Gland constant-flow six-way reversing valve

Abstract

The utility model provides a gland constant-flow six-way reversing valve, and relates to the technical field of reversing valves. The valve comprises a valve body, a shaft is arranged on the valve body, a valve element is arranged on the shaft, eccentric wheels are arranged on the shaft, the eccentric wheels comprise the upper eccentric wheel and the lower eccentric wheel, the upper eccentric wheel is arranged at the upper end of the shaft through a first flat key, and the lower eccentric wheel is arranged at the lower end of the shaft through a second flat key. The first valve element is arranged at the right end of the upper eccentric wheel through screws, and the second valve element is arranged at the right end of the lower eccentric wheel through screws. The six-way reversing valve is provided with two groups of eccentric wheels and valve cores which are correspondingly arranged, and the sealing performance of equipment in the operation process can be fully ensured under the action of a plurality of groups of sealing rings, so that the use effect of the six-way reversing valve is ensured to be completely met to the greatest extent, and the state is good.

Description

Technical Field

[0001] The utility model relates to the technical field of a reversing valve, in particular to a gland constant-flow six-way reversing valve. Background Technique

[0002] At present, the reversing valve shaft of the existing six-way reversing valve adopts an O-ring seal structure for single-point sealing. Due to casting reasons, machining cannot ensure precision, resulting in frequent oil leakage when the number of reversals is too large.

[0003] In the prior art, in the patent document with the publication number of CN220302832U, a constant-flow six-way reversing valve is proposed, which relates to the technical field of mechanical manufacturing. The utility model includes a housing, in which a valve ball and a valve shaft are arranged. The valve ball includes a first valve ball and a second valve ball. The first valve ball is arranged at the upper end of the housing, the second valve ball is arranged at the lower end of the housing, the valve shaft is arranged between the first valve ball and the second valve ball, and a sealing skeleton is used for sealing between the first valve ball and the top end of the housing. Both the first valve ball and the second valve ball adopt a T-shaped structure. The utility model adopts the skeleton seal form of a gear pump, and the effect is good. The skeleton seal can ensure the sealing performance during high-speed rotation, and it can fully meet the use effect and be in good condition when used on a six-way reversing valve. At the same time, the reversing valve ball is changed to a T-shaped valve ball structure to ensure the integrity of constant-flow switching.

[0004] Although the prior art ensures the sealing performance of the equipment to a certain extent, in the actual working process, there will still be problems of insufficient sealing performance. Content of the Utility Model

[0005] In view of the deficiencies existing in the above problems, the utility model provides a gland constant-flow six-way reversing valve, which is provided with two groups of corresponding eccentric wheels and valve cores, and the above structure can fully ensure the sealing performance of the equipment during operation under the action of multiple groups of sealing rings, so as to ensure that the six-way reversing valve fully meets the use effect and is in good condition to the greatest extent.

[0006] To solve the above problems, the utility model provides a gland constant-flow six-way reversing valve, which includes a valve body, a shaft is arranged on the valve body, a valve core is arranged on the shaft. Among them, an eccentric wheel is arranged on the shaft, the eccentric wheel includes an upper eccentric wheel and a lower eccentric wheel. The upper eccentric wheel is arranged at the upper end of the shaft through a first flat key, the lower eccentric wheel is arranged at the lower end of the shaft through a second flat key, the valve core includes a first valve core and a second valve core, the first valve core is arranged at the right end of the upper eccentric wheel through a screw, and the second valve core is arranged at the right end of the lower eccentric wheel through a screw.

[0007] Preferably, an end cover is provided on the valve body. The end cover includes an upper end cover and a lower end cover. The upper end cover is connected to the upper end of the valve body by a full-thread bolt, and the lower end cover is connected to the lower end of the valve body by a full-thread bolt.

[0008] Preferably, the upper end of the shaft is connected to the upper end cover by a shaft circlip for shaft, and the lower end of the shaft is connected to the lower connecting plate by a shaft circlip for shaft.

[0009] Preferably, the upper eccentric wheel is connected to the valve core by a first sealing ring, and the lower eccentric wheel is connected to the valve core by a second sealing ring.

[0010] Preferably, it further includes an adjusting block. The adjusting block includes a first adjusting block and a second adjusting block. The first adjusting block is arranged on the first valve core, and the second adjusting block is arranged on the second valve core.

[0011] Preferably, a connecting plate is arranged in the valve body. The connecting plate includes an upper connecting plate, a middle connecting plate and a lower connecting plate. The upper connecting plate is arranged between the upper end cover and the upper eccentric wheel, the middle connecting plate is arranged between the upper eccentric wheel and the lower eccentric wheel, and the lower connecting plate is arranged between the lower eccentric wheel and the lower end cover.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] In the present utility model, two sets of corresponding eccentric wheels and valve cores are provided, and the above structure can fully ensure the sealing performance of the equipment during operation under the action of multiple sealing rings, thereby maximizing the guarantee that the six-way reversing valve fully meets the use effect and is in good condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and examples, but the examples given are not intended to limit the present utility model.

[0016] As Figure 1 shown, the embodiment of the present utility model includes a valve body. A shaft is arranged on the valve body, a valve core is arranged on the shaft, an eccentric wheel is arranged on the shaft. The eccentric wheel includes an upper eccentric wheel and a lower eccentric wheel. The upper eccentric wheel is arranged at the upper end of the shaft by a first flat key, and the lower eccentric wheel is arranged at the lower end of the shaft by a second flat key. The valve core includes a first valve core and a second valve core. The first valve core is arranged at the right end of the upper eccentric wheel by a screw, and the second valve core is arranged at the right end of the lower eccentric wheel by a screw.

[0017] In this embodiment, an end cover is provided on the valve body. The end cover includes an upper end cover and a lower end cover. The upper end cover is connected to the upper end of the valve body by a full-thread bolt, and the lower end cover is connected to the lower end of the valve body by a full-thread bolt. Among them, the upper end of the shaft is connected to the upper end cover by a shaft snap ring, and the upper end of the shaft is also connected to the upper end cover by an O-ring. A positioning plate is provided on the upper end cover, and the upper end of the shaft penetrates through the positioning plate. The lower end of the shaft is connected to the lower connecting plate by a shaft snap ring. At the same time, an adjusting sleeve is provided in the middle of the shaft, and an O-ring is provided at the lower end of the adjusting sleeve.

[0018] In this embodiment, an adjusting block is provided on the valve body. The adjusting block includes a first adjusting block and a second adjusting block. The first adjusting block is provided on the first valve core, and the second adjusting block is provided on the second valve core. The upper eccentric wheel is connected to the first adjusting block and the first valve core through a first sealing ring, and the lower eccentric wheel is connected to the second adjusting block and the second valve core through a second sealing ring.

[0019] In this embodiment, a connecting plate is provided in the valve body. The connecting plate includes an upper connecting plate, a middle connecting plate, and a lower connecting plate. The upper connecting plate is provided between the upper end cover and the upper eccentric wheel, the middle connecting plate is provided between the upper eccentric wheel and the lower eccentric wheel, and the lower connecting plate is provided between the lower eccentric wheel and the lower end cover.

[0020] Those skilled in the art connect all the electrical components in this case to their adapted power supplies through wires, and should select a suitable controller according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of operations among the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be given.

[0021] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0022] In the description of this specification, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical solutions of this patent 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, and therefore should not be construed as limiting the present patent application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] In this specification, unless otherwise clearly stipulated and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0025] In this specification, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0026] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0027] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A gland constant flow six-way reversing valve, comprising a valve body, a shaft is arranged on the valve body, a valve core is arranged on the shaft, and the characteristics are: An eccentric wheel is arranged on the shaft, and the eccentric wheel includes an upper eccentric wheel and a lower eccentric wheel. The upper eccentric wheel is arranged at the upper end of the shaft by a first flat key, and the lower eccentric wheel is arranged at the lower end of the shaft by a second flat key. The valve core includes a first valve core and a second valve core. The first valve core is arranged at the right end of the upper eccentric wheel by a screw, and the second valve core is arranged at the right end of the lower eccentric wheel by a screw.

2. A gland constant flow six-way reversing valve as claimed in claim 1, characterized in that: The valve body is provided with an end cover, which includes an upper end cover and a lower end cover. The upper end cover is connected to the upper end of the valve body through a full-thread bolt, and the lower end cover is connected to the lower end of the valve body through a full-thread bolt.

3. A gland constant flow six-way reversing valve as claimed in claim 2, characterized in that: The upper end of the shaft is connected to the upper end cover through a shaft elastic retaining ring, and the lower end of the shaft is connected to the lower connecting plate through a shaft elastic retaining ring.

4. A gland constant flow six-way reversing valve as claimed in claim 3, characterized in that: The upper eccentric wheel is connected to the valve core through a first sealing ring, and the lower eccentric wheel is connected to the valve core through a second sealing ring.

5. A gland constant flow six-way reversing valve as claimed in claim 4, characterized in that: It also includes an adjustment block, which includes a first adjustment block and a second adjustment block. The first adjustment block is arranged on the first valve core, and the second adjustment block is arranged on the second valve core.

6. A gland constant flow six-way reversing valve as claimed in claim 5, characterized in that: A connecting plate is arranged in the valve body, and the connecting plate includes an upper connecting plate, a middle connecting plate and a lower connecting plate. The upper connecting plate is arranged between the upper end cover and the upper eccentric wheel, the middle connecting plate is arranged between the upper eccentric wheel and the lower eccentric wheel, and the lower connecting plate is arranged between the lower eccentric wheel and the lower end cover.

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