Pipeline water drain valve assembly
By adopting a combination design of a driving mechanism and a drainage mechanism in the pipeline drain valve, it is possible to prevent the valve body and the valve disc from frozen together at sub-zero temperatures and prevent impurities from depositing, which solves the shortcomings of these problems in the prior art and improves the reliability and service life of the valve.
Patent Information
- Application Number
- CN202421638447.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The existing pipeline drain valves are prone to freezing of water at subzero temperatures, causing damage to the valve body and the valve flap together due to the freezing of water, and at the same time, impurities deposit at the bottom of the valve body and affect the normal movement and closing of the valve flap.
A pipe drain valve assembly is designed, using a combination of a driving mechanism and a drain mechanism to enable electric opening and discharge of water through the servo motor to drive the rotation of the gears and screws, and the fan blades are rotated through the water flow, agitating impurities at the bottom of the valve seat, and discharging residual liquid to prevent icing.
The risk of preventing the valve body and the valve flap from being frozen together at sub-zero temperatures is achieved, damage to the drain valve is avoided, and deposition is prevented by agitation of impurities, ensuring the normal movement and closing of the valve flap.
Smart Images
Figure CN222823811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a pipeline drain valve component. Background Art
[0002] Water supply and drainage valves are generally used in domestic water supply, fire protection systems and industrial water supply systems to control flow, water level, etc. The components of the pipeline drain valve mainly include the following parts: valve body, valve cover, valve disc, valve seat, valve stem, operating mechanism and auxiliary seals.
[0003] Through research and analysis, it was found that the pipeline drain valves on the market still have the following shortcomings to a certain extent.
[0004] For example, impurities are easily deposited at the bottom of the valve body, affecting the normal movement and closing of the valve disc. When working at sub-zero temperatures, the residual water in the valve body cavity will freeze, and the valve body and the valve disc will be frozen together, which may even cause damage to the drain valve over time. In order to solve the above technical problems, we have designed a pipeline drain valve assembly. Utility Model Content
[0005] The utility model aims to provide a pipeline drain valve assembly, which has the advantages of preventing impurities from being deposited at the bottom of the valve body and preventing freezing, and solves the problem that impurities are easily deposited at the bottom of the valve body, affecting the normal movement and closing of the valve disc, and when working at sub-zero temperatures, the residual water in the valve body cavity will freeze, and the valve body and the valve disc will freeze together, sometimes even causing damage to the drain valve over time.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline drain valve assembly, comprising a valve seat, the left side of the valve seat is connected to a water inlet pipe, the right side of the valve seat is connected to a water outlet pipe, a nut is fixedly inlaid and connected through the top of the valve seat, a screw rod is threadedly connected to the inner wall of the nut, the lower end of the screw rod is rotatably connected to a valve disc through a bearing, the upper end of the screw rod is fixedly connected to a hand wheel, a sealing gasket is arranged between the inner wall of the valve seat and the surface of the valve disc, the surface of the sealing gasket is fixedly connected to the inner wall of the valve seat, a driving mechanism is installed on the surface of the screw rod, and a drainage mechanism is installed at the bottom of the valve seat;
[0007] The driving mechanism includes a connecting plate, a rotating drum, a gear 1, a servo motor, a gear 2 and a limit strip, and the drainage mechanism includes a rotating pipe, a fan blade 1, a rotating rod, a fan blade 2, a belt pulley, a belt, a connecting pipe, an inclined pipe and a through hole.
[0008] Preferably, the bottom of the connecting plate is fixedly connected to the top of the valve seat, the lower end of the rotating cylinder is rotatably embedded in the top of the connecting plate through a bearing, the rotating cylinder is movably sleeved on the surface of the upper end of the screw rod, the gear 1 is fixedly sleeved on the surface of the upper end of the rotating cylinder, the bottom of the servo motor is fixedly connected to the rear side of the top of the valve seat, and the rotating shaft of the servo motor is fixedly connected to the bottom of gear 2.
[0009] Preferably, gear one is meshed with gear two, the right side of the limit strip is fixedly connected to the right side of the inner cavity of the rotating drum, a limit groove matching the limit strip is opened on the right side of the screw rod, and the left side of the limit strip extends to the inner cavity of the limit groove.
[0010] Preferably, the number of the rotating tubes is three, and they are rotatably embedded in the bottom of the valve seat through sealed bearings, the bottom of the fan blade one is fixedly connected to the upper end of the rotating tube, one end of the rotating rod is rotatably embedded in the bottom of the water outlet pipe through a sealed bearing, the bottom of the fan blade two is fixedly connected to the upper end of the rotating rod, the number of the belt pulleys is four, and they are fixedly sleeved on the surfaces of the three rotating tubes and the lower end of the rotating rod, and the belt drive is sleeved on the surface of the belt pulley.
[0011] Preferably, the three ends of the connecting pipe are rotatably connected to the lower ends of the three rotating pipes through sealing bearings respectively, and the number of the inclined pipes is two, and the two ends thereof are respectively connected to the connecting pipe and the water outlet pipe.
[0012] Preferably, both the front and rear sides of the top of the valve seat are fixedly connected with a cover body by bolts, and both sides of the bottom of the inner cavity of the valve seat are fixedly connected with a limiting block.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] The utility model controls the operation of the servo motor to rotate gear two, thereby driving the rotation of gear one, the rotating drum and the limit strip, so that the screw rod rotates and moves upward, and the valve flap moves upward, thereby having the advantage of being able to electrically open and release water, and controlling the number of revolutions of the servo motor shaft to control the size of the valve opening, and even if the power is off, the screw rod can be driven to rotate and move by turning the hand wheel to realize the opening and closing of the valve flap, which is flexible and convenient.
[0015] The utility model drives the fan blade 2 to rotate by the water flow during the process of the valve disc opening to release water, so that the rotating rod and the belt pulley at the lower end thereof rotate, and under the action of the belt transmission, the multiple rotating tubes and the belt pulleys thereon rotate, so that the multiple fan blades 1 rotate, and the impurities deposited on the bottom of the valve seat are stirred, thereby having the advantage of preventing the impurities from being deposited on the bottom of the valve seat, and effectively avoiding affecting the normal movement of the valve disc. When the valve disc moves down and contacts the top of the limit block to close, the liquid remaining in the bottom of the valve seat enters the rotating tube through the through hole, and then enters the connecting pipe and the inclined pipe to be discharged from the water outlet pipe, thereby effectively preventing the residual water in the valve seat cavity from freezing when working at sub-zero temperatures, freezing the valve seat and the valve disc together, and avoiding damage to the drain valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 This is a bottom-up stereoscopic schematic diagram of the utility model;
[0018] Figure 3 It is a partially cutaway stereoscopic schematic diagram of the utility model;
[0019] Figure 4 It is a partial exploded perspective schematic diagram of the screw rod and the rotating drum of the utility model.
[0020] In the figure: 1. valve seat; 2. water inlet pipe; 3. water outlet pipe; 4. nut; 5. screw rod; 6. valve disc; 7. hand wheel; 8. sealing gasket; 9. driving mechanism; 91. connecting plate; 92. rotating drum; 93. gear one; 94. servo motor; 95. gear two; 96. limit strip; 10. drainage mechanism; 101. rotating pipe; 102. fan blade one; 103. rotating rod; 104. fan blade two; 105. belt pulley; 106. belt; 107. connecting pipe; 108. inclined pipe; 109. through hole; 11. cover body; 12. limit block. DETAILED DESCRIPTION
[0021] See also Figure 1-Figure 4 , a pipeline drain valve assembly, including a valve seat 1, the left side of the valve seat 1 is connected with a water inlet pipe 2, the right side of the valve seat 1 is connected with a water outlet pipe 3, the top of the valve seat 1 is penetrated and fixedly inlaid with a nut 4, the inner wall of the nut 4 is threadedly connected with a screw rod 5, the lower end of the screw rod 5 is rotatably connected with a valve disc 6 through a bearing, the upper end of the screw rod 5 is fixedly connected with a hand wheel 7, a sealing gasket 8 is arranged between the inner wall of the valve seat 1 and the surface of the valve disc 6, the surface of the sealing gasket 8 is fixedly connected to the inner wall of the valve seat 1, a driving mechanism 9 is installed on the surface of the screw rod 5, and a drainage mechanism 10 is installed at the bottom of the valve seat 1;
[0022] The driving mechanism 9 includes a connecting plate 91, a rotating drum 92, a gear 1 93, a servo motor 94, a gear 2 95 and a limit bar 96, and the drainage mechanism 10 includes a rotating tube 101, a fan blade 102, a rotating rod 103, a fan blade 2 104, a belt pulley 105, a belt 106, a connecting tube 107, an inclined tube 108 and a through hole 109.
[0023] See also Figure 3 and Figure 4 The bottom of the connecting plate 91 is fixedly connected to the top of the valve seat 1, the lower end of the rotating cylinder 92 is rotatably embedded in the top of the connecting plate 91 through a bearing, the rotating cylinder 92 is movably sleeved on the surface of the upper end of the screw rod 5, and the gear 1 93 is fixedly sleeved on the surface of the upper end of the rotating cylinder 92. The bottom of the servo motor 94 is fixedly connected to the rear side of the top of the valve seat 1. By setting the servo motor 94, the rotation of the gear 2 95 is accurately controlled, thereby driving the accurate rotation of the gear 1 93. The rotating shaft of the servo motor 94 is fixedly connected to the bottom of the gear 2 95.
[0024] See also Figure 3 and Figure 4 Gear 1 93 is meshed with gear 2 95, the right side of the limit strip 96 is fixedly connected to the right side of the inner cavity of the rotating drum 92, and a limit groove adapted to the limit strip 96 is provided on the right side of the screw rod 5. By setting the limit strip 96 and the limit groove, the screw rod 5 can be driven to rotate when the rotating drum 92 rotates, and at the same time, it does not affect the upward movement of the screw rod 5 when it rotates. The left side of the limit strip 96 extends to the inner cavity of the limit groove.
[0025] See also Figure 2 and Figure 3 There are three rotating tubes 101, which are rotatably embedded in the bottom of the valve seat 1 through sealed bearings, the bottom of the fan blade 102 is fixedly connected to the upper end of the rotating tube 101, one end of the rotating rod 103 is rotatably embedded in the bottom of the water outlet pipe 3 through a sealed bearing, the bottom of the fan blade 2 104 is fixedly connected to the upper end of the rotating rod 103, there are four belt pulleys 105, which are respectively fixedly sleeved on the surfaces of the three rotating tubes 101 and the lower ends of the rotating rod 103, and the belt 106 is transmission sleeved on the surface of the belt pulley 105. By setting the belt pulley 105 and the belt 106, the multiple rotating tubes 101 are driven to rotate under the rotation of the rotating rod 103.
[0026] See also Figure 2 and Figure 3 The three ends of the connecting pipe 107 are rotatably connected to the lower ends of the three rotating pipes 101 through sealed bearings. By setting the connecting pipe 107, the inclined pipe 108 and the multiple rotating pipes 101 are indirectly connected, and the liquid entering the rotating pipe 101 can flow into the inclined pipe 108 and then be discharged into the water outlet pipe 3. There are two inclined pipes 108, and their two ends are respectively connected to the connecting pipe 107 and the water outlet pipe 3.
[0027] See also Figure 1 , Figure 2 and Figure 3 The front and rear sides of the top of the valve seat 1 are fixedly connected with a cover body 11 by bolts. By setting the cover body 11, the driving mechanism 9 is shielded and protected. The two sides of the bottom of the inner cavity of the valve seat 1 are fixedly connected with a limit block 12. By setting the limit block 12, the valve disc 6 is limited after closing, thereby protecting the fan blade 102 to avoid damage to the fan blade 102 caused by excessive downward movement.
[0028] When in use, the operation of the servo motor 94 is controlled to rotate the gear 2 95, which in turn drives the gear 1 93, the drum 92 and the limit strip 96 to rotate, so that the screw rod 5 rotates and moves upward, and the valve flap 6 moves upward, which can be electrically opened to release water. The number of revolutions of the servo motor 94 shaft is controlled to control the size of the valve opening, and even if the power is off, the screw rod 5 can be driven to rotate and move by turning the hand wheel 7 to realize the opening and closing of the valve flap 6, which is flexible and convenient. During the process of opening the valve flap 6 to release water, the water flow drives the fan blade 2 104 to rotate, so that the rotating rod 103 and the belt pulley 105 at its lower end rotate, and under the action of the belt 106 The plurality of rotating tubes 101 and the belt pulleys 105 thereon are rotated, and the plurality of fan blades 102 are rotated to stir the impurities deposited at the bottom of the valve seat 1, so as to prevent the impurities from being deposited at the bottom of the valve seat 1 and effectively avoid affecting the normal movement of the valve flap 6. When the valve flap 6 moves down and contacts the top of the limit block 12 to close, the liquid remaining at the bottom of the valve seat 1 enters the rotating tube 101 through the through hole 109, and then enters the connecting pipe 107 and the inclined pipe 108 to be discharged from the water outlet pipe 3, thereby effectively preventing the residual water in the cavity of the valve seat 1 from freezing when working at sub-zero temperatures, freezing the valve seat 1 and the valve flap 6 together, and avoiding damage to the drain valve.
[0029] In summary: the pipeline drain valve assembly, through the cooperation of the driving mechanism 9 and the drainage mechanism 10, solves the problem that impurities are easily deposited at the bottom of the valve body, affecting the normal movement and closing of the valve disc, and when working at sub-zero temperatures, the residual water in the valve body cavity will freeze, and the valve body and the valve disc will freeze together, sometimes even causing damage to the drain valve over time.
Claims
1. A pipeline drain valve assembly, comprising a valve seat (1), the left side of the valve seat (1) being connected to a water inlet pipe (2), the right side of the valve seat (1) being connected to a water outlet pipe (3), the top of the valve seat (1) being penetrated and fixedly inlaid with a nut (4), the inner wall of the nut (4) being threadedly connected to a screw rod (5), the lower end of the screw rod (5) being rotatably connected to a valve disc (6) via a bearing, and the upper end of the screw rod (5) being fixedly connected to a hand wheel (7), characterized in that: A sealing gasket (8) is provided between the inner wall of the valve seat (1) and the surface of the valve disc (6); the surface of the sealing gasket (8) is fixedly connected to the inner wall of the valve seat (1); a driving mechanism (9) is installed on the surface of the screw rod (5); and a drainage mechanism (10) is installed at the bottom of the valve seat (1); The driving mechanism (9) comprises a connecting plate (91), a rotating drum (92), a gear one (93), a servo motor (94), a gear two (95) and a limit strip (96); the drainage mechanism (10) comprises a rotating tube (101), a fan blade one (102), a rotating rod (103), a fan blade two (104), a belt pulley (105), a belt (106), a connecting tube (107), an inclined tube (108) and a through hole (109).
2. A pipeline drain valve assembly according to claim 1, characterized in that: The bottom of the connecting plate (91) is fixedly connected to the top of the valve seat (1); the lower end of the rotating cylinder (92) is rotatably mounted on the top of the connecting plate (91) via a bearing; the rotating cylinder (92) is movably sleeved on the surface of the upper end of the screw rod (5); the gear 1 (93) is fixedly sleeved on the surface of the upper end of the rotating cylinder (92); the bottom of the servo motor (94) is fixedly connected to the rear side of the top of the valve seat (1); and the rotating shaft of the servo motor (94) is fixedly connected to the bottom of the gear 2 (95).
3. A pipeline drain valve assembly according to claim 1, characterized in that: The gear 1 (93) is meshed with the gear 2 (95); the right side of the limit strip (96) is fixedly connected to the right side of the inner cavity of the rotating drum (92); the right side of the screw rod (5) is provided with a limit slot matched with the limit strip (96); the left side of the limit strip (96) extends to the inner cavity of the limit slot.
4. A pipeline drain valve assembly according to claim 1, characterized in that: The number of the rotating tubes (101) is three, and they are respectively rotatably embedded in the bottom of the valve seat (1) through sealed bearings; the bottom of the fan blade 1 (102) is fixedly connected to the upper end of the rotating tube (101); one end of the rotating rod (103) is rotatably embedded in the bottom of the water outlet pipe (3) through a sealed bearing; the bottom of the fan blade 2 (104) is fixedly connected to the upper end of the rotating rod (103); the number of the belt pulleys (105) is four, and they are respectively fixedly sleeved on the surfaces of the three rotating tubes (101) and the lower end of the rotating rod (103); and the belt (106) is transmission sleeved on the surface of the belt pulley (105).
5. A pipeline drain valve assembly according to claim 1, characterized in that: The three ends of the connecting pipe (107) are rotatably connected to the lower ends of the three rotating pipes (101) through sealing bearings respectively. The number of the inclined pipes (108) is two, and the two ends thereof are respectively connected to the connecting pipe (107) and the water outlet pipe (3).
6. A pipeline drain valve assembly according to claim 1, characterized in that: The front and rear sides of the top of the valve seat (1) are fixedly connected to a cover body (11) by bolts, and the two sides of the bottom of the inner cavity of the valve seat (1) are fixedly connected to limit blocks (12).