Pipeline relay module of refrigerating system and refrigerating system

Abstract

The utility model discloses a pipeline relay module of a refrigerating system and the refrigerating system, and belongs to the field of refrigerating pipelines. According to the technical scheme, the pipeline relay module of the refrigerating system comprises a relay shell internally provided with a relay cavity and further comprises refrigerating pipeline connectors, a plurality of fixing structures used for being connected with the refrigerating pipeline connectors in an inserted mode are arranged on the relay shell, each fixing structure comprises a blind pipe, the opening end of each blind pipe is connected and communicated with the relay cavity, and the opening end of each blind pipe is connected with the relay cavity. A connecting through hole is formed in the closed end of the blind pipe, an inserting pipe is inserted into the connecting through hole, a closing mechanism used for blocking the connecting through hole is arranged in the closed end of the blind pipe, and one end of the closing mechanism penetrates through the closed end of the blind pipe and extends into the inserting pipe. The utility model has the beneficial effects that one or more refrigerating units can be conveniently added or reduced in a cooling loop by improving the pipeline connecting structure, so that the working efficiency of adding and reducing modules is fully improved, and the modular operation of the refrigerating system is greatly promoted.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration pipelines, in particular to a pipeline relay module of a refrigeration system and a refrigeration system. Background Art

[0002] Large-scale refrigeration systems are usually composed of multiple refrigerators, each of which is connected to the same cooling circuit through pipes. During the refrigeration process, the right number of refrigerators can be started according to the cooling demand. On the basis of meeting the usage needs, it fully saves energy and improves resource utilization. It is usually used in industrial refrigeration equipment or air-conditioning systems of large commercial buildings.

[0003] When arranging the cooling circuit of a refrigeration system, several pipes are typically required. Currently, these pipes are typically connected using two-way, three-way, or four-way pipe joints. These joints are connected to the pipes via flanges, and securing the flanges requires the use of multiple bolts.

[0004] Therefore, when it is necessary to add or remove one or more refrigeration units in the existing cooling circuit, it is very troublesome to disassemble and reconnect the pipes in the current refrigeration piping system. Moreover, if the complex pipe route is connected incorrectly, it must be disassembled and reconnected, which greatly reduces work efficiency. Summary of the Invention

[0005] The utility model aims to solve the problem that the flanges of the current refrigeration pipeline system need to be repeatedly disassembled and assembled when adjusting the line, which is cumbersome and has low work efficiency. It provides a pipeline relay module for the refrigeration system that is easy to connect and disassemble.

[0006] In response to the above problems, the technical solution adopted by the present invention is a pipeline relay module for a refrigeration system, comprising a relay shell with a relay cavity provided therein, and a refrigeration pipe joint. The relay shell is provided with a plurality of fixing structures for plugging in the refrigeration pipe joint, the fixing structure comprising a blind pipe, the open end of the blind pipe being connected and communicated with the relay cavity, the closed end of the blind pipe being provided with a connecting through-hole, a plug-in pipe being plugged into the connecting through-hole, a closing mechanism for sealing the connecting through-hole being provided in the closed end of the blind pipe, one end of the closing mechanism passing through the closed end of the blind pipe and extending into the plug-in pipe; when the refrigeration pipe joint is inserted into the plug-in pipe and pushes the closing mechanism to move toward one end of the relay shell, the closing mechanism releases the blockage of the connecting through-hole, and a locking mechanism is provided in the plug-in pipe, the locking mechanism being used to lock the inserted refrigeration pipe joint.

[0007] Preferably, the closing mechanism includes a check plate coaxially arranged in the blind tube, a connecting mechanism is provided at one end of the check plate, the connecting mechanism passes through the closed end of the blind tube and extends to a ring plate provided in the plug-in tube, the ring plate is coaxially movably sleeved in the plug-in tube, the connecting mechanism includes a plurality of connecting rods, and the plurality of connecting rods are evenly distributed on the closed end of the blind tube in a circular direction around the axis of the connecting through hole, a connecting rod through hole is provided on the closed end of the blind tube corresponding to the connecting rod, and each of the connecting rods is sleeved with a spring, one end of the spring is connected to the closed end of the blind tube, and the other end is connected to the ring plate.

[0008] Preferably, the check plate may be arranged in a frustum, the connecting mechanism is connected to the upper bottom of the frustum, and the inner wall of the blind tube is arranged in a frustum with a diameter gradually decreasing from the open end to the closed end.

[0009] Preferably, the locking mechanism includes a locking nut that is rotatably sleeved on the plug-in tube, the locking nut is provided with an internal thread, and the outer wall of the refrigeration pipe joint is provided with an external pipe thread that can engage with the internal thread of the locking nut.

[0010] Preferably, the locking mechanism includes a locking tube coaxially sleeved on the plug-in tube at one end, internal threads are provided at both ends of the inner wall of the locking tube, external connecting threads are provided on the outer wall of the plug-in tube, and external pipe threads are provided on the outer wall of the refrigeration pipe joint, and the external connecting threads and the external pipe threads can be respectively engaged with the internal threads at both ends of the inner wall of the locking tube.

[0011] Preferably, a top ring is fixedly provided on the refrigeration pipe joint at one end of the external pipe thread away from the plug-in pipe.

[0012] Preferably, the plurality of fixed structures are equidistantly distributed in a circular direction along the horizontal direction of the relay shell, and a valve is provided on the relay shell. The valve includes a handle provided at the top of the relay shell, a rotating rod is provided at the bottom of the handle, and the rotating rod passes through the relay cavity and is provided with a valve flap.

[0013] Preferably, a base for adjusting the height of the relay housing is provided at the bottom of the relay housing.

[0014] Preferably, the relay housing is provided with relay through holes corresponding one to one with the blind tubes, and the blind tubes are connected with the relay cavity through the relay through holes.

[0015] On the other hand, the present invention further provides a refrigeration system, including a refrigeration pipeline and the pipeline relay module of the refrigeration system, wherein the end of the refrigeration pipeline is connected to the refrigeration pipeline joint.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] The utility model discloses a locking screw cap or a locking tube can be used to lock and fix the refrigeration pipe joint, which is convenient for quick replacement of pipes. When the refrigeration pipe joint is pushed into the plug-in pipe, the port of the refrigeration pipe joint contacts the ring plate, and the connecting rod pushes the check plate to move along the axis of the blind pipe toward the relay cavity, thereby releasing the blockage of the connecting through hole. When the refrigeration pipe joint is gradually withdrawn from the plug-in pipe, the spring restores the elastic deformation and pulls the check plate back to its original position, thereby blocking the connecting through hole and preventing the refrigerant in the relay cavity from flowing out. By pushing the refrigeration pipe joint in, the external pipe thread on the refrigeration pipe joint is meshed with the locking thread of the locking tube, and the fixing thread of the locking tube is screwed into the external connecting thread on the plug-in pipe. Therefore, when the refrigeration pipe joint is pushed into the plug-in pipe, the locking ring can be driven to rotate around its own axis and move along its axis toward the relay shell to realize the self-locking function of the refrigeration pipe joint. The connection mode of different fixing structures can be adjusted by rotating the valve disc with the handle.

[0018] The utility model improves the pipeline connection structure, makes it easy to add or reduce one or more refrigeration units in the cooling circuit, fully improves the working efficiency when adding or reducing modules, and greatly promotes the modular operation of the refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of embodiment 1 of the present utility model.

[0021] Figure 2 It is a cross-sectional schematic diagram of the first embodiment of the present utility model.

[0022] Figure 3 It is a cross-sectional schematic diagram of the blind tube and the sealing mechanism in the first embodiment of the present invention.

[0023] Figure 4 It is a structural diagram of the second embodiment of the present utility model.

[0024] Figure 5 It is an exploded view of the fixing structure in the second embodiment of the present utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the third embodiment of the present invention Figure 1 .

[0026] Figure 7 This is a schematic diagram of the structure of the third embodiment of the present invention Figure 2 .

[0027] Figure 8 It is an exploded view of the valve in the third embodiment of the present utility model.

[0028] Description of main reference numerals

[0029] 1. Relay housing; 101. Relay cavity; 102. Relay through hole; 2. Base; 3. Blind pipe; 301. Connecting through hole; 4. Plug-in pipe; 401. External connecting thread; 5. Locking screw cap; 6. Handle; 7. Valve disc; 8. Check plate; 9. Ring plate; 10. Connecting rod; 11. Spring; 12. Locking pipe; 1201. Fixed internal thread; 1202. Locking internal thread; 13. Refrigeration pipe joint; 1301. External pipe thread; 1302. Top ring. DETAILED DESCRIPTION

[0030] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0031] Example 1

[0032] like Figure 1-3 As shown, a pipeline relay module for a refrigeration system includes a relay shell 1 with a relay cavity 101 opened therein and several fixed structures for plugging in refrigeration pipe joints 13, the fixed structure including a blind tube 3 and a plug-in tube 4 coaxially connected to the closed end of the blind tube 3, the open end of the blind tube 3 passes through the interior of the relay shell 1 and is connected to the relay cavity 101, a connecting through-hole 301 connected to the plug-in tube 4 is opened on the closed end of the blind tube 3, a closing mechanism for sealing the connecting through-hole 301 is provided in the closed end of the blind tube 3, one end of the closing mechanism passes through the closed end of the blind tube 3 and extends into the plug-in tube 4, when the refrigeration pipe joint 13 is inserted into the plug-in tube 4 and pushes the closing mechanism to move toward one end of the relay shell 1, the closing mechanism releases the blockage of the connecting through-hole 301, and a locking mechanism is provided at the end of the plug-in tube 4 away from the blind tube 3, the locking mechanism is used to lock the inserted refrigeration pipe joint 13. The blind pipe 3 is a pipe with one end open and the other end closed. When the refrigeration pipe joint 13 is inserted into the plug-in pipe 4 and the closing mechanism is pushed to release the blockage of the connecting hole 301, the refrigerant can enter the relay cavity 101 from the refrigeration pipe joint 13 through the plug-in pipe 4, the connecting hole 301 and the blind pipe 3.

[0033] The closing mechanism includes a check plate 8 coaxially disposed within the blind tube 3. A connecting mechanism is provided at one end of the check plate 8. The connecting mechanism extends through the closed end of the blind tube 3 and extends into the plug-in tube 4, where a ring plate 9 is provided. The ring plate 9 is coaxially and movably sleeved within the plug-in tube 4. The connecting mechanism includes multiple connecting rods 10, which are uniformly distributed on the closed end of the blind tube 3 in a circular arrangement around the axis of the connecting through-hole 301. The closed end of the blind tube 3 has corresponding through-holes for the connecting rods 10. Each connecting rod 10 is sleeved with a spring 11. One end of the spring 11 is connected to the closed end of the blind tube 3, and the other end is connected to the ring plate 9. The connecting rods 10 are connected to the check plate 8 at one end and to the ring plate 9 at the other end, extending through the closed end of the blind tube 3.

[0034] like Figure 3 As shown, the check plate 8 can be configured as a truncated cone, with the connecting mechanism connected to the upper base of the cone (i.e., the smaller diameter end of the cone). The inner wall of the blind tube 3 is configured in a truncated cone shape with a gradually decreasing diameter from its open end toward the closed end (a bell-shaped shape, i.e., the diameter of the closed end of the blind tube 3 is smaller than the diameter of the open end of the blind tube 3). As the refrigeration pipe connector 13 is removed, the truncated cone-shaped check plate 8 moves toward one end of the plug-in tube 4. The corresponding truncated cone-shaped inner wall of the blind tube 3 cooperates with the truncated cone-shaped check plate 8 to gradually reduce the amount of refrigerant passing through as the refrigeration pipe connector 13 is withdrawn, thereby gradually blocking the connecting through-hole 301. Furthermore, by controlling the distance that the refrigeration pipe connector 13 pushes the check plate 8, the refrigerant flow rate can be indirectly controlled. According to Bernoulli's principle, the truncated cone-shaped inner wall of the blind tube 3 (bell-shaped) also serves to accelerate the flow rate.

[0035] The locking mechanism includes a locking nut 5 that is rotatably sleeved on the plug-in tube 4. The locking nut 5 is provided with an internal thread, and the outer wall of the refrigeration pipe joint 13 is provided with an external pipe thread 1301 that can engage with the internal thread of the locking nut 5.

[0036] A base 2 for adjusting the height of the relay housing 1 is provided at the bottom of the relay housing 1 . The height of the relay housing 1 can be adjusted by the base 2 to adapt to different models and types of instruments and equipment.

[0037] The relay housing 1 is provided with relay through holes 102 corresponding to the blind tubes 3 . The blind tubes 3 are connected to the relay cavity 101 through the relay through holes 102 . The relay through holes 102 can be threaded. The outer wall of the open end of the blind tube 3 is threadedly connected to the relay through holes 102 .

[0038] Example 2

[0039] The principle of this embodiment is basically the same as that of the first embodiment, except that, in terms of structure, Figure 4 、 5 As shown, in this embodiment, in order to realize that the refrigeration pipe joint 13 pushes the closing mechanism and simultaneously realizes the locking of the refrigeration pipe joint 13, as shown in FIG. Figure 5-8 As shown, the locking mechanism adopts a locking tube 12 with one end coaxially sleeved on the plug-in tube 4, and internal threads are provided at both ends of the inner wall of the locking tube 12. The outer wall of the plug-in tube 4 is provided with an external connecting thread 401, and the outer wall of the refrigeration pipe joint 13 is provided with a pipe external thread 1301. The external connecting thread 401 and the pipe external thread 1301 can be respectively engaged with the internal threads at both ends of the inner wall of the locking tube 12. For the convenience of description, the internal thread opened at one end of the inner wall of the locking tube 12 is named as the fixed internal thread 1201, and the internal thread opened at the other end of the inner wall is named as the locking internal thread 1202. The plug-in tube 4 is fixed, the locking tube 12 is sleeved on the plug-in tube 4, and the external connecting thread 401 on the outer wall of the plug-in tube 4 is provided. The connecting thread 401 is engaged with the fixed internal thread 1201 of the locking tube 12. When the refrigeration pipe connector 13 is inserted into the plug-in tube 4 and is about to completely push the check plate 8 into place, the external tube thread 1301 of the refrigeration pipe connector 13 begins to engage with the locking internal thread 1202 of the locking tube 12. Because the refrigeration pipe connector 13 and the plug-in tube 4 are not rotatable, when the refrigeration pipe connector 13 moves toward the relay shell 1, the locking tube 12 will move along its own axis toward the relay shell 1 while rotating around its own axis under the cooperation of the external connecting thread 401 and the fixed internal thread 1201, and the external tube thread 1301 and the locking internal thread 1202. In order to strengthen the sealing of the refrigeration pipe joint 13, a top ring 1302 is fixedly sleeved on the end of the external pipe thread 1301 of the refrigeration pipe joint 13 away from the plug-in pipe 4. When the refrigeration pipe joint 13 pushes the closing mechanism to completely release the blockage of the connecting through hole 301, the two ends of the locking tube 12 are respectively screwed with the external connecting thread 401 of the plug-in pipe 4 and the external pipe thread 1301 of the refrigeration pipe joint 13, and the top ring 1302 just conflicts with the opening of the locking ring toward the refrigeration pipe joint 13, thereby completing the sealing.

[0040] Example 3

[0041] Based on the structures of the first and second embodiments, a plurality of fixed structures are distributed equidistantly along the horizontal direction of the relay housing 1 in a circular direction. In this embodiment, Figure 7-8 As shown, a valve is provided on the relay housing 1, and the valve includes a handle 6 provided at the top of the relay housing 1, a rotating rod provided at the bottom of the handle 6, and a valve flap 7 provided in the relay cavity 101 through the rotating rod. When the relay housing 1 is in a square configuration, a fixed structure can be provided on each of the four sides of the square, and a valve can be provided at the top of the relay housing 1. When the relay housing 1 is in a spherical configuration, more valves can be evenly distributed at equal distances. The connection condition can be changed by rotating the valve by the handle 6. When four fixed structures are provided, the direction of the valve flap 7 can be adjusted by rotating the handle 6 to achieve one-to-two, three-to-four, or one-to-four, or two-to-three. Furthermore, a stop valve can be provided at the blind pipe 3 of each fixed structure to individually adjust the opening and closing of the blind pipe 3.

[0042] Example 4

[0043] This embodiment further provides a cooling system, including a refrigeration pipe and a pipe relay module of the refrigeration system described in Embodiment 1 and / or Embodiment 2 and / or Embodiment 3, wherein the end of the refrigeration pipe is connected to a refrigeration pipe joint.

[0044] The principles and advantages of the present invention are as follows: when the locking screw cap 5 is used, it is only necessary to insert the refrigeration pipe joint 13 and engage the locking screw cap 5 with the external pipe thread 1301 of the refrigeration pipe joint 13. Similarly, when disassembling, it is only necessary to reverse the locking screw cap 5. When the locking tube 12 is used to connect the pipeline, the locking tube 12 is first sleeved on the plug-in tube 4, and the locking tube 12 is rotated so that the fixed internal thread 1201 of the locking tube 12 is screwed with the external connection thread 401 of the plug-in tube 4, and then the refrigeration pipe joint 13 is inserted into the plug-in tube 4. The refrigeration pipe joint 13 inserted into the plug-in tube 4 will conflict with the ring plate 9, and the ring plate 9 will push the check plate 8 toward the relay shell 1, thereby releasing the blockage of the connecting through hole 301, and the refrigerant can be connected from the refrigeration pipe The head 13 enters the relay shell 1 and enters another refrigeration pipe joint 13 through the relay shell 1. When the refrigeration pipe joint 13 is inserted into a certain position, the check plate 8 has not been fully pushed into place. The outer tube thread 1301 on the refrigeration pipe joint 13 is engaged with the locking inner thread 1202 of the locking tube 12. Through the cooperation of the outer tube thread 1301 and the locking inner thread 1202, the external connecting thread 401 and the fixed inner thread 1201, the locking tube 12 will rotate around its own axis while moving toward the blind pipe 3 until the refrigeration pipe joint 13 is plugged into place, and the top ring 1302 conflicts with the corresponding end of the locking tube 12. When it needs to be disassembled, it is only necessary to manually rotate the locking tube 12 in the opposite direction to push the refrigeration pipe joint 13 to move outward. When the refrigeration pipe joint 13 moves outward, the spring 11 on the connecting rod 10 recovers its elastic deformation and resets, driving the ring plate 9 and the check plate 8 to reset as the refrigeration pipe joint 13 moves, and then the connecting through hole 301 of the blind pipe 3 is blocked. When the refrigeration pipe joint 13 is not inserted into the plug-in pipe 4, in addition to the position of the check plate 8 being limited by the spring 11 (that is, the check plate 8 conflicts with the closed end of the blind pipe 3), the refrigerant coming out of the remaining refrigeration pipe joints 13 in the relay housing 1 will also form a certain pressure in the relay cavity 101, pressing the check plate 8 against the closed end of the blind pipe 3 to block the connection hole. In addition, when vacuuming is required, in addition to the plug-in pipe 4 that is not inserted with the refrigeration pipe joint 13, a plug needs to be inserted. The vacuum pump is connected to one of the refrigeration pipe joints 13, and the vacuum pump will form a negative pressure in the relay chamber 101, so that the check plate 8 is separated from the tension of the spring 11, and the blockage of the connecting hole 301 is automatically released until the vacuum is completed. At this time, the pressure in the refrigeration pipe joint 13 and the relay chamber 101 is consistent, and the spring 11 restores its elastic deformation to pull back the check plate 8 to automatically complete the blockage of the connecting hole 301. In addition to connecting the vacuum pump from the refrigeration pipe joint 13, the vacuum pump can also be directly connected through the plug-in tube 4. In addition, the connected parts in the entire device are correspondingly provided with sealing rings for sealing. Among them, the sealing ring of the connecting hole 301 and the check plate 8 is set at the connecting hole 301, and will not affect the flow of refrigerant between the check plate 8 and the inner wall of the blind pipe 3.

[0045] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipeline relay module for a refrigeration system, comprising a relay housing (1) with a relay cavity (101) formed therein, characterized in that: It also includes a refrigeration pipe joint (13), and a plurality of fixed structures for plugging the refrigeration pipe joint (13) are provided on the relay shell (1), the fixed structure including a blind tube (3), the open end of the blind tube (3) is connected to and communicates with the relay cavity (101), the closed end of the blind tube (3) is provided with a connecting through hole (301), a plug-in tube (4) is plugged into the connecting through hole (301), and a closing mechanism for blocking the connecting through hole (301) is provided in the closed end of the blind tube (3), one end of the closing mechanism passes through the closed end of the blind tube (3) and extends into the plug-in tube (4); When the refrigeration pipe joint (13) is inserted into the plug-in tube (4) and the closing mechanism is pushed toward one end of the relay housing (1), the closing mechanism releases the blockage of the connecting through hole (301). A locking mechanism is provided in the plug-in tube (4), and the locking mechanism is used to lock the inserted refrigeration pipe joint (13).

2. The pipeline relay module of the refrigeration system according to claim 1, characterized in that: The closing mechanism comprises a check plate (8) coaxially arranged in the blind tube (3), a connecting mechanism is provided at one end of the check plate (8), the connecting mechanism passes through the closed end of the blind tube (3) and extends to a ring plate (9) provided in the plug-in tube (4), the ring plate (9) is coaxially movably sleeved in the plug-in tube (4), the connecting mechanism comprises a plurality of connecting rods (10), the plurality of connecting rods (10) are uniformly distributed on the closed end of the blind tube (3) in a circumferential direction around the axis of the connecting through hole (301), a connecting rod (10) through hole is opened on the closed end of the blind tube (3) corresponding to the connecting rod (10), and a spring (11) is sleeved on each of the connecting rods (10), one end of the spring (11) is connected to the closed end of the blind tube (3), and the other end is connected to the ring plate (9).

3. The pipeline relay module of the refrigeration system according to claim 2, characterized in that: The check plate (8) is a truncated cone structure, the connecting mechanism is connected to the upper bottom of the truncated cone, and the inner wall of the blind tube (3) is arranged in a truncated cone shape with a gradually decreasing diameter along the direction from the open end to the closed end.

4. The pipeline relay module of the refrigeration system according to claim 1, characterized in that: The locking mechanism comprises a locking screw cover (5) that is rotatably sleeved on the plug-in pipe (4) with a fixed axis, an internal thread being provided in the locking screw cover (5), and an external pipe thread (1301) that can mesh with the internal thread of the locking screw cover (5) being provided on the outer wall of the refrigeration pipe joint (13).

5. The pipeline relay module of the refrigeration system according to claim 1, characterized in that: The locking mechanism comprises a locking tube (12) having one end coaxially sleeved on the plug-in tube (4), wherein both ends of the inner wall of the locking tube (12) are provided with internal threads, the outer wall of the plug-in tube (4) is provided with an external connecting thread (401), and the outer wall of the refrigeration pipe joint (13) is provided with an external pipe thread (1301), and the external connecting thread (401) and the external pipe thread (1301) can respectively engage with the internal threads at both ends of the inner wall of the locking tube (12).

6. The pipeline relay module of the refrigeration system according to claim 5, characterized in that: A top ring (1302) is fixedly provided on the refrigeration pipe joint (13) at one end of the pipe external thread (1301) away from the plug-in pipe (4).

7. The pipeline relay module of the refrigeration system according to claim 1, characterized in that: The plurality of fixed structures are equidistantly distributed along the horizontal direction of the relay housing (1) in a circumferential direction. The relay housing (1) is provided with a valve, which comprises a handle (6) provided at the top end of the relay housing (1). A rotating rod is provided at the bottom end of the handle (6). The rotating rod extends through the relay cavity (101) and is provided with a valve flap (7).

8. The pipeline relay module of the refrigeration system according to claim 1, characterized in that: The bottom of the relay housing (1) is provided with a base (2) which can be used to adjust the height of the relay housing (1).

9. The pipeline relay module of the refrigeration system according to claim 1, characterized in that: The relay housing (1) is provided with relay through holes (102) corresponding one-to-one to the blind tubes (3), and the blind tubes (3) are connected to the relay cavity (101) via the relay through holes (102).

10. A refrigeration system comprising a refrigeration pipe, characterized in that: It also includes a pipeline relay module of the refrigeration system according to any one of claims 1 to 9, and the end of the refrigeration pipeline is connected to the refrigeration pipeline joint.

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