CN219975695U - Sealing structure of combined sleeve valve - Google Patents

Abstract

The utility model discloses a sealing structure of a combined sleeve valve, which belongs to the technical field of sleeve valves and comprises a left valve sleeve section and a right valve sleeve section, wherein a stepped pipe which is coaxially arranged is fixedly arranged at one end of the right valve sleeve section, which is close to the left valve sleeve section, the inner diameter of the stepped pipe is identical to that of the right valve sleeve section, the left valve sleeve section and the stepped pipe are in sliding sleeve joint, a threaded body is fixedly arranged on the outer wall of a section of the stepped pipe, which is close to the right valve sleeve section, the left valve sleeve section is in threaded connection with the right valve sleeve section through the threaded body, flexible raised strips matched with the stepped pipe are fixedly arranged on the inner wall of the left valve sleeve section, a supporting ring is fixedly arranged on the outer wall of the circumference of the left valve sleeve section, and a plurality of limiting mechanisms for fixing the stepped pipe are arranged between the supporting ring and the left valve sleeve section. The utility model improves the connection strength between the right section of the valve sleeve and the left section of the valve sleeve, improves the tightness of the valve sleeve, and is suitable for popularization.

Description

Sealing structure of combined sleeve valve

Technical Field

The utility model relates to the technical field of sleeve valves, in particular to a sealing structure of a combined sleeve valve.

Background

The valve sleeve has the characteristics of small volume and high precision, is an indispensable component in the working process of the engine, and has the effect of reducing the production cost of the engine.

Chinese patent publication No.: (CN 213271329U) discloses a combination formula valve pocket, including valve pocket left segment, valve pocket middle section and valve pocket right side section, the even body shaping in valve pocket middle section left and right sides is connected with the external screw thread section, the mounting groove has all been seted up to valve pocket left segment and valve pocket right side section inner wall and towards one side in valve pocket middle section, the mounting groove inner wall is equipped with the first internal thread with external screw thread section assorted, the sealing washer has been cup jointed to one side near the valve pocket middle section on the external screw thread section. The valve sleeve adopts a combined structure, the sealing ring is sleeved on the external thread cylinder, the left section of the valve sleeve and the right section of the valve sleeve are respectively in threaded connection with the external thread cylinder at the left side and the right side, so that the left section of the valve sleeve, the middle section of the valve sleeve and the right section of the valve sleeve are combined and connected, the valve sleeve is convenient to process, the sealing function is realized through the sealing ring, and the tightness between the middle section of the valve sleeve and the left section of the valve sleeve and the right section of the valve sleeve is improved.

For the above related art, there is a certain disadvantage, for example, in the use process of the combined valve sleeve, the combined valve sleeve is generally connected through threads, and is matched with a sealing ring for sealing, so that the sealing ring is easy to wear and loose along with long-time vibration of an engine, and the sealing failure is caused by the easy loosening of a threaded structure, so in order to solve the problem, we propose a sealing structure of the combined valve sleeve.

Disclosure of Invention

In order to solve the problems, the utility model provides a sealing structure of a combined sleeve valve, which adopts the following technical scheme:

the utility model provides a seal structure of combination sleeve valve, includes valve pocket left segment and valve pocket right segment, the valve pocket right segment is close to the fixed mounting of one end of valve pocket left segment and is the ladder pipe that coaxial setting, the internal diameter of ladder pipe is the same setting with the internal diameter of valve pocket right segment, valve pocket left segment and ladder pipe are the slip and cup joint the setting, a section body outer wall fixed mounting that the ladder pipe is close to valve pocket right segment has the screw thread body, valve pocket left segment is threaded connection through the screw thread body and valve pocket right segment, the inner wall fixed mounting of valve pocket left segment has with ladder pipe assorted flexible sand grip, the circumference outer wall fixed mounting of valve pocket left segment has the holding ring, be provided with a plurality of stop gears that are used for fixed ladder pipe between holding ring and the valve pocket left segment.

Preferably, the inner wall of the left section of the valve sleeve is provided with a thread groove matched with the thread body.

Preferably, the flexible raised strips are made of rubber, and the sections of the flexible raised strips are arranged in a semicircular mode.

Preferably, an arc-shaped groove is formed in the outer wall of a section of the pipe body, far away from the right section of the valve sleeve, of the stepped pipe, and the arc-shaped groove is matched with the flexible raised strips.

Preferably, the limiting mechanism comprises a stud, the stud penetrates through the outer wall of the supporting ring and is in threaded connection with the left section of the valve sleeve, the supporting ring is in penetrating and sliding connection with the left section of the valve sleeve, a limiting groove is formed in the outer wall of a section of the pipe body, far away from the right section of the valve sleeve, of the stepped pipe, the limiting groove is matched with the stud, the limiting groove is located on one side, close to the right section of the valve sleeve, of the arc groove, and a hand wheel is fixedly mounted at one end, far away from the stepped pipe, of the stud.

In summary, the utility model has the following beneficial technical effects:

through the installation to valve pocket left segment and valve pocket right side section, be connected valve pocket right side section through the ladder pipe with valve pocket left Duan Luowen, flexible sand grip and arc wall laminating each other have improved the leakproofness of valve pocket, rotate stop gear then, fix the ladder pipe, improved the joint strength between valve pocket right side section and the valve pocket left side section.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a mounting block diagram of an arcuate slot of the present utility model;

fig. 3 is a mounting structure diagram of the limit mechanism of the present utility model.

The reference numerals in the figures illustrate:

1. a left section of the valve sleeve; 2. a right section of the valve sleeve; 3. a step pipe; 4. a screw body; 5. a thread groove; 6. a flexible raised strip; 7. an arc-shaped groove; 8. a support ring; 9. a stud; 10. a limit groove; 11. and a hand wheel.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model is described in further detail below with reference to fig. 1-3.

Referring to fig. 1-3, a sealing structure of a combined sleeve valve comprises a left valve sleeve section 1 and a right valve sleeve section 2, wherein a stepped pipe 3 which is coaxially arranged is fixedly arranged at one end, close to the left valve sleeve section 1, of the right valve sleeve section 2, the inner diameter of the stepped pipe 3 is identical to that of the right valve sleeve section 2, the left valve sleeve section 1 and the stepped pipe 3 are in sliding sleeve joint, a threaded body 4 is fixedly arranged on the outer wall of a section of the stepped pipe 3, close to the right valve sleeve section 2, the left valve sleeve section 1 is in threaded connection with the right valve sleeve section 2 through the threaded body 4, a threaded groove 5 matched with the threaded body 4 is formed in the inner wall of the left valve sleeve section 1, a flexible raised strip 6 matched with the stepped pipe 3 is fixedly arranged on the inner wall of the left valve sleeve section 1, the flexible raised strip 6 is made of rubber, the section of the flexible raised strip 6 is in a semicircle, an arc groove 7 is arranged on the outer wall of a section of the pipe body of the step pipe 3 far away from the valve sleeve right section 2, the arc groove 7 is matched with a flexible raised strip 6, the connection strength between the valve sleeve left section 1 and the valve sleeve right section 2 is improved, a supporting ring 8 is fixedly arranged on the circumferential outer wall of the valve sleeve left section 1, the valve sleeve right section 1 has a supporting function, a plurality of limiting mechanisms for fixing the step pipe 3 are arranged between the supporting ring 8 and the valve sleeve left section 1, each limiting mechanism comprises a stud 9, the stud 9 penetrates through and is in threaded connection with the outer wall of the supporting ring 8, the supporting ring 8 is in penetrating and sliding connection with the valve sleeve left section 1, a limiting groove 10 is arranged on the outer wall of the section of the pipe body of the step pipe 3 far away from the valve sleeve right section 2, the limiting groove 10 is matched with the stud 9, the limiting groove 10 is positioned on one side of the arc groove 7 close to the valve sleeve right section 2 and has a limiting function, a hand wheel 11 is fixedly arranged at one end of the stud 9 far away from the stepped pipe 3.

The implementation principle of the embodiment of the utility model is as follows: the right valve sleeve section 2 is in threaded connection with the left valve sleeve section 1 through the stepped pipe 3, the flexible raised strips 6 are mutually attached to the arc-shaped grooves 7, the sealing performance of the valve sleeve is improved, then the hand wheel 11 is rotated, the stud 9 is inserted into the limit groove 10 in a rotating mode, and the connection strength between the right valve sleeve section 2 and the left valve sleeve section 1 is improved.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (5)

1. The utility model provides a seal structure of combination sleeve valve, includes valve pocket left segment (1) and valve pocket right segment (2), its characterized in that: the novel valve sleeve comprises a valve sleeve right section (2), wherein one end of the valve sleeve right section (2) close to the valve sleeve left section (1) is fixedly provided with a stepped pipe (3) which is coaxially arranged, the inner diameter of the stepped pipe (3) is identical to the inner diameter of the valve sleeve right section (2), the valve sleeve left section (1) and the stepped pipe (3) are in sliding sleeve connection, the outer wall of a section of pipe body of the stepped pipe (3) close to the valve sleeve right section (2) is fixedly provided with a threaded body (4), the valve sleeve left section (1) is in threaded connection with the valve sleeve right section (2) through the threaded body (4), the inner wall of the valve sleeve left section (1) is fixedly provided with a flexible raised strip (6) which is matched with the stepped pipe (3), the outer wall of the circumference of the valve sleeve left section (1) is fixedly provided with a supporting ring (8), and a plurality of limiting mechanisms for fixing the stepped pipe (3) are arranged between the supporting ring (8) and the valve sleeve left section (1).

2. The sealing structure of a combination valve as claimed in claim 1, wherein: the inner wall of the left valve sleeve section (1) is provided with a thread groove (5) matched with the thread body (4).

3. The sealing structure of a combination valve as claimed in claim 1, wherein: the flexible raised strips (6) are made of rubber, and the sections of the flexible raised strips (6) are arranged in a semicircular mode.

4. The sealing structure of a combination valve as claimed in claim 1, wherein: the outer wall of a section of the pipe body, far away from the right section (2) of the valve sleeve, of the stepped pipe (3) is provided with an arc-shaped groove (7), and the arc-shaped groove (7) is matched with the flexible raised strip (6).

5. The sealing structure of a combination valve as defined in claim 4, wherein: the limiting mechanism comprises a stud (9), the stud (9) penetrates through and is in threaded connection with the outer wall of the supporting ring (8), the supporting ring (8) penetrates through and is in sliding connection with the left valve sleeve section (1), a limiting groove (10) is formed in the outer wall of a section of the pipe body, away from the right valve sleeve section (2), of the stepped pipe (3), the limiting groove (10) is matched with the stud (9), the limiting groove (10) is located on one side, close to the right valve sleeve section (2), of the arc-shaped groove (7), and a hand wheel (11) is fixedly mounted at one end, away from the stepped pipe (3), of the stud (9).