CN219530080U - Pipeline sealing piece and lower-in lower-out split cabinet - Google Patents

Abstract

The utility model provides a pipeline sealing piece and a lower-in lower-out flow dividing cabinet, and belongs to the field of manufacturing of fluid conveying equipment. The pipeline sealing element comprises a nut, a first clamping ring, a second clamping ring and a sealing element body. The inner wall of the nut, which is close to one end of the first pipeline, is provided with a supporting part, and the inner wall of the other end of the nut is provided with an internal thread; the first clamping ring is detachably accommodated in the nut, and one end, close to the nut, of the first clamping ring is configured to be capable of being in sealing abutting connection with the abutting part; the second clamping ring is used for being close to one end of the first clamping ring and is configured to be capable of accommodating and sealing against one end of the first clamping ring away from the nut; the sealing member body is used for being close to the one end of second snap ring and is configured as can detachably hold and seal the butt second snap ring, and the outer wall that the sealing member body is close to the one end of second snap ring is provided with the external screw thread, and the external screw thread is used for with internal screw thread threaded connection, can improve the inconvenient problem of carrying out industrial manufacturing that the pipeline sealing member exists through this pipeline sealing member to a certain extent.

Description

Pipeline sealing piece and lower-in lower-out split cabinet

Technical Field

The utility model relates to the field of manufacturing of fluid conveying equipment, in particular to a pipeline sealing piece and a lower-in lower-out flow dividing cabinet.

Background

In the prior art, a plurality of pipeline connecting parts generally exist in fluid conveying equipment, and in order to effectively reduce the leakage risk of the pipeline connecting parts, pipeline sealing parts are generally arranged in corresponding areas, however, the pipeline sealing parts with the prior structure have the problem of inconvenient industrial manufacture.

Disclosure of Invention

The utility model aims to provide a pipeline sealing member and a lower-in lower-out flow dividing cabinet, which can solve the problem that the pipeline sealing member is inconvenient to industrially manufacture to a certain extent.

Embodiments of the present utility model are implemented as follows:

in a first aspect, an embodiment of the present utility model provides a pipe seal, including a nut, a first snap ring, a second snap ring, and a seal body. One end of the nut is used for being communicated with the first pipeline, an abutting part is arranged on the inner wall of one end of the nut, which is close to the first pipeline, and an inner thread is arranged on the inner wall of the other end of the nut; the first clamping ring is configured to be detachably accommodated in the nut, and one end, close to the nut, of the first clamping ring is configured to be capable of being in sealing abutting connection with the abutting part; the second clamping ring is used for being close to one end of the first clamping ring and is configured to be capable of accommodating and sealing against one end of the first clamping ring away from the nut; the sealing member body is used for being close to the one end of second snap ring and is configured to can detachably hold and seal the butt second snap ring, and the outer wall that the sealing member body is close to the one end of second snap ring is provided with the external screw thread, and the external screw thread is used for with internal thread threaded connection, and the other end of sealing member body is used for with the second pipeline intercommunication.

In the above technical scheme, the pipeline sealing member comprises a nut, a first clamping ring, a second clamping ring and a sealing member body, wherein the first clamping ring is used for being in sealing abutting fit with the nut, the second clamping ring is used for being in abutting fit with the sealing member body, and then the abutting fit of the first clamping ring and the second clamping ring is combined to achieve the pipeline sealing function.

In some alternative embodiments, the inner diameter of the second snap ring increases gradually from an end distal from the first snap ring to an end proximal to the first snap ring in the region where the first snap ring and the second snap ring correspond, and the inner diameter of the end of the second snap ring distal from the first snap ring corresponds to the outer diameter of the first snap ring.

According to the technical scheme, the section of the inner wall, close to the first clamping ring, of the second clamping ring is arranged to be in a horn mouth shape, so that one end, close to the second clamping ring, of the first clamping ring can be conveniently and detachably accommodated in the second clamping ring and is in sealing abutting connection with the second clamping ring; the inner diameter of one end, far away from the first clamping ring, of the second clamping ring is set to correspond to the outer diameter of the first clamping ring, so that the sealing and abutting function of the second clamping ring and the first clamping ring can be realized conveniently.

In some alternative embodiments, the outer wall of the first snap ring near one end of the second snap ring is further provided with a protrusion, and the shape of one side of the protrusion near the inner wall of the second snap ring corresponds to the shape of the inner wall of the second snap ring, so that the protrusion is in sealing abutment with the inner wall of the second snap ring.

In the above technical scheme, the outer wall of the first snap ring is additionally provided with the bulge, one side of the bulge, which is close to the inner wall of the second snap ring, is arranged to correspond to the shape of the inner wall of the second snap ring, and compared with the situation that the abutting area exists at the end part of the first snap ring and the second snap ring, the abutting area of the first snap ring and the second snap ring can be increased, so that the abutting tightness of the first snap ring and the second snap ring is improved.

In some alternative embodiments, a plurality of protrusions are arranged on the outer wall of the first snap ring at intervals in the axial direction of the second snap ring, and the shape of one side, close to the inner wall of the second snap ring, of each protrusion corresponds to the shape of the inner wall in the corresponding area of the second snap ring, so that each protrusion is in sealing abutting joint with the inner wall of the second snap ring.

According to the technical scheme, the plurality of protrusions are arranged, one sides, close to the inner walls of the second clamping rings, of the plurality of protrusions are respectively arranged to correspond to the inner wall shape in the corresponding area of the second clamping rings, the abutting area of the first clamping rings and the abutting area of the second clamping rings can be further improved, and therefore abutting tightness of the first clamping rings and the abutting tightness of the second clamping rings are further improved.

In some alternative embodiments, the protrusion extends in an axial direction of the second snap ring in a region corresponding to the first snap ring and the second snap ring from an end of the first snap ring remote from the second snap ring to an end near the second snap ring.

In the above technical scheme, the outer wall of the first snap ring is additionally provided with the bulge, and the bulge is arranged to extend from one end far away from the second snap ring to one end close to the second snap ring, which is equivalent to the sealing butt of the whole side wall of the first snap ring and the second snap ring in the corresponding area, and compared with the butt area of the first snap ring and the second snap ring only existing at the end part of the first snap ring, the butt area of the first snap ring and the second snap ring can be obviously increased, so that the butt tightness of the first snap ring and the second snap ring is greatly improved.

In some alternative embodiments, the abutment extends in the circumferential direction of the nut, and in the axial direction of the nut, a side surface of the abutment for approaching the first snap ring is a plane.

In the above-mentioned technical scheme, will support and hold the portion and set up to a complete ring to be used for being close to one side surface that holds the portion and set up to the plane, be convenient for realize first snap ring and support the sealed butt of portion of holding, simultaneously, the portion of holding of this form still has simple structure and is convenient for carry out industrial manufacturing's advantage.

In some alternative embodiments, the forward projection of the first snap ring is located within the forward projection of the abutment in the axial direction of the nut.

According to the technical scheme, the orthographic projection of the first clamping ring in the axial direction of the nut is arranged to be located in the orthographic projection of the abutting portion, so that the end wall, close to the abutting portion, of the first clamping ring is basically in complete abutting connection with the abutting portion, and the tightness of the first clamping ring and the abutting portion during abutting connection is further improved.

In some alternative embodiments, the abutment is spaced from the thread segments by a distance L1 in the axial direction of the nut, the thread segments being of a dimension L2, the ratio of L1 to L2 being 1: (1-3).

In the technical scheme, the dimension ratio of the threaded section and the non-threaded section of the inner wall of the nut in the axial direction of the nut is limited in a specific range, so that the nut and the sealing element body have proper matching dimensions, and the connection stability of the nut and the sealing element body and the tightness during connection are improved.

In some alternative embodiments, the outer diameter of the second snap ring gradually decreases from an end distal to the seal body to an end proximal to the seal body in a region corresponding to the second snap ring and the seal body, and the shape of the inner wall of the seal body corresponds to the shape of the outer wall of the second snap ring.

Among the above-mentioned technical scheme, all set up the outer wall of second snap ring and the inner wall of sealing member body into the horn mouth shape, be convenient for realize that second snap ring detachably holds in the sealing member body and rather than sealed butt, simultaneously, this setting still makes the two possess great butt area in corresponding region to help improving the leakproofness when two butt.

In a second aspect, embodiments of the present utility model provide a lower entry lower exit diverter cabinet comprising a cabinet body, a dental fitting, and a duct seal as provided in the embodiments of the first aspect. The bottom wall of the cabinet body is provided with a through hole; the tooth connector is connected with the cabinet body and penetrates through the through hole, and one end of the tooth connector, which is positioned outside the cabinet body, is used for being communicated with the liquid supply pipeline; the pipe seal is located in the cabinet body, and an end of the seal body for communicating with the second pipe is configured to be capable of communicating with an end of the tooth fitting located in the cabinet body.

Among the above-mentioned technical scheme, the diapire through-hole department of the reposition of redundant personnel cabinet of lower business turn over is provided with the pipeline sealing member as provided by the embodiment of first aspect, can effectively reduce the pipeline of through-hole department butt joint and take place the risk of weeping, and then effectively reduce the risk that the chemical leaked the cabinet body from the through-hole department gap to improve the reposition of redundant personnel cabinet of business turn over under to a certain extent and appear the weeping easily and cause environmental pollution scheduling problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a split structure of a pipe seal according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the pipe seal of FIG. 1 after assembly;

fig. 3 is an abutting schematic diagram of a first clamp ring and a second clamp ring in a first form according to an embodiment of the present utility model;

fig. 4 is a schematic view of an abutting connection between a first snap ring and a second snap ring according to a second form provided by an embodiment of the present utility model;

fig. 5 is a schematic view of an abutting connection between a first snap ring and a second snap ring in a third form according to an embodiment of the present utility model;

fig. 6 is a schematic view of an abutting connection between a first snap ring and a second snap ring in a fourth form according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of an abutting portion according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a lower-in lower-out splitter cabinet according to an embodiment of the present utility model.

Icon: 10-pipe seals; 100-nuts; 110-a holding part; 120-internal threads; 200-a first clamping ring; 210-bump; 300-a second snap ring; 310-inner wall; 320-outer wall; 400-seal body; 410-external threads; 1-a lower inlet and lower outlet split cabinet; a 20-tooth joint; 30-cabinet body.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those conventionally put in use in the application, are merely for convenience of description and simplification of 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 merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally 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.

In the prior art, pipeline sealing elements are usually needed at the pipeline butt joint position, the current pipeline sealing elements usually comprise nuts, clamping rings and sealing element bodies, wherein the nuts and the sealing element bodies are respectively used for communicating two sections of pipelines, the two sections of pipelines are connected and sealed through mutual butt joint of the nuts and the sealing element bodies, however, the process of processing one clamping ring which can be simultaneously in sealing butt joint with the nut ends and the sealing element bodies is difficult because the structures of the nut ends and the sealing element bodies are different, accordingly, the requirements on the structures of the two ends of the clamping rings are different for meeting the function of simultaneously sealing butt joint with two different structures, and the clamping rings are smaller in size.

Based on this, the inventors studied to find that: based on the structural characteristics of the nut end and the sealing member body end, a clamping ring which can be matched with the respective structure in a butt joint mode is correspondingly arranged respectively, namely, a complex structure is split into two simple structures, and the industrial preparation difficulty of the clamping ring can be reduced.

Referring to fig. 1 and 2, in a first aspect, an embodiment of the present utility model provides a pipe seal 10 including a nut 100, a first snap ring 200, a second snap ring 300, and a seal body 400. One end of the nut 100 is used for communicating with the first pipeline, an abutting part 110 is arranged on an inner wall 310 of the nut 100 close to one end of the first pipeline, and an inner thread 120 is arranged on the inner wall 310 of the other end of the nut 100; the first snap ring 200 is configured to be detachably accommodated in the nut 100, and an end of the first snap ring 200 near the nut 100 is configured to be capable of sealing abutment with the abutment 110; the end of the second snap ring 300, which is close to the first snap ring 200, is configured to be able to receive and seal against the end of the first snap ring 200, which is far from the nut 100; the seal body 400 is configured to detachably receive and seal against the second snap ring 300 near one end of the second snap ring 300, and the outer wall 320 of the seal body 400 near one end of the second snap ring 300 is provided with external threads 410, the external threads 410 are configured to be in threaded connection with the internal threads 120, and the other end of the seal body 400 is configured to be in communication with a second pipeline.

It should be noted that, the communication manner between the first pipe and the nut 100 and the communication manner between the second pipe and the seal body 400 are not limited, and may be selected according to the conventional method in the art.

In the present utility model, the pipe sealing element 10 includes the nut 100, the first snap ring 200, the second snap ring 300 and the sealing element body 400, wherein the first snap ring 200 is used for sealing and abutting matching with the nut 100, the second snap ring 300 is used for abutting matching with the sealing element body 400, and then the abutting matching of the first snap ring 200 and the second snap ring 300 can realize the pipe sealing function.

For a better understanding of the solution, the abutting sealing process of the pipe seal 10 is described here: one end of the first snap ring 200, which is close to the second snap ring 300, is abutted against the inner wall 310 of the second snap ring 300, then, the abutted first snap ring 200 and second snap ring 300 are put into the nut 100, then, the sealing member body 400 is screwed with the nut 100, the abutting portion 110 in the first snap ring 200 and the nut 100, the first snap ring 200 and the second snap ring 300 are sealed, and the second snap ring 300 and the sealing member body 400 are in sealing abutment in sequence in the screwing process.

When the first snap ring 200 is in sealing contact with the second snap ring 300, the first snap ring 200 may be just received in the second snap ring 300 (i.e., one ends of the first snap ring 200 and the second snap ring 300 near the nut 100 are substantially flush during contact), or a portion of the first snap ring 200 may be located outside the second snap ring 300 during contact.

The form of the section of the second snap ring 300 adjacent to the first snap ring 200 is not limited as long as the function of sealing contact with the first snap ring 200 can be achieved.

Referring to fig. 3, as an example, in the region where the first snap ring 200 and the second snap ring 300 correspond, the inner diameter of the second snap ring 300 gradually increases from one end far from the first snap ring 200 to one end near the first snap ring 200, and the inner diameter of one end of the second snap ring 300 far from the first snap ring 200 corresponds to the outer diameter of the first snap ring 200.

In this embodiment, a section of the inner wall 310 of the second snap ring 300, which is close to the first snap ring 200, is provided with a bell mouth shape, so that the end of the first snap ring 200, which is close to the second snap ring 300, is detachably accommodated in the second snap ring 300 and is in sealing abutment with the second snap ring 300; the inner diameter of the end of the second snap ring 300 away from the first snap ring 200 is set to correspond to the outer diameter of the first snap ring 200, so as to facilitate the sealing and abutting function of the second snap ring 300 and the first snap ring.

It should be noted that the form of the remaining inner wall 310 of the second snap ring 300 in the axial direction is not limited, and may be adjusted according to actual needs.

As an example, the inner wall 310 of the second snap ring 300 gradually increases from one end far from the first snap ring 200 to one end near the first snap ring 200 (i.e., the inner wall 310 of the second snap ring 300 is overall horn-shaped).

In this embodiment, the inner wall 310 of the second snap ring 300 is entirely horn-shaped, because this form of the second snap ring 300 has advantages of a relatively simple structure and convenience in industrial manufacturing.

It can be appreciated that the larger the contact area between the first snap ring 200 and the second snap ring 300 is, the better the contact tightness between the two is, and the structure of the first snap ring 200 can be adjusted in consideration of the contact tightness between the two.

Referring to fig. 4, as an example, the outer wall 320 of the first snap ring 200 near one end of the second snap ring 300 is further provided with a protrusion 210, and a shape of one side of the protrusion 210 near the inner wall 310 of the second snap ring 300 corresponds to a shape of the inner wall 310 of the second snap ring 300, so that the protrusion 210 is in sealing abutment with the inner wall 310 of the second snap ring 300.

In this embodiment, the protrusion 210 is added to the outer wall 320 of the first snap ring 200, and the side of the protrusion 210 near the inner wall 310 of the second snap ring 300 is configured to correspond to the shape of the inner wall 310 of the second snap ring 300, so that the contact area between the first snap ring 200 and the second snap ring 300 can be increased, and the contact tightness between the two can be improved, compared to the case where the first snap ring 200 and the second snap ring 300 only have contact areas at the ends of the first snap ring 200.

Referring to fig. 5, as an example, in the axial direction of the second snap ring 300, a plurality of protrusions 210 are provided at intervals on the outer wall 320 of the first snap ring 200, and the shape of one side of the plurality of protrusions 210 near the inner wall 310 of the second snap ring 300 corresponds to the shape of the inner wall 310 in the corresponding region of the second snap ring 300, respectively, so that each protrusion 210 is in sealing abutment with the inner wall 310 of the second snap ring 300, respectively.

It should be noted that, in the axial direction of the second snap ring 300, the distance between any two adjacent protrusions 210 is not limited, and may be adjusted according to actual needs.

In this embodiment, the plurality of protrusions 210 are provided, and the side of the plurality of protrusions 210 close to the inner wall 310 of the second snap ring 300 is provided to correspond to the shape of the inner wall 310 in the area corresponding to the second snap ring 300, respectively, so that the contact area between the first snap ring 200 and the second snap ring 300 can be further increased, and the contact tightness between the two can be further improved.

It will be appreciated that in addition to increasing the number of protrusions 210, the position and size of the individual protrusions 210 may be adjusted in order to achieve a larger abutment area.

Referring to fig. 6, as an example, in the axial direction of the second snap ring 300 in the areas corresponding to the first snap ring 200 and the second snap ring 300, the protrusion 210 extends from an end of the first snap ring 200 away from the second snap ring 300 to an end near the second snap ring 300.

In this embodiment, the protrusion 210 is added to the outer wall 320 of the first snap ring 200, and the protrusion 210 is configured to extend from one end far from the second snap ring 300 to one end close to the second snap ring 300, which is equivalent to sealing and abutting the entire side wall of the first snap ring 200 and the second snap ring 300 in the corresponding area, and compared with the case that the first snap ring 200 and the second snap ring 300 only have the abutting area at the end of the first snap ring 200, the abutting area of the first snap ring 200 and the second snap ring 300 can be significantly increased, thereby greatly improving the abutting tightness of the two.

It should be noted that the form of the abutment portion 110 is not limited, and may be set according to a conventional selection in the art.

Referring to fig. 7, as an example, the abutting portion 110 extends along the circumferential direction of the nut 100, and in the axial direction of the nut 100, a side surface of the abutting portion 110 adjacent to the first snap ring 200 is a plane.

In this embodiment, the abutting portion 110 is configured as a complete ring, and a side surface of the abutting portion 110, which is close to the first snap ring 200, is configured as a plane, so that sealing and abutting between the first snap ring 200 and the abutting portion 110 are facilitated, and meanwhile, the abutting portion 110 in this form has the advantages of simple structure and convenience in industrial manufacturing.

It will be appreciated that the larger the abutting area of the nut 100 and the first snap ring 200, the better the abutting sealability of the two, and the relative cross-sectional dimensions of the two may be adjusted in consideration of the abutting sealability of the two.

As an example, in the axial direction of the nut 100, the orthographic projection of the first snap ring 200 is located within the orthographic projection of the abutment 110.

In this embodiment, the orthographic projection of the first snap ring 200 in the axial direction of the nut 100 is set to be located within the orthographic projection of the abutting portion 110, so that the end wall of the first snap ring 200 near the abutting portion 110 and the abutting portion 110 can be substantially completely abutted, and the tightness when the two abut against each other can be further improved.

It will be appreciated that appropriate mating dimensions help to improve the stability of the connection of the nut 100 to the connector body and the tightness.

As an example, in the axial direction of the nut 100, the distance from the abutment 110 to the thread segments is L1, the size of the thread segments is L2, and the ratio of L1 to L2 is 1: (1-3).

In this embodiment, the dimension ratio of the threaded section and the non-threaded section of the inner wall 310 of the nut 100 in the axial direction of the nut 100 is limited to a specific range, so that the nut 100 and the seal body 400 can have appropriate fitting dimensions, thereby contributing to improvement of connection stability of the nut 100 and the seal body 400 and tightness at the time of connection.

The form of abutment between the second snap ring 300 and the seal body 400 is not limited, and may be selected and set according to conventional options in the art.

As an example, in the region where the second snap ring 300 and the seal body 400 correspond, the outer diameter of the second snap ring 300 gradually decreases from one end far from the seal body 400 to one end near the seal body 400, and the shape of the inner wall 310 of the seal body 400 corresponds to the shape of the outer wall 320 of the second snap ring 300.

In this embodiment, the outer wall 320 of the second snap ring 300 and the inner wall 310 of the seal body 400 are both configured to be bell-mouth shaped, so that the second snap ring 300 is detachably accommodated in the seal body 400 and is in sealing abutment with the seal body, and meanwhile, the arrangement also enables the second snap ring and the seal body to have a larger abutment area in a corresponding area, thereby being beneficial to improving the sealing performance when the second snap ring and the seal body are in abutment.

It is understood that when the inner wall 310 and the outer wall 320 of the second snap ring 300 are both horn-shaped, the relative positional relationship between the inner wall 310 and the outer wall 320 may be adjusted in consideration of manufacturing convenience and structural regularity.

As an example, the inner wall 310 and the outer wall 320 of the second snap ring 300 each decrease gradually from an end far from the seal body 400 to an end near the seal body 400, and the inner wall 310 and the outer wall 320 are distributed in parallel.

In this embodiment, the inner wall 310 and the outer wall 320 are parallel, so that the overall structure of the second snap ring 300 is relatively regular, thereby facilitating industrial manufacturing.

The inclination of the inner wall 310 and the outer wall 320 is not limited, and may be adjusted according to actual needs.

The structure and the form of the functional unit of the pipe seal 10, which are not specifically described or defined, are not limited, and may be selected and arranged according to the conventional method in the art.

It should be noted that the application scenario of the pipe sealing member 10 provided in the embodiment of the present utility model is not limited, and the pipe sealing member may be used in any equipment or environment related to pipe connection.

Referring to fig. 8, in a second aspect, an embodiment of the present utility model provides a lower entry lower exit splitter cabinet 1 comprising a cabinet body 30, a tooth fitting 20, and a duct seal 10 as provided in the first aspect embodiment. The bottom wall of the cabinet body 30 is provided with a through hole; the tooth connector 20 is connected with the cabinet body 30 and penetrates through the through hole, and one end of the tooth connector 20, which is positioned outside the cabinet body 30, is used for being communicated with a liquid supply pipeline; the pipe seal 10 is located within the cabinet 30 and the end of the seal body 400 for communication with the second pipe is configured to be able to communicate with the end of the nipple 20 located within the cabinet 30.

It should be noted that, since the bottom wall of the cabinet body 30 of the lower-in lower-out split cabinet 1 is provided with a plurality of through holes, the through holes are used for pipeline laying, if the pipeline connection part of the through holes has a leakage problem, the leakage is caused from the through holes, and thus the problems of safety, environmental pollution and the like are caused.

It should be noted that the number of the through holes is not limited, and can be adjusted according to actual needs (i.e., the actual number of the inlet and outlet pipes).

According to the utility model, the pipeline sealing piece 10 provided by the embodiment of the first aspect is arranged at the through hole of the bottom wall of the lower-in lower-out flow distribution cabinet 1, so that the risk of leakage of the butted pipeline at the through hole can be effectively reduced, and further the risk of leakage of chemicals from the gap at the through hole to the cabinet body is effectively reduced, and the problems of easy leakage and environmental pollution and the like of the lower-in lower-out flow distribution cabinet 1 are improved to a certain extent.

The manner in which the seal body 400 communicates with the dental fitting 20 is not limited, and may be, for example, screw connection or welding.

The structure and the form of the functional units which are not specifically described or defined in the lower-in lower-out splitter cabinet 1 are not limited, and may be selected and set as is conventional in the art.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A pipe seal, comprising:

the nut is used for being communicated with the first pipeline, an abutting part is arranged on the inner wall of one end, close to the first pipeline, of the nut, and an inner thread is arranged on the inner wall of the other end of the nut;

a first snap ring configured to be removably received within the nut, and configured to be sealingly abuttable with the abutment near an end of the nut;

a second snap ring for receiving and sealing against an end of the first snap ring distal from the nut proximate to an end of the first snap ring; and

the sealing element body is used for being close to one end of the second clamping ring and is configured to be detachably accommodated and sealed to be abutted to the second clamping ring, an external thread is arranged on the outer wall of the sealing element body, which is close to one end of the second clamping ring, the external thread is used for being in threaded connection with the internal thread, and the other end of the sealing element body is used for being communicated with a second pipeline.

2. The pipe seal of claim 1, wherein an inner diameter of the second snap ring increases gradually from an end distal from the first snap ring to an end proximal to the first snap ring in a region corresponding to the first snap ring and an inner diameter of an end of the second snap ring distal from the first snap ring corresponds to an outer diameter of the first snap ring.

3. The pipe seal of claim 2, wherein an outer wall of the first snap ring adjacent to one end of the second snap ring is further provided with a protrusion, and a shape of a side of the protrusion adjacent to an inner wall of the second snap ring corresponds to a shape of the inner wall of the second snap ring such that the protrusion is in sealing abutment with the inner wall of the second snap ring.

4. A pipe seal according to claim 3, wherein a plurality of the protrusions are provided at intervals on the outer wall of the first snap ring in the axial direction of the second snap ring, and the shape of the side of the plurality of the protrusions close to the inner wall of the second snap ring corresponds to the shape of the inner wall in the corresponding region of the second snap ring, respectively, so that each of the protrusions is in sealing abutment with the inner wall of the second snap ring, respectively.

5. A pipe seal according to claim 3, wherein the projection extends from an end of the first snap ring remote from the second snap ring to an end adjacent to the second snap ring in an axial direction of the second snap ring in a region corresponding to the first snap ring and the second snap ring.

6. The pipe seal according to any one of claims 1 to 5, wherein the abutting portion extends in a circumferential direction of the nut, and a side surface of the abutting portion for approaching the first snap ring is a plane in an axial direction of the nut.

7. The pipe seal of claim 6, wherein an orthographic projection of the first snap ring is located within an orthographic projection of the abutment in an axial direction of the nut.

8. The pipe seal of claim 6, wherein in an axial direction of the nut, the abutment is a distance L1 from a thread segment, the thread segment has a dimension L2, and a ratio of L1 to L2 is 1: (1-3).

9. The pipe seal according to any one of claims 1 to 5, wherein in a region where the second snap ring and the seal body correspond, an outer diameter of the second snap ring gradually decreases from an end away from the seal body to an end close to the seal body, and a shape of an inner wall of the seal body corresponds to a shape of an outer wall of the second snap ring.

10. A lower entry lower exit splitter cabinet comprising:

the cabinet body, the diapire of the said cabinet body has through-holes;

the tooth connector is connected with the cabinet body and penetrates through the through hole, and the tooth connector is positioned at one end outside the cabinet body and is communicated with a liquid supply pipeline; and

the pipe seal of any one of claims 1 to 9, the pipe seal being located within the cabinet and an end of the seal body for communication with the second pipe being configured to be capable of communicating with an end of the nipple located within the cabinet.