A mechanical switching device

Abstract

The present invention proposes a mechanical switching device, including a valve body, a cavity is provided in the valve body, and 5 waterway ports are provided on the cavity, including A1 waterway port, A2 waterway port, B1 waterway port, B2 waterway port, and C1 waterway port. The 5 waterway ports are connected through the cavity. A sealing device is provided in the cavity. The sealing device is movably installed in the cavity and can move in the cavity. When the sealing device moves away from the B2 waterway port, the B1 waterway port is connected to the B2 waterway port, and the A1 waterway port is connected to the C1 waterway port. When the sealing device moves away from the A2 waterway port, the A1 waterway port is connected to the A2 waterway port, and the B1 waterway port is connected to the C1 waterway port. The mechanical switching device has a simple structure and low cost. The switching is realized by the waterway water flow, and no additional circuit design is required. The control is simple and convenient, and it can solve the current situation that one waterway switch corresponds to one control solenoid valve.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a mechanical switching device with multiple channels capable of alternately opening, closing, and switching on and off. Background Art

[0002] In the field of traditional waterway switching, it involves waterways with multiple channels that are alternately opened and closed. Generally, the most commonly used method is to have several control solenoid valves for several waterway switching. Generally, each solenoid control valve basically includes a guide sleeve of the valve body with an electromagnetic coil arranged outside, an iron core and a piston arranged inside the guide sleeve, a piston cap connected to the front end of the piston, and the piston cap corresponds to the valve seat. A compression spring is arranged between the iron core and the piston. When the electromagnetic coil is not energized, under the action of the compression spring, the piston cap closes the valve seat and blocks the flow path between the inlet and the outlet; when the electromagnetic coil is energized, the piston is attracted to the iron core by the iron core, the piston cap leaves the valve seat, and the flow path between the inlet and the outlet is opened. If one control solenoid valve is used to control the opening and closing of one waterway, when there are more waterways to be switched, the result will be high cost, complex structure and large space occupation. When the opening and closing of these valves are switched, that is, one valve is opened and the other valve is closed, it will also increase the complexity of mechanical action and circuit design, and the failure rate will also increase. A mechanical switching device is now proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose a mechanical switching device that can reduce the number of control solenoid valves corresponding to the switching water circuits, thereby solving the current situation in which one water circuit switch corresponds to one control solenoid valve.

[0004] To achieve the above-mentioned purpose, the present invention proposes a mechanical switching device, including a valve body, a cavity is provided in the valve body, and five water channel ports are provided on the cavity, including an A1 water channel port, an A2 water channel port, a B1 water channel port, a B2 water channel port, and a C1 water channel port. The five water channel ports are connected through the cavity. A sealing device is provided in the cavity. The sealing device is movably installed in the cavity and can move in the cavity. When the sealing device moves away from the B2 water channel port, the B1 water channel port and the B2 water channel port are connected, and the A1 water channel port and the C1 water channel port are connected. When the sealing device moves away from the A2 water channel port, the A1 water channel port and the A2 water channel port are connected, and the B1 water channel port and the C1 water channel port are connected.

[0005] Preferably, the A1 water channel opening, A2 water channel opening and part of the cavity form flow path A, the B1 water channel opening, B2 water channel opening and part of the cavity form flow path B, an A2 valve seat is arranged between flow path A and the C1 water channel opening, and a B2 valve seat is arranged between flow paths B and C1 water channel openings; an A1 valve seat is arranged between the two water channel openings inside flow path A, and a B1 valve seat is arranged between the two water channel openings inside flow path B, and the sealing device can move between several valve seats; the A1 valve seat and the B1 valve seat are not necessary, and the A1 valve seat and the B1 valve seat can be cancelled when the water channel does not need to be completely sealed.

[0006] Preferably, the sealing device comprises a valve core A and a valve core B, wherein the valve core A is arranged between an A1 valve seat and an A2 valve seat, and the valve core B is arranged between a B1 valve seat and a B2 valve seat. The valve core A and the valve core B are respectively provided with rubber seals, and the rubber seals comprise an A1 seal and an A2 seal installed on the valve core A and a B1 seal and a B2 seal installed on the valve core B. The valve core A and the valve core B are placed up and down and move simultaneously; the tails of the valve core A and the valve core B are fixedly connected or connected by a spring and move simultaneously.

[0007] Preferably, the sealing device comprises a float A and a float B, wherein the float A is arranged between the A1 valve seat and the A2 valve seat, and the float B is arranged between the B1 valve seat and the B2 valve seat, and the float A and the float B are placed up and down, and the float A and the float B are interlocked by a spring or by mutual collision.

[0008] Preferably, the sealing device comprises a valve core A and a valve core B, wherein the valve core A and the valve core B are placed vertically and can be interlocked according to the sequence of the valve core movements, and the outer walls of the contact ends of the valve core A and the valve core B are respectively provided with driving conical surfaces.

[0009] Preferably, the sealing device includes a valve core A, a valve core B and a lever, the valve core A and the valve core B are placed in parallel, the lever is movably installed in a cavity above the valve core A and the valve core B, the valve core A and the valve core B are interlocked through translation or swinging of the lever, the valve core A and the valve core B are provided with driving conical surfaces at the ends close to the lever, and the end surfaces of the two ends of the lever close to the valve core A and the valve core B are respectively provided with driving inclined surfaces.

[0010] Preferably, the sealing device is an inner and outer sleeve, which are movably installed in the cavity, and selectively seal the inner and outer holes of the side wall of the C1 water channel opening through the up and down movement of the inner and outer sleeves. The inner and outer sleeves are composed of an inner sleeve and an outer sleeve, and the outer sleeve is symmetrically provided with through grooves.

[0011] Preferably, the sealing device is approximately an impeller structure, the lower part of the impeller structure is provided with three impellers for switching three water routes, and the upper part of the impeller structure is an impeller and a torsion spring, and the lower three water routes are switched by the water flow power of the upper part and the torsion spring force.

[0012] Beneficial effects of the invention: The invention can solve the current situation that one water circuit switch corresponds to one control solenoid valve, and realizes the switching of other water circuits through the water flow energy in the water circuit. This method can reduce the corresponding control solenoid valves on the switching water circuit; the mechanical switching device has a simple structure and low cost. In addition, the switching is realized by the water flow in the water circuit, and no additional circuit design is required, and the control is simple and convenient.

[0013] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the AA cross-sectional structure of the first embodiment of the present invention;

[0015] Figure 2 is a three-dimensional structural diagram of a first embodiment of the present invention;

[0016] Figure 3 is a front schematic view of a first embodiment of the present invention;

[0017] Figure 4 is a left side schematic view of a first embodiment of the present invention;

[0018] Figure 5 is a schematic AA cross-sectional view of a second embodiment of the present invention;

[0019] Figure 6 is a schematic AA cross-sectional view of a third embodiment of the present invention;

[0020] Figure 7 is a schematic cross-sectional view of a fourth embodiment of the present invention;

[0021] Figure 8 is a schematic cross-sectional view of a fifth embodiment of the present invention;

[0022] Fig. 9 is a cross-sectional schematic diagram of a sixth embodiment of the present invention;

[0023] Fig.10 is a schematic cross-sectional view of a seventh embodiment of the present invention;

[0024] Fig.11 is a cross-sectional schematic diagram of a water channel A in a water inflow state of a seventh embodiment of the present invention;

[0025] Fig.12is a schematic structural diagram of an inner and outer jacket according to a seventh embodiment of the present invention;

[0026] Fig.13 is a perspective schematic diagram of an eighth embodiment of the present invention;

[0027] Fig.14 is a cross-sectional schematic diagram of an eighth embodiment of the present invention;

[0028] Fig.15 is a schematic cross-sectional view taken along line BB of an eighth embodiment of the present invention;

[0029] Fig.16 is a CC cross-sectional schematic diagram of an eighth embodiment of the present invention;

[0030] Fig.17 DD is a schematic cross-sectional view of the eighth embodiment of the present invention. DETAILED DESCRIPTION

[0031] Example 1

[0032] See also Figures 1 to 4 A mechanical switching device of the present invention comprises a valve body 1, wherein a cavity is provided in the valve body 1, and five waterway openings are provided on the cavity, including an A1 waterway opening 2, an A2 waterway opening 3, a B1 waterway opening 4, a B2 waterway opening 5, and a C1 waterway opening 6. The five waterway openings are connected through the cavity, and a sealing device 7 is provided in the cavity. The sealing device 7 is movably installed in the cavity and can move in the cavity. When the sealing device 7 moves away from the B2 waterway opening 5, the B1 waterway opening 4 and the B2 waterway opening 5 are connected, and the A1 waterway opening 2 and the C1 waterway opening 6 are connected. When the sealing device 7 moves away from the A2 waterway opening 3, the A1 waterway opening 2 and the A2 waterway opening 3 are connected, and the B1 waterway opening 4 and the C1 waterway opening 6 are connected. The A1 water channel opening 2, the A2 water channel opening 3 and part of the cavity form a flow channel A, the B1 water channel opening 4, the B2 water channel opening 5 and part of the cavity form a flow channel B, an A2 valve seat 11 is provided between the flow channel A and the C1 water channel opening 6, and a B2 valve seat 12 is provided between the flow channel B and the C1 water channel opening 6; an A1 valve seat 13 is provided between the two water channel openings in the flow channel A, and a B1 valve seat 14 is provided between the two water channel openings in the flow channel B, and the sealing device 7 can move between several valve seats;

[0033] Furthermore, the sealing device 7 includes a valve core A711 and a valve core B712. The valve core A711 is arranged between the A1 valve seat 13 and the A2 valve seat 11, and the valve core B712 is arranged between the B1 valve seat 14 and the B2 valve seat 12. The valve core A711 and the valve core B712 are respectively provided with rubber seals, and the rubber seals include an A1 seal 15 and an A2 seal 16 installed on the valve core A711 and a B1 seal 17 and a B2 seal 18 installed on the valve core B712. The valve core A711 and the valve core B712 are placed up and down and move at the same time; the tails of the valve cores A711 and B712 are connected by a spring 70 and move at the same time.

[0034] Furthermore, the A1 valve seat 13 and the B1 valve seat 14 are not necessary, and can be eliminated when the water path does not need to be completely sealed.

[0035] Example 2

[0036] See also Figure 5 , which is different from Example 1 in that the tails of the valve core A711 and the valve core B712 are fixedly connected.

[0037] Example 3

[0038] See also Figure 6 , which is different from Example 1 in that: the sealing device 7 includes a float A721 and a float B722, the float A721 is arranged between the A1 valve seat 13 and the A2 valve seat 11, the float B722 is arranged between the B1 valve seat 14 and the B2 valve seat 12, the float A721 and the float B722 are placed up and down, and the float A721 and the float B722 are interlocked by a spring 70 or by mutual collision.

[0039] Example 4

[0040] See also Figure 7 , which differs from Example 1 in that: the sealing device 7 includes a valve core A711 and a valve core B712, the valve core A711 and the valve core B712 are placed vertically, and can be interlocked through the sequence of the valve core movement, and the outer walls of the contact ends of the valve core A711 and the valve core B712 are respectively provided with driving conical surfaces 700.

[0041] Example 5

[0042] See also Figure 8, the difference from Example 1 is that: the sealing device 7 includes a valve core A711, a valve core B712 and a lever 713, the valve core A711 and the valve core B712 are placed in parallel, the lever 713 is movably installed in the cavity above the valve core A711 and the valve core B712, the valve core A711 and the valve core B712 are interlocked by the translation of the lever 713, the ends of the valve core A711 and the valve core B712 close to the lever 713 are provided with driving conical surfaces 700, and the end surfaces of the two ends of the lever 713 close to the valve core A711 and the valve core B712 are respectively provided with driving inclined surfaces 7130.

[0043] Example 6

[0044] See also Fig. 9 , which is different from Example 5 in that: the lever 713 is rotatably installed in the cavity above the valve core A711 and the valve core B712, and the valve core A711 and the valve core B712 are interlocked by the swing of the lever 713.

[0045] Example 7

[0046] See also Figures 10 to 12 , which is different from the first embodiment in that: the sealing device 7 is an inner and outer sleeve 73, which is movably installed in the cavity, and selectively seals the inner and outer holes 730 of the side wall of the C1 waterway opening 6 through the up and down movement of the inner and outer sleeve 73. The inner and outer sleeve 73 is composed of an inner sleeve 731 and an outer sleeve 732, and the outer sleeve 732 is symmetrically provided with through grooves 733. Fig.11 As shown, after water enters water channel A, the inner and outer sleeves 73 are pushed to the top, and the inner and outer sleeves 73 seal the B2 water channel opening 5.

[0047] Example 8

[0048] See also Figures 13 to 17 The difference from Example 1 is that the sealing device 7 is approximately an impeller structure 74, and the lower part of the impeller structure 74 is provided with three impellers 741 for switching three water channels. The upper part of the impeller structure 74 is an impeller 742 and a torsion spring 743, and the lower three water channels are switched by the water flow power of the upper part and the torsion spring force.

[0049] Working process of the present invention:

[0050] The working principle of the mechanical switching device of the present invention is shown in Figure 1When neither the A1 waterway port 2 nor the B1 waterway port 4 flows in water, the valve core A711 is at the A1 valve seat 13, the A2 seal 16 of the valve core A711 can seal the A1 valve seat 13, the valve core B712 is on the B2 valve seat 12, the B2 seal 18 seals the B2 valve seat 12, and the B1 waterway port 4 and the B2 waterway port 5 are connected; when the A1 waterway port 2 flows in water, the water flow pushes the valve core A711 onto the A2 valve seat 11, the A1 seal 15 seals the A2 valve seat 11, and the spring 70 pushes the valve core B712 onto the B1 valve seat 14, the B1 seal 17 seals the B1 valve seat 14, and the B1 waterway port 4 and the C1 waterway port 6 are connected. The above control of the one-in and two-out switching of the waterway B is achieved by opening and closing the waterway A.

[0051] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A mechanical switching device, comprising a valve body (1), characterized in that: The valve body (1) is provided with a cavity, and the cavity is provided with five waterway openings, including an A1 waterway opening (2), an A2 waterway opening (3), a B1 waterway opening (4), a B2 waterway opening (5), and a C1 waterway opening (6). The five waterway openings are connected through the cavity. A sealing device (7) is provided in the cavity. The sealing device (7) is movably installed in the cavity and can move in the cavity. When the sealing device (7) moves away from the B2 waterway opening (5), the B1 waterway opening (4) and the B2 waterway opening (5) are connected, and the A1 waterway opening (2) and the C1 waterway opening (6) are connected. When the sealing device (7) moves away from the A2 waterway opening (3), the A1 waterway opening (2) and the A2 waterway opening (3) are connected, and the B1 waterway opening (4) and the C1 waterway opening (6) are connected. The switching is achieved by water flow in the waterway; The sealing device (7) includes the following three configuration modes: In a first configuration, the sealing device (7) comprises a valve core A (711) and a valve core B (712), wherein the valve core A (711) and the valve core B (712) are placed vertically and can be interlocked according to the sequence of movement of the valve cores, and the outer walls of the contact ends of the valve core A (711) and the valve core B (712) are respectively provided with driving conical surfaces (700); The second arrangement is that the sealing device (7) comprises a valve core A (711), a valve core B (712) and a lever (713), wherein the valve core A (711) and the valve core B (712) are placed in parallel, and the lever (713) is movably installed in a cavity above the valve core A (711) and the valve core B (712), and the valve core A (711) and the valve core B (712) are interlocked by translation or swinging of the lever (713), and the ends of the valve core A (711) and the valve core B (712) close to the lever (713) are provided with a driving conical surface (700), and the end surfaces of both ends of the lever (713) close to the valve core A (711) and the valve core B (712) are respectively provided with a driving inclined surface (7130); A third configuration is that the sealing device (7) is approximately an impeller structure (74), the lower portion of the impeller structure (74) is provided with three impellers (741) capable of switching three water paths, and the upper portion of the impeller structure (74) is provided with an impeller (742) and a torsion spring (743), and the lower three water paths are switched by the water flow power of the upper portion and the torsion spring force.

2. A mechanical switching device according to claim 1, characterized in that: The A1 water channel opening (2), the A2 water channel opening (3) and part of the cavity form a flow channel A, the B1 water channel opening (4), the B2 water channel opening (5) and part of the cavity form a flow channel B, an A2 valve seat (11) is provided between the flow channel A and the C1 water channel opening (6), a B2 valve seat (12) is provided between the flow channels B and the C1 water channel opening (6), an A1 valve seat (13) is provided between the two water channel openings in the flow channel A, and a B1 valve seat (14) is provided between the two water channel openings in the flow channel B, and the sealing device (7) can move between the plurality of valve seats.

3. A mechanical switching device according to claim 2, characterized in that: The A1 valve seat (13) and the B1 valve seat (14) are not essential, and can be removed when the water path does not need to be completely sealed.

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