Full-automatic anti-drainage valve

Abstract

The utility model discloses a full-automatic anti-drainage valve, and relates to the field of valves. A full-automatic anti-drainage valve comprises a valve shell, the two ends of the valve shell are fixedly communicated with a water inlet pipe and a water outlet pipe respectively, the full-automatic anti-drainage valve further comprises a sealing plug inserted into the water inlet pipe, a sealing sleeve is fixedly installed on the outer wall of the sealing plug, and the sealing sleeve is tightly attached to the inner wall of the water inlet pipe; the sealing cover is fixedly connected with the sealing plug; the wrapping air bag is arranged on the sealing cover in a surrounding mode, and a sealing groove corresponding to the wrapping air bag is formed in the inner wall of the valve shell; when the valve is closed, the sealing plug extrudes the sealing sleeve to be tightly attached to the inner wall of the water inlet pipe, the sealing performance of the valve is improved, the expanded wrapping air bag is tightly attached to the sealing groove in the inner wall of the valve shell, liquid leakage is effectively prevented, and the sealing performance of the valve is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a full-automatic anti-leakage valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. Valves are control components in fluid conveying systems and have functions such as shutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief.

[0003] After a period of use, the sealing components inside the valves used to increase the sealing of the valves may age, which reduces the sealing of the valves and causes leakage and waste of liquid. In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a fully automatic anti-leakage valve which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A fully automatic anti-leakage valve comprises a valve housing, wherein both ends of the valve housing are respectively fixedly connected with a water inlet pipe and a water outlet pipe, and further comprises: a sealing plug inserted into the water inlet pipe, a sealing sleeve fixedly installed on the outer wall of the sealing plug, and the sealing sleeve is tightly fitted with the inner wall of the water inlet pipe; a sealing cover fixedly connected to the sealing plug; a wrapping airbag arranged around the sealing cover, wherein a sealing groove corresponding to the wrapping airbag is opened on the inner wall of the valve housing, an air storage box is fixedly connected to the valve housing, the air storage box is fixedly connected with the wrapping airbag through a pipe one, and a solenoid valve one is arranged on the pipe one; a driving assembly is arranged on the valve housing and is used to drive the sealing cover to move in the valve housing.

[0007] In order to facilitate the discharge of the gas in the wrapped airbag, preferably, it also includes a second pipeline, on which a second solenoid valve is provided, and the second pipeline is fixedly connected to the wrapped airbag.

[0008] In order to drive the sealing cover to move, preferably, the driving assembly includes a screw and a motor, the screw is rotatably connected in the valve housing, the motor is fixedly mounted on the valve housing, the screw is fixedly connected to the output end of the motor, a support plate is fixedly connected to the sealing cover, the support plate is threadedly connected to the screw, a guide rod is fixedly connected to the support plate, the guide rod passes through the valve housing, and is used to limit and guide the support plate.

[0009] In order to replenish gas into the air storage tank and thus maintain sufficient air pressure inside the air storage tank, it further includes a sleeve fixedly connected to the valve housing, a piston disk is slidably connected inside the sleeve, the guide rod passes through one end of the valve housing and is fixedly connected to the piston disk, a conduit 1 is fixedly connected to the sleeve, and the sleeve is fixedly connected to the air storage tank through a conduit 2.

[0010] In order to provide protection for the screw, further, elastic bellows are sleeved on both sides of the screw located on the support plate, one end of the elastic bellows is fixedly connected to the support plate, and the other end is fixedly connected to the inner wall of the valve housing.

[0011] In order to facilitate the removal or installation of the filter screen, preferably, the filter screen is detachably connected to the water inlet pipe via fixing bolts.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0013] The utility model improves the sealing performance of the valve by squeezing the sealing sleeve and fitting tightly against the inner wall of the water inlet pipe through the sealing plug when the valve is closed, and also effectively prevents liquid leakage by fitting tightly against the sealing groove on the inner wall of the valve housing through the expanded wrapping airbag, thereby further improving the sealing performance of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the attached picture:

[0015] Figure 1 It is a cross-sectional view of the valve housing, the water inlet pipe and the water outlet pipe of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3 The utility model Figure 1 Enlarged view of part A.

[0018] In the figure: 1. valve housing; 101. water inlet pipe; 102. water outlet pipe; 2. sealing plug; 201. sealing sleeve; 202. sealing cover; 203. support plate; 204. guide rod; 205. wrapped air bag; 206. pipeline one; 207. air storage box; 208. solenoid valve one; 3. pipeline two; 301. solenoid valve two; 4. screw; 401. motor; 402. elastic bellows; 5. sleeve; 501. piston disc; 502. conduit one; 503. conduit two; 6. filter screen; 601. fixing bolt. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0020] Embodiment 1:

[0021] Reference Figure 1 , Figure 2 A fully automatic anti-leakage valve comprises a valve housing 1, wherein the two ends of the valve housing 1 are respectively fixedly connected with a water inlet pipe 101 and a water outlet pipe 102, and further comprises: a sealing plug 2 inserted into the water inlet pipe 101, a sealing sleeve 201 is fixedly installed on the outer wall of the sealing plug 2, and the sealing sleeve 201 is tightly fitted with the inner wall of the water inlet pipe 101; a sealing cover 202 is fixedly connected with the sealing plug 2; a wrapping air bag 205 is arranged around the sealing cover 202, wherein a sealing groove corresponding to the wrapping air bag 205 is opened on the inner wall of the valve housing 1, an air storage box 207 is fixedly connected to the valve housing 1, and the air storage box 207 is fixedly connected with the wrapping air bag 205 through a pipe 206, and a solenoid valve 208 is arranged on the pipe 206; a driving component is arranged on the valve housing 1, and is used to drive the sealing cover 202 to move in the valve housing 1.

[0022] The driving assembly includes a screw 4 and a motor 401. The screw 4 is rotatably connected in the valve housing 1. The motor 401 is fixedly installed on the valve housing 1. The screw 4 is fixedly connected to the output end of the motor 401. A support plate 203 is fixedly connected to the sealing cover 202. The support plate 203 is threadedly connected to the screw 4. A guide rod 204 is fixedly connected to the support plate 203. The guide rod 204 penetrates the valve housing 1 and is used to limit and guide the support plate 203.

[0023] When the valve needs to be closed, the motor 401 is started, the motor 401 drives the screw 4 to rotate, the screw 4 drives the support plate 203 to drive the sealing cover 202 to move toward the side close to the water inlet pipe 101, and the sealing cover 202 drives the sealing plug 2 to move synchronously. When the support plate 203 contacts the inner wall of the side of the water inlet pipe 101 that is connected to the valve housing 1, the sealing plug 2 is inserted into the water inlet pipe 101, so as to automatically close the valve. At the same time, the sealing plug 2 squeezes the sealing sleeve 201 and fits closely with the inner wall of the water inlet pipe 101, thereby improving the sealing performance of the valve.

[0024] Then open the solenoid valve 208 on the pipe 206. At this time, the high-pressure gas stored in the air storage box 207 is transported into the wrapped airbag 205 through the pipe 206. A one-way valve is provided on the pipe 206, and then the wrapped airbag 205 is inflated, so that the inflated wrapped airbag 205 fits tightly with the sealing groove on the inner wall of the valve housing 1, effectively preventing liquid leakage and further improving the sealing of the valve.

[0025] It should be noted that the pipe 1 206 is a hose, so the pipe 1 206 will not interfere with the movement of the support plate 203 .

[0026] Embodiment 2:

[0027] Reference Figure 1 , Figure 2 , a fully automatic anti-leakage valve, is basically the same as Example 1, and further includes a pipeline 23, on which a solenoid valve 201 is provided, and the pipeline 23 is fixedly connected to the wrapped airbag 205.

[0028] When the valve needs to be opened, first open the solenoid valve 2301 on the pipe 23 to allow the gas wrapped inside the airbag 205 to be discharged through the pipe 23. After the gas wrapped inside the airbag 205 is completely discharged, start the motor 401. The motor 401 drives the screw 4 to rotate. The screw 4 drives the support plate 203 to drive the sealing cover 202 to move to the side close to the water outlet pipe 102. At the same time, the sealing cover 202 drives the sealing plug 2 to move synchronously until the support plate 203 contacts the inner wall of the side where the water outlet pipe 102 is connected to the valve housing 1, thereby automatically opening the valve. It should be noted that the width of the support plate 203 is smaller than the diameter of the water outlet pipe 102. Therefore, the support plate 203 will not affect the discharge of liquid through the water inlet pipe 101, the valve housing 1, and the water outlet pipe 102 in sequence.

[0029] Embodiment 3:

[0030] Reference Figure 1 , a fully automatic anti-leakage valve, which is basically the same as Example 1, and further includes a sleeve 5 fixedly connected to the valve housing 1, a piston disc 501 is slidably connected in the sleeve 5, a guide rod 204 passes through one end of the valve housing 1 and is fixedly connected to the piston disc 501, a conduit 1 502 is fixedly connected to the sleeve 5, and the sleeve 5 is fixedly connected to the air storage box 207 through a conduit 2 503.

[0031] Based on the above-mentioned guide rod 204 following the support plate 203 to move back and forth left and right in the valve housing 1, when the guide rod 204 follows the support plate 203 to move toward the side close to the water inlet pipe 101, the piston disc 501 follows the guide rod 204 to move synchronously in the sleeve 5, and absorbs external gas into the sleeve 5 through the conduit 1 502, and then when the guide rod 204 follows the support plate 203 to move toward the side close to the water outlet pipe 102, the piston disc 501 squeezes the gas inside the sleeve 5 and transports it into the air storage box 207 through the conduit 2 503. Both the conduit 1 502 and the conduit 2 503 are provided with a one-way valve, so as to replenish gas into the air storage box 207, thereby maintaining sufficient air pressure inside the air storage box 207.

[0032] Embodiment 4:

[0033] Reference Figure 1 , Figure 3 , a fully automatic anti-leakage valve, which is basically the same as Example 1, and further, elastic bellows 402 are sleeved on both sides of the screw 4 located on the support plate 203, one end of the elastic bellows 402 is fixedly connected to the support plate 203, and the other end is fixedly connected to the inner wall of the valve housing 1; by sleeved on the elastic bellows 402 on the screw 4, the screw 4 is protected to prevent the screw 4 from being immersed in the liquid for a long time during the opening of the valve, causing the screw 4 to rust, affecting the movement of the sealing cover 202 driven by the screw 4 through the support plate 203.

[0034] Embodiment 5:

[0035] Reference Figure 1 , a fully automatic anti-leakage valve, is basically the same as Example 1, and further, a filter screen 6 is detachably connected to the water inlet pipe 101 through a fixing bolt 601; when the liquid enters the valve housing 1 through the water inlet pipe 101 and is then discharged through the water outlet pipe 102, the filter screen 6 can filter the liquid passing through the water inlet pipe 101 to prevent impurities carried in the liquid from clogging the valve housing 1 and affecting the use of the valve housing 1.

[0036] When the filter 6 needs to be cleaned, the staff can use tools to unscrew the fixing bolts 601 used to limit and fix the filter 6, and then take out the filter 6 inserted into the water inlet pipe 101 to clean the impurities adsorbed on the surface of the filter 6.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A fully automatic anti-leakage valve, comprising a valve housing (1), wherein two ends of the valve housing (1) are respectively fixedly connected with a water inlet pipe (101) and a water outlet pipe (102), characterized in that: Also includes: A sealing plug (2) inserted into the water inlet pipe (101), a sealing sleeve (201) being fixedly mounted on the outer wall of the sealing plug (2), and the sealing sleeve (201) being tightly fitted to the inner wall of the water inlet pipe (101); A sealing cover (202) fixedly connected to the sealing plug (2); A wrapping air bag (205) is arranged around the sealing cover (202), The inner wall of the valve housing (1) is provided with a sealing groove corresponding to the wrapped airbag (205); the valve housing (1) is fixedly connected with an air storage box (207); the air storage box (207) is fixedly connected with the wrapped airbag (205) via a pipe (206); and a solenoid valve (208) is provided on the pipe (206); A drive assembly is arranged on the valve housing (1) and is used to drive the sealing cover (202) to move inside the valve housing (1).

2. A fully automatic anti-leakage valve according to claim 1, characterized in that: It also includes a second pipeline (3), on which a second electromagnetic valve (301) is provided, and the second pipeline (3) is fixedly connected to the wrapped airbag (205).

3. The fully automatic anti-leakage valve according to claim 1, characterized in that: The drive assembly comprises a screw (4) and a motor (401); the screw (4) is rotatably connected in the valve housing (1); the motor (401) is fixedly mounted on the valve housing (1); the screw (4) is fixedly connected to the output end of the motor (401); a support plate (203) is fixedly connected to the sealing cover (202); the support plate (203) is threadedly connected to the screw (4); a guide rod (204) is fixedly connected to the support plate (203); the guide rod (204) penetrates the valve housing (1) and serves to limit and guide the support plate (203).

4. A fully automatic anti-leakage valve according to claim 3, characterized in that: It also comprises a sleeve (5) fixedly connected to the valve housing (1), a piston disc (501) being slidably connected inside the sleeve (5), one end of the guide rod (204) passing through the valve housing (1) and being fixedly connected to the piston disc (501), a conduit 1 (502) being fixedly connected to the sleeve (5), and the sleeve (5) being fixedly connected to the air storage box (207) via a conduit 2 (503).

5. The fully automatic anti-leakage valve according to claim 3, characterized in that: The screw rod (4) is located on both sides of the support plate (203) and is sleeved with an elastic bellows (402); one end of the elastic bellows (402) is fixedly connected to the support plate (203), and the other end is fixedly connected to the inner wall of the valve housing (1).

6. The fully automatic anti-leakage valve according to claim 1, characterized in that: The water inlet pipe (101) is detachably connected to a filter screen (6) via a fixing bolt (601).

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