CN216479421U - Connecting structure of refrigerant piping of industrial refrigerating device - Google Patents
Connecting structure of refrigerant piping of industrial refrigerating device Download PDFInfo
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- CN216479421U CN216479421U CN202123196816.0U CN202123196816U CN216479421U CN 216479421 U CN216479421 U CN 216479421U CN 202123196816 U CN202123196816 U CN 202123196816U CN 216479421 U CN216479421 U CN 216479421U
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Abstract
The utility model discloses a connecting structure of a refrigerant tubing of an industrial refrigerating device, which comprises a stop valve and a connecting unit; the surface of the stop valve is provided with an anti-retreat unit and a plug, the left side of the stop valve is provided with a nut, the nut is connected with a refrigerant pipe, and the joint of the nut and the refrigerant pipe is an inclined plane; the connecting unit includes sealing bush, go-between, first mounting groove, second mounting groove, spread groove, screw ring and thread groove, the spread groove sets up the internal surface at the nut, is provided with the go-between in the spread groove, spread groove and go-between sealing connection, the go-between is connected with sealing bush, sealing bush's the internal surface of surface laminating nut, sealing bush's both sides are provided with first mounting groove and second mounting groove respectively, operation steps when simplifying the connection are connected to first mounting groove connecting plug, improve pipe connection's leakproofness, can effectively avoid the refrigerant to take place to reveal.
Description
Technical Field
The utility model relates to a pipe connection technical field specifically is a connection structure of industry refrigerating plant's refrigerant piping.
Background
Generally, an air conditioner includes two parts, an indoor unit and an outdoor unit, which are connected to each other by a refrigerant pipe through which a refrigerant flows. Most of the existing refrigerant pipes use copper pipes, but the copper pipes are expensive, so that the installation cost is increased. Recently, more and more refrigerant pipes use cheap aluminum pipes to replace copper pipes, but the aluminum pipes have weak corrosion resistance, and a layer of resin needs to be coated on the surface of the aluminum pipes to improve the corrosion resistance;
a connector structure of refrigerant pipe disclosed in patent publication No. CN 113294610 a in the prior art includes a stop valve, a connection component and a refrigerant pipe, the stop valve is connected with the connection component, one end of the refrigerant pipe is disposed inside the connection component, and the connection component includes: the upper end of the first joint nut is combined with the stop valve; the second joint nut is in threaded connection with the lower end of the first joint nut; the sealing ring is arranged in the first joint nut, the upper end of the sealing ring is contacted with the bottom of the stop valve, and the lower end of the sealing ring is contacted with one end of the refrigerant pipe; the plum blossom check ring is arranged in the second joint nut and used for preventing the refrigerant pipe from being separated from the connecting part, and a resin layer is coated outside the refrigerant pipe;
when the pipeline is connected, the operation is complex, the sealing effect is not enough, and the looseness is easy to happen, so that the leakage of the refrigerant can be caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a connection structure of industry refrigerating plant's refrigerant piping, operating procedure when simplifying the connection improves the leakproofness of pipe connection, can effectively avoid the refrigerant to take place to reveal, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a connecting structure of a refrigerant pipe of an industrial refrigerating device comprises a stop valve and a connecting unit;
a stop valve: the surface of the stop valve is provided with an anti-back unit and a plug, the left side of the stop valve is provided with a nut, the nut is connected with a refrigerant pipe, and the joint of the nut and the refrigerant pipe is an inclined plane;
a connection unit: include sealing bush, go-between, first mounting groove, second mounting groove, spread groove, screw ring and thread groove, the spread groove sets up the internal surface at the nut, is provided with the go-between in the spread groove, spread groove and go-between sealing connection, the go-between is connected with sealing bush, sealing bush's the internal surface of surface laminating nut, sealing bush's both sides are provided with first mounting groove and second mounting groove respectively, first mounting groove connecting plug, refrigerant pipe is connected to the second mounting groove, the thread ring sets up the surface at the plug, the thread groove sets up the internal surface at the nut, the inseparable threaded connection screw ring of thread groove, and the length of thread groove is less than the length of thread ring.
The tip of refrigerant pipe closely laminates the inclined plane at the nut, refrigerant union coupling is in the second mounting groove, aim at thread groove and screw ring, the nut rotates, make the plug enter into in the nut, the plug enters into first mounting groove, plug extrusion seal bush, seal bush passes through the go-between top tightly in the spread groove, seal bush receives the reverse acting force of go-between, make seal bush closely laminate refrigerant pipe and plug, leakproofness when improving refrigerant pipe and plug connection, avoid the refrigerant to reveal, and can avoid refrigerant pipe and plug to contact and take place chemical reaction, and service life is prolonged, can lock nut and plug fixedly through preventing moving back the unit.
Further, the anti-moving unit includes connecting plate, bolt and screw, the connecting plate totally four, and per two connecting plates are a set of, and two sets of connecting plates set up respectively on stop valve and nut, have seted up the screw on the connecting plate, are provided with the bolt corresponding with the screw on the screw, through the connecting plate interconnect of bolt on to stop valve and nut, avoid receiving vibrations or other factors influence to take place not hard up because of plug and nut and cause the refrigerant to reveal, improved the leakproofness.
Further, still including expanding the pipe portion, expanding the pipe portion and setting up at the tip of refrigerant pipe, the shape second mounting groove of expanding the pipe portion cooperatees, through the zonulae occludens of expanding pipe portion with the second mounting groove, has improved the leakproofness of refrigerant pipe and seal bush.
The protective layer is arranged on the outer surface of the refrigerant pipe and fixedly connected with the refrigerant pipe, the protective layer protects the refrigerant pipe, and the service life of the refrigerant pipe is prolonged.
Further, still include the sealing washer, the sealing washer sets up between refrigerant pipe and nut, and sealing washer zonulae occludens refrigerant pipe and nut improves leakproofness and the stability of being connected between refrigerant pipe and the nut through the sealing washer.
Further, still include the cuttage ring, the setting of cuttage ring is on the plug, and the shape and the first mounting groove of cuttage ring cooperate, through the zonulae occludens of cuttage ring and first mounting groove, have improved the leakproofness of plug and sealed bush.
Compared with the prior art, the beneficial effects of the utility model are that: has the following advantages:
1. the nut is connected with the plug through the threaded ring and the threaded groove, the expanded pipe part and the cutting ring are tightly connected through the sealing bush, the sealing performance between the refrigerant pipe and the plug is improved, the refrigerant is prevented from leaking, the refrigerant pipe can be prevented from contacting with the plug, the chemical reaction is avoided, and the service life is prolonged;
2. the stop valve and the connecting plate on the nut are connected with each other through the bolt, so that the leakage of a refrigerant caused by looseness caused by the influence of vibration or other factors on the plug and the nut is avoided, and the sealing performance is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the partial cross-sectional structure of the present invention;
fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 2 according to the present invention.
In the figure: the sealing device comprises a stop valve 1, a connecting unit 2, a sealing bush 21, a connecting ring 22, a first mounting groove 23, a second mounting groove 24, a connecting groove 25, a threaded ring 26, a threaded groove 27, a withdrawal prevention unit 3, a connecting plate 31, a bolt 32, a threaded hole 33, a plug 4, a nut 5, a refrigerant pipe 6, an expanded pipe 7, a protective layer 8, a sealing ring 9 and a skewing ring 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment provides a technical solution: a connecting structure of a refrigerant pipe of an industrial refrigerating device comprises a stop valve 1 and a connecting unit 2;
a stop valve 1: the surface of the stop valve is provided with a withdrawal prevention unit 3 and a plug 4, the left side of the stop valve 1 is provided with a nut 5, the nut 5 is connected with a refrigerant pipe 6, and the joint of the nut 5 and the refrigerant pipe 6 is an inclined plane;
the connection unit 2: the sealing bushing comprises a sealing bushing 21, a connecting ring 22, a first mounting groove 23, a second mounting groove 24, a connecting groove 25, a threaded ring 26 and a threaded groove 27, wherein the connecting groove 25 is arranged on the inner surface of the nut 5, the connecting ring 22 is arranged in the connecting groove 25, the connecting groove 25 is connected with the connecting ring 22 in a sealing manner, the connecting ring 22 is connected with the sealing bushing 21, the surface of the sealing bushing 21 is attached to the inner surface of the nut 5, the first mounting groove 23 and the second mounting groove 24 are respectively arranged on two sides of the sealing bushing 21, the plug 4 is connected with the first mounting groove 23, the second mounting groove 24 is connected with a refrigerant pipe 6, the threaded ring 26 is arranged on the outer surface of the plug 4, the threaded groove 27 is arranged on the inner surface of the nut 5, the threaded groove 27 is tightly connected with the threaded ring 26 in a threaded manner, and the length of the threaded groove 27 is smaller than that of the threaded ring 26.
The tip of refrigerant pipe 6 closely laminates the inclined plane at nut 5, refrigerant pipe 6 connects in second mounting groove 24, aim at thread groove 27 and screw ring 26, rotate nut 5, make plug 4 enter into in the nut 5, plug 4 enters into first mounting groove 23, plug 4 extrusion sealing bush 21, sealing bush 21 passes through go-between 22 top tightly in spread groove 25, sealing bush 21 receives the reverse effort of go-between 22, make sealing bush 21 closely laminate refrigerant pipe 6 and plug 4, improve the leakproofness when refrigerant pipe 6 and plug 4 are connected, avoid the refrigerant to reveal, and can avoid refrigerant pipe 6 and plug 4 to meet and trigger the biochemical reaction, and service life is prolonged, can lock nut 5 and plug 4 fixedly through preventing moving back unit 3.
Prevent moving back unit 3 and include connecting plate 31, bolt 32 and screw 33, connecting plate 31 is totally four, per two connecting plates 31 are a set of, two sets of connecting plates 31 set up respectively on stop valve 1 and nut 5, screw 33 has been seted up on the connecting plate 31, be provided with the bolt 32 corresponding with screw 33 on the screw 33, connecting plate 31 interconnect on stop valve 1 and the nut 5 through bolt 32, avoid receiving vibrations or other factors influence because of plug 4 and nut 5 and take place the refrigerant that becomes flexible and cause and reveal, the leakproofness has been improved.
Still including expanding the pipe portion 7, expanding the pipe portion 7 and setting up at the tip of refrigerant pipe 6, the shape second mounting groove 24 of expanding the pipe portion 7 cooperatees, through the zonulae occludens of expanding pipe portion 7 and second mounting groove 24, has improved the leakproofness of refrigerant pipe 6 and sealing bush 21.
Still include the inoxidizing coating 8, inoxidizing coating 8 sets up at the surface of refrigerant pipe 6, and inoxidizing coating 8 fixed connection refrigerant pipe 6 forms the protection to refrigerant pipe 6 through inoxidizing coating 8, improves refrigerant pipe 6's life.
Still include sealing washer 9, sealing washer 9 sets up between refrigerant pipe 6 and nut 5, and sealing washer 9 zonulae occludens refrigerant pipe 6 and nut 5 improves leakproofness and the stability of being connected between refrigerant pipe 6 and the nut 5 through sealing washer 9.
Still include the cuttage ring 10, the cuttage ring 10 sets up on the plug 4, and the shape and the first mounting groove 23 of cuttage ring 10 cooperate, through the zonulae occludens of cuttage ring 10 and first mounting groove 23, has improved the leakproofness of plug 4 and sealed bush 21.
The utility model provides a pair of connection structure of industry refrigerating plant's refrigerant piping's theory of operation as follows: the refrigerant pipe 6 is protected by the protective layer 8, the service life of the refrigerant pipe 6 is prolonged, the end part of the refrigerant pipe 6 is tightly attached to the inclined surface of the nut 5, the sealing performance and the stability of the connection between the refrigerant pipe 6 and the nut 5 are improved by the sealing ring 9, the refrigerant pipe 6 is connected in the second installation groove 24, the sealing performance between the refrigerant pipe 6 and the sealing bush 21 is improved by the tight connection between the expanded pipe part 7 and the second installation groove 24, the thread groove 27 is aligned with the thread ring 26, the nut 5 is rotated, the plug 4 enters the nut 5, the plug 4 and the inserting ring 10 enter the first installation groove 23, the sealing performance between the plug 4 and the sealing bush 21 is improved by the tight connection between the inserting ring 10 and the first installation groove 23, the plug 4 presses the sealing bush 21, the sealing bush 21 is tightly pressed in the connection groove 25 by the connection ring 22, and the sealing bush 21 is subjected to the reverse acting force of the connection ring 22, make sealing bush 21 closely laminate refrigerant pipe 6 and plug 4, leakproofness when improving refrigerant pipe 6 and plug 4 and connecting, and can avoid refrigerant pipe 6 and plug 4 to meet and trigger the biochemical reaction, through connecting plate 31 interconnect on bolt 32 to stop valve 1 and the nut 5, avoid receiving vibrations or other factors influence to take place to become flexible the refrigerant that causes and reveal because of plug 4 and nut 5.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. A connection structure of a refrigerant pipe of an industrial refrigeration device, characterized in that: comprises a stop valve (1) and a connecting unit (2);
stop valve (1): the surface of the stop valve is provided with a retreat prevention unit (3) and a plug (4), the left side of the stop valve (1) is provided with a nut (5), the nut (5) is connected with a refrigerant pipe (6), and the joint of the nut (5) and the refrigerant pipe (6) is an inclined surface;
connection unit (2): comprises a sealing bush (21), a connecting ring (22), a first mounting groove (23), a second mounting groove (24), a connecting groove (25), a threaded ring (26) and a threaded groove (27), wherein the connecting groove (25) is arranged on the inner surface of the nut (5), the connecting ring (22) is arranged in the connecting groove (25), the connecting groove (25) is connected with the connecting ring (22) in a sealing way, the connecting ring (22) is connected with the sealing bush (21), the surface of the sealing bush (21) is attached to the inner surface of the nut (5), the first mounting groove (23) and the second mounting groove (24) are respectively arranged on two sides of the sealing bush (21), the first mounting groove (23) is connected with a plug (4), the second mounting groove (24) is connected with a refrigerant pipe (6), the threaded ring (26) is arranged on the outer surface of the plug (4), and the threaded groove (27) is arranged on the inner surface of the nut (5), the thread groove (27) is tightly screwed with the thread ring (26), and the length of the thread groove (27) is less than that of the thread ring (26).
2. The connection structure of the refrigerant pipe of the industrial refrigeration apparatus according to claim 1, characterized in that: prevent moving back unit (3) and include connecting plate (31), bolt (32) and screw (33), connecting plate (31) are totally four, and per two connecting plates (31) are a set of, and two sets of connecting plates (31) set up respectively on stop valve (1) and nut (5), have seted up screw (33) on connecting plate (31), are provided with on screw (33) with screw (33) corresponding bolt (32).
3. The connection structure of the refrigerant pipe of the industrial refrigeration apparatus according to claim 1, characterized in that: the refrigerant pipe is characterized by further comprising a pipe expanding portion (7), wherein the pipe expanding portion (7) is arranged at the end portion of the refrigerant pipe (6), and the shape second installation grooves (24) of the pipe expanding portion (7) are matched.
4. The connection structure of the refrigerant pipe of the industrial refrigeration apparatus according to claim 1, characterized in that: the refrigerant pipe is characterized by further comprising a protective layer (8), wherein the protective layer (8) is arranged on the outer surface of the refrigerant pipe (6), and the protective layer (8) is fixedly connected with the refrigerant pipe (6).
5. The connection structure of the refrigerant pipe of the industrial refrigeration apparatus according to claim 1, characterized in that: still include sealing washer (9), sealing washer (9) set up between refrigerant pipe (6) and nut (5), and sealing washer (9) zonulae occludens refrigerant pipe (6) and nut (5).
6. The connection structure of the refrigerant pipe of the industrial refrigeration apparatus according to claim 1, characterized in that: still include cuttage ring (10), cuttage ring (10) set up on plug (4), and the shape and the first mounting groove (23) of cuttage ring (10) cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123196816.0U CN216479421U (en) | 2021-12-20 | 2021-12-20 | Connecting structure of refrigerant piping of industrial refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123196816.0U CN216479421U (en) | 2021-12-20 | 2021-12-20 | Connecting structure of refrigerant piping of industrial refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216479421U true CN216479421U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123196816.0U Active CN216479421U (en) | 2021-12-20 | 2021-12-20 | Connecting structure of refrigerant piping of industrial refrigerating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216479421U (en) |
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2021
- 2021-12-20 CN CN202123196816.0U patent/CN216479421U/en active Active
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