CN219673349U

CN219673349U - Pilot valve sleeve control type switch valve

Info

Publication number: CN219673349U
Application number: CN202223528801.4U
Authority: CN
Inventors: 周敏杰
Original assignee: Changzhou Amg Refrigeration Equipment Co ltd
Current assignee: Changzhou Amg Refrigeration Equipment Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-09-12
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a pilot valve sleeve control type switch valve, which comprises a main valve body, wherein a valve core and a plug are movably arranged in the main valve body, the plug is fixedly arranged in the middle of the valve core, an elastic air cushion and a filling mechanism are movably arranged at the periphery of the plug, the filling mechanism is fixedly arranged at one side of the elastic air cushion, which is close to the plug, the inside of the elastic air cushion is provided with a plenum chamber, one side of the elastic air cushion, which is far away from the filling mechanism, is fixedly provided with a plenum tube, and a directional groove is formed in the position of the main valve body, which corresponds to the elastic air cushion; the utility model relates to the technical field of pilot valve sleeve control type switch valves, and discloses a filling mechanism. According to the pilot valve sleeve control type switch valve, the filling mechanisms are arranged at the two ends of the plug, so that the leakage phenomenon of an internal pipeline can be obviously improved.

Description

Pilot valve sleeve control type switch valve

Technical Field

The utility model relates to the technical field of pilot valve sleeve control type switching valves, in particular to a pilot valve sleeve control type switching valve.

Background

The existing pilot valve sleeve control type switch valve design principle is that the internal channel of the main valve body inherently leaks, and the leakage quantity can be increased along with the service life.

For example, chinese patent application No. CN201811337460.8 discloses a pilot valve sleeve control type switching valve, which reduces the specification size of the electromagnetic driving device, reduces the whole weight and installation size, reduces the required control power, and improves the capability of the whole valve against external disturbance, and has more stable performance compared with the single-stage valve originally used for small flow. Compared with the prior two-stage valve for medium and large flow, the weight and the installation size of the whole fluid control valve can be greatly reduced, parts are reduced, and the stability of the valve is further improved. However, the above and prior designs inherently leak through the internal passages of the main valve body.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a pilot valve sleeve control type switch valve, which solves the problem of inherent leakage of a main valve inner channel in the design principle of the existing pilot valve sleeve control type switch valve.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the pilot valve sleeve control type switch valve comprises a main valve body, wherein a valve core and a plug are movably arranged in the main valve body, the plug is fixedly arranged in the middle of the valve core, an elastic air cushion and a filling mechanism are movably arranged at the periphery of the plug, the filling mechanism is fixedly arranged at one side of the elastic air cushion, which is close to the plug, a plenum chamber is arranged in the elastic air cushion, an inflation tube is fixedly arranged at one side of the elastic air cushion, which is far away from the filling mechanism, and a directional groove is formed in the position, corresponding to the elastic air cushion, of the main valve body;

the filling mechanism comprises a hard block, a soft block and a directional column, wherein the soft block is fixedly arranged on one side, close to the plug, of the hard block, the directional column is fixedly arranged at two ends of the directional column corresponding to the hard block, a buffer chamber is formed in the soft block, and an elastic supporting bar is fixedly arranged in the buffer chamber.

Preferably, the main valve body is internally provided with a main channel, a middle channel, a first side channel, a second side channel and a valve core channel, the main channel is positioned at the top of the middle channel, the first side channel and the second side channel are respectively positioned at two sides of the middle channel, and the valve core channel is inserted and communicated among the main channel, the middle channel, the first side channel and the second side channel.

Preferably, the valve core channel is provided with a filling channel corresponding to the position of the filling mechanism in a communicating way, the filling mechanism is movably arranged in the filling channel, and the valve core movably penetrates through the valve core channel.

Preferably, the plugs are arranged in two groups corresponding to the first side channels and the second side channels, and the filling mechanism is arranged in two groups corresponding to the two ends of the plugs.

Preferably, the inflation chamber and the inflation tube are communicated, and the elastic air cushion and the filling mechanism are arc-shaped.

Preferably, the orientation column is movably arranged in the orientation groove, and the elastic support bar and the hard block are mutually perpendicular.

Advantageous effects

The utility model provides a pilot valve sleeve control type switch valve. Compared with the prior art, the method has the following beneficial effects:

1. this pilot valve cover control formula ooff valve through setting up the filling mechanism in the both ends department of end cap, can obviously improve the leakage phenomenon of inside pipeline, aerifys the inside of plenum chamber through the gas tube, can follow filling channel inside with filling mechanism and push out, and the hard piece plays the effect of supporting soft piece, and soft piece contact extrusion end cap, buffer chamber provide the buffering space, provide better sealed effect for soft piece.

2. The pilot valve sleeve controls the switch valve, the directional column slides along the inside of the directional groove to play a directional role in moving the hard block, and the elastic support bar plays a role in elastically supporting the buffer chamber.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure A of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of the spring mattress according to the present utility model;

fig. 4 is a schematic cross-sectional view of the filling mechanism of the present utility model.

In the figure: 1. a main valve body; 11. a main channel; 12. an intermediate channel; 13. a first side channel; 14. a second side channel; 15. a spool passage; 16. filling the channel; 2. a valve core; 3. a plug; 4. an elastic air cushion; 41. a plenum chamber; 5. a filling mechanism; 51. a hard mass; 52. a soft mass; 53. a directional column; 54. a buffer chamber; 55. an elastic support bar; 6. an inflation tube; 7. orientation groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the pilot valve sleeve control type switch valve comprises a main valve body 1, wherein a valve core 2 and a plug 3 are movably arranged in the main valve body 1, the plug 3 is fixedly arranged in the middle of the valve core 2, an elastic air cushion 4 and a filling mechanism 5 are movably arranged on the periphery of the plug 3, the filling mechanism 5 is fixedly arranged on one side of the elastic air cushion 4, which is close to the plug 3, a plenum chamber 41 is arranged in the elastic air cushion 4, a plenum tube 6 is fixedly arranged on one side of the elastic air cushion 4, which is far away from the filling mechanism 5, and a directional groove 7 is formed in the position of the main valve body 1, which corresponds to the elastic air cushion 4;

the filling mechanism 5 comprises a hard block 51, a soft block 52 and a directional column 53, wherein the soft block 52 is fixedly arranged on one side, close to the plug 3, of the hard block 51, the directional column 53 is fixedly arranged at two ends, corresponding to the hard block 51, of the directional column 53, a buffer chamber 54 is formed in the soft block 52, and an elastic supporting bar 55 is fixedly arranged in the buffer chamber 54.

The main valve body 1 is internally provided with a main channel 11, a middle channel 12, a first side channel 13, a second side channel 14 and a valve core channel 15, the main channel 11 is positioned at the top of the middle channel 12, the first side channel 13 and the second side channel 14 are respectively positioned at two sides of the middle channel 12, the valve core channel 15 is inserted and communicated among the main channel 11, the middle channel 12, the first side channel 13 and the second side channel 14, the valve core channel 15 is correspondingly provided with a filling channel 16 in a position communication manner of the filling mechanism 5, the filling mechanism 5 is movably arranged in the filling channel 16, the valve core 2 movably penetrates through the valve core channel 15, the plug 3 is correspondingly provided with two groups corresponding to the first side channel 13 and the second side channel 14, the filling mechanism 5 is correspondingly provided with two groups corresponding to the two ends of the plug 3, a plenum chamber 41 and a plenum chamber 6 are in a communication manner, and the elastic air cushion 4 and the filling mechanism 5 are both arc-shaped. The filling mechanisms 5 are arranged at the two ends of the plug 3, so that the leakage phenomenon at the plug 3 can be obviously improved, the filling mechanisms 5 can be ejected out of the filling channel 16 by inflating the inflation tube 6 into the inflation chamber 41, the hard block 51 plays a role in supporting the soft block 52, the soft block 52 contacts and presses the plug 3, the buffer chamber 54 provides a buffer space, and a better sealing effect is provided for the soft block 52.

Referring to fig. 2 and 4, the orientation column 53 is movably disposed inside the orientation groove 7, and the elastic support bar 55 and the hard block 51 are perpendicular to each other. The orientation column 53 slides along the inside of the orientation groove 7, which plays an orientation role for the movement of the hard mass 51, and the elastic support bar 55 plays an elastic support buffer chamber 54.

During operation, the first side channel 13 and the second side channel 14 can be opened and closed through the plug 3, which is not described in detail in the prior art, the existing design principle is that the internal channel of the main valve body 1 is inherently leaked, the leakage amount may increase along with the service life, namely, when the plug 3 is closed, the valve core channel 15 has a leakage phenomenon, the leakage phenomenon at the plug 3 can be obviously improved by arranging the filling mechanisms 5 at two ends of the plug 3, the filling mechanisms 5 can be ejected out from the inside of the filling channel 16 by inflating the inflation tube 6 to the inside of the inflation chamber 41, the hard block 51 plays a role of supporting the soft block 52, the directional column 53 slides along the inside of the directional groove 7, plays a role of directional movement of the hard block 51, the soft block 52 contacts the extrusion plug 3, the buffer chamber 54 provides a buffer space, the elastic support bar 55 plays a role of elastically supporting the buffer chamber 54, and provides a better sealing effect for the soft block 52, thereby improving the leakage phenomenon of the internal pipeline.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims

1. The pilot valve sleeve control type switch valve comprises a main valve body (1), and is characterized in that: the main valve comprises a main valve body (1), wherein a valve core (2) and a plug (3) are movably arranged in the main valve body (1), the plug (3) is fixedly arranged in the middle of the valve core (2), an elastic air cushion (4) and a filling mechanism (5) are movably arranged at the periphery of the plug (3), the filling mechanism (5) is fixedly arranged at one side of the elastic air cushion (4) close to the plug (3), a plenum chamber (41) is arranged in the elastic air cushion (4), an inflation tube (6) is fixedly arranged at one side of the elastic air cushion (4) away from the filling mechanism (5), and a directional groove (7) is formed in the position of the main valve body (1) corresponding to the elastic air cushion (4);

the filling mechanism (5) comprises a hard block (51), a soft block (52) and a directional column (53), wherein the soft block (52) is fixedly arranged on one side, close to the plug (3), of the hard block (51, the directional column (53) is fixedly arranged at two ends, corresponding to the hard block (51), of the directional column (53), a buffer chamber (54) is formed in the soft block (52), and an elastic supporting bar (55) is fixedly arranged in the buffer chamber (54).

2. The pilot operated switching valve as set forth in claim 1, wherein: main passageway (11), intermediate channel (12), first side passageway (13), second side passageway (14) and case passageway (15) have been seted up to the inside of main valve body (1), main passageway (11) are located the top of intermediate channel (12), first side passageway (13) and second side passageway (14) are located the both sides of intermediate channel (12) respectively, case passageway (15) alternate to communicate between main passageway (11), intermediate channel (12), first side passageway (13) and second side passageway (14).

3. The pilot operated switching valve as set forth in claim 2, wherein: the valve core channel (15) is communicated with the filling mechanism (5) correspondingly, a filling channel (16) is arranged in the filling mechanism (5) in a communicating mode, the filling mechanism (5) is movably arranged in the filling channel (16), and the valve core (2) movably penetrates through the valve core channel (15).

4. The pilot operated switching valve as set forth in claim 2, wherein: two groups of plugs (3) are arranged corresponding to the first side channels (13) and the second side channels (14), and two groups of filling mechanisms (5) are arranged corresponding to two ends of the plugs (3).

5. The pilot operated switching valve as set forth in claim 1, wherein: the inflation chamber (41) is communicated with the inflation tube (6), and the elastic air cushion (4) and the filling mechanism (5) are both arranged in an arc shape.

6. The pilot operated switching valve as set forth in claim 1, wherein: the orientation column (53) is movably arranged in the orientation groove (7), and the elastic support bar (55) and the hard block (51) are mutually perpendicular.