Change-over valve arranged on heating loop

Abstract

A change-over valve arranged on a heating loop comprises a first valve body, a second valve body, a valve element and a driving part, the valve element comprises a first half shaft, a first circular end plate, a first fan-shaped valve element, a middle circular plate, a second valve element, a second circular end plate and a second half shaft, and the opening end of the first valve body and the opening end of the second valve body are connected and sealed. The first axial liquid guide groove is in butt joint with the second axial liquid guide groove; the first half shaft is in running fit with the first shaft hole, the first circular end plate is attached to and in running fit with the end plate of the first valve element cavity, the second half shaft is in running fit with the second shaft hole, the second circular end plate is attached to and in running fit with the end plate of the second valve element cavity, and the middle circular plate is in running fit with the opening end of the first valve element cavity and the opening end of the second valve element cavity. Driving pieces are arranged at the end parts of the first half shaft and the second half shaft; the first fan-shaped valve element and the second fan-shaped valve element are matched with the first valve element cavity and the second valve element cavity correspondingly, and water path conversion is completed. Installation is convenient in use, and waterway conversion is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of heat pump systems, especially waterway conversion device of heat pump system end. BACKGROUND

[0002] The prior art, Chinese patent 200320124026.4, a water source heat pump air conditioning unit with waterway conversion device, is composed of an evaporator, an expansion valve, a condenser and a compressor to form a refrigeration / heat system. The inlet and outlet of the condenser are connected with two-way conversion valves 12, 15 and 7, 8 respectively through three-way pipes. The inlet and outlet of the evaporator are connected with two-way conversion valves 13, 14 and 6, 9 respectively through three-way pipes. The conversion valves can be manual valves or electric valves. The utility model integrates the refrigeration / heat system and the waterway conversion system, which can overcome the shortcomings of the separation of the refrigeration / heat system and the waterway conversion system in the prior art. However, the structure is complex. SUMMARY

[0003] The utility model aims to provide a conversion valve arranged on a heating circuit, which has the characteristics of simple structure and convenient waterway conversion operation.

[0004] The utility model is implemented as follows: a conversion valve arranged on a heating circuit, which is characterized by comprising a first valve body, a second valve body, a valve core and a driving member,

[0005] The first valve body comprises a first valve core cavity, a first axial liquid guide groove, a water outlet pipe and a first connector. The closed end of the first valve core cavity is provided with a first shaft hole;

[0006] The second valve body comprises a second valve core cavity, a second axial liquid guide groove, a water return pipe and a second connector. The closed end of the second valve core cavity is provided with a second shaft hole;

[0007] The valve core comprises a first half shaft, a first circular end plate, a first fan-shaped valve core, an intermediate circular plate, a second valve core, a second circular end plate and a second half shaft,

[0008] The open end of the first valve body is connected and sealed with the open end of the second valve body. The first axial liquid guide groove and the second axial liquid guide groove are butt-jointed. The first half shaft is rotationally matched with the first shaft hole. The first circular end plate is attached to and rotationally matched with the end plate of the first valve core cavity. The second half shaft is rotationally matched with the second shaft hole. The second circular end plate is attached to and rotationally matched with the end plate of the second valve core cavity. The intermediate circular plate is rotationally matched with the open end of the first valve core cavity and the second valve core cavity respectively. The end portions of the first half shaft and the second half shaft are provided with the driving member. The first fan-shaped valve core and the second fan-shaped valve core are matched with the first axial liquid guide groove and the second axial liquid guide groove respectively.

[0009] The first valve core cavity and the second valve core cavity are respectively provided with a first annular groove and a second annular groove at the opening end.

[0010] Further comprising a sealing ring, which is embedded with the first annular groove and the second annular groove.

[0011] The sealing ring is square in cross section.

[0012] The first valve core cavity and the second valve core cavity are respectively provided with a first annular groove and a second annular groove at the opening end.

[0013] Further comprising a sealing ring, which is embedded with the first annular groove and the second annular groove.

[0014] The first valve core cavity and the second valve core cavity are respectively provided with a first annular groove and a second annular groove at the opening end.

[0015] The first valve core cavity and the second valve core cavity are respectively provided with a first annular groove and a second annular groove at the opening end.

[0016] The intermediate circular disc is rotationally connected with the first circular arc-shaped baffle and the second circular arc-shaped baffle at two ends thereof; the circumferential two ends of the first sector-shaped valve core are stop-connected with the two ends of the first circular arc-shaped baffle, and the circumferential two ends of the second sector-shaped valve core are stop-connected with the two ends of the second circular arc-shaped baffle.

[0017] The driving member is circular and is provided with anti-skid teeth on the outer circumferential surface.

[0018] The utility model discloses a conversion valve arranged on a heating circuit, which has the advantages that the conversion valve is convenient to install and use, and water conversion is convenient. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the front view of the utility model.

[0020] Figure 2 It is the sectional view of the utility model.

[0021] Figure 3 It is the A-A view of Figure 1 .

[0022] Figure 4 It is the B-B view of Figure 1 .

[0023] Figure 5 It is the perspective view of the utility model.

[0024] Figure 6 is one of the stereoscopic exploded view of the utility model.

[0025] Figure 7 is the second stereoscopic exploded view of the utility model. DETAILED DESCRIPTION

[0026] The embodiments of the utility model will be described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as a limitation of the utility model.

[0027] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0028] As shown in Figure 1 , Figure 2 A conversion valve arranged on a heating circuit, comprising a first valve body 1, a second valve body 2, a valve core 3 and a driving member 4,

[0029] The first valve body 1 comprises a first valve core cavity 11, a first axial liquid guide groove 12, a water outlet pipe 13 and a first connector 14, the closed end of the first valve core cavity 11 is provided with a first shaft hole 111, and the first axial liquid guide groove 12 is arranged on the inner wall of the first valve core cavity 11; the first axial liquid guide groove 12 is closed at one end of the closed end of the first valve core cavity 11, and the first axial liquid guide groove 12 is open at one end of the open end of the first valve core cavity 11; the axis of the water outlet pipe 13 and the axis of the first connector 14 are perpendicular;

[0030] The second valve body 2 comprises a second valve core cavity 21, a second axial liquid guide groove 22, a return water pipe 23 and a second connector 24, the closed end of the second valve core cavity 21 is provided with a second shaft hole 211, and the second axial liquid guide groove 22 is arranged on the inner wall of the second valve core cavity 21;

[0031] The valve core 3 comprises a first half shaft 31, a first circular end plate 32, a first fan-shaped valve core 33, an intermediate circular plate 34, a second fan-shaped valve core 35, a second circular end plate 36 and a second half shaft 37,

[0032] The open end of the first valve body 1 and the open end of the second valve body 2 are connected and sealed, the first axial liquid guide groove 12 and the second axial liquid guide groove 22 are butted, the first half shaft 31 is rotationally matched with the first shaft hole 111, the first circular end plate 32 is sealingly and rotationally matched with the end plate and the inner surface of the first valve core cavity 11, the second half shaft 37 is rotationally matched with the second shaft hole 211, the second circular end plate 36 is sealingly and rotationally matched with the end plate and the inner surface of the second valve core cavity 21, and the intermediate circular plate is rotationally matched with the open end of the first valve core cavity 11 and the open end of the second valve core cavity 21 respectively; the end portions of the first half shaft 31 and the second half shaft 37 are provided with the driving member 4; the first sector valve core 33 and the second sector valve core 35 are matched with the first valve core cavity 11 and the second valve core cavity 21 respectively, so as to complete waterway conversion.

[0033] As a further improvement of the utility model: the open end of the first valve core cavity 11 and the open end of the second valve core cavity 21 are respectively provided with a first annular groove and a second annular groove;

[0034] Further comprising a sealing ring 5, the sealing ring 5 is embedded with the first annular groove and the second annular groove.

[0035] The cross section of the sealing ring 5 is square.

[0036] As a further improvement of the utility model: the first circular end plate 32 and the second circular end plate 36 are respectively provided with a first sealing gasket cavity and a second sealing gasket cavity,

[0037] Further comprising an annular sealing gasket 6,

[0038] The first sealing gasket cavity and the second sealing gasket cavity are respectively provided with an annular sealing gasket 6, the first half shaft 31 passes through the annular sealing gasket 6, the first half shaft and the annular sealing gasket 6 are rotationally matched and sealed, and the second half shaft 37 passes through another annular sealing gasket 6, the second half shaft and the other annular sealing gasket 6 are rotationally matched and sealed.

[0039] As a further improvement of the utility model: the first valve core cavity 11 and the second valve core cavity 21 are respectively provided with a first circular arc baffle 112 and a second circular arc baffle 212;

[0040] The axial two ends of the intermediate circular disc 34 are respectively rotationally matched with the first circular arc baffle 112 and the second circular arc baffle 212. The circumferential two ends of the first sector valve core 33 are respectively matched and stopped with the two ends of the first circular arc baffle 112, and the circumferential two ends of the second sector valve core 35 are respectively matched and stopped with the two ends of the second circular arc baffle 212.

[0041] As a further improvement of the utility model: the driving member 4 is circular and is provided with anti-skid teeth on the outer circumferential surface.

[0042] The utility model uses, through first joint 14 and second joint 24 series connection on the pipeline of heat pump system, water outlet pipe 13 and the water inlet end communication of heat exchanger of heating terminal, backwater pipe 24 and the water outlet end communication of heat exchanger,

[0043] As Figure 2 、 Figure 3 、 Figure 5 Indicated, for first joint 14, first valve core chamber 11, water outlet pipe 13, heat exchanger, backwater pipe 23, second valve core chamber 21 and second joint 24 are communicated in proper order, and first fan-shaped valve core and second fan-shaped valve core are sealed first axial liquid guide groove 12 and second axial liquid guide groove 22 respectively, as Figure 3 Indicated.

[0044] As Figure 5 Indicated, drive drive piece 4 clockwise rotation, valve core 3 clockwise rotation, first fan-shaped valve core 32 and second fan-shaped valve core 35 cooperate with first circular arc baffle 112 and second circular arc baffle 212 and stop, and first fan-shaped valve core 32 seals the communication of water outlet pipe 13 and first valve core chamber 11, and second fan-shaped valve core 35 seals the communication of backwater pipe 23 and second valve core chamber 21, and first joint 14, first valve core chamber 11, first axial liquid guide groove 12, second axial liquid guide groove 22, second valve core chamber and second joint 24 are communicated in proper order. Waterway conversion, only need valve core 3 reciprocating rotation, and the operation is convenient.

[0045] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A changeover valve to be provided on a heating circuit, characterized by: The valve body comprises a first valve body, a second valve body, a valve core and a driving member, The first valve body comprises a first valve core cavity, a first axial liquid guide groove, a water outlet pipe and a first joint, and a first shaft hole is arranged at a closed end of the first valve core cavity; The second valve body comprises a second valve core cavity, a second axial liquid guide groove, a water return pipe and a second joint, and a second shaft hole is arranged at a closed end of the second valve core cavity; The valve core comprises a first half shaft, a first circular end plate, a first sector-shaped valve core, an intermediate circular plate, a second valve core, a second circular end plate and a second half shaft, The open end of the first valve body is connected and sealed with the open end of the second valve body, the first axial liquid guide groove is butted with the second axial liquid guide groove, the first half shaft is rotationally matched with the first shaft hole, the first circular end plate is attached to and rotationally matched with the end plate of the first valve core cavity, the second half shaft is rotationally matched with the second shaft hole, the second circular end plate is attached to and rotationally matched with the end plate of the second valve core cavity, the intermediate circular plate is rotationally matched with the open end of the first valve core cavity and the second valve core cavity respectively, the end portions of the first half shaft and the second half shaft are provided with the driving member, and the first sector-shaped valve core and the second sector-shaped valve core are matched with the first valve core cavity and the second valve core cavity respectively to complete water path conversion.

2. A changeover valve for installation in a heating circuit according to claim 1, characterised in that: The open end of the first valve core cavity and the open end of the second valve core cavity are respectively provided with a first annular groove and a second annular groove; Further comprising a sealing ring, which is embedded in the first annular groove and the second annular groove.

3. A changeover valve for installation in a heating circuit according to claim 2, characterised in that: The cross section of the sealing ring is square.

4. A changeover valve for installation in a heating circuit according to claim 1, characterised in that: The first circular end plate and the second circular end plate are respectively provided with a first sealing gasket cavity and a second sealing gasket cavity, Further comprising an annular sealing gasket, The first sealing gasket cavity and the second sealing gasket cavity are respectively provided with an annular sealing gasket, and the first half shaft and the second half shaft respectively pass through the annular sealing gasket and are sealed.

5. A changeover valve for installation in a heating circuit according to claim 1, characterised in that: The first valve core cavity and the second valve core cavity are respectively provided with a first circular arc-shaped baffle and a second circular arc-shaped baffle; The two ends of the intermediate circular plate are respectively rotationally matched with the first circular arc-shaped baffle and the second circular arc-shaped baffle, the circumferential two ends of the first sector-shaped valve core are respectively matched with the two ends of the first circular arc-shaped baffle to stop, and the circumferential two ends of the second sector-shaped valve core are respectively matched with the two ends of the second circular arc-shaped baffle to stop.

6. A changeover valve for installation in a heating circuit according to claim 1, 2, 3, 4 or 5, characterised in that: The driving member is circular and provided with anti-skid teeth on the outer circumferential surface.

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