Water drainage switch component

Abstract

The invention discloses a water drainage switch component, and relates to the technical field of engine water drainage. The water drain valve comprises a water drain valve body and a water drain valve connector which are in threaded connection, the water drain valve body is fixedly communicated with an installation cylinder, a baffle is arranged on the peripheral face of the installation cylinder in the axis direction of the water drain valve body, a ball valve is rotationally arranged in the water drain valve body, and a water drain valve actuator for controlling the ball valve to rotate is rotationally arranged in the installation cylinder. A water drain handle for controlling the water drain valve actuator to rotate is rotationally arranged at the top of the mounting cylinder; a limiting arc plate matched with the baffle is fixedly arranged at the bottom of the drainage handle; the water drain valve actuator can be driven to rotate when the water drain handle is rotated through cooperation of the shaft head and the shaft groove, then the ball valve is driven to rotate, the ball valve controls opening and closing of cooling water in the water drain valve body, and the water drain handle can be conveniently rotated by 90 degrees through cooperation of the limiting arc plate and the baffle so that the ball valve can be completely closed. Therefore, water leakage of the water drain valve body caused by excessive rotation or insufficient rotation is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of engine drainage, and in particular to a water drain switch component. Background Art

[0002] An engine is a machine that converts the chemical energy of fuel into mechanical energy. It generates high-temperature and high-pressure gas by burning fuel, which drives mechanical parts to move, thereby driving the equipment to operate.

[0003] Engine cooling water is a medium that circulates to dissipate heat from the engine, and has the functions of cooling, balancing temperature, and protecting components.

[0004] The engine is the "heart" of the machine, converting power through fuel combustion, while the cooling water system is the "thermostat" that ensures the normal operation of the engine. The two work together to ensure the efficient and safe operation of the machine.

[0005] Typically, cooling water is drained from the engine via a drain valve. Effective and timely drainage in winter prevents freezing and expansion of cooling water in the engine, making it difficult to start and shortening its lifespan. In hot summer weather, however, the engine needs to retain cooling water for proper cooling. While traditional drain valves can drain water, they are difficult to rotate the handle to the designated position. Over- or under-rotation of the handle can lead to a loose seal, potentially causing leakage in the engine. Summary of the Invention

[0006] The purpose of the present invention is to provide a water drain switch component to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a drain switch component, comprising a drain valve body and a drain valve joint connected by a thread, the drain valve body being fixedly connected with a mounting cylinder, the outer peripheral surface of the mounting cylinder being provided with a baffle along the axial direction of the drain valve body, a ball valve being rotatably provided in the drain valve body, a drain valve actuator for controlling the rotation of the ball valve being rotatably provided in the mounting cylinder, a drain handle for controlling the rotation of the drain valve actuator being rotatably provided on the top of the mounting cylinder; a limiting arc plate cooperating with the baffle being fixedly provided at the bottom of the drain handle, and when the drain handle rotates, the ball valve is driven to rotate to control the opening and closing of the drain valve body, and the ball valve and the drain valve actuator are rotated to a specified position through the abutment of the limiting arc plate and the baffle.

[0008] Preferably, a shaft head is fixedly provided on the top of the drain valve actuator, a conical disk is fixedly provided on the short arm end of the drain handle, and a shaft groove adapted to the shaft head is provided at the bottom of the conical disk.

[0009] Preferably, a screw is rotatably provided on the drain handle, a threaded groove adapted to the screw is provided on the shaft head, and a flat washer is provided on the screw.

[0010] Preferably, a first sealing ring is sleeved on the middle of the drain valve actuator, a circular arc boss is fixedly provided on the bottom of the drain valve actuator, and a circular arc groove adapted to the circular arc boss is fixedly provided on the top of the ball valve.

[0011] Preferably, the inner cavity of the drain valve body is provided with a front-valve limit stop, and the front-valve limit stop is interference-fitted with a front-valve limit sleeve.

[0012] Preferably, a rear valve limit stop is provided at one end of the drain valve connector close to the drain valve body, and a rear valve limit sleeve is interference-fitted in the rear valve limit stop.

[0013] Preferably, a second sealing ring is provided on the outer peripheral surface of the drain valve joint.

[0014] Preferably, the drain valve actuator, ball valve, drain valve body and drain valve joint are all made of brass.

[0015] Preferably, the drain handle, the front-valve limiting sleeve and the rear-valve limiting sleeve are made of plastic, and the first sealing ring and the second sealing ring are both made of nitrile rubber.

[0016] In the above technical solution, the present invention provides a drain switch component, which has the following beneficial effects: the cooperation of the first sealing ring and the second sealing ring can ensure the sealing between the drain valve body and the drain valve joint; the cooperation of the shaft head and the shaft groove can drive the drain valve actuator to rotate when the drain handle is rotated, and then drive the ball valve to rotate, so that the ball valve controls the opening and closing of the cooling water in the drain valve body; the cooperation of the limiting arc plate and the baffle can facilitate the drain handle to rotate 90 degrees to completely close the ball valve, thereby preventing the drain valve body from leaking due to excessive or insufficient rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram of a ball valve provided in an embodiment of the present invention;

[0020] Figure 3A schematic structural diagram of a drain valve body provided in an embodiment of the present invention;

[0021] Figure 4 A schematic structural diagram of a drain valve connector provided in an embodiment of the present invention;

[0022] Figure 5 A schematic structural diagram of a limiting arc plate provided in an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Drain valve body; 2. Drain valve connector; 3. Drain handle; 4. Flat washer; 5. Screw; 6. First sealing ring; 7. Drain valve actuator; 8. Valve front limit sleeve; 9. Ball valve; 10. Valve rear limit sleeve; 11. Second sealing ring; 12. Conical disk; 13. Limit arc plate; 14. Baffle; 15. Arc boss; 16. Arc groove; 17. Shaft head; 18. Shaft groove; 19. Mounting cylinder; 20. Valve front limit stop; 21. Valve rear limit stop. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1-5, a drain switch component, including a drain valve body 1 and a drain valve joint 2 connected by thread, the drain valve body 1 is fixedly connected with a mounting cylinder 19, the outer circumferential surface of the mounting cylinder 19 is provided with a baffle 14 along the axial direction of the drain valve body 1, a ball valve 9 is rotatably provided in the drain valve body 1, a drain valve actuator 7 for controlling the rotation of the ball valve 9 is rotatably provided in the mounting cylinder 19, a drain handle 3 for controlling the rotation of the drain valve actuator 7 is rotatably provided on the top of the mounting cylinder 19, a limiting arc plate 13 cooperating with the baffle 14 is fixedly provided at the bottom of the drain handle 3, when the drain handle 3 rotates, the ball valve 9 is driven to rotate to control the opening and closing of the drain valve body 1, and the ball valve 9 and the drain valve actuator 7 are rotated to the specified position through the abutment of the limiting arc plate 13 and the baffle 14; the ball valve 9 has a through hole running through it, and the ball valve 9 is rotatably provided in the center position of the drain valve body 1 to control the water flow, The mounting tube 19 is located directly above the ball valve 9. When the ball valve 9 is in the drain valve body 1, the drain valve actuator 7 is engaged with the ball valve 9, and the drain handle 3 is in the shape of a "7". In the initial state, the long arm end of the drain handle 3 is parallel to the axis of the drain valve body 1. When the drain valve body 1 needs to be closed, the drain handle 3 is rotated to drive the drain valve actuator 7 and the ball valve 9 to rotate. When the limiting arc plate 13 abuts against the baffle 14, the drain handle 3 rotates 90 degrees. At this time, the ball valve 9 completely blocks the through hole of the drain valve body 1, that is, the ball valve 9 is completely closed. The cooperation of the limiting arc plate 13 and the baffle 14 can facilitate the rotation of the drain handle 3 by 90 degrees. The cooperation of the limiting arc plate 13 and the baffle 14 makes the drain handle 3 only rotate 90 degrees left and right in the initial state, which can prevent the drain handle 3 from over-rotating or under-rotating and causing the drain valve body 1 to leak.

[0027] Furthermore, a shaft head 17 is fixedly provided on the top of the drain valve actuator 7, a conical disk 12 is fixedly provided on the short arm end of the drain handle 3, and an shaft groove 18 adapted to the shaft head 17 is provided at the bottom of the conical disk 12; a limiting arc plate 13 is fixedly provided at the bottom of the conical disk 12, and the shaft head 17 is rectangular. During installation, the shaft groove 18 at the short arm end of the drain handle 3 is snap-fitted with the shaft head 17. Through the cooperation between the shaft groove 18 and the shaft head 17, when the drain handle 3 rotates, it can drive the shaft head 17 and the drain valve actuator 7 to rotate, thereby driving the ball valve 9 to rotate and control the opening and closing of the drain valve body 1. When the drain handle 3 rotates, it drives the limiting arc plate 13 to rotate. When the drain handle 3 rotates 90 degrees, the rotating arc plate abuts against the baffle 14.

[0028] Furthermore, a screw 5 is rotatably provided on the drain handle 3, a threaded groove adapted to the screw 5 is provided on the shaft head 17, and a flat washer 4 is provided on the screw 5; the screw 5 is adapted to the threaded groove and both are left-hand threads, the head of the screw 5 is provided with a cross groove, and the tail is a thread, and a countersunk hole for inserting the screw 5 is provided on the drain handle 3. By screwing the screw 5 into the threaded groove on the shaft head 17, the drain valve actuator 7 and the drain handle 3 are fixed together. When tightening the screw 5, the pressure is evenly dispersed through the flat washer to prevent damage to the connection between the top of the screw 5 and the drain handle 3, and it also has the effect of preventing loosening.

[0029] Specifically, the middle part of the drain valve actuator 7 is sleeved with a first sealing ring 6, the bottom of the drain valve actuator 7 is fixedly provided with an arc boss 15, and the top of the ball valve 9 is fixedly provided with an arc groove 16 adapted to the arc boss 15; the drain valve actuator 7 is in sliding contact with the inner wall of the mounting tube 19, and the first sealing ring 6 is interference fit with the inner ring of the mounting tube 19. The outer circumference of the drain valve actuator 7 is provided with an annular groove for sleeved with the first sealing ring 6. The annular groove can prevent the first sealing ring 6 from shifting, and the first sealing ring 6 can ensure the sealing performance of the mounting tube 19. The arc groove 16 is perpendicular to the through hole in the center of the ball valve 9 but is not connected. The ball valve 9 is rotatably arranged in the middle of the drain valve body 1, and the arc groove 16 on the ball valve 9 is slidably plugged into the arc boss 15. When the drain handle 3 is installed on the mounting cylinder 19, the arc boss 15 at the bottom of the drain valve actuator 7 is fully inserted into the arc groove 16, thereby connecting the drain valve actuator 7 and the ball valve 9 together. When the drain valve actuator 7 rotates, the ball valve 9 is driven to rotate. The front end of the drain valve body 1 is a standard tapered thread, and the tail end is a hexagonal nut joint with a threaded inner ring. The mounting cylinder 19 has a through hole and is fixedly arranged in the middle position of the drain valve body 1. The through hole of the mounting cylinder 19 intersects with the inner cavity distributed along the axis of the drain valve body 1.

[0030] In another embodiment of the present invention: the inner cavity of the drain valve body 1 is provided with a front valve limit stop 20, and the front valve limit stop 20 is interference fit with the front valve limit sleeve 8; the front valve limit stop 20 of the ball valve 9 is located at the front end of the drain valve body 1, and the front valve limit sleeve 8 is located in the front valve limit stop 20, and the front valve limit sleeve 8 is used to abut and support the side of the ball valve 9 away from the drain valve joint 2, and the tail of the front valve limit sleeve 8 is inserted into the inner ring of the tail of the drain valve body 1 and abuts against the inner ring wall, which has a certain positioning effect.

[0031] Specifically, the drain valve joint 2 is provided with a valve rear limit stop 21 at one end close to the drain valve body 1, and a valve rear limit sleeve 10 is interference-fitted in the valve rear limit stop 21; the outer peripheral surface of the drain valve joint 2 at one end close to the drain valve body 1 is provided with a thread groove adapted to the internal thread of the hexagonal nut joint, and the drain valve joint 2 is connected to the drain valve body 1 through the cooperation of the thread groove on the drain valve joint 2 and the internal thread of the hexagonal nut joint of the drain valve body 1, and the drain valve joint 2 is away from the drain valve body 1. The rear end is a hollow cylinder with a protrusion. When the drain valve body 1 and the drain valve joint 2 are threaded together, the ball valve 9 is located between the front valve limit sleeve 8 and the rear valve limit sleeve 10. At this time, the ball valve 9 is abutted and supported by the front valve limit sleeve 8 and the rear valve limit sleeve 10. The front valve limit sleeve 8 and the rear valve limit sleeve 10 both have a through hole smaller than the diameter of the ball valve 9. The tail of the rear valve limit sleeve 10 is inserted into the inner ring of the front part of the drain valve joint 2 and abuts against the inner ring wall, which also has a certain positioning effect.

[0032] Furthermore, a second sealing ring 11 is sleeved on the outer circumference of the drain valve joint 2; an annular groove adapted to the second sealing ring 11 is opened on the outer circumference of the drain valve joint 2, and the annular groove is located at the end of the threaded groove on the outer circumference of the drain valve joint 2 away from the mounting tube 19. When the drain valve joint 2 is connected to the drain valve body 1, the second sealing ring 11 is tightly abutted against the inner ring of the drain valve body 1. The second sealing ring 11 can ensure the sealing of the connection between the drain valve joint 2 and the drain valve body 1 to prevent water leakage.

[0033] Specifically, the drain valve actuator 7, ball valve 9, drain valve body 1, and drain valve joint 2 are all made of brass; the drain valve actuator 7, ball valve 9, drain valve body 1, and drain valve joint 2 made of brass have good mechanical properties, both toughness and wear resistance, excellent corrosion resistance and good processability. In addition, they also have good sealing and surface finish, good thermal conductivity and other advantages.

[0034] Furthermore, the drain handle 3, the front valve limit sleeve 8 and the rear valve limit sleeve 10 are made of plastic, and the first sealing ring 6 and the second sealing ring 11 are made of nitrile rubber; the first sealing ring 6 and the second sealing ring 11 made of nitrile rubber have excellent oil resistance, are suitable for use in engine accessories, and have good media compatibility and chemical stability, excellent sealing and elastic recovery, etc.

[0035] Working principle: Rotate the drain handle 3 to control the rotation of the ball valve 9 through the drain valve actuator 7. When the through hole of the ball valve 9 and the inner hole of the drain valve body 1 are on the same axis, the ball valve 9 is in a fully open state, that is, the drain handle 3 and the axis of the drain valve body 1 are parallel. When the drain handle 3 is rotated to make the limit arc plate 13 abut against the baffle 14, the drain handle 3 rotates 90 degrees and is perpendicular to the axis of the drain valve body 1. At this time, the physical part of the ball valve 9 completely blocks the inner hole of the drain valve body 1, and the ball valve 9 is in a fully closed state.

[0036] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A drain switch component, comprising a drain valve body (1) and a drain valve connector (2) connected by threads, characterized in that: The drain valve body (1) is fixedly connected to a mounting cylinder (19), and a baffle (14) is provided on the outer peripheral surface of the mounting cylinder (19) along the axial direction of the drain valve body (1). A ball valve (9) is rotatably provided in the drain valve body (1), and a drain valve actuator (7) for controlling the rotation of the ball valve (9) is rotatably provided in the mounting cylinder (19). A drain handle (3) for controlling the rotation of the drain valve actuator (7) is rotatably provided on the top of the mounting cylinder (19); A limiting arc plate (13) cooperating with the baffle (14) is fixedly provided at the bottom of the drain handle (3). When the drain handle (3) rotates, the ball valve (9) is driven to rotate to control the opening and closing of the drain valve body (1), and the ball valve (9) and the drain valve actuator (7) are rotated to a specified position through the contact between the limiting arc plate (13) and the baffle (14).

2. A water drain switch component according to claim 1, characterized in that: A shaft head (17) is fixedly provided on the top of the drain valve actuator (7), a conical disc (12) is fixedly provided on the short arm end of the drain handle (3), and a shaft groove (18) adapted to the shaft head (17) is provided on the bottom of the conical disc (12).

3. A water drain switch component according to claim 2, characterized in that: A screw (5) is rotatably provided on the water discharge handle (3), a threaded groove adapted to the screw (5) is provided on the shaft head (17), and a flat washer (4) is provided on the screw (5).

4. A water drain switch component according to claim 3, characterized in that: A first sealing ring (6) is sleeved on the middle of the drain valve actuator (7), a circular arc boss (15) is fixedly provided on the bottom of the drain valve actuator (7), and a circular arc groove (16) adapted to the circular arc boss (15) is fixedly provided on the top of the ball valve (9).

5. A water drain switch component according to claim 4, characterized in that: The inner cavity of the drain valve body (1) is provided with a front valve limit stop (20), and the front valve limit stop (20) is interference-fitted with a front valve limit sleeve (8).

6. A water drain switch component according to claim 5, characterized in that: A rear valve limit stop (21) is provided at one end of the drain valve connector (2) close to the drain valve body (1), and a rear valve limit sleeve (10) is interference-fitted in the rear valve limit stop (21).

7. A water drain switch component according to claim 6, characterized in that: A second sealing ring (11) is sleeved on the outer peripheral surface of the drain valve joint (2).

8. A water drain switch component according to claim 7, characterized in that: The drain valve actuator (7), ball valve (9), drain valve body (1), and drain valve connector (2) are all made of brass.

9. A water drain switch component according to claim 8, characterized in that: The material of the water discharge handle (3), the front valve limit sleeve (8) and the rear valve limit sleeve (10) is plastic, and the material of the first sealing ring (6) and the second sealing ring (11) are both nitrile rubber.

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