Valve capable of controlling water loss of pipeline

Abstract

The valve capable of controlling the water loss of the pipeline comprises an upper valve cover, a water conveying pipe connected to the lower portion of the upper valve cover and a lower valve cover fixedly connected to the lower portion of the water conveying pipe, the top of an inner cavity of the upper valve cover is rotationally connected with an adjusting shaft, a key is connected to the top of the adjusting shaft in an inserted mode, and a fixing bolt is arranged on the outer side of the upper valve cover. The bottom end of the fixing bolt is in threaded connection with the top of the water conveying pipe, and an ejector rod is movably connected into the lower valve deck in a sleeved mode. According to the utility model, the spring is arranged on the outer side of the valve plug core body, and meanwhile, the pressure guide hole is formed in the valve plug outer sleeve for synchronizing the water inlet pressure, so that when the sum of the water outlet pressure of the water conveying pipe and the force of the spring is smaller than the water inlet pressure, the spring can push the valve plug core body to close the valve, continuous water loss is avoided, and the practicability of the device is effectively ensured; and in addition, after water loss repair, the pressure on the two sides is balanced, the valve plug core body can automatically reset, manual intervention is not needed, and the reliability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve that can control water loss in pipelines. Background Technology

[0002] In centralized heating systems, under conditions of insufficient heat source, rising energy prices, and various problems with heating equipment, when users release water or pipes rupture and lose water, the resulting increase in water loss can cause huge economic losses to heating companies. Therefore, a valve that can control water loss in pipelines is proposed. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows:

[0005] A valve for controlling water loss in a pipeline includes an upper valve cover, a water supply pipe connected below the upper valve cover, and a lower valve cover fixedly connected below the water supply pipe. An adjusting shaft is rotatably connected to the top of the inner cavity of the upper valve cover. A key is inserted into the top of the adjusting shaft, and a fixing bolt is provided on the outer side of the upper valve cover. The bottom end of the fixing bolt is threadedly connected to the top of the water supply pipe. A push rod is movably sleeved inside the lower valve cover. A valve plug outer sleeve is sleeved in the middle of the inner cavity of the water supply pipe. A valve plug core is sleeved inside the valve plug outer sleeve. A spring is sleeved on the top of the valve plug core, and a clamping bolt for limiting the position of the spring is threadedly connected to the top of the valve plug core. Pressure guide holes are provided on both sides of the valve plug outer sleeve.

[0006] Preferably, the outer ring of the adjusting shaft is fitted with an O-ring, and the outer side of the O-ring abuts against the inner wall of the upper valve cover.

[0007] Preferably, an O-ring is also provided in the gap between the valve plug sleeve and the water pipe, and an O-ring is also provided between the top rod and the lower valve cover.

[0008] Preferably, a baffle is fixedly installed in the middle of the water supply pipe, and a water outlet is opened in the middle of the baffle. The valve plug core is located directly above the water outlet, and the size of the valve plug core is larger than the size of the water outlet.

[0009] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0010] In this invention, a spring is installed on the outside of the valve plug core, and a pressure guiding hole is opened on the valve plug sleeve to synchronize the inlet water pressure. When the sum of the outlet water pressure of the water supply pipe and the force of the spring is less than the inlet water pressure, the spring will push the valve plug core to close the valve, preventing continuous water loss. This effectively ensures the practicality of the device and improves the safety of use. Furthermore, after the water loss is repaired, the pressure on both sides is balanced, and the valve plug core will automatically reset without manual intervention, thus improving the reliability of the device. Attached Figure Description

[0011] Figure 1 This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0012] Figure label:

[0013] 110. Upper valve cover; 111. Adjusting shaft; 112. Fixing bolt; 113. Key; 120. Water supply pipe; 130. Lower valve cover; 131. Push rod; 140. Valve plug core; 141. Valve plug outer sleeve; 142. Spring; 143. Tightening bolt; 144. Pressure guide hole. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0015] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a valve capable of controlling water loss in a pipeline.

[0016] Example:

[0017] Combination Figure 1As shown, this utility model provides a valve for controlling water loss in a pipeline, including an upper valve cover 110, a water supply pipe 120 connected below the upper valve cover 110, and a lower valve cover 130 fixedly connected below the water supply pipe 120. An adjusting shaft 111 is rotatably connected to the top of the inner cavity of the upper valve cover 110, and a key 113 is inserted into the top of the adjusting shaft 111. A fixing bolt 112 is provided on the outer side of the upper valve cover 110, and the bottom end of the fixing bolt 112 is threadedly connected to the top of the water supply pipe 120. A push rod 131 is movably sleeved inside the lower valve cover 130. A valve plug outer sleeve 141 is sleeved in the middle of the inner cavity of the water supply pipe 120, and a valve plug core 140 is sleeved inside the valve plug outer sleeve 141. A spring 142 is fitted onto the top of the valve plug core 140, and a clamping bolt 143 for limiting the position of the spring 142 is threaded onto the top of the valve plug core 140. Pressure guide holes 144 are provided on both sides of the valve plug outer sleeve 141. An O-ring is fitted onto the outer ring of the adjusting shaft 111. The outer side of the O-ring abuts against the inner wall of the upper valve cover 110. An O-ring is also provided in the gap between the valve plug outer sleeve 141 and the water supply pipe 120. An O-ring is also provided between the top rod 131 and the lower valve cover 130. A baffle is fixedly installed in the middle of the water supply pipe 120. A water outlet is provided in the middle of the baffle. The valve plug core 140 is located directly above the water outlet, and the size of the valve plug core 140 is larger than the size of the water outlet.

[0018] Specifically, by setting a slot on the adjusting shaft 111 that engages with the key 113, the current maximum flow rate can be adjusted by rotating the adjusting shaft 111 with the key 113. When the user releases water, the flow rate through the valve plug core 140 and the pressure difference across it will increase. When the flow rate exceeds the maximum flow rate set by the valve plug core 140, the valve plug core 140 will automatically close. To reopen it, a special key 113 is required, which effectively prevents accidental activation and improves the safety of the device.

[0019] The working principle and usage process of this utility model are as follows: First, assemble the device in sequence, then connect the front end of the water supply pipe 120 to the water supply pipe, and connect the rear end of the water supply pipe 120 to the water supply pipe to monitor the pipeline. When the inlet water pressure is equal to the sum of the outlet water pressure and the force of the spring 142, the valve is continuously opened to supply water. When the inlet water pressure is greater than the sum of the outlet water pressure and the force of the spring 142, the valve plug core 140 closes the valve downward under the action of the spring 142.

[0020] Finally, the device can be inspected and maintained periodically.

[0021] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A valve capable of controlling the loss of fluid in a pipe, characterized in that, Includes an upper valve cover (110), a water supply pipe (120) connected below the upper valve cover (110), and a lower valve cover (130) fixedly connected below the water supply pipe (120); An adjusting shaft (111) is rotatably connected to the top of the inner cavity of the upper valve cover (110). A key (113) is inserted into the top of the adjusting shaft (111), and a fixing bolt (112) is provided on the outer side of the upper valve cover (110). The bottom end of the fixing bolt (112) is threadedly connected to the top of the water supply pipe (120). The lower valve cover (130) is internally fitted with a push rod (131); A valve plug sleeve (141) is fitted in the middle of the inner cavity of the water pipe (120). A valve plug core (140) is fitted inside the valve plug sleeve (141). A spring (142) is fitted on the top of the valve plug core (140). A clamping bolt (143) for limiting the position of the spring (142) is threaded to the top of the valve plug core (140). Pressure guide holes (144) are opened on both sides of the valve plug sleeve (141).

2. The valve capable of controlling the loss of fluid in a pipe according to claim 1, wherein, The outer ring of the adjusting shaft (111) is fitted with an O-ring, and the outer side of the O-ring abuts against the inner wall of the upper valve cover (110).

3. The valve capable of controlling the loss of fluid in a pipe according to claim 1, wherein, An O-ring is also provided in the gap between the valve plug sleeve (141) and the water pipe (120), and an O-ring is also provided between the top rod (131) and the lower valve cover (130).

4. The valve capable of controlling the loss of fluid in a pipe according to claim 1, wherein, A baffle is fixedly installed in the middle of the water supply pipe (120), and a water outlet hole is opened in the middle of the baffle. The valve plug core (140) is located directly above the water outlet hole, and the size of the valve plug core (140) is larger than the size of the water outlet hole.

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