TWM513990U - Refrigerant pipe joint structure - Google Patents

Description

Refrigerant pipe joint structure

This creation is related to a technical field related to a pipeline connection assembly, in particular, a refrigerant pipe joint structure that can complete a pipeline connection without a process such as reaming or welding.

Referring to FIG. 10, when the conventional air conditioning apparatus (not shown) is connected to the pipe 91, the outer tapered section 921 of the refrigerant pipe joint 92 and the inner tapered section 931 of the nut 93 precede the pipe 91. The socket end forms a matching bell mouth 911 (taper hole), and the nut 93 is screwed to the refrigerant pipe joint 92, and the refrigerant pipe joint 92 and the nut 93 (the outer taper segment 921 and the inner taper segment 931) are respectively The inner and outer diameter surfaces of the bell 911 (cone hole) of the pipe 91 are pressed, and the connection between the pipe 91 and the air conditioner is completed by a hard pressing method.

When the pipe 91 is to be connected to the air-conditioning device, the bell mouth 911 (cone hole) is formed before the sleeve end of the pipe 91, and the formation of the bell mouth 911 (cone hole) must rely on the reamer (not shown) The method is formed by processing a hole in the end of the pipe 91 through a hole expanding process.

Referring to Fig. 11, another embodiment of the connection of the conventional pipe 91 is in addition to the above-mentioned connection method using a hard and positive lock. Using the welding equipment, the pipe 91 is directly connected to the refrigerant pipe joint 94 of the air conditioner through a welding process.

In view of the above-mentioned pipeline connection, it is necessary to pass through the hole expanding process or the welding process. The limitation of this creation is that through the design and improvement of the structure, it is proposed that the pipeline connection can be improved without the need of a reaming process or a welding process.

In order to achieve the above object, the present invention provides a refrigerant pipe joint structure, which comprises a joint body, at least one sleeve end formed on the joint body, and at least two front and rear first and second clamp rings accommodated in the socket end. And at least one screwing sleeve end forces the hollow bolts deformed by the first and second clamping rings. The sleeve end comprises an open operation space, a through sleeve end formed in the operation space, and a shaft tube connecting the joint body and two inner thread segments and a diagonal section respectively formed on the inner diameter surface of the sleeve end . The first and second clamping rings abut each other and are sleeved on the outer circumference of the shaft tube. By the composition of the above components, a pipe is provided to extend the hollow bolt, the first and second clamping rings, and is sleeved on the outer circumference of the shaft tube (the inner diameter surfaces of the first and second clamping rings), and the hollow bolt screwing sleeve is matched The displacement generated by the joint forces the first and second clamping rings to plastically deform, and the pipe and the shaft tube are pressed to achieve the purpose of pipe connection, in addition to facilitating construction, and no need for reaming or welding.

1‧‧‧Connector body

11‧‧‧ socket

111‧‧‧Operating space

112‧‧‧ shaft tube

113‧‧‧Threaded section

114‧‧‧ oblique section

2‧‧‧First clamping ring

21‧‧‧First oblique side

22‧‧‧ first section

3‧‧‧Second clamping ring

31‧‧‧Second oblique section

32‧‧‧Second section

4‧‧‧ hollow bolts

41‧‧‧Bolt hole

42‧‧‧ external thread

43‧‧‧Multi-angle head

44‧‧‧Bolt oblique

5‧‧‧Connector body

51, 52‧‧‧ Sockets

6‧‧‧Connector body

61, 62, 63‧‧‧ sockets

7‧‧‧Connector body

71‧‧‧Control bolt

72‧‧‧ Cover

73, 74‧‧‧ Sockets

731, 741‧‧‧ shaft tube

75‧‧‧ valve hole

<知知>

91‧‧‧ pipes

911‧‧‧ bell mouth

92‧‧‧Refrigerant pipe joints

921‧‧‧outer cone

93‧‧‧ Nuts

931‧‧‧Inner cone

94‧‧‧ refrigerant pipe joint

Figure 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the embodiment shown in Fig. 1.

Fig. 3 is a schematic cross-sectional view showing the embodiment shown in Fig. 1.

Fig. 4 is a perspective view showing a second embodiment of the present creation.

Figure 5 is a schematic cross-sectional view of the embodiment shown in Figure 4.

Fig. 6 is a perspective view showing a third embodiment of the present creation.

Figure 7 is a perspective view showing a fourth embodiment of the present creation.

Figure 8 is an exploded perspective view of the embodiment shown in Figure 7.

Figure 9 is a schematic cross-sectional view of the embodiment shown in Figure 7.

Figure 10 is a schematic diagram of the connection of a conventional refrigerant pipe joint.

Figure 11 is a schematic view showing another connection of a refrigerant pipe joint.

Hereinafter, the embodiment of the present refrigerant pipe joint structure will be further described with reference to the related drawings. In order to facilitate the understanding of the present embodiment, the same parts are denoted by the same symbols.

Referring to FIGS. 1 to 3, the refrigerant pipe joint structure includes a joint body 1, at least one sleeve end 11 formed on the joint body 1, and at least two front and rear capacities placed on the socket end 11 And two clamping rings 2, 3, and at least one screwing socket end 11, and pressing the hollow bolts 4 deformed by the first and second clamping rings 2, 3.

The sleeve end 11 has an open operation space 111, a through sleeve end 11 formed in the operation space 111, and a shaft tube 112 communicating with the joint body 1 and two inner diameters respectively formed at the sleeve end 11 Internal thread at both ends of the face Segment 113 and oblique segment 114. When implemented, the joint body 1 can be integrally formed with an air conditioner (not shown) as a refrigerant inlet and outlet.

The first clamping ring 2 is sleeved on the outer circumference of the shaft tube 112, two The ends respectively have a first oblique face 21 and a first sectional face 22, and the first inclined face 21 matches the inclined section 114. In implementation, the first clamping ring 2 is selected from non-metallic materials having plastic deformation capabilities, such as plastic, rubber, and the like.

The second clamping ring 3 is sleeved on the outer circumference of the shaft tube 112, two The ends respectively have a second inclined section 31 and a second sectional section 32, and the second sectional section 32 is abutted against the first sectional section 22. In implementation, the second clamping ring 3 is selected from a metal material having a plastic deformation capability.

The hollow bolt 4 has an axially extending bolt body and a The bolt hole 41 formed by the axial through bolt body is respectively formed on the outer ends of the outer surface of the bolt body, and the thread 42 and the polygonal head 43 are respectively matched, and the external thread 42 matches the internal thread 113 of the socket end 11 and is formed on the bolt The hole 41 is different from the other end of the polygonal head 43, and is aligned with the second inclined surface 31.

Therefore, the above is a preferred embodiment of the present invention, which is cold. The introduction of the various parts of the medium pipe joint structure, and then the assembly method and the use characteristics of the present invention are as follows: First, the joint body 1 is different from the other end of the socket end 11 to an air conditioning device (not shown), when the pipe 91. When connecting to the air conditioner, the hollow bolt 4, the second clamping ring 3, and the first clamping ring 2 are sequentially placed on the pipe. 91, the outer circumference, the pipe 91 is inserted into the operation space 111 of the socket section 11, and the shaft tube 112 is inserted into the inner diameter surface of the pipe 91. In this way, the hollow bolt 4 is screwed to the socket portion 11, and the second and a clamping ring 3, 2 are displaced to the closed end of the operating space 111, so that the first oblique surface 21 of the first clamping ring 2 is caused. The slanting section 114 of the inner diameter surface of the socket end 11 forms a slanting engagement, and the second slanting surface 31 of the second clamping ring 3 forms a slanting engagement with the bolt inclined surface 44 of the hollow bolt 4.

Forcing the first and second clamping rings 2, 3 to deform, and the shape of the tube 91 The pressing force makes the inner diameter surface of the pipe 91 tightly conform to the outer diameter of the shaft tube 112. In this way, the connection between the joint body 1 and the pipe material 91 can be completed, and no steps such as reaming or welding are required at all, which is convenient for the user to construct.

Please refer to Figures 4 and 5 for the implementation of the connector body of this creation. In the form of a two-way joint. The utility model comprises a plurality of connecting portions 51 and 52 formed at two ends of the joint body 5, a plurality of first and second clamping rings 2 and 3 respectively accommodated in the sleeve portions 51 and 52, and a plurality of screwing sleeves respectively. The segments 51, 52 are configured to urge the hollow bolts 4 deformed by the first and second clamping rings 2, 3. The above-mentioned structure and operation mode of each of the socket segments 51, 52, the first and second clamping rings 2, 3 and the hollow bolt 4 are the same as those of the above embodiment, and therefore will not be further described. By means of the joint body 5 of the double-pass form, the two pipes 91 can be connected to extend the length of the pipe 91.

Please refer to Figure 6 for the joint body of this creation. The shape of the tee joint. The utility model comprises a joint body 6 having a T-shaped profile, a plurality of joints formed on the three end sides of the joint body 6, and the socket ends 61, 62, 63 communicating with each other, and the plurality of socket portions 61, 62, 63 respectively. First and second clamping rings 2, 3, And a plurality of hollow bolts 4 for respectively deforming the first and second clamping rings 2, 3 by screwing the respective sleeve segments 61, 62, 63 respectively. The above-mentioned structure and operation mode of each of the socket segments 61, 62, 63, the first and second clamping rings 2, 3 and the hollow bolt 4 are the same as those of the above embodiment, and therefore will not be further described. The T-shaped joint body 6 is provided to respectively provide three pipes 91 to be inserted into the respective socket ends 61, 62, 63, and the first and second clamps are accommodated in the socket ends 61, 62, and 63. The rings 2, 3 and the hollow bolts 4 are held to complete the connection of the three tubes 91.

Please refer to Figures 7 to 9 for the joint body of this creation. The form of the control valve includes a joint body 7, a control plug 71 screwed to the joint body 7, a cover 72 screwed to the joint body 7, and a plurality of sleeve segments 73, 74 formed on the joint body 7. And the plurality of first and second clamping rings 2, 3 and the plurality of sleeves 73, 74 respectively engaged with the sleeve portions 73, 74, respectively, and the first and second clamping rings 2 are forced. 3 deformed hollow bolts 4. The structure and operation mode of each of the socket segments 73, 74, the first and second clamping rings 2, 3 and the hollow bolt 4 are the same as those of the above embodiment, and therefore will not be further described.

The only difference lies in the joint body 7, which has one and the outside and each set. The valve holes 75 through which the connecting portions 73 and 74 are connected to the shaft tubes 731 and 741 provide the control plugs 71 to be screwed, and selectively open and close the communication between the sleeve portions 73 and 74 of the shaft tubes 731 and 741.

The above description is only a preferred embodiment of the present creation. It is intended that the features of the present invention are not intended to limit the scope of the present embodiments, and that the changes made by those skilled in the art in light of the present invention, as well as those skilled in the art, should still be Covered by this creation range.

1‧‧‧Connector body

11‧‧‧ socket

4‧‧‧ hollow bolts

91‧‧‧ pipes

Claims (7)

A refrigerant pipe joint structure, comprising: a joint body; at least one set end, the sleeve end is formed on the joint body, has an open operation space outward, and a through hole is formed in the operation a shaft tube and a shaft tube communicating with the joint body, and two inner thread segments and a slanting portion respectively formed at two ends of the inner diameter surface of the sleeve end; at least one first clamping ring is sleeved on the outer circumference of the shaft tube The edge has a first oblique plane and a first section, the first inclined plane matching the inclined section; at least one second clamping ring is sleeved on the outer circumference of the shaft Each of the two ends has a second oblique section and a second section, the second section is abutted with the first section; and at least one hollow bolt has an axially extending bolt body, a bolt hole formed through the bolt body, two threads formed on the outer surface of the outer surface of the bolt body and a polygonal head, and a bolt inclined surface formed on the other end of the polygon head different from the bolt hole; The hollow bolt is screwed to the socket end corresponding to the internal thread segment A top of the first force, the deformation of the second clamping ring. The refrigerant pipe joint structure according to claim 1, wherein the joint system is integrally formed with an air conditioner as a refrigerant inlet and outlet. The refrigerant pipe joint structure according to claim 1, wherein the joint system is a double joint. The refrigerant pipe joint structure according to claim 1, wherein the joint system is a three-way joint. The refrigerant pipe joint structure according to claim 1, wherein the joint system is a control valve. The refrigerant pipe joint structure according to any one of claims 1 to 5, wherein the first clamping ring is selected from a non-metallic material having a plastic deformation capability. The refrigerant pipe joint structure according to claim 6, wherein the second clamping ring is selected from a metal material having a plastic deformation capability.