High-pressure stop valve

Abstract

The high-pressure stop valve comprises a valve body, a switch mechanism, a filter screen, an impurity collecting box and a limiting guide rod, a closure channel is formed in the valve body, the switch mechanism extending into the valve body is installed on the valve body, a check ring is fixed to the left side of the interior of the valve body, and the filter screen is detachably installed on the left side of the check ring. An impurity collecting box is installed on the portion, below the left side of the filter screen, of the valve body, the switching mechanism comprises a threaded sleeve, a threaded rod and a plugging piece, the threaded sleeve is rotationally connected to the valve body, the threaded rod extending into the valve body is installed in the threaded sleeve, and the plugging piece is fixed to the bottom of the threaded rod and located over the cut-off channel; a limiting guide rod is fixed to the left side of the threaded rod and extends into the valve body, and a cleaning brush used for cleaning the filter screen is fixed to the bottom of the limiting guide rod. The filter has a filtering function, and is convenient to clean and not easy to block.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a high-pressure stop valve. Background Art

[0002] A high-pressure globe valve is a mechanical device used to shut off or regulate the flow of fluid. The closing principle of a globe valve is to rely on the pressure of the valve stem to force the sealing surface of the valve disc to tightly fit the sealing surface of the valve seat, thereby preventing the flow of the medium. High-pressure globe valves are often used in fluid systems with high pressure and fast flow rates.

[0003] The existing high-pressure stop valve does not have a filtering function. When there are more impurities in the fluid, the impurities are easily accumulated inside the stop valve after long-term use, causing blockage. Therefore, in view of the above situation, there is an urgent need to develop a high-pressure stop valve with a filtering function, which is easy to clean and not easy to clog, so as to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of the present utility model is to provide a high-pressure stop valve to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-pressure stop valve comprises a valve body, a switching mechanism, a filter, an impurity collection box and a limiting guide rod, wherein a shutoff channel is provided in the valve body, the switching mechanism extending into the interior of the valve body is installed on the valve body, a retaining ring is fixed on the left side of the interior of the valve body, the filter is detachably mounted on the left side of the retaining ring, and the impurity collection box is mounted on the valve body below the left side of the filter, the switching mechanism comprises: a threaded sleeve, a threaded rod and a blocking piece, the threaded sleeve is rotatably connected to the valve body, the threaded rod extending into the valve body is mounted in the threaded sleeve, the blocking piece is fixed at the bottom of the threaded rod, the blocking piece is located directly above the shutoff channel, a limiting guide rod is fixed on the left side of the threaded rod, the limiting guide rod extends into the valve body, and a cleaning brush for cleaning the filter is fixed at the bottom of the limiting guide rod.

[0007] Preferably, the filter screen is detachably fixed to the retaining ring by screws, and the impurity collecting box is detachably fixed to the valve body by screws.

[0008] Preferably, the cleaning brush is located on the left side of the filter.

[0009] Preferably, the limiting guide rod is slidably connected to the valve body.

[0010] Preferably, a rotating handle is fixed on the outer side of the threaded sleeve.

[0011] The beneficial effects of the present utility model are as follows: when the high-pressure stop valve is used, water flows in from the left end of the valve body, and the filter screen filters out impurities in the water flow. The threaded sleeve is driven to rotate by turning the rotary handle, and the threaded rod is driven to move up and down by the rotation of the threaded sleeve, and the blocking piece is driven to move up and down by the threaded rod. When the blocking piece moves into the intercepting channel, it blocks the water flow in the valve body, and when the blocking piece is removed from the intercepting channel, the water flow can flow in the valve body. In addition, when the threaded rod moves up and down, it drives the limit guide rod to move up and down, and the limit guide rod drives the cleaning brush to move up and down. The cleaning brush moves up and down to clean up impurities accumulated on the filter screen, and the impurities fall into the impurity collection box and are collected. After long-term use, the impurity collection box is removed and the impurities are poured out. In summary, the present utility model has a filtering function, is easy to clean, and is not easy to clog. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0014] Figure 3 It is an internal sectional view of the present invention.

[0015] Figure 4 For this utility model Figure 3 Partial view at point A in the middle.

[0016] Figure 5 It is a partial structural diagram of the utility model.

[0017] Legend:

[0018] 1. Valve body; 101. Cut-off channel; 102. Retaining ring; 2. Switch mechanism; 201. Threaded sleeve; 2021. Rotating handle; 202. Threaded rod; 203. Sealing piece; 3. Filter screen; 4. Impurity collection box; 5. Limit guide rod; 501. Cleaning brush. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Specific examples are given below.

[0021] See also Figures 1 to 5 In an embodiment of the present utility model, a high-pressure stop valve includes a valve body 1, a switch mechanism 2, a filter 3, an impurity collection box 4 and a limiting guide rod 5. A cutoff channel 101 is provided in the valve body 1, and the switch mechanism 2 extending to the interior thereof is installed on the valve body 1. A retaining ring 102 is fixed to the left side of the interior of the valve body 1, and the filter 3 is detachably installed on the left side of the retaining ring 102. The impurity collection box 4 is installed on the valve body 1 below the left side of the filter 3. The filter 3 is detachably fixed to the retaining ring 102 by screws, and the impurity collection box 4 is detachably fixed to the valve body 1 by screws. The switch mechanism 2 includes: a threaded sleeve 201, a threaded rod 202 and a blocking piece 203. The threaded sleeve 201 is rotatably connected to the valve body 1, a rotating handle 2021 is fixed to the outside of the threaded sleeve 201, and the threaded rod 202 extending into the valve body 1 is installed in the threaded sleeve 201, and the blocking piece 203 is fixed to the bottom of the threaded rod 202, and the blocking piece 203 is located just above the intercepting channel 101, and a limiting guide rod 5 is fixed to the left side of the threaded rod 202, and the limiting guide rod 5 extends into the valve body 1, and the limiting guide rod 5 is slidingly connected to the valve body 1, and the movement of the threaded rod 202 can be restricted by the limiting guide rod 5 so that it cannot rotate and can only move in a straight line. A cleaning brush 501 for cleaning the filter screen 3 is fixed to the bottom of the limiting guide rod 5, and the cleaning brush 501 is located on the left side of the filter screen 3. The left end of the valve body 1 is the water inlet.

[0022] Working principle: When the high-pressure stop valve is in use, water flows into the left end of the valve body 1 and the impurities in the water flow are filtered out by the filter screen 3. The threaded sleeve 201 is driven to rotate by rotating the rotary handle 2021, and the threaded sleeve 201 is driven to rotate by the rotation of the threaded rod 202, which drives the blocking piece 203 to move up and down by the threaded rod 202. When the blocking piece 203 moves into the intercepting channel 101, it blocks the water flow in the valve body 1. When the blocking piece 203 is removed from the intercepting channel 101, the water flow can flow in the valve body 1. In addition, when the threaded rod 202 moves up and down, it will drive the limiting guide rod 5 to move up and down, and the cleaning brush 501 is driven up and down by the limiting guide rod 5 to move up and down. The impurities accumulated on the filter screen 3 are cleaned up by the cleaning brush 501 moving up and down, and the impurities fall down into the impurity collecting box 4 and are collected. After long-term use, the impurity collecting box 4 can be removed and the impurities can be poured out.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-pressure stop valve, characterized in that: The invention comprises a valve body (1), a switch mechanism (2), a filter screen (3), an impurity collection box (4) and a limiting guide rod (5), wherein a cut-off channel (101) is provided in the valve body (1), the switch mechanism (2) extending into the interior of the valve body (1) is installed on the valve body (1), a retaining ring (102) is fixed on the left side of the interior of the valve body (1), the filter screen (3) is detachably installed on the left side of the retaining ring (102), the impurity collection box (4) is installed on the valve body (1) below the left side of the filter screen (3), and the switch mechanism (2) comprises: a threaded sleeve (201), a threaded rod (202) and a sealing ring (203). The blocking piece (203) is provided in the threaded sleeve (201) and is rotatably connected to the valve body (1). The threaded sleeve (201) is provided with the threaded rod (202) extending into the valve body (1). The blocking piece (203) is fixed to the bottom of the threaded rod (202). The blocking piece (203) is located directly above the intercepting channel (101). A limiting guide rod (5) is fixed to the left side of the threaded rod (202). The limiting guide rod (5) extends into the valve body (1). A cleaning brush (501) for cleaning the filter screen (3) is fixed to the bottom of the limiting guide rod (5).

2. The high-pressure shut-off valve according to claim 1, characterized in that: The filter screen (3) is detachably fixed to the retaining ring (102) via screws, and the impurity collection box (4) is detachably fixed to the valve body (1) via screws.

3. The high-pressure shut-off valve according to claim 1, characterized in that: The cleaning brush (501) is located on the left side of the filter screen (3).

4. The high-pressure shut-off valve according to claim 1, characterized in that: The limiting guide rod (5) is slidably connected to the valve body (1).

5. The high-pressure stop valve according to claim 1, characterized in that: A rotating handle (2021) is fixed to the outside of the threaded sleeve (201).

Images