CN213332537U

CN213332537U - Rotary switching type four-way valve

Info

Publication number: CN213332537U
Application number: CN202022410272.2U
Authority: CN
Inventors: 谢艳; 李伟; 高明辉; 王俊; 卢利利; 赵帮文
Original assignee: Chongqing Yaxianhe Technology Development Co ltd; Chongqing Yuantong Electronic Technology Development Co ltd
Current assignee: Chongqing Yaxianhe Technology Development Co ltd; Chongqing Yuantong Electronic Technology Development Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-01
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a rotatory switching formula cross valve, including the power transmission subassembly, the power transmission subassembly includes the rotating member, and the stalk portion of rotating member passes through post hole cooperation structure and rotationally is connected with the mounting, and the one end that the mounting was worn out to the rotating member is used for linking to each other with drive structure, and the rotating member stretches into to be formed with rotatory limit structure between the part of mounting inner end and the mounting, and this rotatory limit structure is used for restricting the rotation angle of rotating member. By adopting the utility model, the power transmission component is respectively provided with the rotating part and the fixing part, and meanwhile, the rotating part is positioned in the rotating space formed by the fixing part, and the rotating part can only rotate at a certain angle in the rotating space through the arrangement of the rotating space, and the angle corresponds to two different communication states of the four-way valve, thereby realizing the switching of different communication modes in the four-way valve; the structure control mode of the power transmission assembly is simplified, the number of workpieces of the power transmission assembly is reduced, and the four-way valve is favorable for improving the installation efficiency.

Description

Rotary switching type four-way valve

Technical Field

The utility model relates to a cross valve, especially a rotatory switching formula cross valve.

Background

The four-way valve is a control valve with four valve ports and is provided with a fixed disc and a rotating disc, the fixed disc is provided with a first connecting groove and a second connecting groove, the rotating disc is provided with four ABCD vent holes, and the fixed disc is driven to rotate through a power transmission assembly, so that different vent holes in the rotating disc are communicated, namely before rotation, the vent hole A and the vent hole B are communicated through the first connecting groove, and the vent hole C and the vent hole D are communicated through the second connecting groove; after the rotating disc rotates, the vent hole A and the vent hole D are communicated through the second connecting groove, and the vent hole B and the vent hole C are communicated through the first connecting groove; and then the switching of two kinds of connected modes in the four-way valve is realized.

However, in the existing structure, the power transmission assembly is of a gear rack structure, and a corresponding limiting structure is not arranged, so that the four-way valve switching control is complex, the external gear rack needs to be provided with a mounting structure and a connecting mechanism, the overall structure of the power transmission assembly is complex, the number of related workpieces is large, and the low mounting efficiency and the poor sealing performance of the power transmission assembly are difficult to guarantee.

Disclosure of Invention

The utility model aims to provide a: the rotary switching type four-way valve is simple in structure and solves the problems that a power transmission assembly of the four-way valve in the prior art is too complex, the number of parts is large, and assembly is complex.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

a rotary switching type four-way valve comprises a power transmission assembly, wherein the power transmission assembly comprises a rotating piece, a handle part of the rotating piece is rotatably connected with a fixing piece through a column hole matching structure, one end of the rotating piece, penetrating out of the fixing piece, is used for being connected with a driving structure, a rotary limiting structure is formed between the part of the rotating piece, extending into the inner end of the fixing piece, and is used for limiting the rotating angle of the rotating piece; the rotary limiting structure comprises a rotary part radial extending part and at least two limiting parts protruding inwards in the radial direction on the fixing part, and a circumferential space between the two limiting parts forms a rotary space required by the rotation of the radial extending part, so that the rotary part can rotate relative to the fixing part within a set angle, and further a connecting channel of the four-way valve is switched.

According to the technical scheme, the power transmission assembly is provided with the rotating part and the fixing part respectively, the rotating part is connected with the driving structure to transmit the rotating power, meanwhile, the rotating part is positioned in the rotating space formed by the fixing part, and the rotating part can only rotate at a certain angle in the rotating space through the arrangement of the limiting part in the rotating space, the angle corresponds to two different communication states of the four-way valve, so that a workpiece fixed with the rotating part is driven to rotate, and the switching of different communication modes in the four-way valve is realized; the structure control mode of the power transmission assembly is simplified, the number of workpieces of the power transmission assembly is reduced, and the four-way valve is favorable for improving the installation efficiency.

Furthermore, a sealing ring is arranged on the column hole matching section of the rotating part and the fixing part, and the sealing ring is arranged through an installation groove formed in the rotating part. The sealing ring is arranged at the joint of the rotating part and the fixing part, so that the rotating connection of the rotating part and the fixing part is realized, and the sealing effect is also realized.

Furthermore, the fixed part is barrel-shaped, and the rotating space is arranged at the bottom in the barrel; a fixed disc and a rotating disc are arranged in the barrel of the fixed part; the fixed piece and the fixed disc, and the rotating piece and the rotating disc are respectively connected through axial insertion matching structures and do not rotate relatively; the fixing piece is reversely buckled in a reversing groove formed in the valve body base, and the fixing piece is connected with the valve body base in a splicing matching structure and does not rotate relatively. The fixed disk and the rotating disk are located in the barrel-shaped structure of the fixed part, the fixed part and the fixed disk do not rotate relatively through the axial inserting matching structure, the rotating part and the rotating disk do not rotate relatively through the axial inserting matching structure, the driving structure drives the rotating part to rotate, and then the rotating disk rotates on the fixed disk, so that switching of different communication modes in the four-way valve is achieved.

Furthermore, two symmetrical long grooves are formed in one surface, facing the fixed disc, of the rotating disc, 4 through holes are formed in the fixed disc, and each long groove can be communicated with any two adjacent through holes. After the rotating disc rotates for one time relative to the fixed disc, the through holes corresponding to the same long groove are converted, and then switching of different communication modes in the four-way valve is achieved.

Furthermore, two connecting pins extend out of one side of the rotating piece, which faces the rotating disc, connecting holes for the connecting pins to be inserted are formed in the rotating disc, and the connecting pins and the connecting holes form corresponding inserting and matching structures. The rotating part forms a plug-in matching structure with the rotating disc through the connecting pin, so that the effect that the rotating part and the rotating disc do not rotate relatively is achieved, and meanwhile, the rotating disc is convenient to disassemble.

Furthermore, two first grooves are formed in the inner wall of the fixing piece, inserting parts protrude from corresponding positions on the peripheral side of the fixed disc, and the inserting parts and the first grooves form corresponding inserting matching structures. The fixed disk is clamped into the first groove of the fixing piece through the inserting part, so that the effect that the fixed disk and the fixing piece do not rotate relatively is achieved, and the fixed disk is convenient to detach from the fixing piece.

Furthermore, two anti-rotation pins are fixed on the inner peripheral side of the reversing groove, two second grooves are formed in corresponding positions of the periphery of the fixing piece, and the second grooves and the anti-rotation pins form corresponding inserting and matching structures. The fixing piece is located the switching-over inslot, and fixing piece and switching-over groove pass through the stop pin and form grafting cooperation structure for do not take place relative rotation between fixing piece and the switching-over groove, thereby fixed the position of fixing piece.

Furthermore, a sealing piece is arranged between the fixing piece and the bottom of the reversing groove, a connecting hole is formed in the bottom of the reversing groove, and a protruding structure extending into the connecting hole is arranged on the sealing piece. The sealing element is beneficial to sealing between the fixing element and the reversing groove, and the protruding structure of the sealing element extends into the connecting hole, so that the sealing effect is enhanced.

Further, the power transmission assembly is axially fixed in the reversing groove through a fixing piece and a pressing disc and is pressed on the sealing piece; the pressing disc is connected with the valve body base in a screwing mode. The pressing disc is used for pressing the power transmission assembly at the position of axially fixing the power transmission assembly, and sealing of the fixing piece in the reversing groove is achieved.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the power transmission assembly is provided with a rotating part and a fixing part respectively, the rotating part is connected with the driving structure to transmit rotating power, the rotating part is positioned in a rotating space formed by the fixing part, and the rotating part can only rotate at a certain angle in the rotating space through the arrangement of a limiting part in the rotating space, the angle corresponds to two different communication states of the four-way valve, so that a workpiece fixed with the rotating part is driven to rotate, and the switching of different communication modes in the four-way valve is realized; the structure control mode of the power transmission assembly is simplified, the number of workpieces of the power transmission assembly is reduced, and the four-way valve is favorable for improving the installation efficiency.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows the structure diagram of the rotary switching four-way valve of the present invention.

Fig. 2 shows an exploded view of fig. 1.

Fig. 3 shows a cross-sectional view of fig. 1.

Fig. 4 shows a block diagram of the rotating member and the fixed member.

Wherein the figures include the following reference numerals:

1, a rotating member; 11, mounting a groove; 12 connecting pins; 2, fixing a part; 21 a rotation space; 22 a first groove; 23 a second groove; 3, fixing the disc; 31 a through hole; 32 a clip portion; 4, rotating the disc; 41 long grooves; 5, a valve body base; 51 a commutation slot; 52 anti-rotation pins; 6, sealing element; 7 compressing the disc.

Detailed Description

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 to 4, a rotary switching four-way valve comprises a power transmission assembly, the power transmission assembly comprises a rotary member 1, a handle of the rotary member 1 is rotatably connected with a fixed member 2 through a column hole matching structure, one end of the rotary member 1 penetrating out of the fixed member 2 is used for being connected with a driving structure, a rotary limiting structure is formed between a part of the rotary member 1 extending into the inner end of the fixed member 2 and the fixed member 2, and the rotary limiting structure is used for limiting a rotation angle of the rotary member 1; the rotary limiting structure comprises a radial extending part of the rotating part 1 and at least two limiting parts protruding inwards in the radial direction on the fixing part 2, and a circumferential space between the two limiting parts forms a rotating space 21 required by the rotation of the radial extending part, so that the rotating part 1 can rotate relative to the fixing part 2 within a set angle, and further a connecting channel of the four-way valve is switched.

As shown in fig. 3, preferably, a sealing ring is arranged on the matching section of the column hole of the rotating member 1 and the fixed member 2, and the sealing ring is arranged through an installation groove 11 formed on the rotating member 1.

As shown in fig. 3, preferably, the fixing member 2 is in a barrel shape, and the rotating space 21 is provided at the bottom inside the barrel; a fixed disc 3 and a rotating disc 4 are arranged in the barrel of the fixed part 2; the fixed part 2 and the fixed disc 3, and the rotating part 1 and the rotating disc 4 are respectively connected through an axial splicing matching structure without generating relative rotation; the fixing part 2 is reversely buckled in a reversing groove 51 formed in the valve body base 5, and the fixing part 2 is connected with the valve body base 5 in a splicing matching structure and does not rotate relatively.

As shown in fig. 2, preferably, two symmetrical long grooves 41 are formed in one surface of the rotating disc 4 facing the

fixed disc

3, 4 through holes 31 are formed in the fixed disc 3, and each long groove 41 can communicate any two adjacent through holes 31.

As shown in fig. 2, preferably, two connecting pins 12 extend from the rotating member 1 toward one side of the rotating disk 4, a connecting hole into which the connecting pin 12 is inserted is formed in the rotating disk 4, and the connecting pin 12 and the connecting hole form a corresponding inserting and matching structure.

As shown in fig. 4, preferably, two first grooves 22 are formed in the inner wall of the fixing member 2, and inserting portions 32 protrude from corresponding positions on the peripheral side of the fixing plate 3, and the inserting portions 32 and the first grooves 22 form a corresponding inserting and matching structure.

As shown in fig. 4, preferably, two rotation-preventing pins 52 are fixed on the inner circumference side of the reversing slot 51, two second grooves 23 are formed at corresponding positions on the outer circumference of the fixing member 2, and the second grooves 23 and the rotation-preventing pins 52 form corresponding insertion-fit structures.

As shown in fig. 3, preferably, a sealing member 6 is disposed between the fixed member 2 and the bottom of the reversing groove 51, a connecting hole is disposed at the bottom of the reversing groove 51, and a protrusion structure extending into the connecting hole is disposed on the sealing member 6.

As shown in fig. 3, the power transmission assembly is preferably axially fixed in the reversing slot 51 through the fixing member 2 and the pressing disk 7 and pressed against the sealing member 6; the pressing plate 7 is connected with the valve body base 5 in a screwing mode.

The scope of the present invention is defined not by the above-described embodiments but by the appended claims and equivalents thereof.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary switching type four-way valve is characterized by comprising a power transmission assembly, wherein the power transmission assembly comprises a rotating piece (1), a handle part of the rotating piece (1) is rotatably connected with a fixing piece (2) through a column hole matching structure, one end of the rotating piece (1) penetrating out of the fixing piece (2) is used for being connected with a driving structure, a rotary limiting structure is formed between the part of the rotating piece (1) extending into the inner end of the fixing piece (2) and the fixing piece (2), and the rotary limiting structure is used for limiting the rotating angle of the rotating piece (1); the rotary limiting structure comprises a radial extending part of the rotary part (1) and at least two limiting parts which are arranged on the fixing part (2) and protrude inwards in the radial direction, and a circumferential space between the two limiting parts forms a rotary space (21) required by the rotation of the radial extending part, so that the rotary part (1) can rotate relative to the fixing part (2) within a set angle, and a connecting channel of the four-way valve is switched.

2. The four-way valve according to claim 1, wherein a sealing ring is arranged on the section of the rotating member (1) matched with the column hole of the fixed member (2), and the sealing ring is arranged through an installation groove (11) formed in the rotating member (1).

3. The rotary switching four-way valve according to claim 1, wherein the stationary member (2) has a barrel shape, and the rotating space (21) is provided at an inner bottom of the barrel; a fixed disc (3) and a rotating disc (4) are arranged in the barrel of the fixed piece (2); the fixed piece (2) and the fixed disc (3) and the rotating piece (1) and the rotating disc (4) are connected through axial insertion fit structures respectively and do not rotate relatively; the fixing piece (2) is reversely buckled in a reversing groove (51) formed in the valve body base (5), and the fixing piece (2) is connected with the valve body base (5) in a splicing matching structure and does not rotate relatively.

4. The four-way valve according to claim 3, wherein two symmetrical long slots (41) are formed in one surface of the rotating disk (4) facing the fixed disk (3), 4 through holes (31) are symmetrically distributed in the fixed disk (3), and each long slot (41) can communicate with any two adjacent through holes (31).

5. The four-way valve according to claim 3, wherein two connecting pins (12) extend from one side of the rotating member (1) facing the rotating disk (4), the rotating disk (4) is provided with connecting holes for inserting the connecting pins (12), and the connecting pins (12) and the connecting holes form the corresponding inserting and matching structure.

6. The four-way valve according to claim 3, wherein the fixing member (2) has two first grooves (22) formed in an inner wall thereof, and the fixing plate (3) has insertion parts (32) protruding from corresponding positions on the peripheral side thereof, wherein the insertion parts (32) and the first grooves (22) form corresponding insertion engagement structures.

7. The four-way valve according to claim 3, wherein two anti-rotation pins (52) are fixed on the inner circumference of the reversing groove (51), two second grooves (23) are formed in the corresponding positions of the outer circumference of the fixing member (2), and the second grooves (23) and the anti-rotation pins (52) form the corresponding insertion fit structure.

8. The four-way valve according to claim 3, wherein a sealing member (6) is disposed between the fixing member (2) and the bottom of the reversing groove (51), a connecting hole is formed in the bottom of the reversing groove (51), and a protrusion structure extending into the connecting hole is disposed on the sealing member (6).

9. The four-way rotary switching valve according to claim 8, wherein the power transmission assembly is axially fixed in the commutation groove (51) by the fixing member (2) and a pressing disk (7) and pressed against the sealing member (6); the pressing disc (7) is in threaded connection with the valve body base (5).