Novel elbow joint

Abstract

The utility model discloses a novel elbow joint which comprises two pipe sleeves and a joint pipe body communicated with the two connecting pipe bodies, annular protrusions are arranged on the inner sides of connectors at the two ends of the joint pipe body, an installation groove is formed between the annular protrusions and the inner side of the joint pipe body, a first sealing ring is arranged in the installation groove, and a second sealing ring is arranged in the first sealing ring. A mounting protrusion is arranged at the end of the connecting pipe body, the connecting pipe body is connected with the mounting groove in an inserted mode, and the mounting protrusion abuts against the first sealing ring. The lantern ring on the pipe sleeve of the novel elbow joint is in threaded connection with the joint pipe body and can abut against the mounting protrusion of the connecting pipe body at the same time, then the lantern ring presses the end of the connecting pipe body on the annular protrusion on the inner side of the joint pipe body, the overall connecting strength is improved, the end of the connecting pipe body is embedded in the mounting groove of the annular protrusion, and therefore the connecting pipe body can be conveniently connected with the elbow joint. And the first sealing ring in the mounting groove can seal the mounting bulge of the connecting pipe body, so that the sealing performance between the connecting pipe body and the joint pipe body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elbows, in particular to a novel elbow joint. Background Art

[0002] An elbow often refers to a curved pipe, which is used to change the flow direction of the pipe and make the fluid flow to the required position. The elbow is generally composed of a joint and a connecting sleeve. The joint is provided with an external thread, and the connecting sleeve is provided with an internal thread. The connecting sleeve is respectively connected to the joint and the pipe thread to connect the joint and the pipe. However, the connecting sleeve, the joint and the pipe are installed only by threaded connection, which makes the overall connection strength low, and the sealing between the connecting sleeve and the joint and the pipe is poor. After long-term use, the pipe is prone to loosening and leakage at the connection. Therefore, it is necessary to design a new elbow structure to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a new type of elbow joint, the sleeve of which can be threadedly connected to the joint pipe body and can be abutted against the mounting protrusion of the connecting pipe body, so that the sleeve can press the end of the connecting pipe body against the annular protrusion inside the joint pipe body and improve the overall connection strength, while the end of the connecting pipe body is embedded in the mounting groove of the annular protrusion, and the first sealing ring in the mounting groove can seal the mounting protrusion of the connecting pipe body, thereby improving the sealing between the connecting pipe body and the joint pipe body.

[0004] A novel elbow joint comprises two pipe sleeves and a joint pipe body connecting two connecting pipe bodies, annular protrusions are arranged on the inner sides of interfaces at both ends of the joint pipe body, and a mounting groove is formed between the annular protrusion and the inner side of the joint pipe body, a first sealing ring is arranged in the mounting groove, a mounting protrusion is arranged on the end of the connecting pipe body, and the connecting pipe body is plugged into the mounting groove, and the mounting protrusion is abutted against the first sealing ring, a collar is arranged on one side of the pipe sleeve, and the outer side of the collar of the pipe sleeve is threadedly connected to the mounting groove, and the collar is abutted against the mounting protrusion.

[0005] Preferably, the annular protrusion is connected to the inner side of the joint pipe body through an extension piece, the inner diameter of the connecting pipe body corresponds to the outer diameter of the annular protrusion, and the first sealing ring is arranged on the extension piece.

[0006] Preferably, the mounting protrusion is arranged perpendicularly to the outer side of the end of the connecting pipe body, the mounting protrusion surrounds the outer side of the connecting pipe body, and the distance between the outer diameter and the inner diameter of the mounting protrusion is smaller than the distance between the outer diameter and the inner diameter of the first sealing ring.

[0007] Preferably, the length of the collar is smaller than the length of the annular protrusion, an external thread section is provided on the outer side of the collar, an internal thread section is provided on the inner side of the interface of the joint pipe body, and the collar is threadedly connected to the internal thread section of the joint pipe body via the external thread section.

[0008] Preferably, a second sealing ring is provided on a side of the pipe sleeve facing the external thread section, and the second sealing ring is interposed between the pipe sleeve and the external thread section.

[0009] Preferably, an annular groove is provided on the outside of the interface of the joint pipe body, a convex ring is provided around one side of the sleeve provided with the collar, and the convex ring of the sleeve is plugged into the annular groove of the joint pipe body.

[0010] The beneficial effect of the utility model is that the novel elbow joint cooperates with the joint pipe body through the mutual cooperation of the pipe sleeve and the joint pipe body, so that the collar on the pipe sleeve can be abutted against the mounting protrusion of the connecting pipe body while being threadedly connected to the joint pipe body, thereby making the collar press the end of the connecting pipe body against the annular protrusion inside the joint pipe body and improving the overall connection strength, while the end of the connecting pipe body is embedded in the mounting groove of the annular protrusion, and the first sealing ring in the mounting groove can seal the mounting protrusion of the connecting pipe body, thereby improving the sealing between the connecting pipe body and the joint pipe body and reducing the occurrence of loosening and leakage of the connecting pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 This is the front view of the utility model;

[0012] Attached Figure 2 It is a schematic diagram of the structure of the utility model;

[0013] Attached Figure 3 This is a schematic diagram of the structure of the joint pipe body in the utility model;

[0014] Attached Figure 4 This is a left side view of the joint pipe body of the utility model;

[0015] Attached Figure 5 This is a schematic diagram of the structure of the middle pipe sleeve of the utility model;

[0016] Attached Figure 6 It is a right side view of the middle pipe sleeve of the utility model.

[0017] In the figure: 1 pipe sleeve, 2 connecting pipe body, 3 joint pipe body, 4 annular protrusion, 5 mounting groove, 6 first sealing ring, 7 mounting protrusion, 8 sleeve ring, 9 extension piece, 10 external thread section, 11 internal thread section, 12 second sealing ring, 13 annular groove, 14 convex ring. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept to be protected by the present invention.

[0019] like Figures 1 to 6 As shown, a new type of elbow joint comprises two pipe sleeves 1 and a joint pipe body 3 connecting two connecting pipe bodies 2, annular protrusions 4 are arranged on the inner sides of the interfaces at both ends of the joint pipe body 3, and a mounting groove 5 is formed between the annular protrusion 4 and the inner side of the joint pipe body 3, a first sealing ring 6 is arranged in the mounting groove 5, a mounting protrusion 7 is arranged at the end of the connecting pipe body 2, and the connecting pipe body 2 is plugged into the mounting groove 5, and the mounting protrusion 7 is abutted against the first sealing ring 6, a collar 8 is arranged on one side of the pipe sleeve 1, and the outer side of the collar 8 of the pipe sleeve 1 is threadedly connected to the mounting groove 5, and the collar 8 is abutted against the mounting protrusion 7.

[0020] The working principle of the new elbow joint described in the utility model is achieved through the cooperation between the pipe sleeve 1 and the joint pipe body 3. Figures 1 to 5 As shown in the figure, the staff first inserts the end of the connecting pipe body 2 into the installation groove 5 between the inner side of the joint pipe body 3 and the annular protrusion 4, then aligns the collar 8 of the pipe sleeve 1 with the installation groove 5 and threadedly connects the collar 8 with the joint pipe sleeve 1, so that the collar 8 is gradually inserted into the installation groove 5, and then the collar 8 presses the installation protrusion 7 of the connecting pipe body 2, so that the two connecting pipe bodies 2 and the two interfaces of the joint pipe body 3 are connected through the two pipe sleeves 1. Compared with the traditional elbow, the collar 8 on the new elbow joint pipe sleeve 1 and the connecting pipe sleeve 1 are more When the head tube body 3 is threadedly connected, it can be abutted against the mounting protrusion 7 of the connecting tube body 2, so that the ring 8 presses the end of the connecting tube body 2 onto the annular protrusion 4 on the inner side of the joint tube body 3 and improves the overall connection strength. The end of the connecting tube body 2 is embedded in the mounting groove 5 of the annular protrusion 4, and the first sealing ring 6 in the mounting groove 5 can seal the mounting protrusion 7 of the connecting tube body 2, thereby improving the sealing between the connecting tube body 2 and the joint tube body 3 and reducing the occurrence of loosening and leakage of the connecting tube body 2.

[0021] Specifically, the annular protrusion 4 is connected to the inner side of the joint pipe body 3 through an extension piece 9, the inner diameter of the connecting pipe body 2 corresponds to the outer diameter of the annular protrusion 4, and the first sealing ring 6 is arranged on the extension piece 9, wherein the mounting protrusion 7 is vertically arranged to the outer side of the end of the connecting pipe body 2, the mounting protrusion 7 surrounds the outer side of the connecting pipe body 2, and the distance between the outer diameter and the inner diameter of the mounting protrusion 7 is smaller than the distance between the outer diameter and the inner diameter of the first sealing ring 6, such as Figures 1 to 6As shown, the end of the connecting tube body 2 is inserted into the mounting groove 5 formed by the inner side of the joint tube body 3, the extension piece 9 and the annular protrusion 4, and then the end of the connecting tube body 2 is embedded in the inner side of the joint tube body 3, and the ring 8 of the pipe sleeve 1 is used to limit the connecting tube body 2 while pressing the mounting protrusion 7 on the outer side of the connecting tube body 2, thereby improving the connection strength between the connecting tube body 2 and the joint tube body 3.

[0022] Further, the length of the collar 8 is less than the length of the annular protrusion 4, the outer side of the collar 8 is provided with an external thread section 10, the inner side of the interface of the joint pipe body 3 is provided with an internal thread section 11, the collar 8 is threadedly connected with the internal thread section 11 of the joint pipe body 3 through the external thread section 10, wherein the side of the pipe sleeve 1 facing the external thread section 10 is provided with a second sealing ring 12, and the second sealing ring 12 is between the pipe sleeve 1 and the external thread section 10, such as Figures 1 to 6 As shown, the external threaded end of the collar 8 is threadedly connected to the internal threaded section 11 of the joint pipe body 3, the collar 8 cooperates with the annular protrusion 4 to limit the end of the connecting pipe body 2, and the collar 8 presses the installation protrusion 7 of the connecting pipe body 2, and the installation protrusion 7 presses the first sealing ring 6, which can improve the connection sealing between the connecting pipe body 2 and the joint pipe body 3, and the second sealing ring 12 on the collar 8 can be accommodated in the installation groove 5, which can improve the connection sealing between the pipe sleeve 1 and the joint pipe body 3.

[0023] Furthermore, an annular groove 13 is provided on the outer side of the interface of the joint pipe body 3, and a convex ring 14 is provided around one side of the sleeve 1 provided with the collar 8, and the convex ring 14 of the sleeve 1 is plugged into the annular groove 13 of the joint pipe body 3, as shown in FIG. Figures 1 to 6 As shown, after the sleeve 1 is connected to the joint body 3, the convex ring 14 can be inserted into the annular groove 13, which not only makes the overall appearance beautiful, but also can cover the gap between the sleeve ring 8 and the joint body 3, thereby improving the connection sealing between the sleeve 1 and the joint body 3.

[0024] The above are only specific embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new type of elbow joint, characterized by: It comprises two pipe sleeves and a joint pipe body connecting the two connecting pipe bodies, the inner sides of the interfaces at both ends of the joint pipe body are provided with annular protrusions, and a mounting groove is formed between the annular protrusion and the inner side of the joint pipe body, a first sealing ring is provided in the mounting groove, a mounting protrusion is provided at the end of the connecting pipe body, and the connecting pipe body is plugged into the mounting groove, and the mounting protrusion is abutted against the first sealing ring, a collar is provided on one side of the pipe sleeve, and the outer side of the collar of the pipe sleeve is threadedly connected to the mounting groove, and the collar is abutted against the mounting protrusion.

2. A novel elbow joint according to claim 1, characterized in that: The annular protrusion is connected to the inner side of the joint pipe body through an extension piece, the inner diameter of the connecting pipe body corresponds to the outer diameter of the annular protrusion, and the first sealing ring is arranged on the extension piece.

3. A new elbow joint according to claim 2, characterized in that: The mounting protrusion is vertically arranged on the outer side of the end of the connecting pipe body, the mounting protrusion surrounds the outer side of the connecting pipe body, and the distance between the outer diameter and the inner diameter of the mounting protrusion is smaller than the distance between the outer diameter and the inner diameter of the first sealing ring.

4. A novel elbow joint according to claim 3, characterized in that: The length of the collar is smaller than the length of the annular protrusion, an external thread section is arranged on the outer side of the collar, an internal thread section is arranged on the inner side of the interface of the joint pipe body, and the collar is threadedly connected with the internal thread section of the joint pipe body via the external thread section.

5. A novel elbow joint according to claim 4, characterized in that: A second sealing ring is arranged on a side of the pipe sleeve facing the external thread section, and the second sealing ring is interposed between the pipe sleeve and the external thread section.

6. A novel elbow joint according to claim 5, characterized in that: The joint pipe body The outer side of the interface is provided with an annular groove, and the side of the sleeve provided with the collar is provided with a convex ring around it. The convex ring of the pipe sleeve is plugged into the annular groove of the joint pipe body.

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