Stop valve

Abstract

The utility model belongs to the technical field of valves, and discloses a stop valve which comprises a valve cover, a valve body is fixedly connected to the bottom end of the valve cover, a sealing seat is fixedly connected to the interior of the valve body, a valve element is arranged in the sealing seat in an attached mode, a valve rod is fixedly connected to the top end of the valve element, and a connecting ring is rotationally connected to the lower portion of the valve element. A connecting rod is slidably connected to the interior of the connecting ring, a baffle is fixedly connected to one side of the connecting rod, and a water outlet pipe is fixedly connected to the outer side of the valve body. By means of the technical scheme, the problem that in the prior art, after a stop valve is used for a period of time, water resource leakage caused by aging of internal parts cannot be effectively prevented is solved; the problems that in the prior art, the sealing effect is poor, and if maintenance is not carried out in time, unnecessary resource waste is caused, economic losses are increased, and practicability is not high are solved.

Description

Technical Field

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

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage. However, after the stop valve has been used for a period of time, water will seep out due to aging of internal parts. If it is not discovered and repaired in time, it will cause waste of resources and increase losses.

[0003] At the same time, a stop valve with application number 202120493468.4 is disclosed, comprising a valve body with an internal channel, the valve body having a cut-off assembly for cutting off the internal channel of the valve body, the cut-off assembly comprising a sliding rod, an adjusting column, a sealing portion and a sealing cover for cutting off the internal channel of the valve body, the sealing cover being fixed on the valve body, the adjusting column being threadedly connected to the sealing cover and allowing one end of the adjusting column to extend into the interior of the valve body, a slideway being provided in the middle of the adjusting column, the sliding rod being slidably arranged on the slideway and the upper and lower ends of the sliding rod both extending out of the slideway, the sealing portion being fixed to the lower end of the sliding rod, and the lower end of the adjusting column being able to be squeezed on the sealing portion. The utility model has the advantage of being able to be quickly cut off.

[0004] During the use of an existing stop valve, after the stop valve has been used for a period of time, it cannot effectively prevent the problem of water leakage caused by aging of internal parts, and the sealing effect is poor, resulting in unnecessary waste of resources and increased economic losses.

[0005] Therefore, a stop valve is proposed to solve the above problems. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a stop valve, which has the advantage of effectively preventing water leakage caused by aging of internal parts.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stop valve, comprising a valve cover, the bottom end of the valve cover is fixedly connected to a valve body, the interior of the valve body is fixedly connected to a sealing seat, the interior of the sealing seat is fitted with a valve core, the top of the valve core is fixedly connected to a valve stem, the lower part of the valve core is rotatably connected to a connecting ring, the interior of the connecting ring is slidably connected to a connecting rod, one side of the connecting rod is fixedly connected to a baffle, and the outer side of the valve body is fixedly connected to a water outlet pipe.

[0008] Preferably, a filter tube is fixedly connected to the bottom end of the valve body, a sealing cover is spirally connected to the outside of one end of the filter tube, a push rod is inserted into the inside of the sealing cover, one end of the push rod is fixedly connected to a top sheet, and a filter cartridge is fitted on the outside of the top sheet.

[0009] Preferably, a hand wheel is fixedly connected to the upper portion of the valve stem, and an anti-slip sleeve is provided on the outer side of the hand wheel.

[0010] Preferably, a first sealing gasket is embedded in the interior of the sealing seat, and the inner diameter of the first sealing gasket is smaller than the diameter of the bottom end of the valve core.

[0011] Preferably, a slider is fixedly connected to one side of the connecting rod, a tension spring is fitted on one side of the slider, and one side of the tension spring is fixedly connected to the inner wall of the connecting ring.

[0012] Preferably, a second sealing gasket is embedded inside the sealing cover, and one side of the second sealing gasket is in contact with one side of the filter cartridge.

[0013] Preferably, a water inlet pipe is fixedly connected to the outer side of the valve body, and a round pancake valve is rotatably connected to the inside of the water inlet pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model sets a baffle plate. When the staff needs to cut off the water flow, they rotate the valve stem to make the valve stem drive the valve core fixedly connected at the bottom end to move downward, and make the lower part of the valve core embedded in the inside of the sealing seat to cut off the water flow. During the downward movement of the valve core, it will drive the connecting ring of the lower rotating connection to move downward, and the connecting ring drives the connecting rod of the internal sliding connection to move downward, and the connecting rod drives the baffle plate to slide downward and seal the water outlet pipe, which can block the water seeping out of the valve core. After the stop valve has been used for a period of time, the problem of water leakage caused by aging of internal parts is effectively solved, the sealing effect of the valve is increased, the waste of water resources is reduced, and the practicality is improved.

[0016] 2. The utility model arranges a filter cartridge. In many areas, some domestic water usually has a lot of impurities inside. Especially when the valve is just opened, some mud and sand will flow out, which has a certain impact on people's water use. Therefore, a filter tube is fixedly connected to the bottom end of the valve body. The filter cartridge is arranged inside the filter tube, which can filter the mud and sand in the water source and increase the cleanliness of the water source. A sealing cover is spirally connected to the outside of one end of the filter tube, and a push rod is inserted and connected to the inside of the sealing cover. A top plate is fixedly connected to one end of the push rod. After the filter cartridge has been used for a period of time, the sealing cover is opened, and the push rod is pushed to drive the top plate to clean the mud and sand inside the filter cartridge, thereby improving the cleaning intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cutaway structure of the valve body of the utility model;

[0019] Figure 3 This is a schematic diagram of the cutaway structure of the connecting ring of the utility model;

[0020] Figure 4 This is a schematic diagram of the cutaway structure of the sealing seat of the utility model;

[0021] Figure 5 It is a schematic diagram of the cutaway structure of the sealing cover of the utility model.

[0022] In the figure: 1. valve cover; 2. valve body; 3. sealing seat; 4. valve core; 5. valve stem; 6. connecting ring; 7. connecting rod; 8. baffle; 9. water outlet pipe; 10. filter tube; 11. sealing cover; 12. push rod; 13. top plate; 14. filter cartridge; 15. hand wheel; 16. first sealing gasket; 17. slider; 18. tension spring; 19. second sealing gasket; 20. water inlet pipe; 21. pancake valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5 As shown, the utility model provides a stop valve, including a valve cover 1, the bottom end of the valve cover 1 is fixedly connected to a valve body 2, the valve cover 1 and the valve body 2 are connected by hexagonal bolts, the interior of the valve body 2 is fixedly connected to a sealing seat 3, the interior of the sealing seat 3 is fitted with a valve core 4, the top of the valve core 4 is fixedly connected to a valve stem 5, the lower part of the valve core 4 is rotatably connected to a connecting ring 6, the interior of the connecting ring 6 is slidably connected to a connecting rod 7, one side of the connecting rod 7 is fixedly connected to a baffle 8, and the outer side of the valve body 2 is fixedly connected to a water outlet pipe 9.

[0025] Specifically, a filter tube 10 is fixedly connected to the bottom end of the valve body 2, a sealing cover 11 is spirally connected to the outside of one end of the filter tube 10, a push rod 12 is inserted into the inside of the sealing cover 11, a top sheet 13 is fixedly connected to one end of the push rod 12, and the cross-sectional area of ​​the top sheet 13 is the same as the cross-sectional area of ​​the inner wall of the filter cartridge 14, and the filter cartridge 14 is fitted onto the outside of the top sheet 13.

[0026] Furthermore, a hand wheel 15 is fixedly connected to the upper part of the valve stem 5 , and an anti-skid sleeve is provided on the outer side of the hand wheel 15 , which can effectively prevent the staff from slipping due to water on their hands when turning the hand wheel 15 , making it easier to apply force to the hand wheel 15 .

[0027] Furthermore, a first sealing gasket 16 is embedded inside the sealing seat 3, and the inner diameter of the first sealing gasket 16 is smaller than the bottom diameter of the valve core 4. The first sealing gasket 16 can increase the airtightness between the valve core 4 and the sealing seat 3 and reduce the probability of water leakage.

[0028] It is worth mentioning that a slider 17 is fixedly connected to one side of the connecting rod 7, a tension spring 18 is fitted on one side of the slider 17, and one side of the tension spring 18 is fixedly connected to the inner wall of the connecting ring 6. After the leakage problem is solved, the slider 17 will be pulled by the action of the tension spring 18, and the slider 17 drives the baffle 8 back to its original position, thereby increasing practical performance.

[0029] It is worth noting that a second sealing gasket 19 is embedded inside the sealing cover 11, and one side of the second sealing gasket 19 is in contact with one side of the filter cartridge 14. Under the action of the second sealing gasket 19, the water flow exerts pressure on the top sheet 13, and the top sheet 13 squeezes the second sealing gasket 19 to increase air tightness, prevent water from overflowing, and reduce water waste.

[0030] It is worth mentioning that the outer side of the valve body 2 is fixedly connected to the water inlet pipe 20, and the inner side of the water inlet pipe 20 is rotatably connected to the round valve 21, which can block the water inlet pipe 20, so that when the filter cartridge 14 is cleaned, water resources can still flow out, reducing losses.

[0031] Working principle and process:

[0032] When the staff needs to cut off the water flow, they turn the hand wheel 15 to drive the valve stem 5 to rotate inside the valve cover 1. Because the outer side of the hand wheel 15 is covered with a non-slip sleeve, it can effectively prevent the staff from slipping due to water on their hands when turning the hand wheel 15, making it easier to apply force to the hand wheel 15. The valve stem 5 drives the valve core 4 fixed at the bottom to move downward, and the lower part of the valve core 4 is embedded in the sealing seat 3 to cut off the water flow. Under the action of the first sealing gasket 16, the airtightness between the valve core 4 and the sealing seat 3 can be increased, reducing the probability of water leakage. During the downward movement of the stop valve, the connecting ring 6 of the lower rotating connection will be driven to move downward, and the connecting ring 6 will drive the connecting rod 7 of the internal sliding connection to move downward, and the connecting rod 7 will drive the baffle 8 to slide downward, and the baffle 8 will seal the outlet pipe 9 to block the water seeping from the valve core 4. When the stop valve has been used for a period of time and water resources leak due to aging of the internal parts, the seeping water will exert a thrust on the baffle 8 to make it fit closely with the outlet pipe 9, increase the airtightness, prevent water from seeping out, and reduce the waste of water resources. After solving the leakage problem, under the action of the tension spring 18, Pull the slider 17, the slider 17 drives the baffle 8 back to its original position, increasing practical performance, solving the problem of water leakage caused by aging of internal parts, increasing the sealing effect of the valve, reducing water waste, and improving practicality. In some areas, domestic water usually has a lot of impurities and some sediment inside, which has a certain impact on people's water use. Therefore, a filter tube 10 is fixedly connected to the bottom end of the valve body 2. The filter tube 10 is provided with a filter cartridge 14, which can filter the sediment in the water source and increase the cleanliness of the water source. One end of the filter tube 10 is spirally connected to the outside There is a sealing cover 11, and a push rod 12 is inserted and connected inside the sealing cover 11. One end of the push rod 12 is fixedly connected to a top sheet 13. Under the action of the second sealing gasket 19, the water flow exerts pressure on the top sheet 13, and the top sheet 13 squeezes the second sealing gasket 19 to increase air tightness, prevent water from overflowing, and reduce water resource waste. After the filter cartridge 14 has been used for a period of time, the round cake valve 21 is rotated to block the water inlet pipe 20, and then the sealing cover 11 is opened, and the push rod 12 is pushed to drive the top sheet 13 to clean the mud and sand inside the filter cartridge 14, thereby improving the cleaning intensity of the staff.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stop valve, comprising a valve cover (1), characterized in that: The bottom end of the valve cover (1) is fixedly connected to a valve body (2), the interior of the valve body (2) is fixedly connected to a sealing seat (3), the interior of the sealing seat (3) is fitted with a valve core (4), the top of the valve core (4) is fixedly connected to a valve stem (5), the lower part of the valve core (4) is rotatably connected to a connecting ring (6), the interior of the connecting ring (6) is slidably connected to a connecting rod (7), one side of the connecting rod (7) is fixedly connected to a baffle (8), and the outer side of the valve body (2) is fixedly connected to a water outlet pipe (9).

2. A stop valve according to claim 1, characterized in that: A filter tube (10) is fixedly connected to the bottom end of the valve body (2); a sealing cover (11) is spirally connected to the outside of one end of the filter tube (10); a push rod (12) is inserted into the inside of the sealing cover (11); a top sheet (13) is fixedly connected to one end of the push rod (12); and a filter cartridge (14) is fitted on the outside of the top sheet (13).

3. A stop valve according to claim 1, characterized in that: A hand wheel (15) is fixedly connected to the upper portion of the valve stem (5), and an anti-slip sleeve is provided on the outer side of the hand wheel (15).

4. A stop valve according to claim 1, characterized in that: A first sealing gasket (16) is embedded inside the sealing seat (3), and the inner diameter of the first sealing gasket (16) is smaller than the diameter of the bottom end of the valve core (4).

5. A stop valve according to claim 1, characterized in that: A slider (17) is fixedly connected to one side of the connecting rod (7), a tension spring (18) is fitted on one side of the slider (17), and one side of the tension spring (18) is fixedly connected to the inner wall of the connecting ring (6).

6. A stop valve according to claim 2, characterized in that: A second sealing gasket (19) is embedded inside the sealing cover (11), and one side of the second sealing gasket (19) is in contact with one side of the filter cartridge (14).

7. A stop valve according to claim 1, characterized in that: The outside of the valve body (2) is fixedly connected to a water inlet pipe (20), and the inside of the water inlet pipe (20) is rotatably connected to a round valve (21).

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