Anti-freezing valve

Abstract

The anti-freezing valve comprises a valve body, a water flowing groove is formed in the upper end of the interior of the valve body, a water storage groove is formed in the lower end of the interior of the valve body, a threaded sleeve is fixedly connected to the middle of the top face of the valve body, a switch assembly is arranged on the inner side of the threaded sleeve, and an installation pipe is fixedly connected to the left end of the top face of the valve body. A cleaning assembly is arranged in the mounting pipe, the cleaning assembly is connected with a sealing ring, a sealing ring is placed on the inner side of the mounting pipe, and a filter screen is fixedly connected to the inner side wall of the sealing ring. When the filter screen is used, impurities on the filter screen can be scraped, blockage caused by accumulation of excessive impurities on the filter screen is avoided, the valve is closed by the sealing assembly, water in the water outlet pipe flows into the water storage tank through the water flowing groove and the communicating groove at the moment, the filter screen is washed, and the threaded cover is opened. And water with impurities in the valve body can be discharged, so that freezing caused by water storage in the water outlet pipe is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an antifreeze valve. Background Art

[0002] Valves are control components in fluid delivery systems. Valves have functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow pressure relief. From the simplest shutoff valve to the various valves used in extremely complex automatic control systems, valves have a wide variety of varieties and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. In real life, valves will freeze in winter and cannot effectively play the role of diversion and shutoff.

[0003] The commonly used methods of existing antifreeze measures are to wrap all the water pipes or to run the water all the time so that the water is always in a flowing state. The antifreeze effect of wrapping the water pipes is poor, and running the water all the time leads to a waste of resources. Utility Model Content

[0004] The purpose of the utility model is to provide an antifreeze valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an antifreeze valve, comprising a valve body, a water flow trough is provided at the upper end of the valve body, a water storage tank is provided at the lower end of the valve body, a threaded sleeve is fixedly connected to the middle of the top surface of the valve body, a switch assembly is provided on the inner side of the threaded sleeve, a mounting tube is fixedly connected to the left end of the top surface of the valve body, a cleaning assembly is provided inside the mounting tube, a sealing ring is connected to the cleaning assembly, a sealing ring is placed on the inner side of the mounting tube, and a filter is fixedly connected to the inner side wall of the sealing ring.

[0006] Preferably, the switch assembly includes a valve stem, which is threadedly connected to the threaded sleeve, the lower end of the valve stem extends into the water flow trough and the bottom end is fixedly connected to a valve flap, the valve flap is truncated cone-shaped, the arc-shaped side of the valve flap is fixedly connected to an annular elastic seal, the bottom surface of the valve flap is fixedly connected to an elastic sealing pad, and a connecting groove is opened inside the valve flap.

[0007] Preferably, the cleaning assembly includes a mounting frame, the mounting frame is fixedly connected to the inner wall of the mounting tube, the inner surface of the mounting frame is rotatably connected to a fan blade, the top surface of the fan blade is threadedly connected to a connecting rod, the top of the connecting rod is fixedly connected to a scraper, the scraper is in contact with the filter screen, and the sealing ring is placed between the mounting frame and the sealing ring.

[0008] Preferably, a connecting flange is fixedly connected to the outer side surface of the sealing ring, a fixing bolt is threadedly connected to the connecting flange, and a bottom end of the fixing bolt is threadedly connected to the valve body.

[0009] Preferably, a threaded cover is threadedly connected to the middle portion of the bottom surface of the valve body, and the water flow trough and the water storage tank are interconnected.

[0010] Preferably, a hand wheel is fixedly connected to the top end of the valve stem.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model filters the water inside the valve body through the filter screen. The water flows in the water flow trough, thereby driving the fan blades to rotate, so that the connecting rod drives the scraper to rotate, thereby scraping off the impurities on the filter screen to avoid clogging caused by excessive accumulation of impurities on the filter screen.

[0013] 2. The utility model rotates the valve stem by a hand wheel, and the valve stem drives the valve disc to move downward until the valve disc drives the annular elastic seal and the elastic sealing gasket to contact the water flow groove, and the raft plate squeezes the annular elastic seal and the elastic sealing gasket, thereby closing the valve. At this time, the water in the outlet pipe flows into the water storage tank through the water flow groove and the connecting groove, and the filter screen is rinsed at the same time. The threaded cover is opened to discharge the water with impurities in the valve body, thereby avoiding freezing due to water accumulation in the outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the valve body of the utility model;

[0016] Figure 3 This is a schematic diagram of the cleaning component structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the sealing component structure of the utility model.

[0018] In the figure: 1. valve body; 2. water flow groove; 3. water storage tank; 4. threaded sleeve; 5. switch assembly; 51. valve stem; 52. valve disc; 53. annular elastic seal; 54. elastic sealing gasket; 55. connecting groove; 6. mounting pipe; 7. cleaning assembly; 71. mounting frame; 72. fan blade; 73. connecting rod; 74. scraper; 8. sealing ring; 9. sealing ring; 10. filter screen; 11. connecting flange; 12. fixing bolt; 13. threaded cover; 14. handwheel. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 The utility model provides a technical solution: an antifreeze valve, including a valve body 1, a water flow groove 2 is opened at the upper end of the valve body 1, a water storage tank 3 is opened at the lower end of the valve body 1, a threaded sleeve 4 is installed in the middle of the top surface of the valve body 1 by bolts, a switch assembly 5 is installed on the inner side of the threaded sleeve 4, a mounting pipe 6 is welded to the left end of the top surface of the valve body 1, a cleaning assembly 7 is installed in the mounting pipe 6, a sealing ring 9 is placed on the inner side of the mounting pipe 6, and the inner wall of the sealing ring 9 is installed on the filter screen 10 by bolts.

[0021] The switch assembly 5 includes a valve stem 51, which is threadedly connected to the threaded sleeve 4. The lower end of the valve stem 51 extends into the water flow groove 2. The valve flap 52 is welded to the bottom end of the valve stem 51. The valve flap 52 is truncated cone-shaped. The annular elastic seal 53 is bonded to the arc-shaped side surface of the valve flap 52. The elastic sealing gasket 54 is bonded to the bottom surface of the valve flap 52. The connecting groove 55 is opened inside the valve flap 52.

[0022] The cleaning assembly 7 includes a mounting frame 71, which is mounted on the inner wall of the mounting tube 6 by bolts, the fan blades 72 are mounted on the inner surface of the mounting frame 71 by pins, the connecting rod 73 is threadedly connected to the top surface of the fan blades 72, the scraper 74 is welded to the top of the connecting rod 73, the scraper 74 is in contact with the filter screen 10, and the sealing ring 8 is placed between the mounting frame 71 and the sealing ring 9.

[0023] The connecting flange 11 is welded to the outer side of the sealing ring 9 , the upper end of the fixing bolt 12 is threadedly connected to the connecting flange 11 , and the bottom end of the fixing bolt 12 is threadedly connected to the valve body 1 .

[0024] The threaded cover 13 is threadedly connected to the middle of the bottom surface of the valve body 1, and the water flow tank 2 and the water storage tank 3 are connected to each other.

[0025] The hand wheel 14 is mounted on the top of the valve stem 51 by means of bolts.

[0026] Working principle: When the utility model is in use, the water inlet and outlet of the valve body 1 are connected to the water inlet pipe and the water outlet pipe respectively, the filter screen 10 filters the water inside the valve body 1, and the water flows in the water flow groove 2, thereby driving the fan blade 72 to rotate, so that the connecting rod 73 drives the scraper 74 to rotate, thereby scraping the impurities on the filter screen 10 to avoid excessive accumulation of impurities on the filter screen 10 and causing blockage. When the temperature is low, the valve stem 51 is rotated by the hand wheel 14, and the valve stem 51 drives the valve disc 52 to move downward until the valve disc 52 drives the annular elastic seal 53 and the elastic sealing gasket 54 to contact the water flow groove 2, and the raft 52 squeezes the annular elastic seal 53 and the elastic sealing gasket 54, thereby closing the valve. At this time, the water in the outlet pipe flows into the water storage tank 3 through the water flow groove 2 and the connecting groove 55, and the filter screen is rinsed at the same time. The threaded cover 13 is opened to discharge the water with impurities in the valve body 1, thereby avoiding freezing due to water storage in the outlet pipe. The utility model has the advantages of easy use and good use effect.

[0027] 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.

[0028] 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. An antifreeze valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a water flow trough (2) at the upper end thereof, and a water storage tank (3) at the lower end thereof. A threaded sleeve (4) is fixedly connected to the middle of the top surface of the valve body (1), and a switch assembly (5) is arranged inside the threaded sleeve (4). A mounting tube (6) is fixedly connected to the left end of the top surface of the valve body (1), and a cleaning assembly (7) is arranged inside the mounting tube (6). The cleaning assembly (7) is connected to a sealing ring (8). A sealing ring (9) is placed inside the mounting tube (6), and a filter screen (10) is fixedly connected to the inner wall of the sealing ring (9).

2. The antifreeze valve according to claim 1, characterized in that: The switch assembly (5) comprises a valve stem (51), wherein the valve stem (51) is threadedly connected to the threaded sleeve (4), the lower end of the valve stem (51) extends into the water flow channel (2) and the bottom end is fixedly connected to a valve flap (52), the valve flap (52) is truncated cone-shaped, the arc-shaped side surface of the valve flap (52) is fixedly connected to an annular elastic sealing member (53), the bottom surface of the valve flap (52) is fixedly connected to an elastic sealing pad (54), and a connecting groove (55) is provided inside the valve flap (52).

3. The antifreeze valve according to claim 1, characterized in that: The cleaning assembly (7) comprises a mounting frame (71), the mounting frame (71) being fixedly connected to the inner wall of the mounting tube (6), the inner surface of the mounting frame (71) being rotatably connected to a fan blade (72), the top surface of the fan blade (72) being threadedly connected to a connecting rod (73), the top end of the connecting rod (73) being fixedly connected to a scraper (74), the scraper (74) being in contact with the filter screen (10), and the sealing ring (8) being placed between the mounting frame (71) and the sealing ring (9).

4. The antifreeze valve according to claim 1, characterized in that: The outer side surface of the sealing ring (9) is fixedly connected to a connecting flange (11), the connecting flange (11) is threadedly connected to a fixing bolt (12), and the bottom end of the fixing bolt (12) is threadedly connected to the valve body (1).

5. The antifreeze valve according to claim 1, characterized in that: A threaded cover (13) is threadedly connected to the middle portion of the bottom surface of the valve body (1), and the water flow trough (2) and the water storage tank (3) are interconnected.

6. The antifreeze valve according to claim 2, characterized in that: The top end of the valve stem (51) is fixedly connected to a hand wheel (14).

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