Double-pipe elbow joint convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of elbow connectors, and discloses a double-pipe elbow connector convenient to disassemble and assemble, which comprises a main pipe, the left side and the right side of the main pipe are fixedly connected with auxiliary pipes, the surfaces of the auxiliary pipes are in threaded connection with fastening sleeves, and the interiors of the fastening sleeves are fixedly connected with limiting strips. The rear end of the limiting strip is connected with the front end of the auxiliary pipe in an attached mode, the front end of the limiting strip is fixedly connected with a sealing strip, the front end of the auxiliary pipe is fixedly connected with a first non-slip mat, and the front end of the first non-slip mat is connected with the rear end of the limiting strip in an attached mode. When a user connects the connecting pipe, the user can firstly rotate the fastening sleeve inwards to enable the fastening sleeve to be in threaded connection with the auxiliary pipe, and by arranging the limiting strip, after the fastening sleeve is rotated to a certain position, the front end of the auxiliary pipe is attached to the rear end of the limiting strip for limiting; and therefore, the situation that the connecting pipe cannot be connected due to the fact that the fastening sleeve is rotated too much by a user is avoided, and the user can disassemble and assemble conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow joints, in particular to a double-tube elbow joint which is easy to assemble and disassemble. Background Art

[0002] A double-tube elbow joint is a pipe fitting used to connect two pipes and change the flow direction. It usually consists of two pipe openings and a curved middle part, which allows the pipes to turn in different directions. This joint is often used in locations in piping systems where the flow direction needs to be changed or obstacles need to be avoided.

[0003] A Chinese patent discloses an elbow joint (authorization announcement number CN202914955U). The patented technology uses nuts to connect and fix the L-shaped elbow and the straight pipe, which is easy to connect; the annular baffle on the connecting nut can fix the sealing gasket to prevent it from falling off, and at the same time, it can squeeze the sealing gasket to ensure good sealing performance; the internal corners of the L-shaped elbow are curved surfaces, which will not form dead corners and are easy to use.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the existing two-way joints and steel pipes are generally connected by direct butt welding, which requires the staff to perform tedious maintenance when the two-way joint fails, resulting in reduced work efficiency of the staff. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the prior art has the disadvantage of being inconvenient to disassemble and assemble, so we propose a double-tube elbow joint which is easy to disassemble and assemble.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a double-tube elbow joint that is easy to disassemble and assemble, including a main pipe, and auxiliary pipes are fixedly connected to the left and right sides of the main pipe. The surface of the auxiliary pipe is threadedly connected with a fastening sleeve, and the interior of the fastening sleeve is fixedly connected with a limit strip, and the rear end of the limit strip is fit-connected with the front end of the auxiliary pipe.

[0007] Preferably, a sealing strip is fixedly connected to the front end of the limiting strip.

[0008] Preferably, a first anti-slip pad is fixedly connected to the front end of the auxiliary pipe, and the front end of the first anti-slip pad is fit-connected to the rear end of the limiting strip.

[0009] Preferably, a connecting block is fixedly connected to the interior of the main pipe, and a second anti-slip pad is fixedly connected to the bottom end of the connecting block.

[0010] Preferably, the fastening sleeve is made of stainless steel.

[0011] Preferably, the sealing strip is made of nitrile rubber.

[0012] Technical effects and advantages of the utility model:

[0013] In the utility model, when the user connects the connecting pipe, the user can first rotate the fastening sleeve inwards to make the fastening sleeve and the auxiliary pipe threadedly connected. By setting a limit strip, after the fastening sleeve is rotated to a certain position, the front end of the auxiliary pipe and the rear end of the limit strip are fitted and limited, thereby avoiding the situation where the user cannot connect the connecting pipe due to excessive rotation of the fastening sleeve, thereby facilitating disassembly and assembly by the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the auxiliary pipe of the utility model;

[0016] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0017] Figure 4 It is a schematic diagram of the internal structure of the main pipe of the utility model.

[0018] Legend: 1. Main pipe; 2. Sub-pipe; 3. Fastening sleeve; 4. Limit strip; 5. Sealing strip; 6. First anti-slip pad; 7. Connecting block; 8. Second anti-slip pad. DETAILED DESCRIPTION

[0019] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] Reference Figure 1 - Figure 3 As shown, the utility model provides a technical solution: a double-tube elbow joint that is easy to disassemble and assemble, comprising a main pipe 1, with auxiliary pipes 2 fixedly connected to the left and right sides of the main pipe 1, a fastening sleeve 3 threadedly connected to the surface of the auxiliary pipe 2, a limiting strip 4 fixedly connected inside the fastening sleeve 3, a rear end of the limiting strip 4 fits and connects with the front end of the auxiliary pipe 2, when the user connects the connecting pipe, the user can first rotate the fastening sleeve 3 inwards to thread the fastening sleeve 3 and the auxiliary pipe 2, by setting the limiting strip 4, after the fastening sleeve 3 is rotated to a certain position, the front end of the auxiliary pipe 2 is fit and limited with the rear end of the limiting strip 4, thereby avoiding the situation that the user cannot connect the connecting pipe due to rotating the fastening sleeve 3 too much, thereby facilitating disassembly and assembly by the user.

[0021] Reference Figure 2 and Figure 3As shown, in this embodiment: the front end of the limit strip 4 is fixedly connected with the sealing strip 5. When the connecting pipe is connected to the inside of the fastening sleeve 3 and fits with the limit strip 4, the sealing strip 5 is arranged to make the sealing strip 5 fit with the connecting pipe, thereby avoiding liquid leakage and waste of resources after the connecting pipe is connected.

[0022] Reference Figure 2 and Figure 3 As shown, in this embodiment: the front end of the auxiliary tube 2 is fixedly connected with a first anti-skid pad 6, and the front end of the first anti-skid pad 6 is fitted and connected with the rear end of the limiting strip 4. When the user rotates the auxiliary tube 2 inward to connect it with the fastening sleeve 3, the first anti-skid pad 6 is provided to avoid slipping of the auxiliary tube 2 when it fits with the limiting strip 4, which causes the fastening sleeve 3 to be unable to be normally connected to the auxiliary tube 2.

[0023] Reference Figure 4 As shown, in this embodiment: the interior of the main pipe 1 is fixedly connected with a connecting block 7, and the bottom end of the connecting block 7 is fixedly connected with a second anti-skid pad 8. When the user connects the main pipe 1 to the main connecting pipe, by setting the second anti-skid pad 8, when the main connecting pipe is connected to the interior of the main pipe 1, it fits with the second anti-skid pad 8 to prevent slipping, thereby preventing the device from slipping and causing the user to be unable to use it normally.

[0024] Reference Figure 2 As shown, in this embodiment: the material of the fastening sleeve 3 is stainless steel, which has excellent corrosion resistance and high strength, thereby avoiding corrosion of the device during long-term use. It is suitable for pipeline systems in various corrosive media or high-temperature environments, saving costs for users.

[0025] Reference Figure 3 As shown, in this embodiment: the material of the sealing strip 5 is nitrile rubber material, which has good oil resistance, can maintain good stability when in contact with oil media such as petroleum, fuel, and lubricating oil, and can be used for a long time in a friction and wear environment, avoiding damage caused by long-term use and requiring users to frequently replace the sealing strip 5.

[0026] The practical working principle of the present invention is as follows: when the user connects the connecting pipe, the user can first rotate the fastening sleeve 3 inwards to make the fastening sleeve 3 and the auxiliary pipe 2 be threadedly connected, and by setting the limiting strip 4, after the fastening sleeve 3 is rotated to a certain position, the front end of the auxiliary pipe 2 and the rear end of the limiting strip 4 are fitted and limited, thereby avoiding the situation that the user cannot connect the connecting pipe due to excessive rotation of the fastening sleeve 3, thereby facilitating the user's disassembly and assembly, and when the connecting pipe is connected to the inside of the fastening sleeve 3 and fits with the limiting strip 4, by setting the sealing strip 5, the sealing strip 5 is fitted with the connecting pipe, thereby avoiding liquid leakage after the connecting pipe is connected, causing waste of resources, and when the user rotates the auxiliary pipe 2 inwards to connect with the fastening sleeve 3, by setting the first anti-slip pad 6, thereby avoiding the auxiliary pipe 2 from fitting with the limiting strip 4 Slipping occurs, causing the fastening sleeve 3 to be unable to be normally connected to the auxiliary pipe 2. When the user connects the main pipe 1 to the main connecting pipe, a second anti-skid pad 8 is provided, so that when the main connecting pipe is connected to the inside of the main pipe 1, it fits with the second anti-skid pad 8 to prevent slipping, thereby avoiding the device from slipping and causing the user to be unable to use it normally. Stainless steel has excellent corrosion resistance and high strength, thereby avoiding corrosion of the device during long-term use. It is suitable for pipeline systems in various corrosive media or high-temperature environments, saving costs for users. Nitrile rubber material has good oil resistance. It can maintain good stability when in contact with oil media such as petroleum, fuel, and lubricating oil, and can be used for a long time in a friction and wear environment, avoiding damage caused by long-term use, requiring users to frequently replace the sealing strip 5.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-tube elbow joint that is easy to assemble and disassemble, comprising a main pipe (1), characterized in that: The left and right sides of the main pipe (1) are fixedly connected to the auxiliary pipe (2), the surface of the auxiliary pipe (2) is threadedly connected to a fastening sleeve (3), the interior of the fastening sleeve (3) is fixedly connected to a limit strip (4), and the rear end of the limit strip (4) is fitted and connected to the front end of the auxiliary pipe (2).

2. The double-tube elbow joint that is easy to assemble and disassemble according to claim 1, characterized in that: The front end of the limiting strip (4) is fixedly connected to a sealing strip (5).

3. The double-tube elbow joint that is easy to assemble and disassemble according to claim 1, characterized in that: The front end of the auxiliary pipe (2) is fixedly connected to a first anti-slip pad (6), and the front end of the first anti-slip pad (6) is fitted and connected to the rear end of the limiting strip (4).

4. The double-tube elbow joint that is easy to assemble and disassemble according to claim 1, characterized in that: A connecting block (7) is fixedly connected to the interior of the main pipe (1), and a second anti-slip pad (8) is fixedly connected to the bottom end of the connecting block (7).

5. The double-tube elbow joint that is easy to assemble and disassemble according to claim 1, characterized in that: The material of the fastening sleeve (3) is stainless steel.

6. The double-tube elbow joint that is easy to assemble and disassemble according to claim 2, characterized in that: The sealing strip (5) is made of nitrile rubber.

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