CN211975938U

CN211975938U - Sliding plate valve structure

Info

Publication number: CN211975938U
Application number: CN202020569720.0U
Authority: CN
Inventors: 李治南
Original assignee: Shenzhen Jiamao Pneumatic Equipment Co ltd
Current assignee: Shenzhen Jiamao Pneumatic Equipment Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-20
Anticipated expiration: 2030-04-16

Abstract

The utility model provides a slide plate valve structure, include: the main valve body, the slide, the power cylinder, first connecting pipe and second connecting pipe, the main valve body has the slip chamber, the slide slides and assembles in the slip chamber, the power cylinder includes cylinder body and the piston rod with cylinder body sliding connection, the cylinder body is fixed in the one end of the main valve body, the output of piston rod links to each other with the slide, the main valve body sets up the first opening that passes the slip chamber, first connecting pipe and second connecting pipe are connected respectively in the both ends of first opening, first connecting pipe and second connecting pipe support tightly with the both sides of slide respectively, the slide is close to the piston rod and is located to set up the second opening, the piston rod can drive the slide and move in the slip chamber, the orbit of second opening is through first opening, when the piston rod retracts in the cylinder body, the second opening is totally in the cylinder body side of being close to of first opening. When the sliding plate valve is closed, the piston rod cannot be exposed outside, the outside cleanness of the piston rod can be kept, and therefore the service life of the sliding plate valve is prolonged.

Description

Sliding plate valve structure

Technical Field

The utility model belongs to the technical field of the valve device, especially, relate to a slide plate valve structure.

Background

The sliding plate valve used on the train generally comprises a main valve body, a power cylinder and a sliding plate, wherein openings are formed in the main valve body and the sliding plate, the sliding plate is driven to move relative to the main valve body through the action of a piston rod of the power cylinder, so that the opening two ends of the main valve body are communicated or sealed, in the related technology, the sliding plate valve is normally in a closed state when the train is stopped, the piston rod extends out of the cylinder body of the power cylinder at the moment, the piston rod can be exposed outside for a long time and does not move, mist on the piston rod can be solidified into solid under the state of low temperature, when the sliding plate valve is started again, the solidified solid can scrape the sealing element of the power cylinder, the sealing element of the power cylinder fails or the piston rod is blocked, and the service life of the.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a slide valve structure is provided, the piston rod can not expose outside when closing, can keep the outside clean of piston rod, improves the life of slide valve.

In order to solve the technical problem, the utility model discloses a realize like this, a slide valve structure, include: the power cylinder comprises a cylinder body and a piston rod which is in sliding connection with the cylinder body, the cylinder body is fixed at one end of the main valve body, the output end of the piston rod is connected with the sliding plate, the main valve body is provided with a first opening which penetrates through the sliding cavity, the first connecting pipe and the second connecting pipe are respectively connected with two ends of the first opening, gaps are formed between the first connecting pipe and the second connecting pipe at intervals, the first connecting pipe and the second connecting pipe are respectively abutted against two surfaces of the sliding plate, a second opening is arranged at the position, close to the piston rod, of the sliding plate, the piston rod can drive the sliding plate to move in the sliding cavity, and the motion track of the second opening passes through the first opening, when the piston rod is retracted into the cylinder, the second opening is completely on the side of the first opening close to the cylinder.

Furthermore, an embedding opening is formed in the side, connected with the piston rod, of the sliding plate, the output end of the piston rod extends outwards in the radial direction to form a flange, and the flange is embedded in the embedding opening.

Furthermore, a first sealing ring is embedded between the first connecting pipe and the sliding plate, and a second sealing ring is embedded between the second connecting pipe and the sliding plate.

Further, the inner diameter of the second opening is smaller than the inner diameter of the first opening.

Further, the main valve body comprises a first end cover, a valve body, a fixed seat and a second end cover, the first end cover is fixed at one end of the valve body, the cylinder body is fixed at the side, far away from the valve body, of the first end cover, the second end cover is fixed at the other end of the valve body, the fixed seat is fixed at the first opening of the valve body, and the first connecting pipe and the second connecting pipe are connected to the fixed seat.

Furthermore, a stiffening rib is arranged on the outer side of the joint of the valve body and the first end cover.

Further, the fixing base includes a base body, a first limiting part, a second limiting part, a first flange plate and a second flange plate, the base body is fixedly connected with the valve body, the first limiting part is sleeved outside the first connecting pipe and embedded in the base body, the first flange plate is fixed on the base body and abuts against the outer side of the first limiting part, the second limiting part is sleeved outside the second connecting pipe and embedded in the base body, and the second flange plate is fixed on the base body and abuts against the outer side of the second limiting part.

Furthermore, the end of the first connecting pipe close to the fixing base extends outwards to form a first limiting edge, the first limiting part abuts against the first limiting edge, the end of the second connecting pipe close to the fixing base extends outwards to form a second limiting edge, and the second limiting part abuts against the second limiting edge.

Further, the first flange plate and the second flange plate are connected with the base body through screws.

Further, the power cylinder adopts an air cylinder.

Compared with the prior art, the utility model, well slide plate valve structure, beneficial effect lies in:

when the piston rod drives the slide and moves and make second opening and first opening align, first connecting pipe and second connecting pipe intercommunication, when the piston rod telescoped in the cylinder body, the second opening moved to the second open-ended is close to the cylinder side completely, the slide fender was between first connecting pipe and second connecting pipe this moment, the passageway was closed between first connecting pipe and the second connecting pipe, and, the piston rod did not expose outside the cylinder body, therefore, the piston rod can not expose outside, can keep the outside clean cleanness of piston rod, thereby improve the life of slide valve.

Drawings

FIG. 1 is a schematic view of the overall structure of a sliding plate valve structure in an embodiment of the present invention;

fig. 2 is a schematic view of a three-dimensional exploded structure of a sliding plate valve structure in an embodiment of the present invention.

In the drawings, each reference numeral denotes: 1. a main valve body; 11. a first end cap; 12. a valve body; 13. a fixed seat; 14. a second end cap; 15. a stiffening rib; 131. a base body; 132. a first limit piece; 133. a second limiting member; 134. a first flange plate; 135. a second flange plate; 2. a slide plate; 21. a second opening; 22. an embedding opening; 3. a power cylinder; 31. a cylinder body; 32. a piston rod; 321. a flange; 4. a first connecting pipe; 41. a first limit edge; 5. a second connecting pipe; 51. a second limit edge; 6. a first seal ring; 7. and a second seal ring.

Detailed Description

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 merely illustrative of the invention and are not intended to limit the invention.

Example (b):

in the present embodiment, as shown in fig. 1, the slide valve structure includes: the main valve body 1 is provided with a sliding cavity, the sliding plate 2 is assembled in the sliding cavity in a sliding mode, the power cylinder 3 comprises a cylinder body 31 and a piston rod 32 connected with the cylinder body 31 in a sliding mode, the cylinder body 31 is fixed at one end of the main valve body 1, the output end of the piston rod 32 is connected with the sliding plate 2, the main valve body 1 is provided with a first opening penetrating through the sliding cavity, the first connecting pipe 4 and the second connecting pipe are respectively connected to two ends of the first opening, a gap is formed between the first connecting pipe 4 and the second connecting pipe 5, the first connecting pipe 4 and the second connecting pipe 5 are respectively abutted against two sides of the sliding plate 2, the second opening 21 is formed in the position, close to the piston rod 32, of the sliding plate 2, the piston rod 32 can drive the sliding plate 2 to move in the sliding cavity, the movement track of the second opening 21 passes through the first opening, and when the piston rod 32 retracts into the cylinder body 31, the second opening 21 is entirely on the cylinder 31 side of the first opening.

When the piston rod 32 drives the sliding plate 2 to move to align the second opening 21 with the first opening, the first connecting pipe 4 is communicated with the second connecting pipe 5, when the piston rod 32 retracts into the cylinder 31, the second opening 21 completely moves to the side, close to the cylinder 31, of the second opening 21, the sliding plate 2 is blocked between the first connecting pipe 4 and the second connecting pipe 5, a channel between the first connecting pipe 4 and the second connecting pipe 5 is closed, and the piston rod 32 is not exposed out of the cylinder 31, so that the piston rod 32 cannot be exposed out, the outside of the piston rod 32 can be kept clean, and the service life of the sliding plate 2 valve is prolonged.

The side of the slide plate 2 connected with the piston rod 32 is provided with an embedding opening 22, the output end of the piston rod 32 extends outwards in the radial direction to form a flange 321, and the flange 321 is embedded in the embedding opening 22. This ensures a stable connection of the piston rod 32 to the slide 2.

A first sealing ring 6 is embedded between the first connecting pipe 4 and the sliding plate 2, and a second sealing ring 7 is embedded between the second connecting pipe 5 and the sliding plate 2. The inner diameter of the second opening 21 is smaller than the inner diameter of the first opening. The sealing washer can all the time with the side butt of slide 2, the leakproofness of slide valve structure can be guaranteed in the setting of sealing washer, avoids revealing from slide 2 through the liquid of first connecting pipe 4 and second connecting pipe 5.

The main valve body 1 includes first end cover 11, valve body 12, fixing base 13 and second end cover 14, and first end cover 11 is fixed in the one end of valve body 12, and cylinder body 31 is fixed in keeping away from valve body 12 side of first end cover 11, and second end cover 14 is fixed in the other end of valve body 12, and fixing base 13 is fixed in offering first opening part of valve body 12, and first connecting pipe 4 and second connecting pipe 5 are connected in fixing base 13.

And a stiffening rib 15 is arranged outside the joint of the valve body 12 and the first end cover 11. The cylinder 31 and the first end cap 11 are fixedly connected by screws.

The fixing seat 13 includes a seat body 131, a first limiting member 132, a second limiting member 133, a first flange plate 134 and a second flange plate 135, the seat body 131 is fixedly connected to the valve body 12, the first limiting member 132 is sleeved outside the first connecting pipe 4 and embedded in the seat body 131, the first flange plate 134 is fixed to the seat body 131 and abuts against the outer side of the first limiting member 132, the second limiting member 133 is sleeved outside the second connecting pipe 5 and embedded in the seat body 131, and the second flange plate 135 is fixed to the seat body 131 and abuts against the outer side of the second limiting member 133.

The end of the first connecting tube 4 close to the fixing base 13 extends outward to form a first limiting edge 41, the first limiting member 132 abuts against the first limiting edge 41, the end of the second connecting tube 5 close to the fixing base 13 extends outward to form a second limiting edge 51, and the second limiting member 133 abuts against the second limiting edge 51. The first limiting member 132 and the second limiting member 133 abut against each other to ensure that the first connecting pipe 4 and the second connecting pipe 5 are stably connected with the seat body 131, and the first connecting pipe 4 and the second connecting pipe 5 abut against the first sealing ring 6 and the second sealing ring 7 respectively to ensure sealing performance.

The first flange plate 134 and the second flange plate 135 are connected to the housing 131 by screws. The slide valve structure also includes a conduit connecting the cylinder 31 and the valve body 12. In the present embodiment, the power cylinder 3 is a pneumatic cylinder, and in some embodiments, the power cylinder 3 may also be a hydraulic cylinder.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A slide valve structure, comprising: the main valve body (1), the sliding plate (2), the power cylinder (3), the first connecting pipe (4) and the second connecting pipe (5), the main valve body (1) is provided with a sliding cavity, the sliding plate (2) is assembled in the sliding cavity in a sliding manner, the power cylinder (3) comprises a cylinder body (31) and a piston rod (32) which is connected with the cylinder body (31) in a sliding manner, the cylinder body (31) is fixed at one end of the main valve body (1), the output end of the piston rod (32) is connected with the sliding plate (2), the main valve body (1) is provided with a first opening which penetrates through the sliding cavity, the first connecting pipe (4) and the second connecting pipe are respectively connected at two ends of the first opening, a gap is formed between the first connecting pipe (4) and the second connecting pipe (5), the first connecting pipe (4) and the second connecting pipe (5) are respectively abutted against two sides of the sliding plate (2), a second opening (21) is formed in the position, close to the piston rod (32), of the sliding plate (2), the piston rod (32) can drive the sliding plate (2) to move in the sliding cavity, the motion track of the second opening (21) passes through the first opening, and when the piston rod (32) retracts into the cylinder body (31), the second opening (21) is completely located on the side, close to the cylinder body (31), of the first opening.

2. The sliding plate valve structure according to claim 1, wherein a fitting opening (22) is formed in the connecting side of the sliding plate (2) and the piston rod (32), the output end of the piston rod (32) extends outwards in the radial direction to form a flange (321), and the flange (321) is fitted in the fitting opening (22).

3. A sliding plate valve structure according to claim 1, characterised in that a first sealing ring (6) is embedded between the first connecting pipe (4) and the sliding plate (2), and a second sealing ring (7) is embedded between the second connecting pipe (5) and the sliding plate (2).

4. A sliding plate valve arrangement according to claim 1, characterised in that the second opening (21) has a smaller inner diameter than the first opening.

5. The sliding plate valve structure according to any one of claims 1 to 4, wherein the main valve body (1) comprises a first end cover (11), a valve body (12), a fixed seat (13) and a second end cover (14), the first end cover (11) is fixed at one end of the valve body (12), the cylinder body (31) is fixed at the side of the first end cover (11) far away from the valve body (12), the second end cover (14) is fixed at the other end of the valve body (12), the fixed seat (13) is fixed at the first opening of the valve body (12), and the first connecting pipe (4) and the second connecting pipe (5) are connected to the fixed seat (13).

6. The gate valve structure according to claim 5, characterised in that a stiffening rib (15) is provided outside the junction of the valve body (12) and the first end cap (11).

7. The sliding plate valve structure according to claim 6, wherein the fixing seat (13) includes a seat body (131), a first limiting member (132), a second limiting member (133), a first flange plate (134) and a second flange plate (135), the seat body (131) is fixedly connected to the valve body (12), the first limiting member (132) is sleeved outside the first connecting pipe (4) and embedded inside the seat body (131), the first flange plate (134) is fixed to the seat body (131) and abuts against an outer side of the first limiting member (132), the second limiting member (133) is sleeved outside the second connecting pipe (5) and embedded inside the seat body (131), and the second flange plate (135) is fixed to the seat body (131) and abuts against an outer side of the second limiting member (133).

8. The sliding plate valve structure according to claim 7, wherein the end of the first connecting pipe (4) close to the fixed seat (13) extends outwards to form a first limiting edge (41), the first limiting member (132) abuts against the first limiting edge (41), the end of the second connecting pipe (5) close to the fixed seat (13) extends outwards to form a second limiting edge (51), and the second limiting member (133) abuts against the second limiting edge (51).

9. The gate valve structure according to claim 8, characterized in that the first flange plate (134) and the second flange plate (135) are each connected to the seat body (131) by means of screws.

10. The gate valve structure according to claim 5, characterized in that the power cylinder (3) is a gas cylinder.