Swing type time-delay valve core

Abstract

The invention relates to a swing type time-delay valve element which comprises a valve shell provided with a water inlet and a water outlet. The valve handle penetrates through the valve shell in a left-right swinging manner; the fixed valve plate is fixed at the bottom in the valve shell; the movable valve plate is arranged at the top of the fixed valve plate, the movable valve plate is driven by swinging of the valve handle to slide left and right, the sliding of the movable valve plate is used for changing the flow of water flowing out, the flow of the water outlet is zero in an initial state, and water flows out of the water outlet in an open state; the safety valve is characterized in that a reset structure is arranged on the valve handle, the reset structure enables the valve handle to have the tendency of swinging towards the initial position when the valve handle swings to the opening position, a damping structure is further arranged on the valve handle, and the damping structure enables the valve handle to swing slowly from the opening position to the initial position. A conventional design thought of technicians in the field is abandoned, a traditional pressing type time-delay opening and closing operation mode is changed, and the swing type opening and closing valve element which is of a brand new structure and achieves the time-delay closing function is provided.

Description

Technical Field

[0001] The invention relates to a time-delay valve core for controlling water outlet, in particular to a swing-type time-delay valve core. Background Art

[0002] The valve core is a valve part that controls the flow rate, water flow direction or water temperature by axial movement, up and down swing or rotation of the valve stem inside the valve body. It is widely used in faucets. The time-delay valve core is a type of switch valve core. It has the characteristics of delayed self-closing, can effectively save water, and is not prone to cross contamination when used on faucets. Therefore, the time-delay valve core is widely used in faucets in public places such as public toilets, hotels or stations.

[0003] Most of the mechanical delayed self-closing faucets currently used use water or gas as the damping medium, and use fixed grooves or small holes to form a channel connected to the delay storage chamber. By axially moving the valve stem and driving the axial movement of the piston, the fluid in the delay storage chamber is quickly discharged. When the pressing effect applied to the valve stem disappears, under the action of the spring and the water sucked into the delay storage chamber through the channel, the valve stem slowly moves axially and resets to close the valve port. For example, a Chinese utility model patent with patent number ZL201922044045.X (with authorization announcement number CN211288855U) discloses a multifunctional time-delay valve core, including a housing and a base; a switch delay component and a mediation component are arranged in the housing; the mediation component includes a static water valve plate and a dynamic water valve plate; the switch delay component and the mediation component are connected by a locking position to drive the dynamic water valve plate to rotate relative to the static water valve plate, thereby controlling the water flow ratio of the first water hole to the second water hole and the third water hole; the static water valve plate is installed on the fixed seat, and the housing and the fixed seat are relatively statically connected; the switch delay component includes a valve body, a moving part, a piston, a deformable sealing part, a spring, and a hydraulic solution; the piston is fixed on the moving part, and the deformable sealing part is fixed in the piston groove. Another Chinese utility model patent with patent number ZL202122637589.4 (with authorization announcement number CN217634094U) discloses a similar push-type time-delay valve core.

[0004] The existing time-delay valve cores are all push-type time-delay valve cores, and other drive modes (such as swing-type) valve cores do not have the time-delay closing function. In other words, the push-type has become a common choice for technicians in the field when designing the time-delay valve core drive mode. With the competition in the industry, customers need a new drive mode of time-delay valve core. This requires technicians in the field to abandon the existing design thinking and develop a new structure of the time-delay valve core. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a swing-type time-delay valve core with a completely new structure and a time-delay function for the swing-type valve core in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the present invention to solve the above technical problems is as follows: A swing-type time-delay valve core, including a valve housing, provided with a water inlet and a water outlet; a valve handle, passing through the valve housing and capable of swinging left and right; a fixed valve plate, fixed at the bottom inside the valve housing; a movable valve plate, arranged on the top of the fixed valve plate, and the movable valve plate is driven by the swing of the valve handle to slide left and right, and the sliding of the movable valve plate is used to change the water flow rate. In the initial state, the water flow rate at the water outlet is zero, and in the open state, water flows out of the water outlet; characterized in that: a reset structure is provided on the valve handle, and the reset structure makes the valve handle tend to swing towards the initial position when swinging to the open position, and a damping structure is also provided on the valve handle, and the damping structure makes the swing process of the valve handle from the open position to the initial position a slow swing.

[0007] As an alternative solution, the above valve handle is directly rotatably connected to the valve housing through a pivot, and the reset structure is a torsion spring or a spring plunger; the torsion spring is sleeved on the pivot of the valve handle, one end of the torsion spring abuts against the valve housing, and the other end of the torsion spring abuts against the side wall of the valve handle; the spring plunger includes a plug, a spring and a piston. A stepped through hole is provided horizontally through the valve handle, and the stepped through hole is located above the pivot. The plug is threadedly connected to the end of the stepped through hole, the piston is arranged in the stepped through hole and can move horizontally, and the spring is arranged in the stepped through hole and acts on the piston to make the outer end of the piston protrude from the valve handle and abut against the inner wall of the valve housing. This valve core only has the function of opening and closing the water flow, which is the same as that of a conventional extended valve core. The reset structure can be selected from a torsion spring or a spring plunger, and both have their own advantages and disadvantages. Of course, other elastic members can also be used to achieve swing reset, such as a tension spring.

[0008] To ensure the smooth radial sliding of the movable valve plate relative to the rotor, a dial capable of sliding left and right is constrained inside the above valve housing. The movable valve plate is installed below the dial and can move with the dial. The lower end of the valve handle is inserted into the dial so that the swing of the valve handle can drive the sliding of the dial; as a specific solution of the damping structure, there are the following two types. The damping structure is elastic feet provided on the front and rear sides of the top of the dial, and the elastic feet elastically press against the inner wall of the valve housing, thereby forming damping for the left and right sliding of the dial; or the damping structure is a rubber elastic body fixed inside the valve housing, and the elastic rubber body is in frictional contact with the front and rear side walls of the dial, thereby forming damping for the left and right sliding of the dial. Both achieve damping through frictional contact with the dial. When resetting, it is necessary to overcome the frictional force between the elastic feet and the inner wall of the valve housing or the elastic rubber body on the dial, so that the dial slowly slides back to the initial position direction.

[0009] To enable the time-delay valve core to also have a water mixing function (water temperature adjustment function), a rotor capable of rotating around its own axis is installed in the above valve housing. A dial is provided at the bottom of the rotor. The dial can rotate with the rotor and can also slide relative to the rotor. The movable valve plate is installed below the dial and can rotate or slide with the dial. The rotation of the movable valve plate is used to adjust the mixing ratio of cold water and hot water. The valve handle passes through and is hinged in the through-hole of the rotor through a pivot. The lower end of the valve handle is inserted into the dial so that the swing of the valve handle can drive the sliding of the dial.

[0010] For the above time-delay valve core structure with a water mixing function, the reset structure also has corresponding different design structures. The above reset structure is a torsion spring or a spring plunger. The torsion spring is sleeved on the pivot of the valve handle. One end of the torsion spring abuts against the inner wall of the rotor, and the other end of the torsion spring abuts against the side wall of the valve handle. The spring plunger includes a plug, a spring, and a piston. A stepped through-hole penetrating horizontally is provided on the valve handle. The stepped through-hole is located above the pivot. The plug is threadedly connected to the end of the stepped through-hole. The piston is arranged in the stepped through-hole and can move horizontally. The spring is arranged in the stepped through-hole and acts on the piston, so that the outer end of the piston extends out of the valve handle and abuts against the inner hole wall of the rotor. It makes the reset structure act between the valve handle and the rotor and does not directly act on the valve housing, and the structural design is more reasonable and convenient.

[0011] To prevent the piston from contacting the inner hole wall of the rotor for a long time and wearing the inner hole wall of the rotor, a gasket is also inserted on the inner hole wall of the above rotor. The outer end of the piston extends out of the valve handle and abuts against the gasket.

[0012] As an improvement, two inner bosses spaced along the circumference are provided at the inner top of the above valve housing. The side wall of the rotor has a laterally protruding limit block. The limit block is located between the two inner bosses to limit the rotation angle of the rotor. This structure limits the rotation angle of the rotor. At one extreme angle position, the limit block is engaged with one of the inner bosses, and the cold water channel is completely communicated with the water mixing inlet. At the other extreme angle position, the limit block is engaged with the other inner boss, and the hot water channel is completely communicated with the water mixing inlet. To ensure the smooth radial sliding of the movable valve plate relative to the rotor, a upwardly protruding guiding platform is provided on the top surface of the above dial. A guiding groove matching the guiding platform is provided at the bottom of the rotor. The guiding platform is placed in the guiding groove and can slide.

[0013] Preferably, the torsion spring has a transverse arm. The left and right ends of the transverse arm are provided with mounting arms extending downward. A collar portion for sleeving on the pivot is formed on the mounting arm. The tail end of the mounting arm is bent outward to form a pressing end. The transverse arm abuts against the side wall of the valve stem, and the pressing end is hooked on the bottom of the inner boss on the inner hole wall of the rotor. The pressing ends at both ends of the torsion spring hook the bottom of the inner boss of the rotor, so that the transverse arm of the torsion spring can provide a lateral elastic force to the valve stem. To avoid the torsion spring applying a large torque to the valve stem in the initial state, a blocking wall for blocking the torsion spring is further provided on the rotor. When the valve stem is in the initial position, the blocking wall blocks the torsion spring.

[0014] For the aforementioned time-delay valve core structure with a water mixing function, the damping structure also has corresponding different design structures. The above damping structure is elastic feet provided on the front and rear sides of the top of the dial. The elastic feet elastically press against the inner wall of the rotor, thereby forming damping for the left and right sliding of the dial; or, the damping structure is a rubber elastic body fixed inside the rotor. The elastic rubber body is in frictional contact with the front and rear side walls of the dial, thereby forming damping for the left and right sliding of the dial. Both achieve damping through frictional contact with the dial. When resetting, it is necessary to overcome the frictional force between the elastic feet and the inner wall of the rotor or the elastic rubber body and the dial, so that the dial slowly slides back to the initial position direction.

[0015] As the specific moving and fixed valve plate structures for realizing water temperature adjustment and opening / closing operations, as an option, there are two water inlets above, namely a cold water inlet and a hot water inlet, and there is only one water outlet; the fixed valve plate is provided with a cold water channel communicating with the cold water inlet, a hot water channel communicating with the hot water inlet, and a water outlet channel communicating with the hot water outlet; a water mixing cavity and a flow-through hole communicating with the water mixing cavity are provided inside the moving valve plate. The water mixing cavity is always communicated with the water outlet channel; when the moving valve plate slides to the initial state, the moving valve plate blocks the cold water channel and the hot water channel; when the moving valve plate slides to the open state, the cold water channel and / or the hot water channel are communicated with the water mixing cavity through the flow-through hole, and the rotation of the moving valve plate can change the overlapping area between the flow-through hole and the cold water channel and the hot water channel. The moving valve plate blocks the cold water channel and the hot water channel, so the water outlet channel does not discharge water. Different from the traditional way of blocking the water outlet channel, it is more conducive to layout.

[0016] Compared with the prior art, the advantages of this swinging delay valve core are as follows: The opening and closing of the water passage are realized by the swinging of the valve stem. Importantly, a reset structure is provided on the valve stem to make the valve stem tend to swing towards the initial position when it swings to the open position. Combined with a damping structure provided on the valve stem to make the swinging process of the valve stem from the open position to the initial position a slow swing, the delayed closing function of the swinging valve core is realized. It abandons the conventional design idea of those skilled in the art, changes the traditional pressing type delayed opening and closing operation mode, and provides a swinging opening and closing valve core with a new structure and realizing the delayed closing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the first embodiment Figure 1 (Initial state);

[0018] Figure 2 Schematic diagram of the three-dimensional structure of the first embodiment Figure 2 (Initial state);

[0019] Figure 3 Schematic cross-sectional view of the three-dimensional structure of the first embodiment (initial state);

[0020] Figure 4 Schematic cross-sectional view of the three-dimensional structure of the first embodiment (initial state);

[0021] Figure 5 Schematic cross-sectional view of the first embodiment (initial state, damping position);

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the first embodiment (open state);

[0023] Figure 7 Schematic cross-sectional view of the three-dimensional structure of the first embodiment (open state);

[0024] Figure 8 Schematic diagram of the cooperation between the moving valve plate and the moving valve plate of the first embodiment (initial state);

[0025] Figure 9 Schematic diagram of the cooperation between the moving valve plate and the moving valve plate of the first embodiment (open state);

[0026] Figure 10 Schematic three-dimensional diagram of the rotor in the first embodiment;

[0027] Figure 11 Schematic exploded view of the three-dimensional structure of the first embodiment;

[0028] Figure 12 Schematic diagram of the three-dimensional structure of the second embodiment Figure 1 (Initial state);

[0029] Figure 13 Stereoscopic sectional view of the second embodiment (initial state);

[0030] Figure 14 Schematic diagram of the three-dimensional structure of the second embodiment (open state);

[0031] Figure 15 Sectional view of the second embodiment (initial state, damping position). Detailed implementation manners

[0032] The present invention will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0033] As Figures 1 to 10 shown, it is a preferred embodiment of a swinging delay valve core.

[0034] A swinging delay valve core, comprising

[0035] a valve housing 1, provided with a water inlet and a water outlet 1c; the valve housing 1 is composed of a upper housing 11 and a base 12 which are snap-connected, and the base 12 forms the bottom of the valve housing 1. A fixed valve plate 3 is snap-connected to the base 12, and a sealing member is provided between the fixed valve plate 6 and the base 12.

[0036] a valve handle 8, which is arranged to pass through the valve housing 1 and can swing left and right.

[0037] a fixed valve plate 3, fixed at the bottom inside the valve housing 1.

[0038] a movable valve plate 5, arranged on the top of the fixed valve plate 3, and the movable valve plate 5 is driven by the swing of the valve handle 8 to slide left and right, and the sliding of the movable valve plate 5 is used to change the flow rate of the water flowing out. In the initial state, the flow rate of the water flowing out is zero, and in the open state, water flows out of the water outlet 1c.

[0039] In this embodiment, there are two water inlets, namely a cold water inlet 1a and a hot water inlet 1b respectively, and there is only one water outlet 1c; the fixed valve plate 3 is provided with a cold water channel 3a communicated with the cold water inlet 1a, a hot water channel 3b communicated with the hot water inlet 1b and a water outlet channel 3c communicated with the water outlet 1c; a mixing cavity 51 and a flow-through hole 52 communicated with the mixing cavity 51 are arranged inside the movable valve plate 5, and the mixing cavity 51 is always communicated with the water outlet channel 3c; when the movable valve plate 5 slides to the initial state, the movable valve plate 5 blocks the cold water channel 3a and the hot water channel 3b; when the movable valve plate 5 slides to the open state, the cold water channel 3a and / or the hot water channel 3b are communicated with the mixing cavity 51 through the flow-through hole 52, and the rotation of the movable valve plate 5 can change the overlapping area between the flow-through hole 52 and the cold water channel 7a and the hot water channel 7b.

[0040] In this embodiment, a rotor 2 capable of rotating about its own axis is installed in a valve housing 1. A dial 9 is provided at the bottom of the rotor 2. The dial 9 can rotate together with the rotor 2 and can slide relative to the rotor 2. A movable valve plate 5 is installed below the dial 9 and can rotate or slide along with the dial 9. The rotation of the movable valve plate 5 is used to adjust the mixing ratio of cold water and hot water. A valve handle 8 passes through and is hinged in a through hole of the rotor 2 through a pivot 8a. The lower end of the valve handle 8 is inserted into the dial 9 so that the swing of the valve handle 8 can drive the sliding of the dial 9. Two inner bosses 10 spaced along the circumference are provided at the inner top of the valve housing 1. A limiting block 22 protruding laterally is provided on the side wall of the rotor 2. The limiting block 22 is located between the two inner bosses 10 to limit the rotation angle of the rotor 2. A guiding platform 92 protruding upward is provided on the top surface of the dial 9. A guiding groove 21 matching the guiding platform 92 is provided at the bottom of the rotor 2. The guiding platform 92 is placed in the guiding groove 21 and can slide.

[0041] Of course, if the temperature adjustment function is not required, the valve handle 8 can be directly pivotally connected to the valve housing 1.

[0042] A reset structure is provided on the valve handle 8. The reset structure makes the valve handle 8 tend to swing towards the initial position when it swings to the open position. A damping structure is also provided on the valve handle 8. The damping structure makes the swing process of the valve handle 8 from the open position to the initial position a slow swing.

[0043] The reset structure in this embodiment is a torsion spring 6. The torsion spring 6 has a transverse arm 61. The left and right ends of the transverse arm 61 have downwardly extending mounting arms 62. A collar portion 63 for sleeving on the pivot is formed on the mounting arms 62. The tail end of the mounting arm 62 is bent outward to form a pressing end 64. The transverse arm 61 abuts against the side wall of the valve handle 8. The pressing end 64 is hooked on the bottom of the inner boss 21 on the inner hole wall of the rotor 2. A blocking wall 23 for blocking the torsion spring 6 is also provided on the rotor 2. When the valve handle 8 is in the initial position, the blocking wall 23 blocks the torsion spring 6.

[0044] Of course, the spring plunger 7 in the second embodiment can also be used as the reset structure.

[0045] The damping structure is elastic feet 91 provided on the front and rear sides of the top of the dial 9. The elastic feet 91 elastically press against the inner wall of the guiding platform 92 of the dial 9, thereby forming damping for the left and right sliding of the dial 9.

[0046] Of course, the rubber elastomer 4 in the second embodiment can also be used as the damping structure.

[0047] The working principle and process of this swing-type delay valve core are as follows:

[0048] As Figure 3 、 4As shown in FIGS. 10, when the valve handle 8 does not swing back and forth and does not drive the dial 9 and the movable valve plate 5 to slide radially (i.e., the valve handle 8 is in the vertical position and does not swing about the pivot axis 81), the valve handle 8 and the movable valve plate 5 are in the initial position, that is, the flow hole 52 is misaligned with both the cold water channel 3a and the hot water channel 3b, the mixing chamber 51 is blocked from the cold water channel 3a and the hot water channel 3b, and no water flows out of the water outlet 1c, that is, the water flow rate is zero.

[0049] During the process of opening the water circuit, the valve handle 8 is swung (i.e., the valve handle 8 swings about the pivot axis 81 against the torsion of the torsion spring 6), driving the movable valve plate 5 to slide to the open state. The cold water channel 3a and / or the hot water channel 3b are connected to the mixing chamber 51 through the flow hole 52. At this time, if the valve handle 8 rotates about its own axis, driving the rotation of the movable valve plate 5 can change the overlapping area between the flow hole 52 and the cold water channel 7a and the hot water channel 7b, adjusting the mixing ratio of cold water and hot water to achieve the adjustment of the water flow temperature. Since the torsion spring 6 stores energy when the valve handle 8 swings to the open position, the energy-stored torsion spring 6 causes the valve handle 8 to have a tendency to swing back towards the initial position when it swings to the open position. During the process of the valve handle 8 swinging back, it drives the dial 9 to slide. The elastic feet 91 on the front and rear sides of the top of the dial 9 press against the inner wall of the guiding platform 92 of the dial 9, thereby forming a damping force on the sliding of the dial 9, making the process of the valve handle 8 swinging from the open position to the initial position a slow swing. Finally, until the valve handle 8 drives the dial 9 and the movable valve plate 5 to move to the initial position, closing the water circuit.

[0050] As shown in the figure, this is the second embodiment of the present invention.

[0051] The difference between this embodiment and the first embodiment lies in the different reset structure and damping structure.

[0052] The reset structure in this embodiment is a spring plunger 7. The spring plunger 7 includes a plug 71, a spring 72, and a piston 73. A stepped through hole 8b is provided horizontally through the valve handle 8. The stepped through hole 8b is located above the pivot. The plug 71 is threadedly connected to the end of the stepped through hole 8b. The piston 73 is disposed in the stepped through hole 8b and can move horizontally. The spring 72 is disposed in the stepped through hole 8b and acts on the piston 73, causing the outer end of the piston 73 to extend out of the valve handle 8 and abut against the inner hole wall of the rotor 2. A gasket 9 is also inserted on the inner hole wall of the rotor 2. The outer end of the piston 73 extends out of the valve handle 8 and abuts against the gasket 9.

[0053] The damping structure in this embodiment is a rubber elastomer 4 fixed in the rotor 2. The elastic rubber body 4 is in frictional contact with the front and rear side walls of the guiding platform 92 of the dial 9, thereby forming a damping force on the left and right sliding of the dial 3.

[0054] During the opening process of the water passage, the swing valve handle 8 (i.e., the valve handle 8 swings about the pivot axis 81 against the restoring force of the spring plunger 7), driving the movable valve plate 5 to slide to the open state. The cold water passage 3a and / or the hot water passage 3b are connected to the mixing chamber 51 through the flow holes 52. At this time, if the valve handle 8 rotates about its own axis, driving the rotation of the movable valve plate 5 can change the overlapping area of the flow holes 52 with the cold water passage 7a and the hot water passage 7b, adjust the mixing ratio of cold water and hot water, and achieve the adjustment of the water flow temperature.

[0055] Since the piston 73 in the spring plunger 7 is compressed by three times when the valve handle 8 swings to the open position to store energy, the energy-storing piston 73 makes the valve handle 8 tend to swing in the direction of the initial position when it swings to the open position. During the process of the valve handle 8 swinging back, it drives the dial 9 to slide. The rubber elastomer 4 fixed in the rotor 2 frictionally contacts the front and rear side walls of the guide platform 92 of the dial 9, forming a damping force on the sliding of the dial 3, so that the process of the valve handle 8 swinging from the open position to the initial position is a slow swing. Finally, until the valve handle 8 drives the dial 9 and the movable valve plate 5 to move to the initial position, the water passage is closed.

[0056] It should be noted that in the description of this embodiment, the orientation or positional relationship indicated by terms such as "front, back", "left, right", "up, down", "clockwise", "counterclockwise", etc. are all based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A swinging time-delay valve core, comprising a valve housing (1) provided with a water inlet and a water outlet (1c); a valve handle (8) pivotally passing through the valve housing (1) and capable of swinging left and right; a fixed valve plate (3) fixed to the bottom inside the valve housing (1); a movable valve plate (5) disposed on top of the fixed valve plate (3), the movable valve plate (5) being driven by the swing of the valve handle (8) to slide left and right, the sliding of the movable valve plate (5) being used to change the water flow rate. In the initial state, the water flow rate at the water outlet (1c) is zero, and in the open state, water flows out of the water outlet (1c); It is characterized in that: a reset structure is provided on the valve handle (8), the reset structure causing the valve handle (8) to tend to swing towards the initial position when swung to the open position, and a damping structure is further provided on the valve handle (8), the damping structure causing the valve handle (8) to swing slowly during the swing from the open position to the initial position.

2. The swing-type delay valve core according to claim 1, wherein: The valve handle (8) is directly rotatably connected to the valve housing (1) through a pivot, and the reset structure is a torsion spring (6) or a spring plunger (7); the torsion spring (6) is sleeved on the pivot (8a) of the valve handle (8), one end of the torsion spring (6) abuts against the valve housing (1), and the other end of the torsion spring (6) abuts against the side wall of the valve handle (8); the spring plunger (7) includes a plug (71), a spring (72) and a piston (73), a stepped through-hole (8b) penetrating horizontally is provided on the valve handle (8), the stepped through-hole (8b) is located above the pivot (8a), the plug (71) is threadedly connected to the end of the stepped through-hole (8b), the piston (73) is disposed in the stepped through-hole (8b) and can move horizontally, and the spring (72) is disposed in the stepped through-hole (8b) and acts on the piston (73) to cause the outer end of the piston (73) to protrude from the valve handle (8) and abut against the inner wall of the valve housing (1).

3. The swing-type delay valve core according to claim 1, characterized in that: A dial (9) capable of sliding left and right is constrained inside the valve housing (1), the movable valve plate (5) is installed below the dial and can move with the dial (9), and the lower end of the valve handle (8) is inserted into the dial (9) so that the swing of the valve handle (8) can drive the sliding of the dial (9); the damping structure is elastic feet (91) provided on the front and rear sides of the top of the dial (9), the elastic feet (91) elastically pressing against the inner wall of the valve housing (1) to form damping for the left and right sliding of the dial (9); or the damping structure is a rubber elastic body (4) fixed inside the valve housing (1), the elastic rubber body (4) being in frictional contact with the front and rear side walls of the dial (9) to form damping for the left and right sliding of the dial (9).

4. The swing type delay valve core according to claim 1, wherein: A rotor (2) capable of rotating about its own axis is installed inside the valve housing (1). A dial (9) is provided at the bottom of the rotor (2). The dial (9) can rotate together with the rotor (2) and can slide relative to the rotor (2). The movable valve plate (5) is installed below the dial (9) and can rotate or slide along with the dial (9). The rotation of the movable valve plate (5) is used to adjust the mixing ratio of cold water and hot water. The valve handle (8) passes through and is hinged in the through hole of the rotor (2) through a pivot (8a). The lower end of the valve handle (8) is inserted into the dial (9) so that the swing of the valve handle (8) can drive the sliding of the dial (9).

5. The swinging time-delay valve core according to claim 4, characterized in that: The reset structure is a torsion spring (6) or a spring plunger (7). The torsion spring (6) is sleeved on the pivot (8a) of the valve handle (8). One end of the torsion spring (6) abuts against the inner wall of the rotor (2), and the other end of the torsion spring (6) abuts against the side wall of the valve handle (8). The spring plunger (7) includes a plug (71), a spring (72) and a piston (73). A stepped through hole (8b) penetrating horizontally is provided on the valve handle (8). The stepped through hole (8b) is located above the pivot. The plug (71) is threadedly connected to the end of the stepped through hole (8b). The piston (73) is arranged in the stepped through hole (8b) and can move horizontally. The spring (72) is arranged in the stepped through hole (8b) and acts on the piston (73) so that the outer end of the piston (73) extends out of the valve handle (8) and abuts against the inner hole wall of the rotor (2).

6. The swing-type delay valve core according to claim 5, characterized in that: A gasket (10) is also inserted on the inner hole wall of the rotor (2). The outer end of the piston (73) extends out of the valve handle (8) and abuts against the gasket (10).

7. The swing-type delay valve core according to claim 4, characterized in that: The torsion spring (6) has a transverse arm (61). The left and right ends of the transverse arm (61) have downwardly extending mounting arms (62). A collar portion (63) for sleeving on the pivot is formed on the mounting arms (62). The tail end of the mounting arm (62) is bent outward to form a pressing end (64). The transverse arm (61) abuts against the side wall of the valve handle (8). The pressing end (64) is hooked at the bottom of the inner boss (21) on the inner hole wall of the rotor (2). A stop wall (23) for blocking the torsion spring (6) is also provided on the rotor (2). When the valve handle (8) is in the initial position, the stop wall (23) blocks the torsion spring (6).

8. The swing-type delay valve core according to claim 4, characterized in that: Two circumferentially spaced inner bosses (10) are provided at the inner top of the valve housing (1). The side wall of the rotor (2) has a laterally protruding limit block (22). The limit block (22) is located between the two inner bosses (10) to limit the rotation angle of the rotor (2). The top surface of the dial (9) is provided with an upwardly protruding guide platform (92). The bottom of the rotor (2) is provided with a guide groove (21) matching the guide platform (92). The guide platform (92) is placed in the guide groove (21) and can slide.

9. The swing type delay valve core according to claim 4, characterized in that: The damping structure is elastic feet (91) provided on the front and rear sides of the top of the dial (9), and the elastic feet (31) elastically press against the inner wall of the rotor (2), thereby forming damping for the left and right sliding of the dial (9); or the damping structure is a rubber elastic body (4) fixed in the rotor (2), and the elastic rubber body (4) is in frictional contact with the front and rear side walls of the dial (9), thereby forming damping for the left and right sliding of the dial (9).

10. The swing-type delay valve core according to claim 4, characterized in that: There are two water inlets, namely a cold water inlet (1a) and a hot water inlet (1b), and there is only one water outlet (1c); a cold water channel (3a) communicating with the cold water inlet (1a), a hot water channel (3b) communicating with the hot water inlet (1b), and a water outlet channel (3c) communicating with the water outlet (1c) are provided on the fixed valve plate (3); a mixing chamber (51) and a flow-through hole (52) communicating with the mixing chamber (51) are provided in the movable valve plate (5), and the mixing chamber (51) is always communicated with the water outlet channel (3c); when the movable valve plate (5) slides to the initial state, the movable valve plate (5) blocks the cold water channel (3a) and the hot water channel (3b); when the movable valve plate (5) slides to the open state, the cold water channel (3a) and / or the hot water channel (3b) are communicated with the mixing chamber (51) through the flow-through hole (52), and the rotation of the movable valve plate (5) can change the overlapping area between the flow-through hole (52) and the cold water channel (7a) and the hot water channel (7b).

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