CN222067865U

CN222067865U - Joint assembly and pipeline connection structure

Info

Publication number: CN222067865U
Application number: CN202420253386.6U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Current assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Priority date: 2024-02-01
Filing date: 2024-02-01
Publication date: 2024-11-26
Anticipated expiration: 2034-02-01

Abstract

The utility model discloses a joint component and a pipeline connecting structure, wherein the joint component comprises: a first joint provided with a second channel section; a second joint, at least a portion of the second joint being located within the second channel segment; the locking head is in threaded connection with the first connector, one end part of the second connector is directly or indirectly abutted against the locking head, the other end part of the second connector is in hard sealing fit with the first connector, and the side part of the second connector is in soft sealing fit with the first connector. The structure form of the joint assembly is relatively simple, the installation and the disassembly are all convenient, and the labor intensity in the disassembly and assembly process can be reduced.

Description

Joint assembly and pipeline connection structure

Technical Field

The utility model relates to the technical field of refrigeration control, in particular to a joint assembly and a pipeline connection structure.

Background

In air conditioning systems, energy storage systems and other devices, joint assemblies for connecting joints and pipes are commonly used, and in the market, a flared connection mode is often adopted, so that a quick connection and a repeatedly detachable pipeline connection structure is required for those skilled in the art.

Disclosure of utility model

The utility model aims to provide a joint assembly and a pipeline connecting structure, wherein the joint assembly is relatively simple in structural form and convenient to install and detach.

In order to solve the above technical problems, the present utility model provides a joint assembly, including: a first joint provided with a second channel section; a second joint, at least a portion of the second joint being located within the second channel segment; the locking head is in threaded connection with the first connector, one end part of the second connector is directly or indirectly abutted against the locking head, the other end part of the second connector is in hard sealing fit with the first connector, and the side part of the second connector is in soft sealing fit with the first connector.

The joint assembly comprises a first joint, a second joint and a locking head, wherein the second joint is at least partially positioned in a second channel section, one end part of the second joint is in threaded connection with the first joint to be directly or indirectly abutted against the locking head, the other end part of the second joint is in hard sealing fit with the first joint, the side part of the second joint is in soft sealing fit with the first joint, and when the second joint is in subsequent fit connection with the first part and the second part, the joint assembly can be realized only by respectively realizing the welding fixation between the first joint and the second joint and the first part and the second part.

The utility model also provides a pipeline connecting structure, which comprises a first component, a second component and a joint assembly, wherein the joint assembly is used for being connected with the first component and the second component, the joint assembly comprises a first joint, a second joint and a locking head, the first joint is provided with a first channel section and a second channel section, at least part of the first channel section is fixedly connected with the first component, at least part of the second joint is positioned in the second channel section, the second joint is provided with a third channel section, at least part of the third channel section is fixedly connected with the second component, the locking head is in threaded connection with the first joint, one end part of the second joint is directly or indirectly abutted against the locking head, the other end part of the second joint is in hard sealing fit with the first joint, and the side part of the second joint is in soft sealing fit with the first joint.

In the pipeline connecting structure provided by the utility model, the first connector is connected with the first component, the second connector is connected with the second component, then the second connector is inserted into the second channel section of the first connector, and the first connector is screwed up through the locking head, so that the connection of the first component and the second component can be realized, the pipeline connecting structure is relatively simple, and the installation and the disassembly are relatively convenient.

Drawings

FIG. 1 is a cross-sectional view of a piping connection structure according to the present utility model;

FIG. 2 is a schematic view of the first joint in FIG. 1;

FIG. 3 is a half cross-sectional view of FIG. 2;

FIG. 4 is a schematic view of the second joint of FIG. 1;

FIG. 5 is a half cross-sectional view of FIG. 4;

FIG. 6 is a schematic view of the structure of the locking head;

Fig. 7 is a half cross-sectional view of fig. 6.

The reference numerals are explained as follows:

100 first component;

200 a second component;

300 joint assembly, 310 first joint, 311 first channel section, 312 second channel section, 321a expanded diameter portion, 313 first partition portion, 314 abutment portion, 314a annular rib, 315 first operation portion, 320 second joint, 321 third channel section, 322 fourth channel section, 323 conical surface, 324 thick neck, 325 thin neck, 325a seal groove, 326 seal element, 327 second partition portion, 330 locking head, 331 cylindrical portion, 331a threaded portion, 331b groove section, 332 end plate portion, 333 second operation portion, 340 gasket.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments.

In embodiments of the present utility model, the terms "first," "second," "third," "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature.

References to orientation terms, such as "inner", "outer", etc., in the embodiments of the present utility model are only with reference to the orientation of the drawings, and thus, the use of orientation terms is intended to better and more clearly describe and understand the embodiments of the present utility model, rather than to indicate or imply that the apparatus or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the embodiments of the present utility model.

In the description of embodiments of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Referring to fig. 1-7, fig. 1 is a cross-sectional view of a pipe connection structure provided by the present utility model, fig. 2 is a schematic structural view of a first joint in fig. 1, fig. 3 is a semi-cross-sectional view of fig. 2, fig. 4 is a schematic structural view of a second joint in fig. 1, fig. 5 is a semi-cross-sectional view of fig. 4, fig. 6 is a schematic structural view of a locking head, and fig. 7 is a semi-cross-sectional view of fig. 6.

As shown in fig. 1, the present utility model provides a pipe connection structure including a first member 100, a second member 200, and a joint assembly 300. Wherein the joint assembly 300 is used to connect the first member 100 and the second member 200.

Here, the embodiment of the present utility model is not limited to the specific kinds of the first member 100 and the second member 200, and in practical applications, one skilled in the art may determine according to specific needs. For example, both the first and second members 100, 200 may be tubular members, such an implementation may be seen in FIG. 1, at which point the joint assembly 300 may effect a connection between the two tubular members. For another example, the first component 100 may be a valve device, the valve device may have a joint portion, and the second component 200 may be a pipe, in which case the joint assembly 300 may make a connection between the pipe and the joint portion of the valve device.

Referring to fig. 2-6 together, the joint assembly 300 includes a first joint 310, a second joint 320, and a locking head 330, where the first joint 310, the second joint 320, and the locking head 330 may all be in an annular structure, so that the first component 100 and the second component 200 are plugged together, and meanwhile, the circulation of the working medium between the first component 100 and the second component 200 is not affected.

The first joint 310 is provided with a first channel section 311 and a second channel section 312, the first channel section 311 and the second channel section 312 being in communication.

The first channel section 311 is used for mounting the first component 100, and specific mounting manners include, but are not limited to, welding, threaded connection, clamping connection, interference fit, and the like, so long as the reliability of connection can be ensured. In a specific example, the first channel segment 311 and the first component 100 may be welded and fixed, so as to ensure connection reliability between the first joint 310 and the first component 100; moreover, the welding and fixing mode can synchronously realize the sealing between the first joint 310 and the first component 100 without additionally arranging other sealing components, thereby being beneficial to the simplification of the connecting structure between the first joint 310 and the first component 100; in addition, the welding and fixing mode does not need to carry out structural modification on the first component 100, for example, flaring and the like on the first component 100 are not needed, the assembly process can be simplified, and the assembly difficulty is reduced.

The second channel segment 312 is configured to receive the second connector 320, such that at least a portion of the second connector 320 is positioned within the second channel segment 312 during a particular assembly.

As shown in fig. 3, a first partition 313 may be disposed between the first channel section 311 and the second channel section 312, and the first partition 313 may specifically be an annular shoulder formed by protruding an inner wall surface of the inner hole of the first joint 310 radially inwards, which is used for partitioning the first channel section 311 and the second channel section 312; meanwhile, the first partition 313 may also be used as a limiting member for abutting and limiting with the first component 100, so that the assembly depth of the first component 100 in the first joint 310 may be well limited, the installation of the first component 100 may be facilitated, and the connection reliability of the first component 100 may be ensured. It should be understood that the structural form of the first partition 313 is not limited to that shown in fig. 3, and may be provided as a stepped surface or the like as long as the above-described technical effects can be achieved; even if the first partition 313 is not present, the first joint 310 may not be practically unusable, in other words, the first partition 313 may be provided mainly for improving the convenience of installation, and the first partition 313 may not be provided only from the viewpoint of being usable or not.

The second joint 320 is provided with a third channel section 321, which third channel section 321 can be used for mounting the second component 200. The mounting manner between the second member 200 and the second joint 320 may be described with reference to the foregoing mounting manner between the first member 100 and the first joint 310, and will not be repeated herein.

Referring to fig. 5, second connector 320 may further include a fourth channel section 322, fourth channel section 322 being an internal flow channel of second connector 320 for direct communication with second component 200.

The third channel section 321 may have a larger aperture than the fourth channel section 322, such that a step surface, which is a second partition 327 for partitioning the third channel section 321 and the fourth channel section 322, may be formed between the third channel section 321 and the fourth channel section 322; meanwhile, the second partition 327 may also be used as a limiting component for abutting and limiting with the second component 200, so that the assembly depth of the second component 200 in the second connector 320 can be well limited, the installation of the second component 200 can be facilitated, and the connection reliability of the second component 200 can be ensured. It should be understood that the structural form of the second partition 327 is not limited to that shown in fig. 5, and may be provided as an annular shoulder or the like as shown in the first partition 313, as long as the above-described technical effects can be achieved; even if the second partition 327 is not present, the second connector 320 is not practically unusable, in other words, the second partition 327 is mainly provided for improving the convenience of installation, and the second partition 327 is not required only from the viewpoint of being usable or not.

The locking head 330 includes a cylindrical portion 331 and an end plate portion 332. The cylindrical portion 331 and the first joint 310 are screwed together, and the end plate portion 332 can directly or indirectly abut against the second joint 320. When the locking head 330 is in the tightened state, the second connector 320 is sealingly connected with the first connector 310, so that the tightness between the first connector 310 and the second connector 320 can be ensured.

In the above-mentioned scheme, in the embodiment of the utility model, only the first connector 310 is connected with the first component 100, the second connector 320 is connected with the second component 200, and then the second connector 320 is inserted into the second channel section 312 of the first connector 310 and screwed up by the locking head 330 and the first connector 310, so that the connection between the first component 100 and the second component 200 can be realized, the structure of the connector assembly 300 is relatively simple, the installation and the disassembly are relatively convenient, the labor intensity in the disassembly process is lower, and the cost is lower.

In some alternative implementations, an abutment 314 may be provided within the second channel segment 312, and in the tightened state, a hard sealing fit may be formed between the axial end of the second joint 320 and the abutment 314 in the form of an abutment. The sealing fit mode only needs to ensure that the second connector 320 and the first connector 310 can abut against each other, and the structure is relatively simple.

In one example, one of the abutment 314 and the axial end of the second joint 320 may have a tapered surface 323, the other may have an annular rib 314a, and the annular rib 314a and the tapered surface 323 may form a hard sealing fit in the form of a line contact in such a manner that the contact area of the abutment 314 and the axial end is relatively small, the sealing is relatively easy to ensure, reliability may be higher, and the risk of leakage is relatively low. This example is specifically shown in fig. 1, 3, and 5, in which the abutment 314 and the annular rib 314a may be formed in the first joint 310, and the tapered surface 323 may be formed in the second joint 320, although the positions of the abutment 314 and the tapered surface 323 are reversed.

The number of the annular ribs 314a may be one or plural, and when the number is plural, a plurality of line seals may be formed between each annular rib 314a and the tapered surface 323, so that the reliability of the seal is further improved. In addition, in fig. 1 and 3, the annular edge 314a is a boundary edge of two different surfaces, in addition to the above, the annular edge 314a may be one of arc surfaces formed by chamfering at the boundary of two different surfaces, and in any case, the annular edge 314a may form a line contact with the conical surface 323 to achieve sealing.

In other examples, the abutment 314 and the second joint 320 may be in a surface-contact manner to form a hard seal, for example, the second abutment 314 and the second joint 320 may each be provided with the tapered surface 323 described above, as is also possible.

In some alternative implementations, at least one of the outer peripheral wall of the second joint 320 and the inner peripheral wall of the second channel segment 312 may be provided with a seal groove 325a, and a sealing element 326 may be provided within the seal groove 325 a. The sealing element 326 may be a deformable body made of flexible material such as rubber, and may be compressed during the process of inserting the second connector 320 into the second channel section 312 of the first connector 310, so as to form a soft sealing fit between the second connector 320 and the first connector 310; in this way, the sealing performance between the second connector 320 and the first connector 310 can be improved, so that a better leakage-proof technical effect can be achieved.

Specifically, referring to fig. 5, a seal groove 325a may be provided at the second joint 320. The number of seal grooves 325a may be one or a plurality of seal grooves; when the number of seal grooves 325a is plural, the number of seal elements 326 may be plural, and each seal element 326 may be disposed in each seal groove 325a in a one-to-one correspondence to form multiple seals between the first joint 310 and the second joint 320, and the reliability of the seal may be higher.

In practical applications, the above-mentioned hard seal fit and soft seal fit may be alternatively arranged so as to simplify the structure. Of course, the above-mentioned hard seal fit and soft seal fit may be provided, so that the seal forms may be more diversified, which is more advantageous for ensuring the tightness between the first connector 310 and the second connector 320.

In some alternative implementations, the second joint 320 may further include a thick neck portion 324 and a thin neck portion 325, and at least a portion of the third channel section 321 may be located at the thick neck portion 324.

As previously mentioned, the third channel section 321 is adapted to be connected to the second component 200, for example by welding, in which case the structural strength requirements for the second joint 320 are high. Therefore, the embodiment of the present utility model selects at least a portion of the wall portion for forming the third channel section 321 to be provided as the thick neck portion 324 for enhancing the structural strength of the second joint 320, so that the welding deformation of the second joint 320 is not easily caused when the second joint 320 and the second member 200 are welded, which has positive significance in ensuring the welding quality, the welding reliability between the second joint 320 and the second member 200, and the like.

Correspondingly, the second channel section 312 for inserting the second connector 320 may also be designed with a variable diameter, and a portion of the second channel section 312 corresponding to the thick neck 324 may be provided with a diameter-expanding portion 321a to accommodate the insertion of the thick neck 324.

In some alternative implementations, the joint assembly 300 may further include a spacer 340, where the spacer 340 may be located between the end plate 332 and the second joint 320, and where the end plate 332 may specifically indirectly abut the second joint 320 via the spacer 340. The spacer 340 may play a role in buffering, which may reduce the driving force generated by the end plate 332 on the second connector 320, and may avoid the second connector 320 from rotating under the driving of the locking head 330 to a greater extent, so as to reduce wear between the second connector 320 and the first connector 310, which has positive significance for ensuring the integrity and the service life of the hard seal mating structure and the soft seal mating structure between the second connector 320 and the first connector 310.

Referring to fig. 7, the inner hole of the cylindrical portion 331 includes a thread section 331a and a groove section 331b, the groove section 331b is located at a side of the thread section 331a near the end plate portion 332, and the thickness of the spacer 340 may be less than or equal to the axial dimension of the groove section 331 b. In this way, the space of the threaded section 331a in the cylindrical portion 331 is not occupied by the arrangement of the spacer 340, so that the threaded section 331a in the cylindrical portion 331 can be used for threaded connection with the first joint 310, and the utilization rate of the threaded section 331a can be effectively improved; in addition, the groove section 331b can also be used as a tool retracting groove for facilitating the processing and preparation of the thread section 331 a.

The thread segments 331a may be female threads, and accordingly, the first connector 310 may be provided with male threads, and the cylindrical portion 331 may be located radially outside the first connector 310.

For convenience of connection, the outer wall surfaces of the first connector 310 and the locking head 330 may be provided with an operation portion, and referring to fig. 2 and 6, the first connector 310 may be provided with a first operation portion 315, the locking head 330 may be provided with a second operation portion 333, and cross sections perpendicular to the axial direction of the first operation portion 315 and the second operation portion 333 may be non-circular, for example, hexagonal, etc., so that the first connector 310 and the locking head 330 are operated through the first operation portion 315 and the second operation portion 333. In specific practice, the operator may clamp the first operation part 315 with an operation tool in the form of a wrench or the like, so that the first joint 310 may be fixed, and then the locking head 330 may be rotated by the second operation part 333 with an operation tool in the form of a wrench or the like to tighten or loosen the locking head 330.

In the description of each of the above embodiments, the cylindrical portion 331 is taken as an example to be located outside the first joint 310. In fact, it is also possible to provide the external thread on the cylindrical portion 331 and then provide the internal thread on the second passage section 312 of the first joint 310, and in this case, the cylindrical portion 331 may be located inside the first joint 310, so that the locking head 330 generates an abutment force on the second joint 320 through the cylindrical portion 331, the locking head 330 may not include the end plate 332, and the structural form of the locking head 330 may be simplified.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. A joint assembly, comprising:

A first joint having a second channel section;

a second joint, at least a portion of which is located within the second channel section;

A locking head, wherein the locking head is threadedly connected to the first joint, one end of the second joint is directly or indirectly abutted against the locking head, the other end of the second joint is hard-sealed with the first joint, and the side of the second joint is soft-sealed with the first joint.

2. The joint assembly according to claim 1, characterized in that the joint assembly is used to connect a first component and a second component, the first joint is further provided with a first channel section, and the first channel section is at least partially fixedly connected to the first component;

The second joint is provided with a third channel section, and the third channel section is at least partially fixedly connected to the second component.

3. The joint assembly according to claim 1 is characterized in that an abutment portion is provided in the second channel section, and when in a tightened state, a hard seal is formed between the axial end of the second joint and the abutment portion.

4 . The joint assembly according to claim 3 , wherein one of the abutting portion and the axial end portion has a conical surface, and the other has an annular ridge, and the annular ridge and the conical surface form the hard seal fit.

5. The joint assembly according to any one of claims 1-4 is characterized in that at least one of the outer circumferential wall of the second joint and the inner circumferential wall of the second channel section is provided with a sealing groove, a flexible sealing element is provided in the sealing groove, and the sealing element is abutted between the second joint and the first joint.

6. The connector assembly according to any one of claims 1 to 4, further comprising a gasket, wherein the gasket is located between the locking head and the second connector, and the locking head indirectly abuts against the second connector through the gasket.

7. The connector assembly according to claim 6 is characterized in that the locking head comprises a cylindrical portion and an end plate portion, the cylindrical portion is sleeved on the first connector and threadedly connected to the first connector, and the end plate portion is abutted against the second connector through the gasket.

8. The joint assembly according to claim 7 is characterized in that the inner wall surface of the cylindrical portion includes a threaded section and a groove section, the groove section is located on a side of the threaded section close to the end plate portion, and the thickness of the gasket is less than or equal to the axial dimension of the groove section.

9. The connector assembly according to any one of claims 1 to 4, characterized in that the second connector comprises a thick neck and a thin neck, and at least a portion of the third channel section of the second connector is located in the thick neck.

10. A pipeline connection structure, characterized in that it includes a first component, a second component and a joint assembly, the joint assembly is used to connect with the first component and the second component, the joint assembly includes a first joint, a second joint and a locking head, the first joint is provided with a first channel section and a second channel section, the first channel section is at least partially fixedly connected to the first component, at least part of the second joint is located in the second channel section, the second joint is provided with a third channel section, the third channel section is at least partially fixedly connected to the second component, the locking head is threadedly connected to the first joint, one end of the second joint is directly or indirectly abutted against the locking head, the other end of the second joint is hard-sealed with the first joint, and the side of the second joint is soft-sealed with the first joint.