CN110715133A

CN110715133A - Pipeline connecting structure

Info

Publication number: CN110715133A
Application number: CN201810758681.6A
Authority: CN
Inventors: 董军启; 王美
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Sanhua Holding Group Co Ltd
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2020-01-21
Anticipated expiration: 2038-07-11
Also published as: CN110715133B

Abstract

The invention discloses a pipeline connecting structure and an air conditioning system with the same, wherein the pipeline connecting structure comprises: a first connection block including at least a first channel a and a first channel b; the second connecting block at least comprises a second channel a and a second channel b, the second channel a is communicated with the first channel a, the second channel b is communicated with the first channel b, a first positioning ring groove surrounding the first channel is arranged on the surface, facing the second connecting block, of the first connecting block, a second positioning ring platform surrounding the second channel is arranged on the surface, facing the first connecting block, of the second connecting block, and the second positioning ring platform is matched in the first positioning ring groove; and the first connecting block and the second connecting block are fastened through the fastening piece. The pipeline connecting structure provided by the embodiment of the invention has the advantages of convenience in use, good sealing effect and the like.

Description

Pipeline connecting structure

Technical Field

The invention relates to the technical field of electric appliance manufacturing, in particular to a pipeline connecting structure.

Background

In the air conditioning system in the related art, the pipeline connecting structure for connecting the refrigerant pipelines comprises two connecting blocks, wherein the two connecting blocks are provided with respective passages, and the two connecting blocks are connected through bolts to realize the butt joint and communication of the passages.

At present, the existing pipeline connecting structures are single connecting plate structures, the connecting structure is suitable for structures with inlets and outlets at two ends of a heat exchanger, and when the inlets and the outlets of the heat exchanger are arranged at the same side, two independent connecting plates are needed, so that a large space is occupied.

Disclosure of Invention

The invention provides a pipeline connecting structure, when the inlet and the outlet of a heat exchanger are on the same side, only one double-pipeline connecting structure is needed, and the installation space is saved.

To achieve the above object, a pipe connection structure according to an embodiment of the present invention is provided, including: a first connection block including at least a first channel a and a first channel b; the second connecting block at least comprises a second channel a and a second channel b, the second channel a is communicated with the first channel a, the second channel b is communicated with the first channel b, a first positioning ring groove surrounding the first channel is arranged on the surface, facing the second connecting block, of the first connecting block, a second positioning ring platform surrounding the second channel is arranged on the surface, facing the first connecting block, of the second connecting block, and the second positioning ring platform is matched in the first positioning ring groove; and the first connecting block and the second connecting block are fastened through the fastening piece.

In addition, the pipeline connecting structure according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, the connecting device further comprises through holes, the fasteners penetrate through the through holes, the number of the fasteners is not less than two, and the first connecting block and the second connecting block are provided with not less than two through holes.

According to an embodiment of the present invention, the through holes of the first connection block include a first through hole and a second through hole, the first channel a and the first channel b are located between the two first through holes and the second through hole, the through holes of the second connection block include a third through hole and a fourth through hole, and the second channel a and the second channel b are located between the two third through holes and the fourth through hole.

According to an embodiment of the present invention, the fastening member includes a first fastening member, a second fastening member, and the first connection block is connected by the first fastening member fitted in the first through hole and the third through hole and the second fastening member fitted in the second through hole and the fourth through hole.

According to an embodiment of the present invention, the pipe connection structure further includes a third fastener between the first channel a and the first channel b and between the second channel a and the second channel b.

According to one embodiment of the invention, the first connection block comprises a first sub-block and a second sub-block, the first channel b is arranged on the first sub-block, the first channel a is arranged on the second sub-block, the first sub-block is provided with a fifth through hole, the second sub-block is provided with a sixth through hole, the second connection block is provided with a seventh through hole, and the third fastener is matched in the fifth through hole, the sixth through hole and the seventh through hole.

According to one embodiment of the invention, the first sub-block has a positioning lug, at least a portion of the second sub-block being clamped between the positioning lug and the second connection block.

According to one embodiment of the invention, one side of the positioning lug is provided with a notch, and the second sub-block is provided with a boss which is matched in the notch.

According to one embodiment of the invention, the end face of the boss is flush with the surface of the first sub-block away from the second connecting block.

According to an embodiment of the present invention, the pipeline connecting structure further includes a sealing ring, and the sealing ring is fitted in the first positioning ring groove and clamped between the end surface of the second positioning ring table and the bottom wall of the first positioning ring groove.

According to one embodiment of the invention, the sealing ring is an expanded graphite gasket.

According to one embodiment of the invention, a surface of the first connecting block facing the second connecting block is provided with a first boss surrounding the first channel, the first positioning ring groove is formed on an end surface of the first boss, a surface of the second connecting block facing the first connecting block is provided with a second groove surrounding the second channel, the second positioning ring groove is formed on a bottom wall of the second groove, and the first boss is fitted in the second groove.

According to the pipeline connecting structure provided by the embodiment of the invention, the two pipelines are connected through the pair of connecting blocks, so that a part of installation space is saved.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of a piping connection structure according to an embodiment of the present invention.

Fig. 2 is a sectional view of a pipe connection structure according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a pipe connection structure according to another embodiment of the present invention.

Fig. 4 is an exploded view of a pipe connection structure according to another embodiment of the present invention.

Fig. 5 is a sectional view of a pipe connection structure according to another embodiment of the present invention.

Fig. 6 is an exploded view of a pipe connection structure according to another embodiment of the present invention.

Fig. 7 is a sectional view of a pipe connection structure according to another embodiment of the present invention.

Reference numerals: the pipe connecting structure 1, the first connecting block 100, the first channel 110, the first channel b111, the first channel a112, the first positioning ring groove 120, the first boss 130, the first through hole 140, the second through hole 150, the first sub-block 160, the fifth through hole 161, the positioning lug 162, the notch 163, the second sub-block 170, the sixth through hole 171, the boss 172, the second connecting block 200, the second channel 210, the second channel b211, the second channel a212, the second positioning ring platform 220, the second groove 230, the third through hole 250, the fourth through hole 260, the seventh through hole 270, the first fastener 310, the second fastener 320, the third fastener 330, and the sealing ring 400.

Detailed Description

The present invention is based on the discovery and recognition by the inventors of the following facts and problems:

pipeline connection structure among the correlation technique, bolted connection is passed through to two connecting blocks, when adopting carbon dioxide as the refrigerant, because carbon dioxide's operating pressure is great, and the one side pretightning force that leads to two connecting blocks to keep away from the bolt is great, and the opposite side pretightning force that is close to the bolt is less, and the perk easily takes place in one side that the bolt was kept away from to two connecting blocks like this to lead to pipeline connection structure to take place to leak.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A piping connection structure 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 7, a pipe connecting structure 1 according to an embodiment of the present invention includes a first connecting block 100, a second connecting block 200, a fastener, and a through hole.

The first connection block 100 includes at least a first channel a112 and a first channel b 111. The second connection block 200 includes at least a second channel a212 and a second channel b211, the second channel a212 communicating with the first channel a112, and the second channel b211 communicating with the first channel b 111. The first and

second connection blocks

100 and 200 are fastened by the fastener. The surface of the first connection block 100 facing the second connection block 200 is provided with a first positioning ring groove 120 surrounding the first channel 110, and the surface of the second connection block 200 facing the first connection block 100 is provided with a second positioning ring land 220 surrounding the second channel 210, the second positioning ring land 220 being fitted in the first positioning ring groove 120. Of course, the positions of the first and second

detent ring grooves

120 and 220 may be interchanged.

According to the pipe connection structure 1 of the embodiment of the present invention, by providing the first positioning ring groove 120 and the second positioning ring table 220, the first positioning ring groove 120 and the second positioning ring table 220 can be used to position and guide the installation of the first connection block 100 and the second connection block 200, so that the first connection block 100 and the second connection block 200 can be smoothly installed, the first channel 110 and the second channel 210 can be smoothly communicated, and the sealing performance of the pipe connection structure 1 can be further improved.

In addition, the first connection block 100 is provided with the first channel a112 and the first channel b111, and the second connection block 200 is provided with the second channel a212 and the second channel b211, so that different refrigerants, such as a high-pressure refrigerant and a low-pressure refrigerant, can smoothly circulate in the pipeline connection structure 1, and the working performance of the pipeline connection structure 1 can be improved. Compare high-pressure line and low-pressure line and adopt the mode that different connection structure connects respectively, integrate different pipelines such as high-pressure line and low-pressure line together, improve pipeline connection structure 1's integrated level, be convenient for not only improve pipeline connection structure 1's assembly efficiency, save assemble duration, can reduce pipeline connection structure 1's volume moreover, practice thrift required installation space. Meanwhile, the problem that the stress of the pipeline connecting structure 1 is uneven can be solved, the leakage risk of the pipeline connecting structure 1 is reduced, and the sealing effect of the pipeline connecting structure 1 is further improved.

In addition, through making the fastener is no less than two, compare the pipeline connection structure among the correlation technique, can improve pipeline connection structure 1's sealing performance, be convenient for pipeline connection structure 1 uses in the occasion that sealed requirement is high, for example use in the air conditioning system who uses two kinds of refrigerants, especially in one of them refrigerant is carbon dioxide for the air conditioning system of refrigerant.

Therefore, the pipeline connecting structure 1 has the advantages of convenience in use, good sealing effect and the like.

A piping connection structure 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

In some embodiments of the present invention, as shown in fig. 1 to 7, a pipe connection structure 1 according to an embodiment of the present invention includes a first connection block 100, a second connection block 200, a fastener, and a through hole.

Optionally, the fasteners penetrate through the through holes, the number of the fasteners is not less than two, and the first connecting block 100 and the second connecting block 200 are provided with not less than two through holes. Compare the pipeline connection structure among the correlation technique like this, can make the pretightning force distribution of first connecting block 100 and second connecting block 200 more even, make the atress of first connecting block 100 and second connecting block 200 more balanced, avoid appearing the too big condition of local stress, be convenient for improve pipeline connection structure 1's structural stability, avoid first connecting block 100 and second connecting block 200 atress inequality and take place the perk separation, thereby can reduce pipeline connection structure 1 and take place the risk of leaking, be convenient for improve pipeline connection structure 1's sealed reliability, improve pipeline connection structure 1's performance.

Specifically, as shown in fig. 2, the through holes of the first connection block 100 include a first through hole 140 and a second through hole 150, the first channel a112 and the first channel b111 are located between the two first through holes 140 and the second through hole 150, the through holes of the second connection block 200 include a third through hole 250 and a fourth through hole 260, and the second channel a212 and the second channel b211 are located between the two third through holes 250 and the fourth through hole 260. Therefore, the stress of the first connecting block 100 and the second connecting block 200 can be more uniform, and the sealing effect of the pipeline connecting structure 1 can be further improved.

More specifically, the fastening members include a first fastening member 310, a second fastening member 320, and the first connection block 100 is connected by the first fastening member 310 fitted in the first through hole 140 and the third through hole 250 and the second fastening member 320 fitted in the second through hole 150 and the fourth through hole 260. Not only can be in the same place the firm installation of first connecting block 100 and second connecting block 200 like this, guarantee fixed connection's reliability and stability between first connecting block 100 and the second connecting block 200, the installation of pipeline connection structure 1 of can being convenient for moreover improves pipeline connection structure 1's dismouting efficiency, not only can improve pipeline connection structure 1's production efficiency, when pipeline connection structure 1 breaks down moreover, can carry out the dismouting fast.

Further, as shown in fig. 5, the pipe connecting structure 1 further includes a third fastening member 330, and the third fastening member 330 is located between the first passage a112 and the first passage b111 and between the second passage a212 and the second passage b 211. Therefore, the stress of the pipeline connecting structure 1 is more uniform, the connection reliability of the pipeline connecting structure 1 is further improved, the sealing performance of the pipeline connecting structure 1 is further improved, and the risk of leakage of the pipeline connecting structure 1 is reduced.

Further, as shown in fig. 5, the first connection block 100 includes a first sub-block 160 and a second sub-block 170, the first channel b111 is disposed on the first sub-block 160, the first channel a112 is disposed on the second sub-block 170, the first sub-block 160 is provided with a fifth through hole 161, the second sub-block 170 is provided with a sixth through hole 171, the second connection block 200 is provided with a seventh through hole 270, and the third fastening member 330 is fitted in the fifth through hole 161, the sixth through hole 171, and the seventh through hole 270. Therefore, the connection reliability of the pipeline connecting structure 1 is improved, and the smooth disassembly and assembly of the pipeline connecting structure 1 can be avoided due to the fact that one subblock is installed firstly and then the other subblock is installed during installation, and the condition that the pipeline connecting structure 1 is blocked due to fit errors or inclination during assembly is avoided.

Specifically, the first through hole 140 is located at one side of the first channel b111 and the fifth through hole 161 is located at the other side of the first channel b 111. The sixth through hole 171 is located at one side of the first channel a112 and the second through hole 150 is located at the other side of the first channel a 112. The fifth through hole 161 and the sixth through hole 171 are located between the first passage b111 and the first passage a112, respectively. The seventh through hole 270 is located between the second channel b211 and the second channel a 212. The fifth through hole 161, the sixth through hole 171, and the seventh through hole 270 are in communication in order.

Specifically, as shown in fig. 7, the first sub-block 160 has a positioning lug 162, and at least a portion of the second sub-block 170 is sandwiched between the positioning lug 162 and the second connection block 200. Therefore, the positioning lug 162 can be used for positioning when the second sub-block 170 is installed, so that the installation operation can be simplified, the smooth installation of the second sub-block 170 is facilitated, and the stability and the reliability of the second sub-block 170 after installation can be improved.

More specifically, as shown in FIG. 7, the positioning lug 162 is provided with a notch 163, and the second sub-block 170 is provided with a boss 172, the boss 172 fitting within the notch 163. Therefore, the second sub-block 170 can be positioned by the notches 163 and the bosses 172, so that the second sub-block 170 can be conveniently arranged, the interference between the first sub-block 160 and the second sub-block 170 can be avoided, and the first sub-block 160 and the second sub-block 170 can be conveniently and smoothly assembled and molded.

Further, as shown in fig. 7, the end surface of the boss 172 is flush with the surface of the first sub-block 160 away from the second connection block 200. This facilitates the integrity and aesthetic appearance of the pipe joint structure 1.

Specifically, as shown in fig. 7, the pipeline connecting structure 1 further includes a sealing ring 400, and the sealing ring 400 is fitted in the first positioning ring groove 120 and clamped between the end surface of the second positioning ring table 220 and the bottom wall of the first positioning ring groove 120. Therefore, the sealing performance between the first connecting block 100 and the second connecting block 200 can be improved by using the sealing ring 400, so that the sealing performance of the pipeline connecting structure 1 is improved, the pipeline connecting structure 1 is prevented from leaking, and the working performance of the pipeline connecting structure 1 is further improved.

Further, the seal ring 400 is an expanded graphite gasket. This further facilitates the improvement of the operational reliability of the seal ring 400 and the improvement of the sealing effect of the seal ring 400.

Alternatively, as shown in fig. 7, the surface of the first connection block 100 facing the second connection block 200 is provided with a first boss 130 surrounding the first channel 110, a first positioning ring groove 120 is formed at an end surface of the first boss 130, the surface of the second connection block 200 facing the first connection block 100 is provided with a second groove 230 surrounding the second channel 210, a second positioning ring land 220 is formed at a bottom wall of the second groove 230, and the first boss 130 is fitted in the second groove 230. Therefore, the first positioning ring groove 120 and the second positioning ring groove 220 are conveniently arranged, the first connecting block 100 and the second connecting block 200 can be positioned and guided by the first boss and the second groove 230, the first connecting block 100 and the second connecting block 200 can be smoothly assembled, and the assembly accuracy and the assembly efficiency of the pipeline connecting structure 1 can be improved. Meanwhile, the stress of the first connecting block 100 and the second connecting block 200 can be more uniform, and the local stress concentration is avoided, so that the tilting of one side of the first connecting block 100 and one side of the second connecting block 200 can be further prevented.

Of course, the positions of the first boss 130 and the second recess 230 may be interchanged.

An air conditioning system according to an embodiment of the present invention is described below. The air conditioning system according to the embodiment of the present invention includes the pipe connection structure 1 according to the above-described embodiment of the present invention.

Specifically, the air conditioning system may be an air conditioning system using carbon dioxide as a refrigerant.

According to the air conditioning system provided by the embodiment of the invention, the pipeline connecting structure 1 provided by the embodiment of the invention has the advantages of convenience in use, good sealing effect and the like.

Other configurations and operations of the air conditioning system according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pipe connecting structure, comprising:

a first connection block including at least a first channel a and a first channel b;

the second connecting block at least comprises a second channel a and a second channel b, the second channel a is communicated with the first channel a, the second channel b is communicated with the first channel b, a first positioning ring groove surrounding the first channel is arranged on the surface, facing the second connecting block, of the first connecting block, a second positioning ring platform surrounding the second channel is arranged on the surface, facing the first connecting block, of the second connecting block, and the second positioning ring platform is matched in the first positioning ring groove;

and the first connecting block and the second connecting block are fastened through the fastening piece.

2. The pipeline connecting structure according to claim 1, further comprising through holes, wherein the fasteners penetrate through the through holes, the number of the fasteners is not less than two, and the first connecting block and the second connecting block are provided with the through holes which are not less than two.

3. The pipe connecting structure according to claim 2, wherein the through-holes of the first connecting block include a first through-hole and a second through-hole, the first passage a and the first passage b are located between the two first through-holes and the second through-hole, the through-holes of the second connecting block include a third through-hole and a fourth through-hole, and the second passage a and the second passage b are located between the two third through-holes and the fourth through-hole.

4. The pipe connecting structure according to claim 1, wherein the fastening member includes a first fastening member, a second fastening member, and the first connecting block is connected by the first fastening member fitted in the first through hole and the third through hole and the second fastening member fitted in the second through hole and the fourth through hole.

5. The pipe connection according to claim 4, further comprising a third fastener between the first channel a and the first channel b and between the second channel a and the second channel b.

6. The piping connection structure according to claim 5, wherein the first connection block comprises a first sub-block and a second sub-block, the first channel b is provided in the first sub-block, the first channel a is provided in the second sub-block, the first sub-block is provided with a fifth through hole, the second sub-block is provided with a sixth through hole, the second connection block is provided with a seventh through hole, and the third fastener is fitted in the fifth through hole, the sixth through hole, and the seventh through hole.

7. The pipe connection according to claim 6, wherein the first sub-block has a positioning lug, and at least a portion of the second sub-block is sandwiched between the positioning lug and the second connection block.

8. The pipe connection structure according to claim 7, wherein a notch is formed on one side of the positioning lug, and the second sub-block is provided with a boss, and the boss is fitted in the notch.

9. The pipe connection structure according to claim 8, wherein an end surface of the boss is flush with a surface of the first sub-block away from the second connection block.

10. The pipe connection according to claim 1, further comprising a seal ring fitted in the first positioning groove and clamped between an end surface of the second positioning ring table and a bottom wall of the first positioning ring groove.

11. The pipe connection according to claim 10, wherein the seal ring is an expanded graphite gasket.

12. The pipe connection structure according to claim 1, wherein a surface of the first connection block facing the second connection block is provided with a first boss surrounding the first passage, the first positioning ring groove is formed at an end surface of the first boss, a surface of the second connection block facing the first connection block is provided with a second groove surrounding the second passage, the second positioning ring land is formed at a bottom wall of the second groove, and the first boss is fitted in the second groove.