Elbow convenient to assemble

Abstract

The elbow convenient to assemble comprises straight sections and a bent section, the bent section is fixedly connected between the straight sections, a first connector is fixedly connected to an end opening of each straight section, a gasket is fixedly connected to the surface of each first connector, a threaded opening is formed in the inner side of each straight section, a plurality of pin holes are formed in each first connector, and the threaded openings are communicated with the pin holes. And an end hole is formed in the first connector, the end hole is spherical, the end hole is communicated with the pin hole, and a connecting pipe is in threaded connection with the interior of the threaded opening. The utility model has the advantages that: in the device, when the pipe fitting and the elbow are assembled and connected, the connecting pipe is screwed into the threaded opening of the straight section to be tightened, then the first joint is aligned with the second joint and the pin hole, the locking pin and the flexible ball head are hit into the pin hole, and finally the flexible ball head is clamped into the end hole, so that the standard interface design is adopted; the quick connection of the pipe fitting and the elbow is realized through simple rotary fastening and pin knocking modes, and the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline elbows, in particular to an elbow which is easy to assemble. Background Art

[0002] Pipe elbow is a kind of pipe fitting used to change the direction of the pipeline in the pipeline system. According to the angle: the common elbow angles are 45°, 90°, and 180°. In addition, there are elbows with other abnormal angles such as 60° to meet the needs of different pipeline systems. According to the material: the materials of the elbow include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics.

[0003] Traditional pipe elbow connection methods, such as welding and flange connection, require high technical requirements and a long installation time. For example, when connecting with a flange, it is necessary to align the pipe with the flange of the elbow, and then install the bolts one by one and tighten multiple nuts, which is inconvenient for quick assembly of the elbow. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide an elbow that is easy to assemble, so as to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides an elbow that is easy to assemble, including a straight section and a curved section, wherein the curved section is fixedly connected between the straight sections;

[0007] A first joint is fixedly connected to the end of the straight section, and a gasket is fixedly connected to the surface of the first joint;

[0008] A threaded opening is provided on the inner side of the straight section, a plurality of pin holes are provided on the first joint, an end hole is provided inside the first joint, the end hole is spherical, and the end hole is connected to the pin hole;

[0009] A pipe is threadedly connected in the threaded opening, a second joint is fixedly connected to the end of the pipe, and a pipe fitting is fixedly connected to one side of the second joint;

[0010] The bottom surface of the second joint abuts against the top surface of the gasket. The second joint is provided with a plurality of pin holes. Locking pins are inserted into the pin holes. The ends of the locking pins are fixedly connected with flexible ball heads and the flexible ball heads are inserted into the end holes.

[0011] Preferably, any of the above schemes is that the straight section and the curved section are integrally formed, and the angle of the curved section is ninety degrees.

[0012] Adopt the above technical solution: In order to simplify the connection structure, a new type of quick connection system is developed. This system can adopt a standardized interface design and realize the quick connection of pipe fittings and elbows through simple rotation, tightening and knocking, which greatly improves the assembly efficiency.

[0013] Preferably, in any of the above schemes, the gasket is bonded to the surface of the first joint, and the material of the gasket is rubber.

[0014] According to the above technical solution, the elbow is composed of two straight sections, a curved section, and two first joints, and the elbow needs to be quickly assembled and connected with the pipe fitting.

[0015] Preferably, any of the above solutions is that the pin hole on the first joint is aligned with the pin hole on the second joint, and the connecting pipe, the second joint and the pipe fitting are an integrated structure.

[0016] Preferably, any of the above solutions passes through the second joint, and the shape of the pin hole matches the shape of the locking pin.

[0017] Preferably, any of the above schemes is that the locking pin is bonded to the flexible ball head or the flexible ball head is embedded in the end of the locking pin, and the material of the flexible ball head is rubber.

[0018] The above technical solution is adopted: the locking pin is made of stainless steel. The core structure of this device is: a first joint, a threaded opening, a pin hole, an end hole, a second joint, a connecting pipe, a locking pin and a flexible ball head. In this device, when the pipe fitting is assembled and connected with the elbow, the connecting pipe is rotated into the threaded opening of the straight section and tightened, and then the first joint is aligned with the second joint, the pin hole is aligned, the locking pin and the flexible ball head are hammered into the pin hole, and finally the flexible ball head is inserted into the end hole. A standardized interface design is adopted, and the pipe fitting and the elbow are quickly connected by simple rotation, tightening and knocking pins, which greatly improves the assembly efficiency.

[0019] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0020] The elbow which is easy to assemble is arranged by matching a first joint, a threaded opening, a pin hole, an end hole, a second joint, a pipe, a locking pin and a flexible ball head. In the device, when the pipe fitting is assembled and connected with the elbow, the pipe is rotated into the threaded opening of the straight section and tightened, and then the first joint is aligned with the second joint, the pin hole is aligned, the locking pin and the flexible ball head are hammered into the pin hole, and finally the flexible ball head is clamped into the end hole. A standardized interface design is adopted, and a quick connection between the pipe fitting and the elbow is achieved by a simple rotation tightening and knocking pin method, thereby greatly improving assembly efficiency.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the threaded opening of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first joint of the utility model;

[0026] Figure 4 It is a schematic diagram of the local structure of the connection part of the utility model.

[0027] In the figure: 1-straight section, 2-bend section, 3-first joint, 4-gasket, 5-threaded mouth, 6-pin hole, 7-end hole, 8-connecting pipe, 9-second joint, 11-pipe fitting, 12-locking pin, 13-flexible ball head. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1-4 As shown, the elbow which is easy to assemble comprises a straight section 1 and a curved section 2, wherein the straight section 1 is fixedly connected with the curved section 2;

[0031] A first joint 3 is fixedly connected to the end of the straight section 1, and a gasket 4 is fixedly connected to the surface of the first joint 3;

[0032] A threaded opening 5 is provided on the inner side of the straight section 1, a plurality of pin holes 6 are provided on the first joint 3, and an end hole 7 is provided inside the first joint 3. The end hole 7 is spherical and communicates with the pin hole 6;

[0033] A pipe 8 is threadedly connected in the threaded opening 5, a second joint 9 is fixedly connected to the end of the pipe 8, and a pipe fitting 11 is fixedly connected to one side of the second joint 9;

[0034] The bottom surface of the second joint 9 abuts against the top surface of the gasket 4 . The second joint 9 is provided with a plurality of pin holes 6 . Locking pins 12 are inserted into the pin holes 6 . The ends of the locking pins 12 are fixedly connected with flexible ball heads 13 and the flexible ball heads 13 are inserted into the end holes 7 .

[0035] Embodiment 1: The straight section 1 and the curved section 2 are integrally formed, and the angle of the curved section 2 is ninety degrees. In order to simplify the connection structure, a new type of quick connection system is developed. This system can adopt a standardized interface design, and realize the quick connection between the pipe fitting 11 and the elbow by simple rotation, tightening and knocking, which greatly improves the assembly efficiency. The gasket 4 is bonded to the surface of the first joint 3, and the material of the gasket 4 is rubber. The elbow is composed of two straight sections 1, a curved section 2, and two first joints 3, and the elbow needs to be quickly assembled and connected with the pipe fitting 11.

[0036] Embodiment 2: The pin hole 6 on the first joint 3 is aligned with the pin hole 6 on the second joint 9, and the pipe 8, the second joint 9 and the pipe fitting 11 are an integrated structure. The pin hole 6 passes through the second joint 9, and the shape of the pin hole 6 matches the shape of the locking pin 12. The locking pin 12 is bonded to the flexible ball head 13 or the flexible ball head 13 is embedded in the end of the locking pin 12, and the material of the flexible ball head 13 is rubber.

[0037] The working principle of the utility model is as follows:

[0038] When the pipe fitting 11 is assembled and connected with the elbow, the connecting pipe 8 is rotated into the threaded opening of the straight section 1 and tightened, then the first joint 3 is aligned with the second joint 9, the pin hole 6 is aligned, the locking pin 12 and the flexible ball head 13 are hammered into the pin hole 6, and finally the flexible ball head 13 is snapped into the end hole 7. At this time, the assembly connection between the pipe fitting 11 and the elbow is completed, and the gasket 4 is located between the first joint 3 and the second joint 9.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The elbow which is easy to assemble is arranged by the coordination of the first joint 3, the threaded opening 5, the pin hole 6, the end hole 7, the second joint 9, the pipe 8, the locking pin 12 and the flexible ball head 13. In the device, when the pipe 11 is assembled and connected with the elbow, the pipe 8 is rotated into the threaded opening of the straight section 1 and tightened, and then the first joint 3 is aligned with the second joint 9, the pin hole 6 is aligned, the locking pin 12 and the flexible ball head 13 are hammered into the pin hole 6, and finally the flexible ball head 13 is snapped into the end hole 7. A standardized interface design is adopted, and the quick connection of the pipe 11 and the elbow is achieved by simple rotation, tightening and knocking pins, thereby greatly improving the assembly efficiency.

Claims

1. An elbow that is easy to assemble, characterized in that: It comprises a straight section (1) and a curved section (2), wherein the curved section (2) is fixedly connected between the straight sections (1); A first joint (3) is fixedly connected to the end of the straight section (1), and a gasket (4) is fixedly connected to the surface of the first joint (3); A threaded opening (5) is provided on the inner side of the straight section (1), a plurality of pin holes (6) are provided on the first joint (3), an end hole (7) is provided inside the first joint (3), the end hole (7) is spherical, and the end hole (7) is connected to the pin hole (6); A connecting pipe (8) is threadedly connected in the threaded opening (5), a second joint (9) is fixedly connected to the end of the connecting pipe (8), and a pipe fitting (11) is fixedly connected to one side of the second joint (9); The bottom surface of the second joint (9) abuts against the top surface of the gasket (4); a plurality of pin holes (6) are provided on the second joint (9); locking pins (12) are inserted into the pin holes (6); the ends of the locking pins (12) are fixedly connected with flexible ball heads (13) and the flexible ball heads (13) are inserted into the end holes (7).

2. An elbow that is easy to assemble as claimed in claim 1, characterized in that: The straight section (1) and the curved section (2) are integrally formed, and the angle of the curved section (2) is ninety degrees.

3. An elbow that is easy to assemble as claimed in claim 2, characterized in that: The gasket (4) is bonded to the surface of the first joint (3), and the material of the gasket (4) is rubber.

4. An elbow that is easy to assemble as claimed in claim 3, characterized in that: The pin hole (6) on the first joint (3) is aligned with the pin hole (6) on the second joint (9); the connecting pipe (8), the second joint (9) and the pipe fitting (11) are an integrated structure.

5. An elbow that is easy to assemble as claimed in claim 4, characterized in that: The pin hole (6) passes through the second joint (9), and the shape of the pin hole (6) is compatible with the shape of the locking pin (12).

6. An elbow that is easy to assemble as claimed in claim 5, characterized in that: The locking pin (12) is bonded to the flexible ball head (13) or the flexible ball head (13) is embedded in the end of the locking pin (12), and the material of the flexible ball head (13) is rubber.

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