Novel mechanical sealing structure

Abstract

The utility model discloses a novel mechanical sealing structure, and relates to the technical field of sealing. The pipe joint comprises a pipe end to be connected, an inner connecting pipe, an outer sleeve, an inner seal and a push ring, a machine connecting seat is arranged at one end of the inner connecting pipe, the inner connecting pipe and the outer sleeve are integrally provided with flanges and are concentrically connected through bolts, the inner seal comprises a hard core ring, an embedded groove is formed in one side of the hard core ring, and a convex ring part is arranged on the inner side of the other side of the hard core ring. By designing the novel sealing structure, the connection sealing between the pipe end to be connected and the inner connecting pipe can be realized through the matching of the inner seal and the sealing ring, the connection sealing between the outer sleeve and the inner connecting pipe can be realized through the matching of the inner seal, the push ring and the sealing mechanism, the sealing effect is better, and meanwhile, if the loosening condition occurs, the sealing effect is better. The sealing effect between the push ring and the inner seal can be continuously maintained through the elastic force of the spring, and the sealing effect of the sealing point is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sealing technical field, especially a kind of novel mechanical seal structure. BACKGROUND

[0002] Whether it is chemical, pharmaceutical or food industry, whether it is vertical equipment or horizontal equipment, mechanical seal is needed in all equipment involving dynamic and static seal, and mechanical seal is sealed by the fit of two end faces with extremely high machining precision, so its sealing effect on solid materials is not good, and solid materials will gradually enter the two end faces with extremely high machining precision, thereby destroying its sealing effect, and mechanical seal is very reliable in the case of liquid material in the equipment, but the current sealing mechanism will cause the seal to loosen when used, resulting in poor sealing effect. SUMMARY

[0003] The utility model discloses a kind of novel mechanical seal structure, by design novel sealing structure, the cooperation of inner seal and sealing ring can realize the connection sealing between the pipe end to be connected and inner connecting pipe, the cooperation of inner seal, push ring and sealing mechanism can realize the connection sealing between outer sleeve pipe and inner connecting pipe, sealing effect is better, simultaneously, if loosen condition appears, the sealing effect between push ring and inner seal can be continued by the elastic force of spring, greatly improve the sealing effect of sealing point.

[0004] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0005] The utility model discloses a kind of novel mechanical seal structure, including pipe end to be connected, inner connecting pipe, outer sleeve pipe, inner seal and push ring;

[0006] The inner connecting pipe one end is equipped with machine connection seat, and the inner connecting pipe and outer sleeve pipe are integrally equipped with flange and are connected concentrically by bolt;

[0007] The inner seal includes hard core ring, one side of the hard core ring is equipped with inner embedding groove, the inner side of the other side of the hard core ring is equipped with convex ring part, and the outer surface of the hard core ring, inner embedding groove and convex ring part is equipped with sealing layer;

[0008] The inner seal is fixed in the inner connecting pipe inside one end close to flange, the convex ring part and the inner wall between the inner connecting pipe form rear insertion groove, the pipe end to be connected end is equipped with sealing ring, and the pipe end to be connected is inserted and connected and is set in rear insertion groove;

[0009] The push ring is concentrically and slidably arranged in the inner connecting pipe, one surface of the push ring is equipped with gap and is arranged in the inner ring edge of inner embedding groove, and the other surface of the push ring and the end face of outer sleeve pipe are equipped with elastic mechanism;

[0010] The elastic mechanism comprises an outer ring body and an inner ring body, both of which are C-shaped in cross section, the inner ring body is arranged in the outer ring body in an extendible manner, a sealed cavity is formed between the inner ring body and the outer ring body, and a plurality of springs are fixed in the sealed cavity in a ring-shaped and uniform interval.

[0011] Further, the outer sleeve is provided with a flange portion near one end of the flange, and the flange portion is arranged in a gap in the inner end portion of the inner connecting pipe.

[0012] Further, the side plate edge of the outer ring body is fixed to the inner side of the flange portion, and the side plate edge of the inner ring body is fixed to the surface of the push ring.

[0013] Further, the inner diameter of the outer sleeve is consistent with the inner diameter of the flange portion, and the inner diameter of the outer sleeve is larger than the inner diameter of the inner connecting pipe.

[0014] Further, a plurality of mounting ports are arranged on the machine connecting seat.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses a novel sealing structure, and the cooperation of the inner seal and the sealing ring can realize the connection sealing between the pipe end to be connected and the inner connecting pipe, the cooperation of the inner seal, the push ring and the sealing mechanism can realize the connection sealing between the outer sleeve and the inner connecting pipe, the sealing effect is better, and if loosening occurs, the sealing effect between the push ring and the inner seal can be continuously maintained through the elastic force of the spring, the sealing effect of the sealing point is greatly improved, the leakage is prevented, and the use effect of the whole machine is improved.

[0017] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0019] Figure 1 It is a structural schematic view of a novel mechanical sealing structure of the utility model;

[0020] Figure 2 It is a structural schematic view of the utility model after cutting half;

[0021] Figure 3 It is Figure 2 It is a local enlarged view of A in the middle;

[0022] The components represented by the numbers in the drawings are listed as follows:

[0023] 1 - to be connected to the end, 2 - inner connecting pipe, 3 - outer sleeve, 4 - inner seal, 5 - push ring, 6 - elastic mechanism, 101 - sealing ring, 201 - machine connecting seat, 202 - flange, 301 - flange part, 401 - hard core ring, 402 - embedded groove, 403 - convex ring part, 404 - sealing layer, 501 - inner ring edge, 601 - outer ring body, 602 - inner ring body, 603 - spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to Figures 1-3 The utility model discloses a novel mechanical seal structure, including to be connected to the end 1, inner connecting pipe 2, outer sleeve 3, inner seal 4 and push ring 5.

[0026] One end of the inner connecting pipe 2 is provided with a machine connecting seat 201, and the inner connecting pipe 2 and the outer sleeve 3 are integrally provided with a flange 202 and are connected concentrically by bolts.

[0027] The inner seal 4 includes a hard core ring 401, one side of the hard core ring 401 is provided with an embedded groove 402, the inner side of the other side of the hard core ring 401 is provided with a convex ring part 403, and the outer surfaces of the hard core ring 401, the embedded groove 402 and the convex ring part 403 are provided with a sealing layer 404.

[0028] The inner seal 4 is fixed inside the inner connecting pipe 2 close to the flange 202, a rear insertion groove is formed between the convex ring part 403 and the inner wall of the inner connecting pipe 2, the end part of the to-be-connected pipe end 1 is provided with a sealing ring 101, and the to-be-connected pipe end 1 is inserted and arranged in the rear insertion groove.

[0029] The push ring 5 is concentrically and slidably arranged in the inner connecting pipe 2, one surface of the push ring 5 is provided with an inner ring edge 501 arranged in the embedded groove 402 in a gap, and the other surface of the push ring 5 and the end face of the outer sleeve 3 are provided with an elastic mechanism 6.

[0030] The elastic mechanism 6 includes an outer ring body 601 and an inner ring body 602, both of which are C-shaped structures in cross section, the inner ring body 602 is telescopically arranged in the outer ring body 601, a sealing cavity is formed between the inner ring body 602 and the outer ring body 601, and a plurality of springs 603 are fixed in the sealing cavity in a ring shape and at uniform intervals.

[0031] Among them, as Figures 2-3As shown, the outer sleeve 3 has a flange 301 at one end near the flange 202, and the flange 301 is spaced at the inner end of the inner connecting pipe 2.

[0032] Among them, such as Figures 1-3 As shown, the side plate edge of the outer ring body 601 is fixed to the inner side of the flange portion 301, and the side plate edge of the inner ring body 602 is fixed to the surface of the push ring 5.

[0033] Among them, such as Figures 1-2 As shown, the inner diameter of the outer sleeve 3 is the same as the inner diameter of the flange 301, and the inner diameter of the outer sleeve 3 is larger than the inner diameter of the inner connecting pipe 2.

[0034] Among them, such as Figures 1-2 As shown, the machine connector 201 has several mounting ports.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel mechanical seal structure, characterized in that: It includes the pipe end to be connected (1), inner connecting pipe (2), outer casing (3), inner seal (4) and push ring (5); The inner connecting pipe (2) is provided with a machine connecting seat (201) at one end. The inner connecting pipe (2) and the outer casing (3) are both provided with flanges (202) and are concentrically connected by bolts. The inner seal (4) includes a hard core ring (401), an inner groove (402) is provided on one side of the hard core ring (401), a convex ring portion (403) is provided on the inner side of the other side of the hard core ring (401), and a sealing layer (404) is provided on the outer surface of the hard core ring (401), the inner groove (402) and the convex ring portion (403). The inner seal (4) is fixed inside the inner connecting pipe (2) near the flange (202). The convex ring (403) forms a rear slot with the inner wall of the inner connecting pipe (2). The end of the pipe to be connected (1) is provided with a sealing ring (101). The end of the pipe to be connected (1) is inserted into the rear slot. The push ring (5) is concentrically and slidably disposed in the inner connecting tube (2). One surface of the push ring (5) is provided with a gap disposed on the inner ring edge (501) of the inner groove (402). An elastic mechanism (6) is provided between the other surface of the push ring (5) and the end face of the outer tube (3). The elastic mechanism (6) includes an outer ring body (601) and an inner ring body (602) with a C-shaped cross-section. The inner ring body (602) is telescopically disposed inside the outer ring body (601). A sealed cavity is formed between the inner ring body (602) and the outer ring body (601). Several springs (603) are fixed in the sealed cavity in a ring-shaped and evenly spaced manner.

2. The novel mechanical seal structure according to claim 1, characterized in that, The outer sleeve (3) has a flange (301) at one end near the flange (202), and the flange (301) is spaced at the inner end of the inner connecting pipe (2).

3. The novel mechanical seal structure according to claim 2, characterized in that, The side plate edge of the outer ring body (601) is fixed to the inside of the flange portion (301), and the side plate edge of the inner ring body (602) is fixed to the surface of the push ring (5).

4. The novel mechanical seal structure according to claim 3, characterized in that, The inner diameter of the outer sleeve (3) is the same as the inner diameter of the flange (301), and the inner diameter of the outer sleeve (3) is larger than the inner diameter of the inner connecting tube (2).

5. The novel mechanical seal structure according to claim 1, characterized in that, The machine connector (201) is provided with several mounting ports.

Images