut 6.

[0026] The upper end of the upper sealing ring 4 is fixedly connected with a pressing sleeve 11, the pressing sleeve 11 is used for extruding the upper valve cover 5 downward to act on the upper sealing ring 4, so as to limit and fix the upper sealing ring 4 and the lower sealing ring 3 on both sides of the support 12, the top end of the pressing sleeve 11 abuts against the lower end of the inner wall of the valve cover 5, the outer wall of the pressing sleeve 11 is movably connected with the inner wall of the valve body 2, and the inner wall of the pressing sleeve 11 is slidably connected with the outer wall of the sliding column 1.

[0027] Working principle:

[0028] The novel sliding column valve is used in the occasion of water or steam conveying, the novel sliding column valve can be fixed on the pipeline for water or steam conveying in a bolt locking installation mode through the butt joint installation holes at both ends;

[0029] Main structure of the novel sliding column valve:

[0030] The sliding column 1 is slidably arranged on the inner side of the valve body 2, the sliding column 1 can move up and down along the cavity in the valve body 2, the body cover bolt 10 threadedly connects the valve cover 5 and the lower valve body 2 together, and the valve stem 9 can be lifted up and down in the inner side of the valve cover 5 through forward and reverse rotation;

[0031] The novel sliding column valve prevents welding damage to the valve structure:

[0032] The lower sealing ring 3 and the upper sealing ring 4 are made of rubber material and are arranged in the middle and lower parts of the inner side of the valve body 2, so as to improve the leakage-proof sealing effect of the inner side of the sliding column valve, to open the valve, the hand wheel 8 is counterclockwise rotated, the sliding column 1 gradually moves upward and separates from the lower sealing ring 3 while the hand wheel 8 is rotated, the valve port on one side of the valve body 2 is also gradually opened, when the hand wheel 8 is counterclockwise rotated to the top end, the valve is fully opened, at this time, the lower sealing ring 3 is responsible for closing the valve port, and the upper sealing ring 4 is responsible for sealing the upper part of the inner side of the valve body 2 instead of the filler, when the valve needs to be closed, the hand wheel 8 is clockwise rotated, the sliding column 1 starts to move downward, and when the hand wheel 8 stops rotating, the sliding column 2 has been completely inserted into the inner side of the lower sealing ring 3, and the valve is closed, the opening of the valve is controlled by the up-and-down sliding of the sliding column 1, because the sliding column can avoid the problem that the welding slag remaining in the original valve downward pressing welding pipeline is extruded and damaged to the integrity of the sealing valve port;

[0033] Hand wheel connection structure and limiting structure of the novel sliding column valve:

[0034] The lower part of the nut 6 is movably connected with a flat pad 7 made of rubber pad, the nut 6 is threaded on the top end of the hand wheel 8 and the valve stem 9, and can realize the connection and fixation of the hand wheel 8 and the valve stem 9.

[0035] The upper part of the upper sealing ring 4 is fixedly connected with a pressing sleeve 11, the pressing sleeve 11 is used for extruding the upper valve cover 5 downwards to act on the upper part of the upper sealing ring 4, so that the upper sealing ring 4 and the lower sealing ring 3 on both sides of the support 12 are limited and fixed.

[0036] Embodiment 2:

[0037] Please refer to Figures 1-5 In the embodiment, the novel sliding stem valve further comprises two water passing channels 13 fixedly arranged at both ends of the valve body 2, the water passing channels 13 are used for inputting steam water medium on one side into the valve, and then discharging the steam water medium in the other water passing channels 13, the sliding stem 1 is used for limiting medium transmission in the process of conveying the medium, the interiors of the two water passing channels 13 are connected through the interior of the valve body 2, and butt joint mounting holes 14 are fixedly arranged at the outer sides of both ends of the valve body 2, the butt joint mounting holes 14 can conveniently use the externally arranged locking bolt structure to install the novel sliding stem valve on the ship pipeline for use.

[0038] Working principle:

[0039] The water passing channels 13 are used for inputting steam water medium on one side into the valve, and then discharging the steam water medium in the other water passing channels 13, the sliding stem 1 is used for limiting medium transmission in the process of conveying the medium, and the butt joint mounting holes 14 can conveniently use the externally arranged locking bolt structure to install the novel sliding stem valve on the ship pipeline for use.

[0040] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of claims.

Claims

1. A novel sliding valve, comprising a sliding column (1), a valve body (2), and a valve cover (5), wherein the valve cover (5) is movably mounted on the top of the valve body (2), and the sliding column (1) is slidably disposed on the inner side of the valve body (2), characterized in that: The upper end of the valve body (2) is threaded with a body cover bolt (10), the outer side of the body cover bolt (10) is threadedly connected to the valve cover (5), and the valve stem (9) is installed on the internal thread of the valve cover (5). The lower end of the valve stem (9) is fixedly connected to the top end of the slide column (1).

2. The novel slide valve according to claim 1, characterized in that: A lower sealing ring (3) is fixedly connected to the lower inner side of the valve body (2), and an upper sealing ring (4) is fixedly connected to the upper inner side of the valve body (2). The inner wall of the upper sealing ring (4) is slidably connected to the outer wall of the slide column (1), and the inner wall of the lower sealing ring (3) is slidably connected to the outer wall of the slide column (1). A bracket (12) is fixedly connected between the lower sealing ring (3) and the upper sealing ring (4).

3. The novel slide valve according to claim 1, characterized in that: The valve stem (9) is threaded with a nut (6) at its top end. A flat washer (7) is movably connected to the bottom of the nut (6). A handwheel (8) is movably installed below the nut (6). The lower end of the handwheel (8) is fixedly connected to the valve stem (9) through the nut (6).

4. The novel slide valve according to claim 2, characterized in that: A pressure sleeve (11) is fixedly connected above the upper sealing ring (4). The top end of the pressure sleeve (11) abuts against the lower end of the inner wall of the valve cover (5). The outer wall of the pressure sleeve (11) is movably connected to the inner wall of the valve body (2). The inner wall of the pressure sleeve (11) is slidably connected to the outer wall of the slide column (1).

5. The novel slide valve according to claim 1, characterized in that: Water passages (13) are fixedly provided at both ends of the valve body (2), and the interiors of the two water passages (13) are connected through the interior of the valve body (2). A mating mounting hole (14) is fixedly provided on the outer side of both ends of the valve body (2).

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